Thermal consolidation treatment device for waste slurry

Abstract

The thermal consolidation treatment device comprises an upper box body and a lower box body which are detachable, and a loading system, a heating system, a monitoring system, a drainage system and an automatic regulation and control device are arranged in the box bodies; the loading system comprises a settlement plate which is arranged at the top of the box body and can move up and down, a power device for applying a vertical load to the settlement plate, and a screwing device which is arranged in the lower box body and is used for applying a circumferential load to the slurry; the drainage system comprises a hollow transmission rod, and a suction device is connected between the screwing blade and the wall surface of the lower box body; the monitoring system comprises a displacement monitoring device and a plurality of pore pressure and temperature integrated sensors; the automatic regulation and control device is used for controlling the operation of the loading system and the heating system according to the value change of the pore pressure and temperature integrated sensor. Integrated automatic efficient thermal consolidation can be achieved, the consolidation efficiency and the data accuracy and stability in the consolidation process are effectively improved, and the purpose of stable and efficient consolidation treatment of waste slurry is achieved.

Description

Technical Field

[0001] The invention relates to a mud processing device, in particular to a thermal consolidation processing device for waste mud. Background Art

[0002] The thermal consolidation method is based on the drainage consolidation method. The heat source is added inside or outside the consolidated soil. The heat is used to accelerate the outflow of water in the soil and improve the consolidation efficiency of the soil. The reinforcement efficiency and reinforcement effect of the thermal consolidation method and the change law of the mechanical properties of the soil under the action of temperature are the key factors for the promotion of the thermal consolidation method. Since the mechanism of thermal consolidation treatment is relatively complex and considering the complexity of the on-site construction conditions, the test results obtained from the on-site test are not ideal, which is not conducive to the promotion of the thermal consolidation method.

[0003] Therefore, when exploring the influence of thermal consolidation method on soil consolidation law, the model test method with small scale, low cost and high controllability is generally adopted. However, the models in the model tests adopted in the current literature all use ballast to pressurize the soil, which requires the help of external devices such as reaction frames, and the safety and stability of the test are difficult to guarantee; at the same time, all model slots adopt the same feeding and discharging ports, making it extremely difficult to remove the hardened soil from the box after consolidation, affecting the progress of the test; in addition, all model slots only consider the top loading of the soil, but do not consider the increase of lateral pressure loading, which makes the soil consolidation efficiency low; and most of the soil drainage channels are paved with sand and gravel, which is very easy to be damaged during the test due to uneven soil settlement, resulting in drainage obstruction, and after the sand and gravel drainage channel is blocked, it can only be restored by re-testing and re-paving the drainage channel, and the stability of the test is difficult to guarantee.

[0004] In the traditional thermal consolidation treatment device, patent CN2021111271223 discloses a vertical shaft foundation thermal drainage consolidation test device, which includes: a test box, a pressurizing mechanism, a drainage mechanism, and a heating mechanism. The gas control unit is used as the power of the pressurizing mechanism, a vertical shaft is set as a drainage mechanism, and a heating coil is set between the two layers of the vertical shaft as a heat source; the invention has a compact structure and complete functions, and can effectively reduce the moisture content of the consolidated soil to achieve the purpose of soil consolidation; but the existing boxes all set the feed port and the discharge port to be consistent, and do not consider the problem that the soil hardens after the consolidation is completed and it is extremely difficult to remove it from the box, which makes the cleaning work after the test is completed and the replacement of the new working conditions for the test have certain difficulties, as well as the transportation is more troublesome. At the same time, it is impossible to adjust the loading pressure in time according to the pore pressure of the consolidated soil, and the influence of temperature drift and the possible seepage of water from the box is not considered, thereby affecting the accuracy of the test. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a thermal consolidation treatment device for waste mud that can improve consolidation efficiency and stability and data accuracy during the consolidation process.

[0006] Technical solution: The thermal consolidation treatment device for waste mud described in the present invention comprises a box body, which is provided with a mud feed inlet and a discharge port after the mud is consolidated, and the box body comprises a detachable upper box body and a lower box body; the box body is provided with a loading system, a heating system, a monitoring system, a drainage system, and an automatic control device; the loading system comprises a settling plate which is arranged on the top of the upper box body and can move up and down, a power device for applying a vertical load to the settling plate, and a tightening device which is arranged in the lower box body and is used to apply a circumferential load to the mud; the tightening device comprises a plurality of tightening blades which are arranged in an overlapping manner in sequence along the circumferential direction of the inner wall of the lower box body and can be tightened; a device is connected between the settling plate and the tightening blades, which can push the blades to tighten as the settling plate descends, thereby tightening the slurry A hollow transmission rod for applying circumferential pressure to the mud; the drainage system includes the hollow transmission rod, the wall of the hollow transmission rod is provided with a hole structure for the liquid generated after the mud is compressed to enter, a suction device that can extract air as the tightening blade rotates is connected between the tightening blade and the wall of the lower box, the bottom of the hollow transmission rod is connected to the inside of the suction device, and is used to discharge the liquid in the hollow transmission rod; the heating system is fixed to the bottom of the settling plate; the monitoring system includes a displacement monitoring device that can monitor the downward displacement of the settling plate, and a plurality of pore pressure and temperature integrated sensors for detecting the pore pressure and temperature of the mud; the automatic control device is used to control the operation of the loading system and the heating system according to the value changes of the pore pressure and temperature integrated sensors.

