CN-118547539-B - Soft soil roadbed backfill recycling integrated treatment device

CN118547539BCN 118547539 BCN118547539 BCN 118547539BCN-118547539-B

Abstract

The invention discloses an integrated treatment device for recycling soft soil roadbed backfill, which comprises a bearing frame, and a mixing bin, a control mechanism and a propelling mechanism on the bearing frame, wherein one end of the mixing bin is provided with a mixing mechanism, the mixing mechanism is provided with a crushing mechanism, the propelling mechanism is arranged at the other end of the mixing bin, the control mechanism is arranged between the propelling mechanism and the mixing mechanism, the mixing bin is internally provided with the stirring mechanism, soft soil firstly enters the crushing mechanism to crush large stone materials mixed in the soft soil, then enters the mixing mechanism to add a curing agent to perform primary mixing, then enters the stirring mechanism to perform deep stirring, and then performs secondary feeding and stirring propelling mixing. According to the invention, stone blocks mixed in the soil can be crushed by the crushing mechanism to meet the mixing and stirring requirements, and the soil and the curing agent can be smoothly stirred by the subsequent mixing and stirring mechanism, the stirring mechanism and the propelling mechanism, so that the soil and the curing agent are uniformly mixed, and finally the supporting strength of the stone blocks is improved and ensured after backfilling.

Inventors

WANG YANGMING
LIU LEI
GAO PENGFEI
Tian Juwen
LIU JUN
HU XIAODONG
HAN SHUYOU
GUO CHUNQIANG
LIU JINBAO
XU JINFEI
BAI JUNSHENG

Assignees

临沂市政集团有限公司

Dates

Publication Date: 20260508
Application Date: 20240613

Claims (7)

