Shield contaminated soil disposal device and use method thereof

Abstract

The present invention provides a shield-turbine contaminated soil disposal device and its use method, comprising: a stirring shell, a drive shaft, and a grinding member interlockingly sleeved on the drive shaft, the grinding member dividing the interior of the stirring shell into a grinding chamber and a stirring chamber, respectively, located vertically. The drive shaft sidewall is penetrated by a plurality of pump holes corresponding to the grinding chambers; a stirring assembly disposed within the stirring chamber, the stirring assembly comprising a stirring member interlockedly sleeved on the drive shaft, and a linkage assembly connecting the grinding member and the stirring member. The stirring member and the drive shaft are sequentially connected to form a pump channel connecting the stirring chamber and the pump holes. A first-stage one-way valve is provided within the stirring member, and a second-stage one-way valve is provided within the drive shaft below the pump hole. The first-stage one-way valve and the second-stage one-way valve divide the pump channel from bottom to top into a first pumping zone, a second pumping zone, and a third pumping zone. This device can improve the dissolution efficiency of solid drugs and prevent incorrect drug ratios that affect drug efficacy.

Description

Technical Field

[0001] The present invention relates to the field of shield contaminated soil disposal devices, and in particular to a shield contaminated soil disposal device and a method for using the same. Background Art

[0002] Shield contaminated soil is the fluidized slag produced by shield machines during the excavation process of subways, tunnels, etc. Shield contaminated soil contains foaming agents and high molecular polymers. If it enters the disposal site without environmental protection treatment, the foaming agents it contains will have adverse effects on the microorganisms in the water once they enter the water body. In addition, since shield contaminated soil contains surfactants and has high fluidity, if it is directly used for mine filling or large-scale accumulation, it may cause potential geological hazards. Therefore, for the treatment of shield contaminated soil, it is necessary to mix special treatment drugs with water and spray them into the shield contaminated soil to control the pollutants.

[0003] Currently, there is a prior application with application number CN113548785A, entitled A treatment system for shield tunneling mud and its separation method. The system adds PAM agent into a three-chamber dosing unit for dissolution and stirring, and then fully mixes and reacts the PAM agent with the shield tunneling contaminated soil slurry in a centrifugal device.

[0004] However, the above-mentioned prior application only uses a stirring blade to simply stir the agent and then mix it with the muddy shield contaminated soil for reaction. The agents used for the treatment of shield contaminated soil include not only powdered and liquid drugs, but also granular and block drugs (such as calcium chloride, which can be used to improve soil fertility and as a soil solidifier). Therefore, simple stirring treatment cannot make the granular or block solid drugs fully compatible with the liquid drug, which leads to uneven mixing of the prepared agent and the shield contaminated soil, reduced treatment effect of the agent on the shield contaminated soil, and increased cost of shield contaminated soil treatment.

[0005] The purpose of this invention is to design a shield contaminated soil disposal device and a method for using the same in order to address the problems existing in the above-mentioned prior art. Summary of the Invention

[0006] The present invention provides a shield contaminated soil disposal device and a method of using the same, which can effectively solve the above problems.

[0007] The present invention is achieved in that:

[0008] A shield contaminated soil disposal device includes: a mixing mechanism and a liquid discharge mechanism, wherein the mixing mechanism includes:

[0009] A stirring shell is provided with a driving shaft driven by a rotary drive device to rotate forward or reverse, and a grinding piece sleeved on the driving shaft. A gap is set between the circumferential side wall of the grinding piece and the inner wall of the stirring shell to form a grinding gap and divide the interior of the stirring shell into a grinding chamber and a stirring chamber distributed vertically. The side wall of the driving shaft is penetrated by a plurality of pump holes corresponding to the grinding chamber. The side wall of the stirring shell is penetrated by a feed port and a discharge port respectively connected to the grinding chamber and the stirring chamber, and the discharge port is connected to the liquid discharge mechanism.

[0010] The stirring assembly is arranged in the stirring chamber, and the stirring assembly includes a stirring member that is linked and sleeved with the drive shaft, and a linkage assembly that connects the grinding member and the stirring member. The stirring member and the drive shaft are sequentially connected to form a pumping channel connecting the stirring chamber and the pumping hole. A first-level one-way valve member is provided in the stirring member, and a second-level one-way valve member is provided in the drive shaft below the pumping hole. The first-level one-way valve member and the second-level one-way valve member divide the pumping channel from bottom to top into a first pumping area, a second pumping area, and a third pumping area. When the grinding member is driven by the drive shaft to rotate forward or reverse, the stirring member is driven to descend or ascend through the linkage assembly. When the stirring member descends, the negative pressure of the second pumping area opens the first-level one-way valve member and sucks the liquid in the stirring chamber through the first pumping area. When the stirring member rises, the second pumping area is pressurized to open the second-level one-way valve member and squeeze the sucked liquid upward to the third pumping area and spray it out from the top of the grinding member through several pumping holes.

[0011] Furthermore, the grinding member is configured to be in the shape of a cover with an opening facing downward and the top is configured to be a guide portion with a height gradually decreasing from the center to the periphery, the outer edge of the guide portion extends downward to form a grinding portion with a gap with the inner wall of the stirring shell to form the grinding gap, the stirring member includes a stirring shaft that is linked to the drive shaft and several layers of stirring rods that are connected to the side wall of the stirring shaft and extend outward from top to bottom, the stirring rods of the bottom layer are connected to the stirring shaft and the drive shaft in sequence to form a pump liquid channel connecting the stirring chamber and the pump liquid hole.

