A soil remediation agent spraying device

Abstract

This utility model provides a soil remediation agent spraying device, belonging to the field of soil remediation technology. The soil remediation agent spraying device includes a main spraying pipe and several spraying execution components integrally formed at equal intervals at the bottom end of the main spraying pipe. Its key feature is that a detachable component is seamlessly welded to the top of the main spraying pipe. The detachable component houses a sieve component and a stirring component, and a switch component is welded to its top. The outer wall of the sieve component is fitted to the inner wall of the detachable component. The fixed end of the stirring component is welded to the inner wall of the detachable component and located on top of the sieve component. By having the switch component controlling the flow rate of the soil remediation agent work in conjunction with the detachable component, the sieve component, and the stirring component, the problem of nozzle clogging easily during use in existing soil remediation agent spraying devices can be effectively solved.

Description

Technical Field

[0001] This application relates to the field of soil remediation technology, and more specifically, to a soil remediation agent spraying device for soil remediation. Background Technology

[0002] Soil pollution is one of the most significant environmental problems facing the world, seriously threatening ecological security and human health. Soil remediation technology, as a key means of treating polluted soil, has been widely applied. Among them, chemical leaching / oxidative remediation involves spraying or injecting specialized remediation agents (such as chemical oxidants, leaching solutions, chelating agents, etc.) into the polluted soil. The physicochemical reaction between the remediation agent and the pollutants separates, degrades, or immobilizes the pollutants from the soil, thereby achieving soil purification.

[0003] In this process, the uniform and efficient spraying of the remediation agent is the core element in ensuring the remediation effect and efficiency. Therefore, the performance of the soil remediation agent spraying device, as the key equipment directly performing the spraying operation, is crucial. Existing spraying devices typically include a storage tank, delivery pipelines, a pressure pump, and multiple nozzles. During operation, the pressure pump delivers the remediation agent from the storage tank to the nozzles through the pipelines, forming droplets with a certain pressure and atomization effect, which are then sprayed onto the target contaminated area. However, in practical applications, a prominent technical problem commonly found in existing soil remediation agent spraying devices is that the nozzles are prone to clogging. Utility Model Content

[0004] To overcome the above deficiencies, this application provides a soil remediation agent spraying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A soil remediation agent spraying device includes a main spraying pipeline for remediation agent and a plurality of spraying execution components integrally formed at equal intervals at the bottom end of the main spraying pipeline. The device is characterized in that: a detachable component is seamlessly welded to the top of the main spraying pipeline; the detachable component contains a screening component and a stirring component, and a switch component is welded to its top; the outer wall of the screening component is fitted to the inner wall of the detachable component; and the fixed end of the stirring component is welded to the inner wall of the detachable component and located on top of the screening component.

[0007] Furthermore, the detachable component includes a flange cylinder, a flange cap, a service port, a sealing door, a sealing gasket, several holes, several threaded holes, and several hexagonal screws. The bottom end of the flange cylinder is inwardly curved and seamlessly welded to the top end of the main pipeline for spraying the repair agent. The service port is provided on the side wall. The bottom end of the flange cap is connected to the flange at the top of the flange cylinder, and the top end is welded to the output end of the switch assembly. Several threaded holes are provided on the outer side wall of the flange cylinder. The sealing gasket is hot-pressed onto the inner side wall of the sealing door, and several holes are provided on the outer wall. The side wall of the sealing gasket fits against the inner wall of the service port. The threaded ends of several hexagonal screws are respectively threadedly connected to the inner walls of several threaded holes through the interior of several holes.

[0008] Furthermore, the screening assembly includes a support mesh disk, a support column, a separator mesh, and a filter element. The surface of the support mesh disk is welded to the bottom end of the support column and placed inside the flange cylinder through the maintenance port. The separator mesh and the filter element are sequentially fitted onto the outer wall of the support column, and the outer wall is in contact with the inner wall of the flange cylinder.

[0009] Furthermore, the stirring assembly includes a column, a hinge joint, and two stirring blades. One end of the column is welded to the inner wall of the flange cylinder, and the other end is hinged to the hinge joint. The opposite ends of the two stirring blades are integrally formed with the outer walls of the hinge joint.

[0010] Furthermore, the switching assembly includes an infusion tube and a valve, with one end of the infusion tube welded to the top of the flange cap and the other end fitted with the valve.

