Injection type oxidation device for contaminated soil remediation

Abstract

The utility model relates to the technical field of soil remediation devices, and discloses an injection type oxidation device for contaminated soil remediation, which comprises a bottom plate, a stirring component for mixing is arranged at the top of the bottom plate, a suction pump is mounted on the right side of the top of the bottom plate, and the output end of the suction pump is fixedly connected with a heating box. A conveying module is fixedly connected to the left side of the heating box, a mixing box is fixedly connected to the left side of the conveying module, a shell is fixedly connected to the front side of the bottom of the bottom plate, a pressurizing pump is installed in the shell, a three-way valve is fixedly connected to the input end of the pressurizing pump, and a telescopic pipe is fixedly connected to the output end of the pressurizing pump; and the bottom of the telescopic pipe is fixedly connected with a limiting ring. According to the soil remediation device, the soil remediation efficiency and quality are effectively improved, the remediation period is shortened, and the cost is reduced. Meanwhile, due to the fact that the spraying range is enlarged, the missing area is reduced, and repairing is more thorough.

Description

TECHNICAL FIELD

[0001] The utility model belongs to soil remediation device technical field, especially relate to a kind of for contaminated soil remediation injection type oxidation device. BACKGROUND

[0002] With the acceleration of urbanization, soil pollution problem is increasingly serious, especially industrial contaminated sites, often contain a large number of organic and heavy metal pollutants, these pollutants not only affect soil quality, but also may contaminate groundwater resources through penetration, cause serious consequences. Therefore, research and development of effective soil and groundwater remediation technology is particularly urgent, for remediation of contaminated soil and groundwater injection type oxidation device is an advanced environmental protection equipment, it is directly injected into the ground by strong oxidant such as permanganate (Na / KMnO4), persulfate (such as 0248 etc.), utilize its strong oxidizing property to convert pollutants into low toxicity, easy biodegradable material, so as to effectively repair contaminated soil and groundwater.

[0003] But present part for contaminated soil remediation injection type oxidation device when injecting inside soil, cannot ensure that the liquid or gas injected can be fully and uniformly contacted with soil particles. This is mainly because the soil structure is complex, pore distribution is uneven, leading to diffusion path of injected material in soil is limited, cannot effectively cover the entire contaminated area. In addition, due to the improper control of injection pressure, flow rate and other factors, also can cause the penetration range of injected material in soil is insufficient, that is, only affect the area close to injection point, and cannot penetrate into more extensive contaminated zone, therefore, aiming at above insufficient, propose a kind of for contaminated soil remediation injection type oxidation device to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to make up for the above insufficient, the utility model provides a kind of for contaminated soil remediation injection type oxidation device, to improve the penetration range of part for contaminated soil remediation injection type oxidation device in prior art after injection insufficient problem.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides an injection type oxidation device for contaminated soil remediation, including bottom plate, the top of bottom plate is provided with the stirring assembly for mixing, the right side of top of bottom plate is installed with suction pump, the output of suction pump is fixedly connected with heating box, the left side of heating box is fixedly connected with conveying module, the left side of conveying module is fixedly connected with mixing box, the front side of bottom of bottom plate is fixedly connected with the shell, the inside installation of shell is provided with pressure pump, the input of pressure pump is fixedly connected with three way valve, the output of pressure pump is fixedly connected with telescopic pipe, the bottom of telescopic pipe is fixedly connected with limit ring, the outside rotation of limit ring is connected with rotating frame, the inside of rotating frame is fixedly connected with fixed frame, the top of fixed frame is fixedly connected with connecting rod, the outside of connecting rod is fixedly connected with a plurality of fan blade, the top of connecting rod is fixedly connected with fixed plate, the outside of rotating frame is fixedly connected with a plurality of injection head.

[0007] As a further description of the above technical solutions:

[0008] The stirring assembly includes a stirring tank, the bottom of the stirring tank is fixedly connected to the top right side of the bottom plate, a motor is installed on the top of the stirring tank, a drive shaft is fixedly connected to the output of the motor, a plurality of stirring blades are fixedly connected to the outside of the drive shaft, and a feed pipe is fixedly connected to the top of the stirring tank.

[0009] As a further description of the above technical solutions:

[0010] The output of the three-way valve is fixedly connected with a conveying pipe, the outside of the conveying pipe is fixedly connected with a one-way valve, the front side of the heating box is fixedly connected with a heater, the rear side of the heater is provided with a plurality of heating rods, the left side of the mixing box is fixedly connected with an output pipe, the outside of the output pipe is fixedly connected with an insulation pipe, and the rear side of the top of the bottom plate is fixedly connected with an air pump.

[0011] As a further description of the above technical solutions:

[0012] The output of the air pump is fixedly connected to the inside of the mixing box, and the input of the air pump can inject oxidant gas.

