Slurry recovery equipment for constructional engineering

Abstract

The invention relates to the technical field of constructional engineering, and discloses constructional engineering slurry recovery equipment which comprises a frame. A plate body; a classification box; the treatment device is used for performing multi-stage automatic treatment on the slurry; and the driving mechanism is used for driving the processing device to operate. According to the slurry recovery equipment for constructional engineering, through the arranged treatment device, extrusion type dehydration separation can be conducted on slurry in foundation construction or other constructional engineering, the used slurry is fully utilized and recycled, and water resources are saved. By means of a self-discharging assembly in the treatment device, impurities can be automatically pulled out when being extruded, manual treatment is not needed, the impurities with different particle sizes can be extruded, classified and discharged by means of a multi-stage filter screen, manual re-sorting and re-treatment are not needed, the overall treatment efficiency of the slurry is improved, and the practicability is high. And meanwhile, impurity gravel in the slurry can be classified and recycled, and a certain recycling effect on the building slurry is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, in particular to mud recovery equipment for construction engineering. Background Art

[0002] Construction engineering is one of the basic industries of my country's national economy. It is also an industrial sector with large water consumption and high potential threat to the ecological environment. Therefore, the comprehensive management of mud has practical and far-reaching significance for humans, resources and the environment. The mud recovery system is a kind of equipment and technology specially used for mud treatment in foundation construction or other projects. It can achieve resource recovery and waste reduction by separating solid particles in mud.

[0003] At present, the following problems exist in the application of mud recovery systems: First, the system only performs preliminary separation treatment on the waste slurry, and directly discards the sand and gravel particles and building stones in the waste slurry, resulting in a waste of resources; second, the accumulation of unseparated solid waste may cause pollution to the surrounding environment and requires irregular cleaning, which increases maintenance costs. At the same time, most current mud recovery systems use a crude single-stage filtration method and cannot achieve multi-stage classification processing, resulting in insufficient separation accuracy, and the separated solid impurities still need to be manually classified and processed, reducing the overall processing efficiency. Therefore, it is necessary to develop an efficient mud recovery equipment to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a mud recovery device for construction engineering, which solves the problems of resource waste, environmental pollution and inefficient treatment in the current mud recovery system.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mud recovery equipment for construction engineering, comprising a frame; a plate body; a grading box; a processing device for performing multi-stage automatic processing of mud; a driving mechanism for driving the operation of the processing device; the processing device comprises an extrusion component, a vibration component and a self-discharge component; three grading boxes are provided, and the three grading boxes are respectively provided with a first filter screen, a second filter screen and a third filter screen from top to bottom, three connecting plates are connected to the plate body, and the first filter screen, the second filter screen and the third filter screen are respectively slidably connected to the three connecting plates.

[0006] Preferably, the extrusion assembly includes a driving shaft, both ends of the driving shaft are rotatably connected to the frame, the driving shaft is connected to a rotating frame, both ends of the rotating frame are rotatably connected to connecting rod 1 and connecting rod 2 respectively, one end of the connecting rod 1 is rotatably connected to side plate 1, the side plate 1 is connected to a sliding rod, one end of the connecting rod 2 is rotatably connected to side plate 2, the side plate 2 is connected to two sliding columns, the sliding rod and the sliding column are both slidably connected to the frame, one end of the sliding rod is connected to pressure plate 2, one end of the sliding column is connected to pressure plate 1, and pressure plates 1 and 2 are slidably connected to the bottom of the grading box.

[0007] Preferably, the self-discharge assembly includes a rotating plate, which is rotatably connected to the second pressure plate, and a left rod sleeve is rotatably connected to the rotating plate, one end of the left rod sleeve is slidably connected to the right rod sleeve through a sliding connecting rod, one end of the right rod sleeve is rotatably connected to the second pressure plate, one side of the connecting plate is connected to a discharge rack, the surface of the sliding connecting rod is sleeved with a compression spring, one end of the compression spring is connected to the left rod sleeve, and the other end of the compression spring is connected to the right rod sleeve.