[0011] Furthermore, the spraying execution component includes a branch pipe and several nozzles. The top end of the branch pipe is welded to the bottom end of the main pipeline for spraying the repair agent, and several nozzles are installed at equal intervals at the bottom.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model filters the repair agent entering the main pipeline by installing an integrated screening component at the top of the main pipeline. The support mesh, isolation mesh, and filter element can not only intercept larger particulate impurities, but also efficiently remove fine suspended matter, undissolved solids, and any possible flocculants, ensuring the purity of the repair agent entering the spraying pipeline from the source. This greatly reduces the risk of nozzle clogging and ensures the continuity and stability of the spraying operation.

[0014] 2. When the repair agent of this invention is left to stand or flows at low speed, it is prone to sedimentation and clogging of the filtration system. Another innovation of this device is the addition of a stirring component at the top of the sieve assembly. During operation, the repair agent solution is continuously supplied to the flange cylinder through a delivery pipe welded to the top of the flange cap. The repair agent solution continuously flushes the hinge joint, causing the two stirring blades to dynamically stir the repair agent solution above the filter element. This effectively prevents impurities from settling on the surface of the filter element, avoiding rapid clogging, extending the service life of the filter assembly, and ensuring a long-lasting and stable filtration effect.

[0015] 3. This utility model utilizes a flange connection design with a detachable component, featuring a flange cylinder and a flange cap, along with a sealing door equipped with a gasket and hexagonal screws. This makes the maintenance and replacement of the screening and mixing components extremely convenient. Workers do not need to disassemble the entire main pipeline; they can simply open the sealing door to quickly extract the internal screening components for cleaning or replacement. This significantly reduces equipment downtime for maintenance, lowers labor intensity, and reduces maintenance costs.

[0016] 4. Through the aforementioned multiple measures, this invention ensures that each nozzle receives a stable and sufficient flow rate and pressure, thereby guaranteeing that the remediation agent can be sprayed onto the target contaminated area with a uniform atomization effect. This avoids uneven spraying caused by partial nozzle blockage, ensures full contact between the remediation agent and the pollutants, and significantly improves the overall efficiency and final effect of soil remediation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the soil remediation agent spraying device provided in the embodiments of this application;

[0019] Figure 2 A schematic diagram of the disassembly structure of the switch assembly provided in the embodiments of this application;

[0020] Figure 3 A schematic diagram of the internal structure of the flange cylinder provided for an embodiment of this application;

[0021] Figure 4 A schematic diagram of the sealing door disassembly structure provided for an embodiment of this application;

[0022] Figure 5 A schematic diagram of a sealing door structure provided for an embodiment of this application;

[0023] Figure 6 This is an exploded view of the screening component provided in an embodiment of this application;

[0024] Figure 7 A schematic diagram of the connection structure between the switch assembly and the flange cap provided in the embodiments of this application.

[0025] In the diagram: 1-Main pipeline for spraying repair agent; 2-Spraying execution component; 3-Removable component; 4-Screwing component; 5-Agitating component; 6-Switch component; 21-Branch pipe; 22-Sprayer head; 31-Flange; 32-Flange cap; 33-Maintenance port; 34-Sealing door; 35-Sealing gasket; 36-Hole; 37-Threaded hole; 38-Hexagonal screw; 41-Support mesh tray; 42-Support column; 43-Isolation mesh; 44-Filter element; 51-Column rod; 52-Hinged joint; 53-Agitator blade; 61-Infusion pipe; 62-Valve. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0027] Example:

[0028] Please see Figure 1 , Figure 2 A soil remediation agent spraying device includes a main remediation agent spraying pipe 1 and several spraying execution components 2 integrally formed at equal intervals at the bottom end of the main remediation agent spraying pipe 1; the spraying execution components 2 include branch pipes 21 and several nozzles 22.

[0029] The main pipeline 1 for spraying the repair agent serves as the core water supply channel for the entire device, and its main body is a stainless steel pipe. At the bottom of this pipeline, several spraying actuators 2 are welded at equal intervals using a one-piece molding manufacturing process. At the top of the main pipeline 1, a detachable component 3 is securely connected via seamless welding, ensuring a leak-free connection. Several branch pipes 21 are welded at equal intervals at the bottom of the main pipeline 1, enabling the repair agent to be evenly delivered into the branch pipes 21.