[0012] Furthermore, the linkage assembly includes a gear ring whose side wall is connected to the grinding part, a number of linkage gears arranged on the inner side of the gear ring and meshing with the internal teeth of the gear ring, a number of screws whose lower ends are respectively rotatably connected to the bottom wall of the stirring chamber and whose upper ends are respectively connected to a number of the linkage gears, and a lifting member whose upper and lower limit sleeves are connected to the stirring shaft and whose ends are respectively threaded and sleeved on the outer walls of the number of the screws; when the grinding part rotates forward or reverse, it drives the gear ring to rotate forward or reverse, thereby driving the number of the linkage gears and screws to rotate forward or reverse, and then drives the lifting member to descend or ascend, and then drives the stirring shaft to descend or ascend.

[0013] Furthermore, the first-level one-way valve component and the second-level one-way valve component have the same structure, and the first-level one-way valve component includes a sealing ring laterally spaced in the stirring shaft, a sealing plug provided at the top of the sealing ring and blocking the inner ring opening of the sealing ring, and a plurality of springs connected between the sealing plug and the top of the sealing ring; when the stirring shaft descends, the second pump liquid area is under negative pressure, and the sealing plug of the first-level one-way valve component is pushed up and separated from the inner ring opening of the sealing ring by the pressure difference between the second pump liquid area and the first pump liquid area; when the stirring shaft rises, the second pump liquid area is pressurized, and the sealing plug of the second-level one-way valve is pushed up and separated from the inner ring opening of the sealing ring by the pressure difference between the second pump liquid area and the third pump liquid area.

[0014] Furthermore, the upper end of the stirring shaft is sleeved on the outer wall of the lower end of the driving shaft, and a limiting groove and a limiting ridge are respectively provided between the inner wall of the stirring shaft and the outer wall of the driving shaft, which are embedded in each other and slide relatively up and down. The upper end of the limiting groove is closed to limit the limiting ridge from sliding up and detaching.

[0015] Furthermore, several of the pump liquid holes are located on the side wall of the upper end of the drive shaft, the rotary drive device is arranged in the middle of the top of the stirring shell and the drive end is provided with a fixed ring connected to the upper end of the drive shaft, and several reinforcing rods arranged in an annular manner are connected between the fixed ring and the middle of the guide part.

[0016] Furthermore, the outer ends of several of the pump holes are slender and their lengths extend circumferentially along the drive shaft. The inner diameter of the pump holes gradually decreases from the inner end to the outer end and the inner end is higher than the outer end. The liquid is sprayed out through several of the pump holes in a blade-like shape that is inclined downward and outward.

[0017] Furthermore, several of the pump liquid holes are located on the side wall of the upper end of the drive shaft, the rotary drive device is arranged in the middle of the top of the stirring shell and the driving end is provided with a fixed ring connected to the upper end of the drive shaft, and several annularly spaced reinforcements are connected between the fixed ring and the middle of the guide part. Several of the reinforcements are spirally arranged from top to bottom along the reverse direction of the drive shaft, and several of the reinforcements are recessed on one side close to the drive shaft to provide a guide groove, and the lower end of the guide groove is provided with a guide port on the side close to the spiral direction of the reinforcement; several of the guide grooves are used to receive the liquid sprayed out of several of the pump liquid holes in a blade-like shape and then accelerate it spirally downward.

[0018] Furthermore, it also includes a conveying mechanism, which includes a conveyor belt driven by a conveying drive device and used to convey shield contaminated soil, the liquid discharge mechanism includes a spray shell arranged above the conveyor belt, a drainage pipe connecting the interior of the spray shell and the discharge port, a water pump device is provided in the drainage pipe, the spray shell is hollow and has a plurality of spray holes corresponding to the top of the conveyor belt, the bottom of the spray shell is rotatably penetrated by a plurality of stirring columns extending vertically and arranged laterally at intervals, a plurality of stirring gears are rotatably provided in the spray shell, which are respectively sleeved on the stirring columns and meshed in sequence, the lower ends of the plurality of stirring columns extend downward to the conveyor belt and are each fixed with a plurality of outwardly extending disturbance rods, and a turbine corresponding to the discharge port of the drainage pipe is sleeved on the stirring column near the drainage pipe; the liquid entering the drainage pipe impacts the turbine and drives the plurality of stirring gears and stirring columns to rotate, thereby driving the plurality of disturbance rods to rotate.

[0019] The method for using the shield contaminated soil disposal device as described above comprises the following steps:

[0020] S1, a medicine including a liquid medicine and a solid medicine is fed into the grinding chamber through the feed port, and the rotary drive device drives the drive shaft to rotate forward or reverse, thereby driving the grinding member to rotate forward or reverse. The grinding member drives the stirring member to descend or ascend through the linkage assembly. The liquid medicine falls into the stirring chamber through the grinding gap under the action of gravity, and the solid medicine falls into the stirring chamber after being ground in the grinding gap;

[0021] In step S2, the liquid medicine and the solid medicine fall into the stirring chamber and are stirred and mixed by the stirring element rotating and rising and falling to form a liquid medicine. When the stirring element descends, the negative pressure of the second pumping area opens the first-level one-way valve and sucks the liquid medicine in the stirring chamber through the first pumping area. When the stirring element rises, the second pumping area increases the pressure and opens the second-level one-way valve to squeeze the sucked liquid medicine upward to the third pumping area and spray it out from the top of the grinding element through a plurality of pumping holes to wash away the solid medicine remaining on the top of the grinding element.

[0022] S3, after the stirring element rotates and rises and falls to stir and mix, the discharge port is opened to discharge the liquid agent into the shield contaminated soil through the liquid discharge mechanism.