[0008] Preferably, the vibration assembly includes a power rod and a transmission rod, and the power rod and the transmission rod are both rotatably connected to the frame. Two small cams are connected to the power rod and the transmission rod, and the small cams are located below the first filter. One end of the power rod is connected to a second gear, and the second gear is connected to the driving mechanism.

[0009] Preferably, the power rod is connected with a pulley 1, the pulley 1 is connected to a pulley 2 via a belt, and the pulley 2 is installed on the transmission rod.

[0010] Preferably, four rollers are connected to the bottom of the first filter screen, and the surfaces of the rollers are in contact with the surface of the small cam.

[0011] Preferably, the driving mechanism includes a driving motor, a connecting shaft is connected to the output shaft of the driving motor, a large cam is connected to the connecting shaft, the surface of the large cam is in contact with a mating sleeve, the mating sleeve is connected to the bottom of the rotating frame through the shaft, and the side plate one and the side plate two are elastically connected by a reset spring.

[0012] Preferably, the connecting shaft is connected to a first gear, and a surface of the first gear meshes with a surface of the second gear.

[0013] Preferably, it also includes a quantitative feeding mechanism, which includes a feed box, which is installed on a frame and a plate body, and a partition is slidably connected to the bottom of the feed box, and the partition is slidably connected to the frame and the plate body, one side of the partition is connected to a connecting support rod, and an adjusting rod is threadedly connected to the connecting support rod, and the adjusting rod is rotatably connected to the driving shaft, a discharge port is provided at the bottom of the feed box, and a feed port is provided on the partition.

[0014] Compared with the prior art, the present invention provides a mud recovery device for construction engineering, which has the following beneficial effects: 1. The mud recovery equipment for construction projects can perform extrusion dehydration and separation on the mud in foundation construction or other construction projects through the processing device, making full use of the recycled used mud and saving water resources. And through the self-draining component inside the processing device, it can automatically pull out the impurities when squeezing them, without manual processing. By using the multi-layer filter screen, it can squeeze and classify the impurities of different particle sizes, without manual re-sorting and re-processing, improving the efficiency of the overall mud processing. At the same time, the impurities and sand in the mud can also be classified and recycled, which has a certain recycling effect on the construction mud.

[0015] 2. The mud recovery equipment for construction projects can vibrate the filter screen through the vibration component, so as to maximize the separation of mud on the sand and gravel during the vibration process, thereby improving the effect of mud treatment.

[0016] 3. The mud recovery equipment for construction projects can realize the quantitative input of mud impurities through the quantitative feeding mechanism, avoiding the situation where the mud impurity treatment effect is reduced due to excessive one-time feeding, and at the same time, it can also increase the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a mud recovery device for construction engineering proposed by the present invention; Figure 2 This is a schematic diagram of the structure of an extrusion assembly of a mud recovery device for construction engineering proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a self-draining component of a mud recovery device for construction engineering proposed by the present invention; Figure 4 This is a schematic diagram of the connection structure of the driving mechanism and processing device of a mud recovery device for construction engineering proposed by the present invention; Figure 5 A schematic diagram of the connection of the vibration components of a mud recovery equipment structure for construction engineering proposed by the present invention; Figure 6This is a schematic diagram of the structure of a vibration assembly of a mud recovery device for construction engineering proposed by the present invention from a bottom view; Figure 7 A schematic diagram of the connection structure of a grading box and a filter screen of a mud recovery device for construction engineering proposed by the present invention; Figure 8 This is a schematic diagram of a quantitative feeding mechanism of a mud recovery device for construction engineering proposed by the present invention.