[0030] The spraying execution assembly 2 is the final output end of the remediation agent. Each spraying execution assembly 2 includes a branch pipe 21 and several nozzles 22 installed at the bottom of the branch pipe 21. These nozzles 22 have an orifice diameter of 1.5mm, which atomizes the remediation agent into fine droplets to increase the contact area with the soil and improve remediation efficiency. The branch pipe 21 is made of high-strength material, and its top end is tightly welded to the reserved port at the bottom of the main remediation agent spraying pipe 1, forming a stable and sealed fluid passage. The nozzles 22 are fan-shaped, which can produce a fan-shaped spray coverage area, making them particularly suitable for spraying large areas of low-height soil surfaces. The top of the nozzle 22 is threaded to the reserved threaded cap at the bottom of the branch pipe 21, facilitating nozzle installation and improving operational efficiency.

[0031] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 A soil remediation agent spraying device includes a main spraying pipeline 1 with a detachable component 3 seamlessly welded to its top. The detachable component 3 contains a sieve component 4 and a stirring component 5, and a switch component 6 is welded to its top. The outer wall of the sieve component 4 is attached to the inner wall of the detachable component 3. The fixed end of the stirring component 5 is welded to the inner wall of the detachable component 3 and is located on top of the sieve component 4. The detachable component 3 includes a flange cylinder 31, a flange cap 32, a maintenance port 33, a sealing door 34, a sealing gasket 35, several holes 36, several threaded holes 37, and several hexagonal screws 38. The sieve component 4 includes a support mesh plate 41, a support column 42, an isolation mesh 43, and a filter element 44. The stirring component 5 includes a column rod 51, a hinge joint 52, and two stirring blades 53. The switch component 6 includes an infusion pipe 61 and a valve 62.

[0032] The detachable component 3 is the "pretreatment core unit" of the entire soil remediation agent spraying device. It integrates the remediation agent inlet, filtration, mixing, switching, and key maintenance and repair functions. Its core design concept lies in encapsulating the vulnerable screening component 4 and the regularly maintained mixing component 5 within a single independent module through a modular and detachable structure, thereby greatly improving the device's maintenance convenience, operational efficiency, and reliability. The flange cylinder 31 serves as the main outer shell of the entire component and is precision cast or machined from thickened 304 stainless steel to ensure its pressure resistance and structural strength. Its bottom end is designed with an inwardly curved structure, seamlessly welded to the top of the main remediation agent spraying pipe 1, forming a smooth, dead-angle-free fluid transition zone, which facilitates the smooth flow of the remediation agent and reduces eddies and sedimentation. The flange cylinder 31 houses the screening component 4 and the mixing component 5. A maintenance port 33 is provided on its side wall, which is the only channel for internal component maintenance. The flange cap 32 is also made of 304 stainless steel, with flange holes machined on its bottom edge to match the top of the flange cylinder 31. A ring of bolts tightly connects the flange cylinder 31, forming an encapsulation and seal for the internal components. The flange cap 32 provides a mounting base for the switch assembly 6, and its top is seamlessly welded to the infusion tube 61 of the switch assembly 6, forming the inlet for the repair agent entry device. The sealing door 34 is a metal plate larger than the service port 33, typically made of stainless steel. Its inner wall is laminated with a layer of highly elastic, chemically resistant fluororubber gasket 35 using a hot-pressing process. The thickness and hardness of the gasket 35 are precisely designed to ensure a tight fit against the inner wall of the service port 33 after tightening, achieving a "zero-leakage" seal and forming a closed pressure environment. On the outer wall of the flange cylinder 31, several threaded holes 37 are evenly distributed around the service port 33. On the outer wall of the sealing door 34, holes 36 are provided, corresponding one-to-one in number and position to the threaded holes 37. The hexagonal screws 38 are made of high-strength stainless steel standard parts, with their screw ends passing through the holes 36 on the sealing door 34 and screwed into the threaded holes 37 on the flange cylinder 31. By tightening all the hexagonal screws 38, the sealing door 34 is firmly pressed onto the flange cylinder 31, thereby compressing the sealing gasket 35 and forming a reliable seal. Maintenance procedure: Step 1: Close valve 62 of the switch assembly 6 to cut off the supply of the repair agent and ensure that the internal pressure of the device has been completely released. Step 2: Using tools, loosen and unscrew the hexagonal screws 38 one by one in a diagonal sequence to remove the sealing door 34. Step 3: With the maintenance port 33 fully open, the operator can easily reach in and pull out the entire screen assembly 4 for flushing, replacement, or inspection of the operating condition of the mixing assembly 5. Step 4: After maintenance, reset the sealing door 34, ensuring that the sealing gasket 35 is fully embedded in the edge of the maintenance port 33. Then, again use a wrench to tighten all the hexagonal screws 38 in a diagonal sequence to ensure even force and optimal sealing effect.