[0013] As a further description of the above technical solutions:

[0014] The outside of the drive shaft is rotatably connected to the inside of the stirring tank, and the top of the conveying pipe is fixedly connected to the inside of the stirring tank.

[0015] As a further description of the above technical solutions:

[0016] The left side of the top of the bottom plate is installed with a conveying pump, the right side of the top of the bottom plate is fixedly connected with a push rod, and the bottom of the bottom plate is fixedly connected with a plurality of moving wheels.

[0017] As a further description of the above technical solutions:

[0018] The input end of the conveying pump is fixedly connected to the inside of the mixing box, and the output end of the conveying pump is fixedly connected to the input end of the three-way valve.

[0019] As a further description of the above technical solutions:

[0020] The input end of the suction pump is fixedly connected to the inside of the stirring tank, and the output end of the suction pump is fixedly connected to the inside of the heating box.

[0021] The utility model has the following beneficial effects:

[0022] 1、In the utility model, high-pressure gas is delivered to the rotating frame through the telescopic pipe, when the high-pressure gas enters through the telescopic pipe, the fan blade rotates under the action of the gas, and airflow is generated to promote the uniform distribution of the gas. The high-pressure gas can be uniformly and widely sprayed into the soil, increasing the contact area with pollutants, thereby improving the purification effect. Not only the spraying range is expanded, but also the steam can penetrate deeper into the soil, enhancing the oxidation and decomposition effect on pollutants. The efficiency and quality of soil remediation are effectively improved, the remediation period is shortened, and the cost is reduced. At the same time, due to the expansion of the spraying range, the missed area is reduced, and the remediation is more thorough.

[0023] 2、In the utility model, the mixed solution is evaporated into a gaseous state under the action of the heater and the heating rod, the heat preservation pipe maintains the temperature of the gas in the transmission process, and condensation is avoided. Finally, the gaseous substance is mixed with the oxidizing agent gas injected through the air pump in the mixing box to form steam. The steam has strong oxidizing property. In addition, the design of the three-way valve, the conveying pipe and the check valve enables the harmful gas generated in the reaction process to be smoothly recovered and introduced into the stirring tank for reuse or purification, avoiding secondary pollution. Not only the effect of soil remediation is improved, but also the resource recycling is realized, the treatment cost is reduced, the environmental pollution is reduced, and the green and environmental protection concept is met. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of an injection type oxidation device for contaminated soil remediation is provided for the utility model;

[0025] Figure 2 A shell structure schematic view of an injection type oxidation device for contaminated soil remediation is provided for the utility model;

[0026] Figure 3 For Figure 2 An enlarged view of A in the middle;

[0027] Figure 4A mixing box structure schematic diagram of an injection type oxidation device for contaminated soil remediation is provided in the utility model.

[0028] Figure 5 A heating box structure schematic diagram of an injection type oxidation device for contaminated soil remediation is provided in the utility model.

[0029] Legend:

[0030] 1, bottom plate; 2, stirring tank; 3, motor; 4, drive shaft; 5, stirring blade; 6, feed pipe; 7, suction pump; 8, heating box; 9, conveying module; 901, heat preservation pipe; 902, output pipe; 10, mixing box; 11, conveying pump; 12, shell; 13, pressure pump; 14, three-way valve; 15, telescopic pipe; 16, limiting ring; 17, fixing frame; 18, connecting rod; 19, fan blade; 20, fixed plate; 21, rotating frame; 22, injection head; 23, conveying pipe; 24, check valve; 25, heater; 26, heating rod; 27, air pump; 28, push rod; 29, moving wheel. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Reference Figures 1 to 2 An embodiment provided by the utility model: an injection type oxidation device for contaminated soil remediation, comprising a bottom plate 1, the bottom plate 1 is the basic support structure of the whole device, and the bottom plate 1 is used to provide a stable platform. The top of the bottom plate 1 is provided with a stirring assembly for mixing, and the stirring assembly comprises a stirring tank 2, the bottom of the stirring tank 2 is fixedly connected to the top right side of the bottom plate 1, and the stirring tank 2 is a key container for mixing oxidant and clean water. A motor 3 is installed at the top of the stirring tank 2, and the motor 3 is a power source for driving the stirring process. The output end of the motor 3 is fixedly connected with a drive shaft 4, the drive shaft 4 is rotatably connected to the inside of the stirring tank 2, and a plurality of stirring blades 5 are fixedly connected to the outside of the drive shaft 4, and the drive shaft 4 is responsible for transmitting the rotary power generated by the motor 3 to the stirring blades. The top of the stirring tank 2 is fixedly connected with a feed pipe 6;