[0023] The beneficial effects of the present invention are:

[0024] 1. While the grinding element is rotating forward or reversely for grinding, the linkage assembly drives the stirring assembly to descend or ascend for stirring, thereby improving the efficiency of the stirring assembly in stirring and mixing fine granular solid medicine and liquid medicine in the stirring chamber; and, by adding a pump liquid channel, a primary one-way valve component, and a secondary one-way valve component, when the stirring element descends, the negative pressure of the second pump liquid area opens the primary one-way valve component and sucks the liquid in the stirring chamber through the first pump liquid area. When the stirring element rises, the second pump liquid area is pressurized and opens the secondary one-way valve component and squeezes the sucked liquid upward to the third pump liquid area and sprays it out of the top of the grinding element through a number of pump liquid holes, thereby flushing the solid medicine remaining on the top of the grinding element into the grinding gap. , which can avoid excessive residue of solid drugs that cannot fall, improve the adequacy of solid drug dissolution, avoid the influence of wrong drug ratio on drug efficacy, and increase the speed of solid drugs entering the grinding gap, and dissolve part of solid drugs during the flushing process, thereby improving the grinding efficiency and dissolution efficiency of solid drugs. Moreover, in the process of flushing the top of the grinding element with the pumped liquid after several pump holes pump liquid, the stirring element descends to the second pumping area to re-absorb the liquid, so that the liquid absorbed by the second pumping area is the liquid in the lower part of the stirring chamber, avoiding the solid drugs that have just been ground in the grinding gap and falling down to be sucked by the second pumping area and then pumped back to the grinding chamber for repeated grinding, thereby ensuring the grinding and feeding efficiency and the stirring and mixing efficiency.

[0025] 2. By setting the guide part, the medicine entering the grinding chamber can be tilted downward and outwardly guided to the grinding gap. Driven by the flow of the medicine liquid brought by the medicine, the amount of solid medicine residue on the top of the grinding piece can be reduced. At the same time, the medicine pumped by the pump liquid channel through the plurality of pump liquid holes can be tilted downward and outwardly guided to the grinding gap, thereby increasing the flow rate of the pumped medicine liquid and improving its flushing effect on the solid medicine residual on the top of the grinding piece; and, by using the lowest stirring rod as the entrance of the pump liquid channel, it can be further ensured that the liquid re-absorbed by the second pump liquid area when the stirring shaft descends is the liquid in the lower part of the stirring chamber, further preventing the fallen solid medicine from being pumped back to the grinding chamber for repeated grinding, and can increase the hydraulic pressure of the first pump liquid area, thereby improving the pump liquid stability of the pump liquid channel.

[0026] 3. By setting the sealing plug, sealing ring and spring, and coordinating with the pressure change in the second pump liquid area when the stirring shaft is lifted up and down, one-way communication between the first pump liquid area and the second pump liquid area, and between the second pump liquid area and the third pump liquid area is achieved. The opening and closing of the first-level one-way valve and the second-level one-way valve can be controlled without additional power, which reduces the pumping cost, simplifies subsequent cleaning and maintenance, and has low repair and replacement costs. In addition, the opening and closing of the sealing plug is closely linked with the lifting and lowering of the stirring shaft, with a low failure rate, which can improve the pumping efficiency and pumping stability of the pump liquid channel.

[0027] 4. By setting the outer end of the pump hole to be slender, and setting the pump hole to be larger at the inner end and smaller at the outer end, and higher at the inner end and lower at the outer end, the liquid pumped by the pump hole is pressurized and ejected in a downward and outward blade shape, thereby increasing the coverage area of ​​the liquid pumped by the pump hole, thereby increasing the flushing area and flushing speed of the guide part by the pumped liquid, improving the flushing effect, and reducing the probability of residual solid matter on the guide part. In addition, the design of higher inner end and lower outer end can further prevent the liquid medicine or solid medicine in the grinding chamber from splashing into the pump hole, and avoid clogging of the slender outer end pump hole.

[0028] 5. On the basis of improving the connection strength between the fixed ring and the grinding piece by setting up several reinforcement members to improve the stability of the grinding piece, by adding spiral guide grooves, the liquid sprayed from several pump holes is accelerated by the spiral of the guide groove and then rushed out through the guide port to spread and flush the guide part, further improving the coverage area and flow rate of the liquid pumped out by the several pump holes, and further improving the flushing area and flushing speed of the guide part by the pumped liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural diagram of Example 1.

[0030] Figure 2 It is a partial cross-sectional structural schematic diagram of the mixing mechanism of Example 1.

[0031] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0032] Figure 4 This is a partial structural diagram of the driving shaft and the stirring member with only the bottom stirring rod retained in Example 1.

[0033] Figure 5 This is a schematic diagram of the cross-sectional structure of the driving shaft and the stirring shaft of Example 1.

[0034] Figure 6 This is a schematic cross-sectional structural diagram of the spray shell of Example 1.

[0035] Figure 7 It is a partial cross-sectional structural diagram of the mixing mechanism of Example 2.

[0036] Figure 8 for Figure 7 A partial enlarged schematic diagram of point B in the middle.

[0037] Figure 9 This is a schematic diagram of the cross-sectional partial structure of the driving end, fixed ring, and driving shaft of Example 2.

[0038] Figure 10 This is a schematic structural diagram of several reinforcement members in Example 2.

[0039] Figure 11 Figure 10 Schematic diagram of the structure of the first reinforcement member. DETAILED DESCRIPTION

[0040] Example 1

[0041] Reference Figure 1-6 As shown, a shield contaminated soil disposal device includes: a mixing mechanism and a liquid discharge mechanism 8, wherein the mixing mechanism includes:

[0042] The stirring shell 1 is provided with a driving shaft 21 driven by the rotary driving device 2 to rotate forward or reverse, and a grinding piece 3 linked to the driving shaft 21. The circumferential side wall of the grinding piece 3 is provided with a gap between the inner wall of the stirring shell 1 to form a grinding gap and divide the interior of the stirring shell 1 into a grinding chamber 11 and a stirring chamber 12 distributed vertically. Specifically, the width of the grinding gap is about one millimeter. The side wall of the driving shaft 21 is penetrated by a plurality of pump holes 211 corresponding to the grinding chamber 11. The side wall of the stirring shell 1 is penetrated by a feed port 13 and a discharge port 14 respectively connecting the grinding chamber 11 and the stirring chamber 12. The discharge port 14 is connected to the liquid discharge mechanism 8. Specifically, a heating interlayer filled with a heating medium can be provided in the side wall of the stirring shell 1. The heating medium can be hot water, steam, etc., so as to heat the stirring shell 1, improve the dissolution efficiency of the solid medicine, and improve the grinding efficiency and stirring efficiency. The feed port 13 and the discharge port 14 are respectively controlled to open and close by corresponding valves.