[0007] The power device includes a pulling motor installed in the box, a movable pulley located below the sinking plate, a chain drawn out from the pulling motor and wound around the movable pulley, one end of the chain is fixed on the pulling motor, and the other end is wound into the pulling motor to drive the movable pulley to descend; a circle of balls is provided on the inner ring of the movable pulley, and a first folding rod is fixed between the center of the circle of balls and the sinking plate, which can descend with the movable pulley to apply pressure to the sinking plate. A movable pulley slideway is provided between the sinking plate and the lower box for the movable pulley to move vertically; the displacement detection device includes gear teeth on the chain, and the displacement monitoring device determines the displacement of the sinking plate by the number of chain gear teeth of the pulling motor retracted into the device.

[0008] The traditional thermal consolidation method usually applies ballast at the top and uses a jack to apply load in the middle, which easily causes the settlement plate to tilt during the descent process, resulting in uneven load application. To solve this problem, the present invention sets a movable pulley around the settlement plate and a slideway to ensure that the settlement plate can maintain a horizontal state when descending, so that the soil is more evenly stressed, and removes the ballast device. High-strength thin steel cables are used instead of ballast. The four movable pulleys can reduce the required load to 1 / 8, or obtain a higher pressure when the same force is applied to the soil. In addition, the setting of these slideways can also serve as drainage channels to improve drainage efficiency.

[0009] Among them, the suction device includes a vacuum cylinder whose top is connected to the bottom of the hollow transmission rod and fixed on the tightening blade, and a retractable pull rod with one end fixed on the inner wall of the lower box body and the other end extending from the opening end of the vacuum cylinder; a retractable rubber plug is fixed to the end of the retractable pull rod located in the vacuum cylinder; a plurality of pairs of bayonet sockets for matching blocks are vertically arranged on the surface of the retractable pull rod; a pipe connected to the outside is covered on the outside of the retractable pull rod; the vacuum cylinder moves away from the retractable pull rod as the tightening blade is tightened, and when the retractable rubber plug reaches the opening of the vacuum cylinder, the retractable pull rod is extended to reset the retractable rubber plug to the top of the vacuum cylinder, so that the retractable pull rod performs a piston motion in the vacuum cylinder to discharge the liquid from the hollow transmission rod.

[0010] Wherein, a spring 1 is provided inside the retractable pull rod, and the top of the spring 1 is connected to the retractable rubber plug; a first pressing block is provided on the top of the retractable rubber plug, and second pressing blocks are respectively provided at opposite positions on both sides; a second folding rod is connected between the first pressing block and the second pressing block, and a fixed pulley is provided at the folding point of the second folding rod so that the two ends of the second folding rod can rotate around the pulley, so that one of the first pressing block and the second pressing block is extended and the other is retracted; the bottom of the first pressing block is connected to the vertical rod vertically extending into the inside of the rubber plug, and the second pressing block is connected to the cross rod horizontally extending into the inside of the rubber plug, and the relative positions on both sides of the retractable rubber plug are respectively provided with blocks that can be clamped on the retractable pull rod, one end of the vertical connecting rod is connected to the cross rod and the other end is connected between the block and the module, so that the movement of the cross rod drives the module or the block to move through the connecting rod; the bottom of the vertical rod is provided with an insertion end that can be inserted between the two modules;

[0011] When the first pressing block hits the top of the vacuum cylinder, it contracts and drives the vertical rod to move downward, and the insertion end of the vertical rod is inserted between the two modules so that the clamping block extends and clamps on the corresponding clamping hole on the telescopic pull rod, so that the spring in the telescopic pull rod is fixed and the length of the telescopic pull rod is fixed;

[0012] When the first pressing block contracts, the second pressing block pops out at the same time. When the second pressing block moves to the opening of the vacuum cylinder, it is restricted and contracts, causing the first pressing block to pop out. The vertical rod moves up to bring the two modules closer, and the horizontal rod contracts accordingly. The card block is retracted, which releases the spring in the retractable pull rod, and the retractable pull rod extends, causing the retractable rubber plug to return to the top of the vacuum cylinder.

[0013] Among them, a transmission rod slot is provided on the outer wall of the tightening blade, and the bottom of the hollow transmission rod extends into the transmission rod slot and can move from one side to the other side in the transmission rod slot as the settling plate descends, thereby pushing the tightening blade to tighten.

[0014] Among them, the bottom of the box body is located below the tightening blade and is provided with a blade slide for the tightening blade to slide during the tightening process; the blade slide is provided with a fixed end and a movable end, the fixed end is fixed to the bottom of the box body, and the movable end is connected to the bottom of the box body through spring 2; when the tightening blade is tightened, the movable end can rotate around the fixed end.