[0033] Reference Figures 2 to 4The top right side of the bottom plate 1 is provided with a suction pump 7, the input end of the suction pump 7 is fixedly connected to the inside of the stirring tank 2, the output end of the suction pump 7 is fixedly connected with a heating box 8, the suction pump 7 is used to extract and transport the mixed solution in the stirring tank 2 into the heating box 8, and prepare for the subsequent evaporation process. The output end of the suction pump 7 is fixedly connected to the inside of the heating box 8, the left side of the heating box 8 is fixedly connected with a conveying module 9, the left side of the conveying module 9 is fixedly connected with a mixing box 10, the mixing box 10 receives gaseous substances from the conveying module 9, and mixes with oxidizing agent gas injected by the air pump 27 to form the final reaction steam, the bottom front side of the bottom plate 1 is fixedly connected with a shell 12, the inside of the shell 12 is provided with a pressurizing pump 13, the input end of the pressurizing pump 13 is fixedly connected with a three-way valve 14, the three-way valve 14 is connected with the conveying pump 11, the pressurizing pump 13 and the telescopic pipe 15, the three-way valve 14 is used to control the flow direction to ensure that the fluid can be distributed to different paths as needed.

[0034] The top left side of the bottom plate 1 is provided with a conveying pump 11, the input end of the conveying pump 11 is fixedly connected to the inside of the mixing box 10, the output end of the conveying pump 11 is fixedly connected to the input end of the three-way valve 14, the output end of the pressurizing pump 13 is fixedly connected with a telescopic pipe 15, the pressurizing pump 13 receives the steam from the mixing box 10 through the three-way valve 14, and transports it to the telescopic pipe 15 after pressurization. Figure 2 The bottom of the telescopic pipe 15 is fixedly connected with a limiting ring 16, the outside of the limiting ring 16 is rotatably connected with a rotating frame 21, the limiting ring 16 is used to limit the position of the rotating frame 21, wherein as shown in Figure 2 The inside of the rotating frame 21 is fixedly connected with a fixing frame 17, the top of the fixing frame 17 is fixedly connected with a connecting rod 18, the outside of the connecting rod 18 is fixedly connected with a plurality of fan blades 19, the fan blades 19 rotate under the action of high-pressure gas to generate airflow to promote uniform distribution of the gas. The top of the connecting rod 18 is fixedly connected with a fixed plate 20, the outside of the rotating frame 21 is fixedly connected with a plurality of spray heads 22, the spray heads 22 are responsible for accurately spraying the treated gas into the soil to achieve the repair effect.

[0035] Referring to Figures 3 to 5The output end of the three-way valve 14 is fixedly connected with a conveying pipe 23, the top of the conveying pipe 23 is fixedly connected in the inside of the stirring tank 2, the outside of the conveying pipe 23 is fixedly connected with a check valve 24, the check valve 24 is used for controlling the direction of gas flow, and ensures that the gas can be smoothly returned to the stirring tank 2 for recycling or purification. The front side of the heating box 8 is fixedly connected with a heater 25, the rear side of the heater 25 is provided with a plurality of heating rods 26, the heating box 8 receives the mixed solution from the suction pump 7, and heats the mixed solution through the heater 25 and the heating rods 26, so that the solution is evaporated into a gaseous state. The left side of the mixing box 10 is fixedly connected with an output pipe 902, the output pipe 902 is responsible for conveying the heat-preserved gas to the next processing link. The outside of the output pipe 902 is fixedly connected with a heat preservation pipe 901, the heat preservation pipe 901 is used to maintain the temperature of the gas during transmission, so as to avoid condensation. The top rear side of the bottom plate 1 is fixedly connected with a gas pump 27, the input end of the gas pump 27 can inject oxidizing agent gas, the function of the gas pump 27 is to inject the oxidizing agent gas into the mixing box 10, and provide necessary raw materials for the mixing process. The output end of the gas pump 27 is fixedly connected in the inside of the mixing box 10, the top right side of the bottom plate 1 is fixedly connected with a push rod 28, and the bottom plate 1 is fixedly connected with a moving wheel 29 at the four corners.

[0036] Working principle: in the process of using the device, first, the push rod 28 can be pushed to move the device to the specified position by means of the moving wheel 29, then the rotating frame 21 can be manually aligned to the injection hole, at this time, the up and down position of the rotating frame 21 can be adjusted by means of the expansion or rotation of the rotating frame 21 and the expansion pipe 15, after the rotating frame 21 is placed in the injection hole which is pre-punched, then the oxidizing agent can be put into the inside of the stirring tank 2 through the feeding pipe 6, and a certain amount of water is added, then the motor 3 is started to stir the driving shaft 4 and 5 driven by the motor 3, so that the oxidizing agent can be fully stirred and mixed, then the suction pump 7 is started, the mixed solution in the inside of the stirring tank 2 is injected into the inside of the heating box 8, and the solution is evaporated into a gaseous state by means of the heater 25 and the heating rods 26, and then the oxidizing agent gas is injected into the inside of the mixing box 10 by means of the gas pump 27;