[0018] In the figure: 1, frame; 2, quantitative feeding mechanism; 201, feeding box; 202, partition; 203, connecting rod; 204, adjusting rod; 205, discharge port; 206, feeding port; 3, plate; 4, grading box; 401, first filter; 402, second filter; 403, third filter; 5, driving mechanism; 501, driving motor; 502, large cam; 503, connecting shaft; 504, matching sleeve; 505, first gear; 506, reset spring; 6, processing device; 601, driving shaft; 602 , rotating frame; 603, connecting rod one; 604, connecting rod two; 605, side plate one; 606, side plate two; 607, sliding rod; 608, sliding column; 609, pressing plate one; 610, pressing plate two; 611, rotating plate; 612, right rod sleeve; 613, unloading frame; 614, left rod sleeve; 615, compression spring; 616, sliding connecting rod; 617, power rod; 618, small cam; 619, roller; 620, pulley one; 621, transmission rod; 622, pulley two; 623, second gear; 7, connecting plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-8 , a mud recovery device for construction engineering, comprising a frame 1; the frame 1 is fixedly connected to a plate 3; a grading box 4 is installed on the plate 3 through a connecting piece; three grading boxes 4 are provided, and the three grading boxes 4 are respectively provided with a first filter screen 401, a second filter screen 402 and a third filter screen 403 from top to bottom, three connecting plates 7 are connected to the plate 3, and the first filter screen 401, the second filter screen 402 and the third filter screen 403 are respectively slidably connected to the three connecting plates 7, please refer to Figure 7Because when the three filter screens vibrate, the connecting plate 7 will directly limit them to vibrate and slide only in the upper and lower positions. By using multi-layer filter screens, impurities of different particle sizes can be squeezed and classified for discharge without manual re-sorting and reprocessing, thereby improving the overall processing efficiency of the mud. At the same time, the impurities and sand in the mud can also be classified and recycled, which has a certain recycling effect.

[0021] In this embodiment, the processing device 6 is used to perform multi-stage automatic processing on the mud; the processing device 6 includes an extrusion component, a vibration component and a self-discharging component; See also Figure 2 The extrusion assembly includes a driving shaft 601, both ends of the driving shaft 601 are rotatably connected to the frame body 1, the driving shaft 601 is connected to a rotating frame 602, both ends of the rotating frame 602 are rotatably connected to a connecting rod 1 603 and a connecting rod 2 604, one end of the connecting rod 1 603 is rotatably connected to a side plate 1 605, the side plate 1 605 is connected to a sliding rod 607, one end of the connecting rod 2 604 is rotatably connected to a side plate 2 606, the side plate 2 606 is connected to two sliding columns 608, the sliding rod 607 and the sliding column 608 are both slidably connected to the frame body 1, one end of the sliding rod 607 is connected to a pressing plate 2 610, one end of the sliding column 608 is connected to a pressing plate 1 609, and the pressing plates 1 609 and 610 are slidably connected to the bottom of the grading box 4. When the driving motor 501 rotates, it will drive the rotation of the connecting shaft 503, and the rotation of the connecting shaft 503 will drive the rotation of the large cam 502. The large cam 502 contacts and slides with the surface of the matching sleeve 504, so when the large cam 502 rotates, the rotation and swing of the rotating frame 602 will be driven through the transmission of the matching sleeve 504. When the rotating frame 602 rotates, the side plate 1 605 and the side plate 2 606 on the two connecting rods will move relative to each other, and the side plate 1 605 and the side plate 2 606 will drive the pressure plate 1 609 and the pressure plate 2 610 to move relative to each other through the sliding rod 607 and the sliding column 608, thereby forming relative extrusion. After the two pressure plates move relative to each other, the impurities inside the grading box 4 will be squeezed, thereby separating the impurity slurry inside.