[0015] During the tightening process of the tightening device of the present invention, the structure of the suction device will be pulled, and an outward suction effect similar to that of an air pump will be produced. The internal petal-shaped rubber plug will be gathered into a flower bud shape when passing through the round hole, and then the mechanical device will push the flower bud-shaped rubber plug back to its original position, so that the vacuum operation is repeated continuously during the continuous tightening of the tightening device. This vacuum process replaces the function of the vacuum pump and accelerates the discharge of water in the transmission rod, slideway and other drainage channels in the device. The petal-shaped rubber plug can open and close. It needs to be opened when pulled out to produce a suction effect, and loses the vacuum effect after closing so that it is convenient to return to the original position and prepare for the next vacuuming.

[0016] The heating system comprises a columnar shell with openings at both ends and a top connected to the bottom of a settling plate, and a waterproof heater arranged in the columnar shell that can freely extend and retract as the settling plate moves up and down.

[0017] The columnar shell is filled with vertically arranged gravel, the top and bottom of the mud between the sedimentation plate and the lower box are respectively filled with transversely arranged gravel, and the drainage system also includes a drainage channel formed by connecting the transversely arranged gravel and the vertically arranged gravel.

[0018] Wherein, an elastic base is provided at the bottom of the lower box body, and the discharge port can be opened and closed on the elastic base.

[0019] The box of the present invention includes an upper box and a lower box connected up and down. The present invention localizes the box so that the large box can be disassembled and transported during transportation, solving the problem of difficulty in transporting the large box. Fasteners are used to reinforce the connection between the two parts of the box and the silicone waterproof belt is set to ensure that during the consolidation test, the box can still maintain the required strength and no water seepage problem occurs. The existing box base structure is changed to an elastic base design in the middle to avoid collision and damage during transportation. At the same time, the elastic potential energy is stored by using the dead weight of the consolidated soil in the early stage. After the soil is removed, the elastic base can use the stored elastic potential energy to restore the tightening device to its original state to prepare for the next consolidation test.

[0020] Among them, the outside of the box is provided with a heating plate for heating the mud, and the heating plate is connected to the solar panel to provide electrical energy to the heating plate. Traditional thermal consolidation experiments usually use hot rods or hot water for heating, and the temperature of the box is maintained by an external insulation layer. The present invention uses an external heating plate to connect the solar panel, which is installed on the outside of the box in turn. The solar panel can not only keep the inside of the box warm, but also convert solar energy into electrical energy for the operation of other components in the device (such as movable pulleys, automatic control devices). At the same time, the external heating plate, together with sunlight, cooperates with the hot rod to achieve simultaneous heating inside and outside, so that the device heats up more evenly and quickly.

[0021] Principle of the invention: The present invention changes the traditional consolidation model into a two-part box. To simulate the twisting effect, the lower part of the box is set to a truncated cone shape and consists of multiple movable blades. While applying pressure on the top of the box, when the loading plate descends, the transmission rod is used to drive the lower part of the box to rotate and tighten, and lateral pressure is applied to the soil while applying upper pressure to accelerate the consolidation process. When the settlement plate descends, the transmission rod moves obliquely downward and reaches one end of the slide, driving the connected tightening blade to move to the right. When each tightening blade, which is thick on the left and thin on the right, moves to the right at the same time, it has a tightening effect, applies lateral pressure to the soil, and changes the single-axis loading mode of the traditional box to a three-axis loading mode, thereby improving the consolidation efficiency.

[0022] In the current thermal consolidation model tank, the conventional drainage channel has the problem of easy silting, which hinders the effective reduction of water content. The layout of the drainage channel is also relatively complicated. During the loading process, the uneven settlement of the soil may cause the sand and gravel in the channel to mix with the consolidated soil, causing the drainage channel to be blocked and fail. Once the drainage channel fails, it will inevitably lead to the need to re-test, and this loss cannot be compensated. To solve this problem, the present invention uses a transmission rod and a slide to replace the traditional drainage channel. The slide and the transmission rod are covered with a semipermeable membrane on the surface, and a dense mesh structure that can move up and down is installed inside, which is similar to the blockage cleaning mechanism in human blood vessels. When the drainage channel is blocked by silt, this dense mesh structure can clean out the silt to avoid the blockage of the drainage channel during the experiment. This method can not only avoid the cumbersome arrangement of the drainage channel, but also can conveniently remove the silt or replace the drainage channel when necessary, thereby improving the experimental stability.