[0043] The stirring assembly 4 is provided in the stirring chamber 12, and the stirring assembly 4 includes a stirring member that is linked to the drive shaft 21, and a linkage assembly 43 that connects the grinding member 3 and the stirring member. The stirring member and the drive shaft 21 are sequentially connected to form a pump liquid channel 5 connecting the stirring chamber 12 and the pump liquid hole 211. A first-level one-way valve member 6 is provided in the stirring member, and a second-level one-way valve member 7 is provided in the drive shaft 21 below the pump liquid hole 211. The first-level one-way valve member 6 and the second-level one-way valve member 7 separate the pump liquid channel 5 from bottom to top into a first pump liquid area 51 , the second pump liquid area 52, the third pump liquid area 53; when the grinding member 3 is driven by the driving shaft 21 to rotate forward or reverse, the stirring member is driven to descend or ascend through the linkage assembly 43. When the stirring member descends, the negative pressure of the second pump liquid area 52 opens the first-level one-way valve member 6 and sucks the liquid in the stirring chamber 12 through the first pump liquid area 51. When the stirring member rises, the second pump liquid area 52 increases the pressure to open the second-level one-way valve member 7 and squeezes the sucked liquid upward to the third pump liquid area 53 and sprays it out from the top of the grinding member 3 through several of the pump liquid holes 211.

[0044] The above-mentioned structure is set up, while the grinding member 3 is rotating forward or reversely grinding, the linkage component 43 drives the stirring component 4 to descend or ascend for stirring, thereby improving the efficiency of the stirring component 4 in stirring and mixing the fine granular solid medicine and the liquid medicine in the stirring chamber 12; and, by adding the pump liquid channel 5, the first-level one-way valve component 6, and the second-level one-way valve component 7, when the stirring member descends, the negative pressure of the second pump liquid area 52 opens the first-level one-way valve component 6 and sucks the liquid in the stirring chamber 12 through the first pump liquid area 51. When the stirring member rises, the second pump liquid area 52 increases the pressure to open the second-level one-way valve component 7 and squeezes the sucked liquid upward to the third pump liquid area 53 and sprays it out from the top of the grinding member 3 through the plurality of pump liquid holes 211, thereby removing the residual Flushing the solid medicine on the top of the grinding element 3 to the grinding gap can prevent the solid medicine from remaining excessively and being unable to fall, improve the adequacy of the dissolution of the solid medicine, avoid the effect of the medicine caused by incorrect drug ratio, and increase the speed of the solid medicine entering the grinding gap. Part of the solid medicine can be dissolved during the flushing process, thereby improving the grinding efficiency and dissolution efficiency of the solid medicine. Moreover, in the process of flushing the top of the grinding element 3 with the pumped liquid after several pump holes 211 pump liquid, the stirring element descends to the second pump liquid area 52 to re-absorb the liquid, so that the liquid absorbed by the second pump liquid area 52 is the liquid in the lower part of the stirring chamber 12, avoiding the solid medicine that has just fallen after being ground in the grinding gap from being sucked by the second pump liquid area 52 and then pumped back to the grinding chamber 11 for repeated grinding, thereby ensuring the grinding and feeding efficiency and the stirring and mixing efficiency.

[0045] In order to reduce the residual amount of solid medicine on the top of the grinding member 3, the grinding member 3 is configured to be a cover-shaped body with an opening facing downward and a top configured to be a guide portion 31 with a height gradually decreasing from the center to the periphery. The outer edge of the guide portion 31 extends downward to form a grinding portion 32 with a gap with the inner wall of the stirring shell 1 to form the grinding gap. The stirring member includes a stirring shaft 41 that is linked to the drive shaft 21 and several layers of stirring rods 42 that are connected to the side wall of the stirring shaft 41 and extend outward from top to bottom. The stirring rods 42 of the lowest layer are connected to the stirring shaft 41 and the drive shaft 21 in sequence to form a pump liquid channel 5 connecting the stirring chamber 12 and the pump liquid hole 211. Therefore, by setting up the guide part 31, the medicine entering the grinding chamber 11 can be tilted downward and outwardly guided to the grinding gap. Driven by the flow of the medicine liquid carried by the medicine itself, the amount of solid medicine residue on the top of the grinding piece 3 can be reduced. At the same time, the medicine pumped by the pump liquid channel 5 through the plurality of pump liquid holes 211 can be tilted downward and outwardly guided to the grinding gap, thereby increasing the flow rate of the pumped medicine liquid and improving its flushing effect on the solid medicine remaining on the top of the grinding piece 3; and, by using the lowest layer of stirring rod 42 as the entrance of the pump liquid channel 5, it can be further ensured that the liquid re-absorbed by the second pump liquid area 52 when the stirring shaft 41 descends is the liquid in the lower part of the stirring chamber 12, further avoiding the falling solid medicine from being pumped back to the grinding chamber 11 for repeated grinding, and can improve the hydraulic pressure of the first pump liquid area 51, thereby improving the pump liquid stability of the pump liquid channel 5.