[0022] See also Figure 3The self-discharging assembly includes a rotating plate 611, which is rotatably connected to the second pressing plate 610, and a left rod sleeve 614 is rotatably connected to the rotating plate 611. One end of the left rod sleeve 614 is slidably connected to the right rod sleeve 612 through a sliding connecting rod 616, and one end of the right rod sleeve 612 is rotatably connected to the second pressing plate 610. A discharging rack 613 is connected to one side of the connecting plate 7, and a compression spring 615 is sleeved on the surface of the sliding connecting rod 616. The compression spring 615 is also an extrusion damping. When the water content inside the extruded object is low and the extrusion degree is low, at this time, as impurities accumulate, they will definitely drive the rotation of the rotating plate 611 during the extrusion process, so that it is pushed into the right side of the rotating plate 611 and finally automatically discharged. One end of the compression spring 615 is connected to the left rod sleeve 614, and the other end of the compression spring 615 is connected to the right rod sleeve 612. Because the sand and gravel solids cannot be squeezed, the rotating plate 611 will rotate due to the squeezing resistance, thereby driving the left rod sleeve 614 to squeeze the compression spring 615, so an opening position will be formed on the second pressure plate 610 at this time. With the squeezing, the first pressure plate 609 will first push the impurities to the right side of the rotating plate 611, and separate from between the first pressure plate 609 and the second pressure plate 610. Then, with the elastic force of the return spring 506, the second pressure plate 610 and the first pressure plate 609 are controlled to open. At this time, the second pressure plate 610 will push the impurity particles on its right side to be discharged from the position of the discharge rack 613.

[0023] Also, see Figure 5 and Figure 6 The vibration assembly includes a power rod 617 and a transmission rod 621, which are both rotatably connected to the frame 1. Two small cams 618 are connected to the power rod 617 and the transmission rod 621, and the small cams 618 are located below the first filter 401. One end of the power rod 617 is connected to a second gear 623, and the second gear 623 is connected to the driving mechanism 5. Through the meshing of the bevel gears, the power rod 617 is driven to rotate. When the power rod 617 rotates, the transmission rod 621 is driven to rotate through the transmission between the belts, so at this time, the multiple small cams 618 on the two rod bodies will also rotate synchronously, and the small cams 618 will contact and abut the bottom of the filter, so at this time, the small cams 618 will drive the first filter 401 to shake up and down in a small amplitude in the connecting plate 7, so that the mud attached to the impurities and gravel is shaken off and falls from the filter.

[0024] In addition, see Figure 5, a pulley 1 620 is connected to the power rod 617, and the pulley 1 620 is connected to the pulley 2 622 through a belt, and the pulley 2 622 is installed on the transmission rod 621. By setting a belt transmission method, the power rod 617 and the transmission rod 621 can be rotated synchronously, thereby driving the rotation of the small cam 618 to achieve synchronous rotation, and finally the filter screen is shaken. Four rollers 619 are connected to the bottom of the first filter screen 401, and the surface of the roller 619 is in contact with the surface of the small cam 618. By setting four rollers 619, when the small cam 618 rotates, it will always be in contact with the four rollers 619, and will not directly contact the bottom of the filter screen, which can reduce the rotation friction of the small cam 618, improve the stability of the shake, and at the same time increase the service life of the equipment.

[0025] For further information, see Figure 4-Figure 5 The driving mechanism 5 includes a driving motor 501, and a connecting shaft 503 is connected to the output shaft of the driving motor 501. A large cam 502 is connected to the connecting shaft 503. The surface of the large cam 502 contacts and abuts against a matching sleeve 504. The matching sleeve 504 is connected to the bottom of the rotating frame 602 through the shaft. When the driving motor 501 rotates, it will drive the connecting shaft 503 to rotate, and the rotation of the connecting shaft 503 will drive the large cam 502 to rotate. The large cam 502 and the matching sleeve 504 are in contact with each other. 04's surface is in contact and sliding, so when the large cam 502 rotates, the transmission of the matching shaft sleeve 504 will drive the rotating frame 602 to rotate and swing, and the rotation of the rotating frame 602 will drive the operation of the extrusion assembly, thereby realizing the extrusion and dehydration of impurities. The side plate 1 605 and the side plate 2 606 are elastically connected by the reset spring 506. The reset spring 506 will provide a telescopic elastic force to control the two pressure plates to reset, so that the matching shaft sleeve 504 always forms a contact state with the large cam 502. The first gear 505 is connected to the connecting shaft 503, and the surface of the first gear 505 is meshed with the surface of the second gear 623. The power will be transmitted to the vibration assembly through the first gear 505, and the operation of the vibration assembly will be controlled by the transmission between the gears.