[0023] Beneficial effects: Compared with the prior art, the present invention has achieved the following significant effects: (1) The present invention improves the traditional single consolidation model into a two-part box body connected from top to bottom, and the tightening device simulates the twisting effect, thereby improving the consolidation efficiency in the experiment and accelerating the test consolidation process; and the suction device creates an external suction effect during the tightening process of the tightening device, accelerating the discharge of liquid in the soil, further improving the experimental efficiency and accuracy, and the transmission rod not only plays a transmission role but also replaces the traditional drainage channel for drainage, effectively avoiding the problem of drainage channel blockage, and improving the stability and sustainability of the experiment. (2) The present invention sets a movable pulley and a slideway under the sedimentation plate, which effectively ensures that the soil is uniformly stressed, further improving the efficiency and reliability of the consolidation test. (3) The traditional way of feeding and discharging materials is changed, and a feed port is set from the top and a discharge port is set below the tightening device. When the consolidation is completed, the soil can be squeezed out of the box body by tightening the tightening device, so that the consolidated soil can be easily moved out of the box body, and a good consolidation degree can be maintained when moving out of the box body, so that the consolidation test can be more convenient and quick to replace the soil body. (4) The box body is localized into upper and lower boxes, which is convenient for transportation and operation, while ensuring strength and waterproofness, effectively improving the convenience and reliability of the test. (5) The external heating plate is connected to the solar panel to achieve simultaneous internal and external heating, significantly improving the uniformity and speed of heating, optimizing the experimental conditions, and enhancing the comparability and accuracy of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a thermal consolidation treatment device for waste sludge of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the hollow transmission rod and the suction device of the present invention;

[0026] Figure 3It is a schematic diagram of the enlarged structure of the tightening blade of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the slide groove on the tightening blade of the present invention;

[0028] Figure 5 It is a schematic diagram of the top view of the structure of the tightening device of the present invention;

[0029] Figure 6 is a schematic structural diagram of the suction device of the present invention;

[0030] Figure 7 It is a schematic diagram of the enlarged structure of the retractable pull rod in the suction device of the present invention;

[0031] Figure 8 It is a schematic diagram of the enlarged structure of the telescopic pull rod head in the suction device of the present invention;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the tightening device of the present invention before and after tightening;

[0033] Fig.10 It is a schematic diagram of the structure of the power device of the present invention;

[0034] Fig.11 It is a structural schematic diagram of the settling plate of the present invention;

[0035] Fig.12 It is a structural schematic diagram of the elastic base of the present invention. DETAILED DESCRIPTION

[0036] The present invention is described in further detail below.

[0037] like Figure 1-12As shown, the present invention provides a thermal consolidation treatment device for waste mud, including a box body, the box body includes an upper box body 1 and a lower box body 2 connected up and down; a mud feed port is provided at the top of the upper box body 1, and a discharge port after the mud is solidified is provided at the bottom of the lower box body 2. A loading system, a heating system, a monitoring system, a drainage system, and an automatic control device are provided in the box body; the loading system includes a settling plate 11 which can move up and down and is arranged on the top of the box body, a power device 3 for applying a vertical load to the settling plate 11, and a tightening device 4 which is arranged at the lower part of the box body and is used to apply a circumferential load to the mud; the tightening device 4 includes a plurality of tightening blades 10 which are arranged in an overlapping manner along the circumferential direction of the inner wall of the lower box body and can be tightened; a hollow transmission rod 12 is connected between the settling plate 11 and the tightening blade 10, which can push the blade 10 to tighten as the settling plate 11 descends, thereby applying a circumferential pressure to the mud; the drainage system includes a hollow transmission rod 12, and the wall surface of the hollow transmission rod 12 A hole structure is provided for the entry of liquid generated after the mud is compressed. A suction device 14 is connected between the tightening blade 10 and the lower wall of the box body, and can extract air as the tightening blade 10 rotates. The bottom of the hollow transmission rod 12 is connected to the inside of the suction device 14, and is used to discharge the liquid in the hollow transmission rod 12; the heating system is fixed to the bottom of the settling plate 11; the monitoring system includes a displacement monitoring device that can monitor the downward displacement of the settling plate 11, and a plurality of pore pressure and temperature integrated sensors for detecting the pore pressure and temperature of the mud; the automatic control device is used to automatically respond or manually correct according to the value changes of the pore pressure and temperature integrated sensor, so as to control the operation of the loading system and the heating system.

[0038] In the tightening device 4 of the present invention, a transmission rod slide groove 13 is inlaid on the outer side of the tightening blade 10, and a transmission rod slideway 30 is arranged in the transmission rod slide groove 13. Anti-slip strips 29 are arranged on both sides of the transmission rod slideway 30 to prevent the hollow transmission rod 12 from accidentally detaching from the slide groove at the connection with the suction device 14. The bottom of the hollow transmission rod 12 extends into the transmission rod slideway 30 in the transmission rod slide groove 13. When the settling plate 11 descends, the hollow transmission rod 12 moves downward accordingly. When the lower end of the hollow transmission rod 12 moves from the left end of the transmission rod slide groove 13 to the right end, the continued movement of the hollow transmission rod 12 will drive the tightening blade 10 to tighten and do work, giving the soil a corresponding lateral pressure.

[0039] The bottom of the box is located below the tightening blade 10 and is provided with a blade slot 31 for the tightening blade 10 to slide during the tightening process. The blade slot 31 is provided with a blade slide 32; the blade slot 31 is provided with a fixed end and a movable end, the fixed end is fixed to the bottom of the box, and the movable end is connected to the bottom of the box through a spring 34; when the tightening blade 10 is tightened, the movable end can rotate around the fixed end. The right side of the blade slot 31 of this embodiment is fixed to the bottom of the lower box by a bolt 33, and the left side of the blade slot 31 is connected to the outer boundary of the discharge port by a spring 34, and the left side of the blade slot 31 can rotate around the bolt 33, so that when the tightening blade 10 moves to the right, the blade slot 31 rotates inward synchronously while tightening. A roller 35 is provided at the bottom of the tightening blade 10, which can move in the blade slide 32.