[0046] In order to improve the stability of the linkage assembly 43, the linkage assembly 43 includes a gear ring 431 whose side wall is connected to the grinding part 32, a number of linkage gears 432 arranged on the inner side of the gear ring 431 and meshing with the internal teeth of the gear ring 431, a number of screw rods 433 whose lower ends are respectively rotatably connected to the bottom wall of the stirring chamber 12 and whose upper ends are respectively connected to a number of the linkage gears 432, and a lifting member 434 whose upper and lower limit sleeves are connected to the stirring shaft 41 and whose ends are respectively screwed and sleeved on the outer walls of the number of the screw rods 433. Specifically, a number of layers of the stirring rods 42 are arranged in a ring array around the stirring shaft 41 and are located between the stirring shaft 41 and the screw rods 433, and the lifting member 434 and the stirring shaft 41 are connected by a bearing sleeve; when the grinding part 3 rotates forward or reversely, it drives the gear ring 431 to rotate forward or reverse, thereby driving a number of the linkage gears 432 and the screw rods 433 to rotate forward or reverse, and then drives the lifting member 434 to descend or ascend, and then drives the stirring shaft 41 to descend or ascend. Therefore, through the cooperation between the ring gear 431 and the linkage gear 432, and the cooperation between the screw rod 433 and the lifting member 434, the stability of the stirring shaft 41 rotating and lifting when the grinding member 3 rotates is improved.

[0047] In order to realize the one-way opening and closing of the primary one-way valve and the secondary one-way valve, the primary one-way valve component 6 and the secondary one-way valve component 7 have the same structure. The primary one-way valve component 6 includes a sealing ring 61 arranged laterally in the stirring shaft 41, a sealing plug 62 arranged at the top of the sealing ring 61 and blocking the inner ring opening of the sealing ring 61, and a plurality of springs 63 connected between the sealing plug 62 and the top of the sealing ring 61; when the stirring shaft 41 descends, the second pump liquid area 52 is under negative pressure, and the sealing plug 62 of the primary one-way valve component 6 is pushed up and separated from the inner ring opening of the sealing ring 61 by the pressure difference between the second pump liquid area 52 and the first pump liquid area 51, and the sealing plug 62 of the secondary one-way valve component 7 is pulled by the spring 63 and The negative pressure sealing plug 62 of the second pumping liquid area 52 is arranged in the inner ring mouth of the sealing ring 61, and the second pumping liquid area 52 sucks the liquid in the stirring chamber 12 through the first pumping liquid area 51. When the stirring shaft 41 rises, the second pumping liquid area 52 is pressurized, and the sealing plug 62 of the secondary one-way valve is pushed up and separated from the inner ring mouth of the sealing ring 61 by the pressure difference between the second pumping liquid area 52 and the third pumping liquid area 53. The sealing plug 62 of the primary one-way valve is pulled by the spring 63 and the hydraulic sealing plug 62 of the second pumping liquid area 52 is arranged in the inner ring mouth of the sealing ring 61. The secondary one-way valve component 7 squeezes the sucked liquid upward to the third pumping liquid area 53 and sprays it out from the top of the grinding component 3 through several pumping liquid holes 211. By setting the sealing plug 62, the sealing ring 61 and the spring 63, and cooperating with the pressure change in the second pump liquid area 52 when the stirring shaft 41 is lifted up and down, a one-way conduction between the first pump liquid area 51 and the second pump liquid area 52, and the second pump liquid area 52 and the third pump liquid area 53 is achieved. No additional power is required to control the opening and closing of the first-level one-way valve component 6 and the second-level one-way valve component 7, which reduces the pumping cost, simplifies subsequent cleaning and maintenance, and has low repair and replacement costs. In addition, the opening and closing of the sealing plug 62 is closely linked with the lifting and lowering of the stirring shaft 41, with a low failure rate, which can improve the pumping efficiency and pumping stability of the pump liquid channel 5.

[0048] In order to improve the lifting stability of the stirring shaft 41, the upper end of the stirring shaft 41 is sleeved on the outer wall of the lower end of the driving shaft 21, and a limiting groove 411 and a limiting rib 212 that are embedded and slide relatively up and down are respectively provided between the inner wall of the stirring shaft 41 and the outer wall of the driving shaft 21. The upper end of the limiting groove 411 is closed and is used to limit the limiting rib 212 from sliding up and detaching.

[0049] To prevent solid medication or liquid medicine within the grinding chamber 11 from entering the third pumping zone 53 through the pump holes 211, several pump holes 211 are located on the sidewall of the upper end of the drive shaft 21. The rotary drive device 2 is located in the middle of the top of the mixing shell 1, and the drive end is equipped with a fixed ring 22 connected to the upper end of the drive shaft 21. Several reinforcing rods 23, spaced apart at annular intervals, are connected between the fixed ring 22 and the middle of the flow guide 31. By moving the positions of the pump holes 211 upward to prevent solid medication or liquid medicine within the grinding chamber 11 from entering the third pumping zone 53 through the pump holes 211, the falling height of the liquid pumped by the pump holes 211 is increased, thereby increasing its flow rate. Furthermore, the provision of the reinforcing rods 23 improves the installation stability of the grinding element 3 and extends its service life.