[0026] It is worth noting that see Figure 8, also includes a quantitative feeding mechanism 2, the quantitative feeding mechanism 2 includes a feeding box 201, the feeding box 201 is installed on the frame 1 and the plate body 3, the bottom of the feeding box 201 is slidably connected with a partition 202, the partition 202 is slidably connected to the frame 1 and the plate body 3, one side of the partition 202 is connected with a connecting rod 203, and the connecting rod 203 is threadedly connected with an adjusting rod 204. The setting of the adjusting rod 204 can control the overlap degree of the feed port 206 and the discharge port 205 on the partition 202, because when the adjusting rod 204 is rotated, the distance between the connecting rod 203 and the drive shaft 601 will become longer or shorter, so when the drive shaft 601 swings, the length of the partition 202 pulled to slide will change, so the overlap degree of the feed port 206 and the discharge port 205 will change, and finally the diameter of the flow channel of the feeding box 201 will change, so at this time, the flow rate of each quantitative input can be changed according to the actual mud treatment degree. The adjusting rod 204 is rotatably connected to the driving shaft 601, and a discharge port 205 is provided at the bottom of the feed box 201, and a feed port 206 is provided on the partition 202. Considering that too much mud impurities are taken into the device at one time, causing overload and extrusion of the device, a quantitative feeding mechanism 2 is set. When the driving shaft 601 swings, the connecting rod 203 will be driven to move through the adjusting rod 204, thereby pulling the partition 202 to slide in the frame 1 and the plate body 3. When the partition 202 is pulled to the leftmost side, the discharge port 205 will be located at the bottom left side of the discharge port 205. When the partition 202 moves right to the maximum position, the feed port 206 and the discharge port 205 will overlap, thereby forming a circulation channel, and the mixture of mud and impurities in the feed box 201 will flow downward quantitatively from the channel.