[0033] The filter assembly 4 is the core filtration unit located inside the detachable assembly 3, serving as the last line of defense before the repair agent enters the main spraying pipeline 1. Its main function is to finely filter the repair agent, effectively intercepting solid impurities, incompletely dissolved particles, and precipitates that may form due to chemical reactions. This fundamentally prevents clogging of the nozzles 22 in the downstream spraying execution assembly 2, ensuring the continuity and stability of the spraying process. The support mesh tray 41 is made of high-strength, corrosion-resistant 304 stainless steel, manufactured through laser cutting or stamping. It is a disc with a diameter slightly smaller than the inner diameter of the flange cylinder 31, with evenly distributed diamond or circular mesh holes on its surface. As the base and frame of the entire filter assembly 4, the support mesh tray 41 primarily supports the weight of all upper filter elements. The support column 42 is vertically welded to the upper surface of the support mesh tray 41, and its height is designed to ensure that the isolation mesh 43 and filter element 44 can be stably fixed in the middle position of the flange cylinder 31. The isolation mesh 43 and filter element 44 are suspended and fixed inside the flange cylinder 31, forming an annular filtration channel. After the repair agent enters the assembly from all sides, it must first pass through the filter layer before converging from above the support mesh plate 41 and flowing into the main repair agent spraying pipe 1. This design effectively increases the filtration area. Work process: When the repair agent, driven by the pump, enters the flange cylinder 31 through the switch assembly 6 and flange cap 32, the fluid first impacts and fills the entire chamber. Subsequently, the repair agent begins to pass through the screening assembly 4 layer by layer: the repair agent flows sequentially through the filter element 44, isolation mesh 43, and support mesh plate 41, so that small particles and flocculent matter are thoroughly removed. The clean repair agent then flows into the main repair agent spraying pipe 1 and is finally sprayed out through the spraying execution assembly 2.

[0034] The stirring assembly 5, located inside the detachable assembly 3, is another core functional unit that works in conjunction with the screening assembly 4 to ensure the quality of the remedial agent. Its main function is to provide real-time, dynamic stirring of the remedial agent entering the device. This not only helps prevent sedimentation and stratification of the remedial agent during transportation and storage, ensuring its concentration uniformity, but also effectively breaks up any small clumps or flocs that may form in the remedial agent, preventing them from rapidly accumulating on the surface of the screening assembly 4, thereby extending the service life of the screening assembly 4 and maintaining its filtration efficiency. The column 51 is made of high-strength, corrosion-resistant 304 stainless steel round steel. One end is firmly welded to the inner wall of the flange cylinder 31 using processes such as argon arc welding, and its position is fixed directly above the screening assembly 4. This installation method provides a stable support point for the entire stirring assembly 5. The hinge joint 52 is a precision-machined metal connector with a central bearing, typically made of stainless steel or a higher-strength alloy. It is firmly press-fitted to the free end of the column 51. The hinge joint 52 is the "joint" that enables the stirring assembly 5 to operate efficiently. It allows the two agitator blades 53 to rotate freely 360 degrees around the axis of the column 51. This design is crucial, as it enables the agitator blades 53 to generate strong centrifugal and shear forces during rotation, thereby more effectively breaking up clumps in the fluid. The two agitator blades 53 are manufactured from the same piece of corrosion-resistant stainless steel sheet using a one-piece stamping or bending process, and then welded to both sides of the hinge joint 52. Workflow: The repair agent liquid is flushed onto the hinge joint 52 through the infusion pipe 61 of the switch assembly 6 and the flange cap 32, which drives the two symmetrical agitator blades 53 to rotate at high speed. The rotating agitator blades 53 form a dynamic vortex field within the flange cylinder 31, which strongly agitates and breaks up the incoming repair agent, ensuring its uniform dispersion. Subsequently, under pressure, the clean and uniform repair agent passes through the screening assembly 4 and enters the repair agent spraying main pipe 1, where it is sprayed using the spraying execution assembly 2.

[0035] Among them, the switch assembly 6 is the "master control switch" of the entire soil remediation agent spraying device, and a key hub connecting external delivery equipment such as pumps and storage tanks to the device itself. Its main functions are to control the on / off state of the remediation agent, regulate the flow rate, and achieve rapid start-up and shutdown, ensuring that the entire spraying operation can be carried out safely and controllably. The design of this assembly strives for simplicity, ease of operation, and reliable sealing, serving as the first line of defense for achieving precise spraying and safe maintenance operations.