[0050] In order to improve the mixing efficiency of the medicine formed by the mixture of solid medicine and liquid medicine and the shield contaminated soil, the disposal device also includes a conveying mechanism 9, which includes a conveyor belt 92 driven by a conveying drive device 91 and used to convey the shield contaminated soil. Specifically, the conveying mechanism 9 is a V-shaped conveyor roller, and the conveyor belt 92 is set as a V-shaped conveyor belt 92 with an upward opening in the cross section, so that the top of the transmission belt has a accommodating trough for accommodating the flowing shield contaminated soil, and the liquid discharge mechanism 8 includes a spray shell 81 arranged above the conveyor belt 92, and a drainage pipe 82 connecting the interior of the spray shell 81 and the discharge port 14. A water pump device is provided in the drainage pipe 82. The spray shell 81 is hollow and has a number of corresponding ones passing through the bottom. The spray hole 811 at the top of the conveyor belt 92, the bottom of the spray shell 81 is rotated and penetrated by several stirring columns 813 extending vertically and arranged at intervals laterally, and the spray shell 81 is rotated and provided with several stirring gears 812 which are respectively sleeved on the stirring columns 813 and meshed in sequence, and the lower ends of the several stirring columns 813 extend downward to the conveyor belt 92 and are fixed with several outwardly extending disturbance rods 814, and the stirring column 813 near the drain pipe 82 is sleeved with a turbine 815 corresponding to the discharge port of the drain pipe 82; the liquid entering the drain pipe 82 impacts the turbine 815 and drives the several stirring gears 812 and the stirring columns 813 to rotate, thereby driving the several disturbance rods 814 to rotate.

[0051] The method for using the shield contaminated soil disposal device as described above comprises the following steps:

[0052] S1, a medicine including a liquid medicine and a solid medicine is fed into the grinding chamber 11 through the feed port 13, and the rotary drive device 2 drives the drive shaft 21 to rotate forward or reverse, thereby driving the grinding member 3 to rotate forward or reverse, and the grinding member 3 drives the stirring member to descend or ascend through the linkage assembly 43. Specifically, when the grinding member 3 rotates forward or reversely, it drives the gear ring 431 to rotate, thereby driving the plurality of linkage gears 432 and the screw rod 433 to rotate forward or reverse, thereby driving the lifting member 434 to descend or ascend, and then driving the stirring shaft 41 to descend or ascend. The liquid medicine falls into the stirring chamber 12 through the grinding gap under the action of gravity and the diversion action of the guide part 31. The solid medicine enters the grinding gap under the action of the liquid medicine, gravity and the diversion action of the guide part 31. The solid medicine is ground into fine particles through the grinding gap and falls into the stirring chamber 12.

[0053] S2, the liquid medicine and the fine granular solid medicine fall into the stirring chamber 12 and are rotated and lifted by a number of stirring rods 42 to stir and mix to form a liquid medicine. When the stirring shaft 41 descends, the second pump liquid area 52 is under negative pressure, and the sealing plug 62 of the first one-way valve component 6 is pushed up and separated from the inner ring mouth of the sealing ring 61 by the pressure difference between the second pump liquid area 52 and the first pump liquid area 51. The sealing plug 62 of the secondary one-way valve component 7 is pulled by the spring 63 and the negative pressure sealing plug 62 of the second pump liquid area 52 is set in the inner ring mouth of the sealing ring 61. The second pump liquid area 52 is sucked into the first pump liquid area 51 through the first pump liquid area 51. When the stirring shaft 41 rises, the second pumping area 52 is pressurized for stirring the liquid in the stirring chamber 12. The sealing plug 62 of the secondary one-way valve is pushed up and separated from the inner ring opening of the sealing ring 61 by the pressure difference between the second pumping area 52 and the third pumping area 53. The sealing plug 62 of the primary one-way valve is pulled by the spring 63 and the hydraulic sealing plug 62 of the second pumping area 52 is arranged in the inner ring opening of the sealing ring 61. The secondary one-way valve component 7 squeezes the sucked liquid upward to the third pumping area 53 and sprays it out of the top of the grinding member 3 through the plurality of pumping holes 211 to flush the solid medicine remaining on the top of the grinding member 3.

[0054] S3, after the stirring element rotates and rises and falls to stir and mix, the discharge port 14 is opened to discharge the liquid agent into the shield contaminated soil through the liquid discharge mechanism 8. Specifically, the V-shaped conveyor roller drives the V-shaped conveyor belt 92 to continuously transport the shield contaminated soil to the bottom of the spray shell 81. The liquid in the discharge pipe 82 hits the turbine 815 and then falls into the shield contaminated soil through the spray hole 811. The turbine 815 drives the several stirring gears 812 and the stirring column 813 to rotate, and then drives the several disturbance rods 814 to rotate to stir and mix the shield contaminated soil and the liquid agent, so as to promote mixing efficiency and reaction efficiency.

[0055] Example 2

[0056] refer to Figure 7-11The difference between this embodiment and the first embodiment is that:

[0057] In order to increase the coverage area of ​​the liquid pumped by the plurality of pump holes 211 after being pumped out, the outer ends of the plurality of pump holes 211 are slender and the length is extended circumferentially along the drive shaft 21. The inner diameter of the pump hole 211 gradually decreases from the inner end to the outer end and the inner end is higher than the outer end; the liquid is sprayed out through the plurality of pump holes 211 in a blade-like shape that is inclined downward and outward. Thus, by setting the outer end of the pump hole 211 to be slender, and setting the pump hole 211 to be larger at the inner end and smaller at the outer end, and higher at the inner end and lower at the outer end, the liquid pumped by the pump hole 211 is pressurized and ejected downward and outward in a blade-like shape, thereby increasing the coverage area of ​​the liquid pumped by the pump hole 211, thereby increasing the flushing area and flushing speed of the guide part 31 by the pumped liquid, improving the flushing effect, and reducing the probability of residual solid matter on the guide part 31. In addition, the design of higher inner end and lower outer end can further prevent the liquid medicine or solid medicine in the grinding chamber 11 from splashing into the pump hole 211, and avoid clogging of the slender outer end pump hole 211.