[0040] The suction device 14 of the present embodiment comprises a suction cylinder 17 whose top is connected to the bottom of the hollow transmission rod 12 and fixed on the tightening blade 10, a retractable rod 26 whose one end is fixed to the inner wall of the lower box body and the other end extends from the open end of the suction cylinder 17, and the open end is a circular hole 25; a retractable rubber plug is fixed to the end of the retractable rod 26 located in the suction cylinder 17; a plurality of pairs of bayonet holes for matching the card blocks are arranged vertically on the surface of the retractable rod 26; a pipe connected to the outside is sheathed on the outside of the retractable rod 26, and a drain valve 27 is arranged at the connection between the pipe and the box body, and a filter screen is arranged in the drain valve 27; the suction cylinder 17 moves in a direction away from the retractable rod 26 as the tightening blade 10 is tightened, and when the retractable rubber plug reaches the opening of the suction cylinder 17, the retractable rod 26 is extended to reset the retractable rubber plug to the top of the suction cylinder 17, so that the retractable rod 26 performs piston motion in the suction cylinder 17 to discharge the liquid from the hollow transmission rod 12. It is worth noting that the bottom of the hollow transmission rod 12 and the top tube mouth 23 of the vacuum cylinder 17 are connected, and the liquid can directly enter the vacuum cylinder 17, while the hollow transmission rod 12 moves in the slide groove on the tightening blade 10 and is not connected to the tightening blade 10, so the liquid will not flow out to the tightening blade 10. The retractable rubber plug of this embodiment is a petal-shaped rubber plug, which includes a body and a petal-shaped elastic body arranged on the body. During the tightening process, the tightening device 4 will pull the petal-shaped rubber plug outward. When the rubber plug passes through the circular hole 25, the petal-shaped rubber plug will close into a flower bud-shaped rubber plug. When the rubber plug is pushed back to a distance again, the next suction is performed, so that during the gradual tightening process of the tightening device 4, the suction device 14 can complete multiple repeated suctions of the water in the drainage channel to accelerate drainage. A filter screen is provided at the connection between the suction device 14 and the box body, which can effectively prevent the loss of soil particles when discharging muddy water.

[0041] Among them, a spring 43 is arranged inside the retractable pull rod 26, and the top of the spring 43 is connected to the retractable rubber plug 24; a first pressing block 44 is arranged on the top of the retractable rubber plug 24 body, and second pressing blocks 45 are arranged at opposite positions on both sides; a second folding rod 46 is connected between the first pressing block 44 and the second pressing block 45, and a pulley is arranged at the folding point of the second folding rod 46 so that the two ends of the second folding rod 46 can rotate around the fixed pulley 47, so that one of the first pressing block 44 and the second pressing block 45 is extended and the other is retracted; the bottom of the first pressing block 44 is connected to the vertical rod 48 extending vertically into the rubber plug, and the second pressing block 45 is connected to the cross bar 49 extending horizontally into the retractable rubber plug 24, and the two sides of the retractable rubber plug 24 are respectively provided with a card block 50 that can be clamped on the retractable pull rod 26 at opposite positions, and one end of the vertical connecting rod 54 is connected to the cross bar 49 and the other end is connected to the card block 50 and the module 53 The movement of the cross bar 49 drives the module or the block 50 to move through the connecting rod 54; the bottom of the vertical rod 48 is provided with an insertion end which can be inserted between the two modules 53; when the first pressing block hits the top of the vacuum cylinder 17, it contracts and drives the vertical rod to move downward, and the insertion end of the vertical rod is inserted between the two modules 53 so that the block 50 extends and is stuck on the corresponding bayonet of the telescopic pull rod 26, so that the spring 1 43 in the telescopic pull rod 26 is fixed so that the length of the telescopic pull rod 26 is fixed; when the first pressing block contracts, the second pressing block 45 pops out at the same time, and when the second pressing block 45 moves to the opening of the vacuum cylinder 17, it is restricted and contracts, and the first pressing block 44 pops out at the same time, then the vertical rod 48 moves up so that the two modules 53 are close, the cross bar 49 contracts accordingly, and the block 50 is retracted, so that the spring 2 43 in the telescopic pull rod 26 is released, the telescopic pull rod 26 is extended, and the retractable rubber plug 24 returns to the top of the vacuum cylinder 17.