[0036] The infusion tube 61 is made of a precision-machined, uniformly thick 304 stainless steel seamless pipe. One end is seamlessly welded to the center of the flange cap 32 using TIG welding. This welding method ensures the strength and airtightness of the connection, can withstand high working pressure, and effectively prevents leakage of the repair agent at the connection. As the "main inlet" for the repair agent, the infusion tube 61 provides a stable and unobstructed channel for the repair agent to flow from external equipment into the device. Its diameter is selected according to the device's design flow rate to ensure minimal pressure loss during fluid flow. Valve 62 is installed at the other end of the infusion tube 61. Valve 62 is the core actuator of the switching assembly 6, mainly used to regulate and control the flow rate of the repair agent liquid. Work process: Securely connect the external hose or pipe for delivering the repair agent to the inlet end of valve 62. Before starting work, fully open valve 62 to ensure the passage is clear. The external pump is started, and the repair agent flows into the removable component 3 through the infusion tube 61, and continues to flow downward into the flange cylinder 31 for agitation and filtration. During the operation, the flow rate can be controlled or the repair agent supply can be shut off in an emergency by operating the valve handle. At the end of the operation, the handle is rotated to a position perpendicular to the pipeline axis, the valve is fully closed, and the liquid supply is stopped.

[0037] It should be noted that the specific models and specifications of the nozzle 22, filter element 44, and valve 62 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0038] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A soil remediation agent spraying device, comprising a main remediation agent spraying pipe (1) and a plurality of spraying execution components (2) integrally formed at equal intervals at the bottom end of the main remediation agent spraying pipe (1), characterized in that: The top of the main pipeline (1) for spraying the repair agent is seamlessly welded with a detachable component (3). The detachable component (3) is equipped with a sieve component (4) and a stirring component (5) inside, and a switch component (6) is welded to the top. The outer wall of the sieve component (4) is attached to the inner wall of the detachable component (3). The fixed end of the stirring component (5) is welded to the inner wall of the detachable component (3) and is located on top of the sieve component (4).

2. The soil remediation agent spraying device according to claim 1, characterized in that, The detachable component (3) includes a flange cylinder (31), a flange cap (32), a maintenance port (33), a sealing door (34), a sealing gasket (35), several holes (36), several threaded holes (37), and several hexagonal screws (38). The bottom end of the flange cylinder (31) is inwardly curved and seamlessly welded to the top end of the main pipeline (1) for spraying the repair agent. The maintenance port (33) is provided on the side wall. The bottom end of the flange cap (32) is connected to the flange at the top end of the flange cylinder (31). The flange cylinder (31) is connected to the output end of the switch assembly (6) and the top end is welded to the output end of the switch assembly (6). The outer wall of the flange cylinder (31) is provided with a plurality of threaded holes (37). The inner wall of the sealing door (34) is hot-pressed with the sealing gasket (35) and the outer wall is provided with a plurality of holes (36). The side wall of the sealing gasket (35) is fitted with the inner wall of the maintenance port (33). The threaded ends of a plurality of hexagonal screws (38) are respectively threadedly connected to the inner wall of a plurality of threaded holes (37) through the interior of a plurality of holes (36).

3. The soil remediation agent spraying device according to claim 2, characterized in that, The filtration assembly (4) includes a support mesh disk (41), a support column (42), an isolation mesh (43), and a filter element (44). The surface of the support mesh disk (41) is welded to the bottom end of the support column (42) and placed inside the flange cylinder (31) through the maintenance port (33). The isolation mesh (43) and the filter element (44) are sequentially fitted onto the outer wall of the support column (42), and the outer wall is in contact with the inner wall of the flange cylinder (31).

4. The soil remediation agent spraying device according to claim 3, characterized in that, The stirring assembly (5) includes a rod (51), a hinge joint (52) and two stirring blades (53). One end of the rod (51) is welded to the inner wall of the flange cylinder (31), and the other end is hinged to the hinge joint (52). The opposite ends of the two stirring blades (53) are integrally formed with the outer walls of the hinge joint (52).

5. A soil remediation agent spraying device according to claim 4, characterized in that, The switching assembly (6) includes an infusion tube (61) and a valve (62). One end of the infusion tube (61) is welded to the top of the flange cap (32), and the other end is equipped with the valve (62).

6. A soil remediation agent spraying device according to claim 5, characterized in that, The spraying execution component (2) includes a branch pipe (21) and a number of nozzles (22). The top end of the branch pipe (21) is welded to the bottom end of the main pipeline (1) for spraying the repair agent, and a number of nozzles (22) are installed at equal intervals at the bottom.

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