[0037] The mixed steam is finally injected into the inside of the telescopic pipe 15 through the delivery pump 11, the three-way valve 14 and the pressurizing pump 13, so that the high-pressure gas can impact the fan blade 19 to drive the fan blade 19 to rotate, and then the rotating frame 21 can be driven to rotate, so that the gas can be sprayed out through the spray head 22, and the rotation of the rotating frame 21 can make the spraying more uniform and extensive. After a period of reaction, a certain amount of reaction solution can be added into the inside of the stirring tank 2, and the pressurizing pump 13 can be started to inject the gas generated after the reaction of the injected steam and the toxic substances in the soil into the inside of the stirring tank 2 through the delivery pipe 23 and the one-way valve 24, so that the generated gas can be recovered and purified in the reaction solution.

[0038] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An injection oxidation device for the remediation of contaminated soil comprising a base plate (1), characterised in that: The top of the bottom plate (1) is provided with a stirring assembly for mixing, the right side of the top of the bottom plate (1) is provided with a suction pump (7), the output end of the suction pump (7) is fixedly connected with a heating box (8), the left side of the heating box (8) is fixedly connected with a conveying module (9), the left side of the conveying module (9) is fixedly connected with a mixing box (10), the front side of the bottom of the bottom plate (1) is fixedly connected with a shell (12), the inside of the shell (12) is provided with a pressure pump (13), the input end of the pressure pump (13) is fixedly connected with a three-way valve (14), the output end of the pressure pump (13) is fixedly connected with a telescopic pipe (15), the bottom of the telescopic pipe (15) is fixedly connected with a limiting ring (16), the outside of the limiting ring (16) is rotatably connected with a rotating frame (21), the inside of the rotating frame (21) is fixedly connected with a fixing frame (17), the top of the fixing frame (17) is fixedly connected with a connecting rod (18), the outside of the connecting rod (18) is fixedly connected with a plurality of fan blades (19), the top of the connecting rod (18) is fixedly connected with a fixed plate (20), the outside of the rotating frame (21) is fixedly connected with a plurality of spray heads (22).

2. The injection type oxidation apparatus for remediation of contaminated soil according to claim 1, characterized by: The stirring assembly comprises a stirring tank (2), the bottom of the stirring tank (2) is fixedly connected to the right side of the top of the bottom plate (1), the top of the stirring tank (2) is provided with a motor (3), the output end of the motor (3) is fixedly connected with a drive shaft (4), the outside of the drive shaft (4) is fixedly connected with a plurality of stirring blades (5), the top of the stirring tank (2) is fixedly connected with a feeding pipe (6).

3. An injection type oxidation apparatus for remediation of contaminated soil according to claim 2, characterized in that: The output end of the three-way valve (14) is fixedly connected with a conveying pipe (23), the outside of the conveying pipe (23) is fixedly connected with a one-way valve (24), the front side of the heating box (8) is fixedly connected with a heater (25), the rear side of the heater (25) is provided with a plurality of heating rods (26), the left side of the mixing box (10) is fixedly connected with an output pipe (902), the outside of the output pipe (902) is fixedly connected with a heat preservation pipe (901), the rear side of the top of the bottom plate (1) is fixedly connected with an air pump (27).

4. The injection type oxidation apparatus for the remediation of contaminated soil according to claim 3, characterized by: The output end of the air pump (27) is fixedly connected in the inside of the mixing box (10), the input end of the air pump (27) can inject oxidizing gas.

5. The injection type oxidation apparatus for the remediation of contaminated soil according to claim 3, characterized by: The outside of the drive shaft (4) is rotatably connected in the inside of the stirring tank (2), the top of the conveying pipe (23) is fixedly connected in the inside of the stirring tank (2).

6. The injection type oxidation apparatus for remediation of contaminated soil according to claim 1, wherein: The left side of the top of the bottom plate (1) is provided with a conveying pump (11), the right side of the top of the bottom plate (1) is fixedly connected with a push rod (28), the bottom of the bottom plate (1) is fixedly connected with a mobile wheel (29).

7. An injection oxidation apparatus for remediation of contaminated soil according to claim 6, characterized in that: The input end of the conveying pump (11) is fixedly connected in the inside of the mixing box (10), the output end of the conveying pump (11) is fixedly connected to the input end of the three-way valve (14).

8. The injection type oxidation apparatus for the remediation of contaminated soil according to claim 1, characterized by: The input end of the suction pump (7) is fixedly connected in the inside of the stirring tank (2), the output end of the suction pump (7) is fixedly connected in the inside of the heating box (8).

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