[0027] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0028] Working principle: first, the mud needs to be discharged into the interior of the feed box 201. When the discharge port 205 and the feed port 206 at the bottom overlap, the mud will flow into the uppermost grading box 4. Then, the mud is filtered by the first filter screen 401 and flows into the grading box 4 of the second filter screen 402. Similarly, it flows into the grading box 4 at the bottom. The apertures of the three filters are different each time, so as to classify impurities of different particle sizes. When the driving motor 501 rotates, it will drive the rotation of the connecting shaft 503, and the rotation of the connecting shaft 503 will drive the rotation of the large cam 502. The large cam 502 contacts and slides with the surface of the matching sleeve 504, so when the large cam 502 rotates, the transmission of the matching sleeve 504 will drive the rotation and swing of the rotating frame 602. When the rotating frame 602 rotates, the side plates 1 605 and 606 on the two connecting rods will move relative to each other, and the side plates 1 605 and 606 will drive the pressure plates 1 609 and 610 to move relative to each other through the sliding rod 607 and the sliding column 608, thereby forming relative extrusion. After the two pressure plates move relative to each other, the impurities inside the grading box 4 will be squeezed, thereby separating the impurity slurry inside. If the The impurities are sand and gravel impurities. When squeezed at this time, when this kind of impurities cannot be squeezed, they will feed back the force to the rotating plate 611. Because the sand and gravel solids cannot be squeezed, the rotating plate 611 will rotate due to the extrusion resistance, thereby driving the left rod sleeve 614 to squeeze the compression spring 615. Therefore, an opening position will be formed on the second pressure plate 610 at this time. With the extrusion, the first pressure plate 609 will push the impurities to the right side of the rotating plate 611 and disengage from between the first pressure plate 609 and the second pressure plate 610. Then, as the large cam 502 continues to rotate, the convex point position disengages from the matching shaft sleeve 504. At this time, the reset spring 506 will provide a telescopic elastic force to control the two pressure plates to reset, so that the matching shaft sleeve 504 is always in contact with the large cam 502. In this technical solution, the large cam 502 is set on the left side of the matching sleeve 504. The operator places it according to the actual installation position. If it is on the right side, it is squeezed by the spring force. The rotation of the large cam 502 controls the pressure plate 1 609 and the pressure plate 2 610 to open, so as to push the impurities on the right side of the rotating plate 611, and then push the impurities to the top of the first filter screen 401 and discharge them from the position of the discharge rack 613. The second filter screen 402 and the third filter screen 403 are both synchronously provided with this device. Therefore, at this time, impurities of different particle sizes will be automatically discharged from the positions of multiple discharge racks 613, thereby realizing classified automatic discharge, solving the problem that impurities are mixed together during sewage treatment, resulting in ineffective utilization. The mud after passing through the third filter screen 403 will flow out from the position of the water flow rack, and the operator can drain it and drain it to a fixed position for collection or collect it in a fixed device.At the same time, during the rotation of the connecting shaft 503, the first gear 505 will be driven to rotate, and through the meshing of the bevel gear, the power rod 617 will be driven to rotate. When the power rod 617 rotates, it will drive the transmission rod 621 to rotate through the transmission between the belts. Therefore, at this time, the multiple small cams 618 on the two rod bodies will also rotate synchronously, and the small cams 618 will contact and abut with the bottom of the filter screen. Therefore, at this time, the small cams 618 will drive the first filter screen 401 to shake up and down in a small amplitude in the connecting plate 7, so that the mud attached to the impurity gravel will be shaken off and fall from the filter screen. It may be considered that when the filter screen shakes, the extrusion process of impurities will interfere with the filter screen. Therefore, in this technical solution, when the filter screen is lower than the bottom position of the pressure plate 1 609 and the pressure plate 2 610, there is a certain height difference between the two, so it will not interfere with the extrusion process during the shaking process. Finally, the vibration method is used to improve the effect of mud collection and recovery. At the same time, considering that excessive intake of mud impurities at one time makes it difficult to recover, a quantitative feeding mechanism 2 is set up. When the driving shaft 601 swings, the connecting support rod 203 will be driven to move through the adjusting rod 204, thereby pulling the partition 202 to slide in the frame 1 and the plate body 3. When the partition 202 is pulled to the leftmost side, the discharge port 205 will be located at the left bottom position of the discharge port 205. When the partition 202 moves to the maximum right position, the feed port 206 and the discharge port 205 will overlap to form a circulation channel. At this time, the mixture of mud and impurities in the feed box 201 will be quantitatively fed downward from the channel. Therefore, with the sliding of the partition 202 left and right, the quantitative feeding of mud impurities in each cycle can be achieved, thereby avoiding the situation where too much mud impurities are fed at one time, the extrusion resistance is too large, and the dehydration effect is reduced, and the overall service life of the equipment is also improved.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A mud recovery device for construction engineering, characterized in that: include Frame (1); Plate(3); Classification Boxes (4); A processing device (6) for automatically processing the mud in multiple stages; A driving mechanism (5) for driving the processing device (6) to operate; The processing device (6) comprises an extrusion component, a vibration component and a self-discharging component; The grading boxes (4) are provided with three, and the three grading boxes (4) are provided with a first filter screen (401), a second filter screen (402) and a third filter screen (403) from top to bottom, respectively; the plate body (3) is connected with three connecting plates (7); the first filter screen (401), the second filter screen (402) and the third filter screen (403) are slidably connected to the three connecting plates (7), respectively.