[0058] In order to increase the flow rate of the liquid pumped by the plurality of pump holes 211 after being pumped out, the plurality of pump holes 211 are located on the side wall of the upper end of the drive shaft 21, the rotary drive device 2 is provided at the top middle of the stirring shell 1 and the driving end is provided with a fixing ring 22 connected to the upper end of the drive shaft 21, and a plurality of reinforcing members 24 arranged at annular intervals are connected between the fixing ring 22 and the middle of the guide portion 31, and the plurality of reinforcing members 24 are spirally arranged from top to bottom along the reverse direction of the drive shaft 21, and the plurality of reinforcing members 24 are close to each other. A guide groove 241 is recessed on one side of the drive shaft 21, and a guide port 242 is provided on the lower end of the guide groove 241 close to the spiral direction of the reinforcement 24; several of the guide grooves 241 are used to receive the liquid sprayed out of several pump liquid holes 211 in a blade-like manner downward and outward, and then accelerate it in a downward spiral. Specifically, under the action of the blade-like liquid's own impulse and the reverse force of the drive shaft 21, the guide groove 241 guides the liquid spirally downward through the guide port 242 to be flushed to the top of the guide part 31. Thus, on the basis of improving the connection strength between the fixing ring 22 and the grinding member 3 and improving the stability of the grinding member 3 by setting up several reinforcement members 24, by adding the spiral guide groove 241, the liquid sprayed from the several pump holes 211 is spirally accelerated through the guide groove 241 and then rushed out through the guide port 242 to spread and flush the guide part 31, further improving the coverage area and flow rate of the liquid pumped by the several pump holes 211 after being pumped out, and further improving the flushing area and flushing speed of the guide part 31 by the pumped liquid.

[0059] It should be noted that the implementation principle and technical effects of this embodiment are the same as those of the first embodiment. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in the first embodiment.

[0060] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A shield contaminated soil disposal device, characterized in that: include: A mixing mechanism and a liquid discharge mechanism (8), wherein the mixing mechanism comprises: A stirring shell (1) is provided with a driving shaft (21) driven by a rotary drive device (2) to rotate forward or reverse, and a grinding member (3) sleeved on the driving shaft (21). A gap is formed between the circumferential side wall of the grinding member (3) and the inner wall of the stirring shell (1) to form a grinding gap and to divide the interior of the stirring shell (1) into a grinding chamber (11) and a stirring chamber (12) distributed vertically. A plurality of pump holes (211) corresponding to the grinding chamber (11) are provided through the side wall of the driving shaft (21). A feed port (13) and a discharge port (14) respectively connected to the grinding chamber (11) and the stirring chamber (12) are provided through the side wall of the stirring shell (1). The discharge port (14) is connected to the liquid discharge mechanism (8). A stirring assembly (4) is provided in the stirring chamber (12), the stirring assembly (4) comprising a stirring member linked to the drive shaft (21), and a linkage assembly (43) connecting the grinding member (3) and the stirring member. The stirring member and the drive shaft (21) are sequentially connected to form a pumping channel (5) connecting the stirring chamber (12) and the pumping hole (211). A first-level one-way valve member (6) is provided in the stirring member, and a second-level one-way valve member (7) located below the pumping hole (211) is provided in the drive shaft (21). The first-level one-way valve member (6) and the second-level one-way valve member (7) divide the pumping channel (5) from bottom to top into a first pumping area. (51), a second pumping area (52), and a third pumping area (53); when the grinding member (3) is driven by the driving shaft (21) to rotate forward or reverse, the stirring member is driven to descend or ascend through the linkage assembly (43); when the stirring member descends, the negative pressure of the second pumping area (52) opens the first one-way valve member (6) and sucks the liquid in the stirring chamber (12) through the first pumping area (51); when the stirring member ascends, the second pumping area (52) increases the pressure to open the second one-way valve member (7) and squeezes the sucked liquid upward to the third pumping area (53) and sprays it out of the top of the grinding member (3) through a plurality of pumping holes (211).

2. A shield contaminated soil disposal device according to claim 1, characterized in that: The grinding member (3) is configured as a cover with an opening facing downward, and the top is configured as a guide portion (31) whose height gradually decreases from the center to the periphery. The outer edge of the guide portion (31) extends downward to form a grinding portion (32) with a gap formed with the inner wall of the stirring shell (1) to form the grinding gap. The stirring member comprises a stirring shaft (41) that is sleeved on the driving shaft (21) and a plurality of layers of stirring rods (42) connected to the side wall of the stirring shaft (41) and extending outward from top to bottom. The stirring rods (42) at the bottom are sequentially connected to the stirring shaft (41) and the driving shaft (21) to form a pump liquid channel (5) connecting the stirring chamber (12) and the pump liquid hole (211).

3. A shield contaminated soil disposal device according to claim 2, characterized in that: The linkage assembly (43) comprises a gear ring (431) whose side wall is connected to the grinding part (32), a plurality of linkage gears (432) arranged on the inner side of the gear ring (431) and meshing with the inner teeth of the gear ring (431), a plurality of screw rods (433) whose lower ends are respectively rotatably connected to the bottom wall of the stirring chamber (12) and whose upper ends are respectively connected to the plurality of linkage gears (432), and a lifting member (434) whose upper and lower limit sleeves are respectively sleeved on the stirring shaft (41) and whose ends are respectively screwed and sleeved on the outer walls of the plurality of screw rods (433); when the grinding part (3) rotates forward or reversely, it drives the gear ring (431) to rotate forward or reversely, thereby driving the plurality of linkage gears (432) and the screw rods (433) to rotate forward or reversely, and then driving the lifting member (434) to descend or ascend, and then driving the stirring shaft (41) to descend or ascend.