[0042] The power device 3 of the present invention includes a pulling motor 37 arranged in a box, a movable pulley 7 located below the sinking plate 11, and a chain 8 led out from the pulling motor 37 and wound around the movable pulley 7. One end of the chain 8 is fixed on the pulling motor 37, and the other end is wound into the pulling motor 37 to drive the movable pulley 7 to descend. Specifically, the pulling motor 37 simultaneously rolls in or releases the movable pulley chain 8 through two chain holes 36, so that the movable pulley chain 8 undergoes a large change in expansion and contraction, and the top of the movable pulley chain 8 is the movable pulley 7. A circle of balls 41 is provided on the inner ring of the movable pulley 7, and a first folding rod 38 is fixed between the center of the circle of balls 41 and the sinking plate 11, which can press the sinking plate 11 as the movable pulley 7 descends; the first folding rod 38 is connected to an alloy sheet 40, and the alloy sheet 40 is connected to the bottom of the sinking plate 11 through a bolt 40. Among them, the movable pulley chain 8 and the folding rod 38 are made of high-strength alloy and can withstand great tension. The tension motor 37 shortens the movable pulley chain 8 and causes the movable pulley 7 to drop. The drop of the movable pulley 7 will cause the settlement plate 11 to move downward through the first folding rod 38 and the alloy sheet 40. In this embodiment, movable pulleys 7 are specifically set at the four corners of the settlement plate 11, and movable pulley slideways are set vertically between the settlement plate 11 and the lower box body. The movable pulley is restricted to move in the movable pulley slideway to ensure that the settlement plate 11 can maintain a horizontal state when it drops, so that the soil is more evenly stressed. A 2.4G wireless remote control chip is placed inside the tension motor 37, and the loading tension is wirelessly controlled by the automatic control device. The automatic control device controls the tension of the chain on the tension motor 37 by controlling the tension motor 37, thereby controlling the loading tension. The chain 8 is provided with gear teeth, so that the displacement monitoring device can determine the displacement of the sinking plate by the number of chain gear teeth that the pulling motor is retracted into the device.

[0043] The heating system of the present invention includes a columnar shell 5 with openings at both ends and a top connected to the bottom of a settling plate 11, and a waterproof heater 6 is arranged in the columnar shell 5 and can freely expand and contract with the up and down movement of the settling plate 11. The waterproof heater 6 of this embodiment is a silicone heater made of silicone. The lower part of the settling plate 11 is connected to the silicone heater, and the exterior of the silicone heater is made of waterproof silicone to ensure that the device can prevent moisture from entering and causing danger when it increases the heat to the surrounding soil for effective heat transfer. A telescopic spring is provided inside the silicone heater, which can freely expand and contract with the up and down movement of the settling plate 11. When the settling plate 11 is compressed downward, the length of the silicone heater 6 can also shrink accordingly. The silicone heater 6 is located in the columnar shell 5 and is not squeezed by the soil; a 2.4G wireless remote control chip is placed inside the silicone heater 6, which is wirelessly controlled by an automatic control device.

[0044] The outside of the box is provided with a heating plate, which covers the outside of the box for external heating of the mud, and the solar panel covers the outside of the external heating plate for converting solar energy into electrical energy for the operation of the device. The external heating plate 3 covers the outside of the box, and heats the box from the outside. It cooperates with the internal waterproof heater 6 to make the soil heated more evenly, and also uses solar energy to power other devices in the box; a 2.4G wireless remote control chip is placed inside the external heating plate, which is wirelessly controlled by the automatic control device.

[0045] The displacement monitoring device of the present invention includes gear teeth on a chain. The displacement monitoring device determines the displacement of the settlement plate 11 by the number of gear teeth of the chain 8 that is retracted into the device by the tension motor 37, thereby calculating the depth of descent when consolidating the soil. A plurality of pore pressure and temperature integrated sensors 16 are evenly distributed in the middle of the box 1. The measured data are uploaded to the cloud platform in real time via 4G signals, and are used to measure the pore pressure and temperature of the soil at different positions in the box, thereby analyzing and controlling the test process and results.

[0046] The automatic control device 19 is fixed above the settlement plate 11 to control the entire device, thereby realizing the change of loading pressure during graded loading. The automatic control device 19 controls the pore pressure and temperature integrated sensor 16, the loading system and the heating system through the 2.4G wireless remote control chip. According to the real-time data uploaded to the cloud platform by the pore pressure and temperature integrated sensor 16, and the value automatically controlled or manually corrected according to the manually set threshold value, it is transmitted to the wireless remote control chip in the tension motor 37, the external heating plate and the waterproof heater 6 through the 2.4G wireless signal, thereby changing the soil loading intensity of the settlement plate 11 and the temperature setting of the waterproof heater 6 and the external heating plate, thereby controlling the loading intensity and temperature under different working conditions.