2. A construction engineering mud recovery device according to claim 1, characterized in that: The extrusion assembly comprises a drive shaft (601), both ends of the drive shaft (601) are rotatably connected to a frame body (1), the drive shaft (601) is connected to a rotating frame (602), both ends of the rotating frame (602) are rotatably connected to a connecting rod 1 (603) and a connecting rod 2 (604), one end of the connecting rod 1 (603) is rotatably connected to a side plate 1 (605), the side plate 1 (605) is connected to a sliding rod (607), and the connecting rod 2 One end of (604) is rotatably connected to a second side plate (606), and two sliding columns (608) are connected to the second side plate (606). The sliding rod (607) and the sliding column (608) are both slidably connected to the frame (1). One end of the sliding rod (607) is connected to a second pressing plate (610), and one end of the sliding column (608) is connected to a first pressing plate (609). The first pressing plate (609) and the second pressing plate (610) are slidably connected to the bottom of the grading box (4).

3. A construction engineering mud recovery device according to claim 2, characterized in that: The self-discharging assembly comprises a rotating plate (611), the rotating plate (611) is rotatably connected to the second pressing plate (610), a left rod sleeve (614) is rotatably connected to the rotating plate (611), one end of the left rod sleeve (614) is slidably connected to the right rod sleeve (612) via a sliding connecting rod (616), one end of the right rod sleeve (612) is rotatably connected to the second pressing plate (610), one side of the connecting plate (7) is connected to a discharging rack (613), a compression spring (615) is sleeved on the surface of the sliding connecting rod (616), one end of the compression spring (615) is connected to the left rod sleeve (614), and the other end of the compression spring (615) is connected to the right rod sleeve (612).

4. A construction engineering mud recovery device according to claim 3, characterized in that: The vibration assembly comprises a power rod (617) and a transmission rod (621), the power rod (617) and the transmission rod (621) are both rotatably connected to the frame (1), the power rod (617) and the transmission rod (621) are both connected to two small cams (618), the small cams (618) are located below the first filter screen (401), one end of the power rod (617) is connected to a second gear (623), and the second gear (623) is connected to the driving mechanism (5).

5. A construction engineering mud recovery device according to claim 4, characterized in that: The power rod (617) is connected to a pulley 1 (620), the pulley 1 (620) is connected to a pulley 2 (622) via a belt, and the pulley 2 (622) is mounted on a transmission rod (621).

6. A construction engineering mud recovery device according to claim 4, characterized in that: Four rollers (619) are connected to the bottom of the first filter screen (401), and the surfaces of the rollers (619) are in contact with the surface of the small cam (618).

7. A construction engineering mud recovery device according to claim 5, characterized in that: The driving mechanism (5) comprises a driving motor (501), the output shaft of the driving motor (501) is connected to a connecting shaft (503), the connecting shaft (503) is connected to a large cam (502), the surface of the large cam (502) is in contact with a matching shaft sleeve (504), the matching shaft sleeve (504) is connected to the bottom of the rotating frame (602) via the shaft, and the side plate 1 (605) and the side plate 2 (606) are elastically connected via a return spring (506).

8. A construction engineering mud recovery device according to claim 7, characterized in that: The connecting shaft (503) is connected to a first gear (505), and a surface of the first gear (505) and a surface of the second gear (623) are meshed with each other.

9. A construction engineering mud recovery device according to claim 2, characterized in that: The invention also comprises a quantitative feeding mechanism (2), wherein the quantitative feeding mechanism (2) comprises a feeding box (201), wherein the feeding box (201) is mounted on a frame (1) and a plate (3), wherein a partition (202) is slidably connected to the frame (1) and the plate (3), wherein one side of the partition (202) is connected to a connecting rod (203), wherein an adjusting rod (204) is threadedly connected to the connecting rod (203), wherein the adjusting rod (204) is rotatably connected to a driving shaft (601), wherein a discharge port (205) is provided at the bottom of the feeding box (201), and a feeding port (206) is provided on the partition (202).

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