4. A shield contaminated soil disposal device according to claim 2, characterized in that: The first-stage one-way valve component (6) and the second-stage one-way valve component (7) have the same structure. The first-stage one-way valve component (6) comprises a sealing ring (61) arranged transversely in the stirring shaft (41), a sealing plug (62) arranged at the top of the sealing ring (61) and blocking the inner ring opening of the sealing ring (61), and a plurality of springs (63) connected between the sealing plug (62) and the top of the sealing ring (61); when the stirring shaft (41) descends, the second pumping liquid area (52) is negatively pressurized, and the sealing plug (62) of the first-stage one-way valve component (6) is pushed up and separated from the inner ring opening of the sealing ring (61) by the pressure difference between the second pumping liquid area (52) and the first pumping liquid area (51); when the stirring shaft (41) ascends, the second pumping liquid area (52) is pressurized, and the sealing plug (62) of the second-stage one-way valve is pushed up and separated from the inner ring opening of the sealing ring (61) by the pressure difference between the second pumping liquid area (52) and the third pumping liquid area (53).

5. The shield contaminated soil disposal device according to claim 2, characterized in that: The upper end of the stirring shaft (41) is sleeved on the outer wall of the lower end of the driving shaft (21); a limiting groove (411) and a limiting rib (212) are respectively provided between the inner wall of the stirring shaft (41) and the outer wall of the driving shaft (21), which are embedded in each other and slide up and down relatively; the upper end of the limiting groove (411) is closed and is used to limit the limiting rib (212) from sliding up and disengaging.

6. The shield contaminated soil disposal device according to claim 2, characterized in that: The plurality of pump holes (211) are located on the side wall of the upper end of the drive shaft (21); the rotary drive device (2) is arranged at the top middle portion of the stirring shell (1); and a fixed ring (22) connected to the upper end of the drive shaft (21) is provided at the drive end; and a plurality of reinforcing rods (23) arranged at intervals in an annular manner are connected between the fixed ring (22) and the middle portion of the guide portion (31).

7. The shield contaminated soil disposal device according to claim 2, characterized in that: The outer ends of the plurality of pump holes (211) are slender and their lengths are extended along the circumference of the drive shaft (21). The inner diameter of the pump holes (211) gradually decreases from the inner end to the outer end, and the inner end is higher than the outer end. The liquid is ejected through the plurality of pump holes (211) in a blade-like shape that is inclined downward and outward.

8. The shield-turbine contaminated soil disposal device according to claim 7, characterized in that: The plurality of pump holes (211) are located on the side wall of the upper end of the drive shaft (21); the rotary drive device (2) is arranged at the middle of the top of the stirring shell (1) and the drive end is provided with a fixed ring (22) connected to the upper end of the drive shaft (21); a plurality of reinforcing members (24) arranged at annular intervals are connected between the fixed ring (22) and the middle of the guide portion (31); the plurality of reinforcing members (24) are spirally arranged from top to bottom along the reverse direction of the drive shaft (21); a guide groove (241) is recessed on one side of the plurality of reinforcing members (24) close to the drive shaft (21); a guide port (242) is penetrated at the lower end of the guide groove (241) close to the spiral direction of the reinforcing member (24); the plurality of guide grooves (241) are used to receive the liquid sprayed out of the plurality of pump holes (211) in a downward and outward blade shape and then accelerate the liquid in a downward spiral.

9. The shield contaminated soil disposal device according to claim 1, characterized in that: The invention also includes a conveying mechanism (9), wherein the conveying mechanism (9) includes a conveyor belt (92) driven by a conveying drive device (91) and used to convey shield contaminated soil. The liquid discharge mechanism (8) includes a spray shell (81) arranged above the conveyor belt (92), a liquid discharge pipe (82) connecting the interior of the spray shell (81) and the discharge port (14), a water pump device is arranged in the liquid discharge pipe (82), the spray shell (81) is hollow and has a plurality of spray holes (811) corresponding to the top of the conveyor belt (92) through the bottom, and a plurality of stirring columns (811) extending vertically and arranged at intervals in the horizontal direction are rotated and passed through the bottom of the spray shell (81). 13), a plurality of stirring gears (812) are respectively sleeved on the stirring columns (813) and meshed in sequence and are rotatably provided in the spray housing (81), the lower ends of the plurality of stirring columns (813) extend downward to the conveyor belt (92) and are fixed with a plurality of outwardly extending disturbance rods (814), and a turbine (815) corresponding to the discharge port of the discharge pipe (82) is sleeved on the stirring column (813) close to the discharge pipe (82); the liquid entering the discharge pipe (82) impacts the turbine (815) and drives the plurality of stirring gears (812) and the stirring columns (813) to rotate, thereby driving the plurality of disturbance rods (814) to rotate.

10. A method for using a shield contaminated soil disposal device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, a medicine including a liquid medicine and a solid medicine is fed into the grinding chamber (11) through the feed port (13), and the rotary drive device (2) drives the drive shaft (21) to rotate forward or reverse, thereby driving the grinding member (3) to rotate forward or reverse, and the grinding member (3) drives the stirring member to descend or ascend through the linkage assembly (43), and the liquid medicine falls into the stirring chamber (12) through the grinding gap under the action of gravity, and the solid medicine falls into the stirring chamber (12) after being ground through the grinding gap; S2, after the liquid medicine and the solid medicine fall into the stirring chamber (12), they are stirred and mixed by the stirring member rotating and rising and falling to form a liquid medicine. When the stirring member descends, the negative pressure of the second pumping area (52) opens the first-level one-way valve member (6) and sucks the liquid medicine in the stirring chamber (12) through the first pumping area (51). When the stirring member rises, the second pumping area (52) increases the pressure and opens the second-level one-way valve member (7) to squeeze the sucked liquid medicine upward to the third pumping area (53) and spray it out from the top of the grinding member (3) through a plurality of pumping holes (211) to wash away the solid medicine remaining on the top of the grinding member (3); S3, after the stirring element rotates and rises and falls to stir and mix, the discharge port (14) is opened to discharge the liquid agent into the shield contaminated soil through the liquid discharge mechanism (8).

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