[0047] The columnar shell 5 of the present invention is filled with vertically arranged gravel (not shown in the figure), the top and bottom of the mud between the sedimentation plate 11 and the lower box are respectively filled with transversely arranged gravel (not shown in the figure), and the drainage system also includes a drainage channel formed by connecting the transversely arranged gravel and the vertically arranged gravel. After the mud is input from the feed port of the upper box, it is filled between the sedimentation plate 11 and the lower box. Before the mud is input, a layer of transversely arranged gravel is pre-laid on the bottom of the lower box. After the mud is input, a distance is reserved between the mud and the sedimentation plate 11, and another layer of transversely arranged gravel is laid between the top of the mud and the sedimentation plate 11. The movable pulley slideway and the hollow transmission rod 12 are used as drainage channels. Since the two ends of the columnar shell 5 are open, the vertically arranged gravel and the transversely arranged gravel are connected, and the movable pulley slideway and the hollow transmission rod 12 are used as drainage channels. Since the gravel is arranged in the columnar shell 5 and laid on the top and bottom of the soil to be consolidated, the pipes in the box can be connected to form a complete drainage system, so that the water discharged from the entire soil can be discharged from the suction device 14; a dense mesh structure that can move up and down is provided inside the hollow transmission rod 12, so that the silt can be cleaned out when the drainage channel is blocked by silt. The blade 10 of each tightening device 4 is connected to the lower end of a hollow transmission rod 12, and a slide groove is provided on the blade 10, which allows the hollow transmission rod 12 to move limitedly, so that each hollow transmission rod 12 can drive the tightening blade 10 to move, so that the tightening device 4 is tightened inward.

[0048] The settling plate 11 of the present invention is provided with a detachable feeding circular plate 20, which is connected to the settling plate 11 by a buckle 22. After the detachable feeding circular plate 20 is disassembled, a feeding port 21 is left. The detachable feeding circular plate 20 is provided with an automatic control device 19. The detachable feeding circular plate 20 can be moved out of the settling plate 11 during feeding. After being moved out, the soil enters the box from the circular feeding port 21 on the settling plate 11. An elastic base 18 is provided at the bottom of the box, and a discharge port 28 can be opened and closed on the elastic base 18. The elastic base 18 can avoid collision damage to the box during transportation. At the same time, when the soil is loaded into the box, the dead weight of the consolidated soil is converted into elastic potential energy. After consolidation is completed, the elastic potential energy is used to restore the tightening device 4 to its original state when the soil is removed.

[0049] The upper and lower parts of the box body of this embodiment are firmly connected by multiple straight fasteners 55. The box body is disassembled for transportation and firmly connected with fasteners during the consolidation test. A rubber waterproof belt is provided at the joint to ensure that the upper box body and the lower box body connected by the fasteners can be tightly connected and waterproof.

[0050] The interior of the box of this embodiment is covered with a waterproof coiled material, which can prevent errors caused by moisture being lost through the box during the test.

Claims

1. A thermal consolidation treatment device for waste mud, comprising a box body, the box body is provided with a mud feed inlet (21) and a mud discharge outlet after consolidation, characterized in that: The box body comprises a detachable upper box body (1) and a lower box body (2); a loading system, a heating system, a monitoring system, a drainage system, and an automatic control device are arranged in the box body; the loading system comprises a settling plate (11) arranged on the top of the upper box body (1) and movable up and down, a power device (3) for applying a vertical load to the settling plate (11), and a tightening device (4) arranged in the lower box body (2) and used to apply a circumferential load to the mud; the tightening device (4) comprises a plurality of tightening blades (10) which are arranged in an overlapping manner in sequence along the circumferential direction of the inner wall of the lower box body and can be tightened; a hollow transmission rod (12) is connected between the settling plate (11) and the tightening blade (10) and can push the blade (10) to tighten as the settling plate (11) descends, thereby applying a circumferential pressure to the mud; the drainage system comprises the following: The hollow transmission rod (12) is provided with a hole structure on the wall of the hollow transmission rod (12) for allowing liquid generated after mud compression to enter; a suction device (14) is connected between the tightening blade (10) and the wall of the lower box (2) and can extract air as the tightening blade (10) rotates; the bottom of the hollow transmission rod (12) is connected to the inside of the suction device (14) for discharging liquid in the hollow transmission rod (12); the heating system is fixed to the bottom of the settling plate (11); the monitoring system includes a displacement monitoring device for monitoring the downward displacement of the settling plate (11) and a plurality of pore pressure and temperature integrated sensors (16) for detecting the pore pressure and temperature of the mud; the automatic control device is used to control the operation of the loading system and the heating system according to the value change of the pore pressure and temperature integrated sensor (16).

2. The thermal consolidation treatment device for waste sludge according to claim 1, characterized in that: The power device (3) comprises a pulling motor (37) arranged in a box body, a movable pulley (7) located below the sedimentation plate (11), and a chain (8) drawn from the pulling motor (37) and wound around the movable pulley (7), one end of the chain (8) being fixed to the pulling motor (37) and the other end being wound into the pulling motor (37) so as to drive the movable pulley (7) to descend; a circle of balls (41) is arranged on the inner ring of the movable pulley (7), and a first folding rod (38) is fixed between the center of the circle of balls (41) and the sedimentation plate (11) and can descend with the movable pulley (7) to apply pressure to the sedimentation plate (11).

3. The thermal consolidation treatment device for waste sludge according to claim 2, characterized in that: A movable pulley slideway for vertical movement of the movable pulley is provided between the settlement plate (11) and the lower box; the displacement detection device includes gear teeth on the chain (8), and the displacement monitoring device determines the downward displacement of the settlement plate (11) by the number of chain gear teeth retracted into the device by the pulling motor (37).

4. The thermal consolidation treatment device for waste sludge according to claim 1, characterized in that: The suction device (14) comprises a vacuum cylinder (17) whose top is connected to the bottom of the hollow transmission rod (12) and fixed on the tightening blade (10), and a retractable pull rod (26) whose one end is fixed to the inner wall of the lower box body and whose other end extends from the opening end of the vacuum cylinder (17); a retractable rubber plug (24) is fixed to the end of the retractable pull rod (26) located in the vacuum cylinder (17); the retractable pull rod (26) has a plurality of pairs of bayonet holes for matching the bayonet blocks arranged vertically; the retractable pull rod (26) ) is provided with a pipe (41) connected to the outside; the vacuum cylinder (17) moves in a direction away from the telescopic rod (26) as the screwing blade (10) is tightened, and when the retractable rubber plug (24) reaches the opening of the vacuum cylinder (17), the telescopic rod (26) is extended to reset the retractable rubber plug (24) to the top of the vacuum cylinder (17), so that the telescopic rod (26) performs piston movement in the vacuum cylinder (17) to discharge the liquid from the hollow transmission rod (12).

5. The thermal consolidation treatment device for waste sludge according to claim 4, characterized in that: A spring (43) is provided inside the retractable pull rod (26), and the top of the spring (43) is connected to the retractable rubber plug (24); a first pressing block (44) is provided on the top of the retractable rubber plug (24), and second pressing blocks (45) are provided at opposite positions on both sides; a second folding rod (46) is connected between the first pressing block (44) and the second pressing block (45), and a pulley is provided at the folding point of the second folding rod (46) so that the two ends of the second folding rod (46) can rotate around a fixed pulley (47), so that one of the first pressing block (44) and the second pressing block (45) is extended and the other is retracted; the first pressing block (44) and the second pressing block (45) are respectively connected to each other. The bottom of the block (44) is connected to a vertical rod (48) vertically extending into the rubber plug (24), the second pressing block (45) is connected to a horizontal rod (49) extending into the rubber plug (24) laterally, and blocks (50) that can be clamped on the retractable pull rod (26) are respectively provided at opposite positions on both sides of the retractable rubber plug (24), one end of the vertical connecting rod (54) is connected to the horizontal rod (49) and the other end is connected between the block (50) and the module (53), so that the movement of the horizontal rod (49) drives the module or the block (50) to move through the connecting rod (54); the bottom of the vertical rod (48) is provided with an insertion end that can be inserted between two modules (53); When the first pressing block hits the top of the vacuum cylinder (17), it contracts and drives the vertical rod to move downward, and the insertion end of the vertical rod is inserted between the two modules (53), so that the clamping block (50) extends out and is clamped in the corresponding clamping hole of the telescopic pull rod (26), so that the spring 1 (43) in the telescopic pull rod (26) is fixed, thereby fixing the length of the telescopic pull rod (26); When the first pressing block contracts, the second pressing block (45) pops out at the same time. When the second pressing block (45) moves to the opening of the vacuum cylinder (17), it is restricted and contracts, causing the first pressing block (44) to pop out. Then, the vertical rod (48) moves upward to bring the two modules (53) closer together, and the horizontal rod (49) contracts accordingly. The clamping block (50) is retracted, which releases the spring 1 (43), and the retractable pull rod (26) extends, causing the retractable rubber plug (24) to return to the top of the vacuum cylinder (17).

6. The thermal consolidation treatment device for waste sludge according to claim 1, characterized in that: The outer wall of the tightening blade (10) is provided with a transmission rod sliding groove (13), the bottom of the hollow transmission rod (12) extends into the transmission rod sliding groove (13) and can move from one side to the other side in the transmission rod sliding groove (13) as the settling plate (11) descends, thereby pushing the tightening blade (10) to tighten.

7. The thermal consolidation treatment device for waste sludge according to claim 1, characterized in that: The bottom of the box body is located below the tightening blade (10) and is provided with a blade slideway (32) for the tightening blade (10) to slide during the tightening process; the blade slideway (32) is provided with a fixed end and a movable end, the fixed end is fixed to the bottom of the box body, and the movable end is connected to the bottom of the box body through a second spring (34); when the tightening blade (10) is tightened, the movable end can rotate around the fixed end.

8. The thermal consolidation treatment device for waste sludge according to claim 1, characterized in that: The heating system comprises a columnar shell (5) with openings at both ends and a top connected to the bottom of a settling plate (11), and a waterproof heater (6) arranged in the columnar shell (5) and capable of freely extending and retracting as the settling plate (11) moves up and down.

9. The thermal consolidation treatment device for waste sludge according to claim 8, characterized in that: The columnar shell (5) is filled with vertically arranged gravel, the top and bottom of the mud between the settling plate (11) and the lower box are respectively filled with transversely arranged gravel, and the drainage system also includes a drainage channel formed by connecting the transversely arranged gravel and the vertically arranged gravel.

10. The thermal consolidation treatment device for waste sludge according to claim 1, characterized in that: An elastic base (18) is provided at the bottom of the lower box body, and a discharge port (28) is openably and closably arranged on the elastic base (18).

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