1. The integrated treatment device for recycling the soft soil roadbed backfill comprises a bearing frame, and a mixing bin, a control mechanism and a propelling mechanism on the bearing frame, and is characterized in that one end of the mixing bin is provided with a mixing mechanism, a crushing mechanism is arranged on the mixing mechanism, the propelling mechanism is arranged at the other end of the mixing bin, the control mechanism is arranged between the propelling mechanism and the mixing mechanism, and the mixing bin is internally provided with the stirring mechanism; The device comprises a bearing frame, a first support and a second support, wherein one end of the first support is provided with a supporting shaft, the supporting shaft is inserted into the second support, the first support can slide along the supporting shaft to adjust the length of the bearing frame so as to adapt to the use requirement of a construction site, one end of the bearing frame is provided with a traction arm for connecting an external tractor, a buffer bin and a stirring bin are arranged in the mixing bin, the stirring bin is provided with a pair of stirring bins and is respectively arranged at two sides of the buffer bin, the bottom of the buffer bin is obliquely arranged, and one end of the buffer bin is provided with a sludge pump; The crushing mechanism comprises a tank body, a feeding hole is formed in the top of the tank body, a distributing disc, a bearing frame, a crushing disc and a second motor are arranged in the tank body, the bearing frame is fixedly connected with the inner wall of the tank body, the second motor is fixed on the bearing frame, an eccentric wheel is arranged on an output shaft of the second motor, the crushing disc is arranged on the bearing frame, a convex block is arranged on the periphery of the crushing disc, an adjusting hole is formed in the center of the crushing disc, the eccentric wheel is arranged in the adjusting hole, the distributing disc is arranged on the crushing disc, and the distributing disc is fixedly connected with the end part of the output shaft of the second motor.
2. The integrated treatment device for recycling soft soil roadbed backfill according to claim 1, wherein the mixing and stirring mechanism comprises a first box body, the top of the first box body is communicated with a tank body, a first guide plate is arranged at the top of the first box body, a second guide plate is arranged below the first guide plate, a U-shaped shell is arranged below the second guide plate, a bottom plate is arranged below the U-shaped shell, third guide plates are arranged on two sides of the bottom plate, and the two ends of the first guide plate, the second guide plate, the third guide plate, the U-shaped shell and the bottom plate are fixedly connected with the inner wall of the first box body; The inner walls of the two sides of the U-shaped shell are provided with a first sealing plate and a second sealing plate which are mutually spliced, a first spring is arranged in the first sealing plate, one side of the second sealing plate is provided with an adjusting shaft, the adjusting shaft is in sliding connection with the bottom plate, and the end part of the adjusting shaft is provided with a sphere; the U-shaped shell, the second sealing plate and the bottom plate form a box body for containing curing agent, and a feeding pipe is arranged at one side of the first box body and used for adding the curing agent; The first motor output shaft is connected with a main shaft, the main shaft is arranged in a protective shell and is connected with each other in a rotating mode, the main shaft is hollow, through grooves are formed in the main shaft, first electric push rods are arranged in the hollow of the main shaft, first connecting arms which are uniformly distributed are arranged on the main shaft, first supporting blocks are arranged at the ends of the first connecting arms, second supporting blocks are arranged between the adjacent first supporting blocks, second connecting arms are arranged on the second supporting blocks and are arranged in the through grooves and are fixedly connected with the top shafts of the first electric push rods, partition plates are arranged in the second supporting blocks in a hollow mode, third supporting blocks are arranged on two sides of the second supporting blocks, the third supporting blocks are hollow and are inserted into the second supporting blocks in an inserting mode, and second springs are arranged in the third supporting blocks and contact with the partition plates in a propping mode.
3. The integrated treatment device for soft soil roadbed backfill recycling according to claim 2, wherein a water tank is arranged on one side of the first box body, spray pipes are arranged on two sides of the second guide plate, the spray pipes are connected with the water tank, a group of first stirring shafts are arranged between the third guide plate and the inner wall of the first box body, first gears are arranged at the ends of the first stirring shafts and meshed with each other, a connected sixth motor is arranged at the ends of one pair of first stirring shafts, and the sixth motor is fixed on the side wall of the first box body through a fixing seat.
4. The integrated treatment device for soft soil roadbed backfill according to claim 3 is characterized in that the control mechanism comprises a first fixing frame, a first guide shaft, a first control block, a second electric push rod, a second control block, a second fixing frame, a third electric push rod and a second guide shaft, wherein the first fixing frame is fixed at the top of the mixing bin, the second fixing frame is fixed at the bottom of the mixing bin, the first control block is arranged below the first fixing frame, the first control block is provided with the first guide shaft and is in sliding connection with the first fixing frame, the second electric push rod is fixed on the first fixing frame, the second electric push rod top shaft penetrates through the first fixing frame and is fixedly connected with the first control block, the second control block is arranged above the second fixing frame, the second control block is provided with the second guide shaft and is in sliding connection with the second fixing frame, the third electric push rod is fixed on the second fixing frame, and the third electric push rod top shaft penetrates through the second fixing frame and is fixedly connected with the second control block.
5. The integrated treatment device for soft soil roadbed backfill according to claim 4 is characterized in that the pushing mechanism comprises a second box body and a third motor, wherein the second box body is used for containing curing agent, a limiting plate and a control plate are arranged on the side edge of the second box body, a first through hole is formed in the bottom plate of the second box body, the control plate is inserted into the bottom of the second box body and is connected with the bottom plate in a sliding mode, a second through hole is formed in the control plate, a third spring is arranged between the control plate and the limiting plate, an adjusting block is arranged at the bottom of the control plate, a through groove is formed in the bottom of the second box body and is used for sliding of the adjusting block, a pair of adjusting shafts are further arranged in the second box body, arc-shaped arms are arranged at the bottom ends of the adjusting shafts and correspond to the adjusting blocks, the adjusting shafts are connected through chain wheels and chains, the third motor is arranged at the top of the second box body and connected with the adjusting shafts, and the adjusting shafts are driven by the third motor to rotate to enable the arc-shaped arms to push the adjusting blocks and the control plates, and the first through holes and the second through holes are overlapped to carry out discharging; The first stirring fan plate and the second stirring fan plate are arranged below the second box body, two ends of the first stirring fan plate and the second stirring fan plate are rotationally connected with the side wall of the buffer bin, the first stirring fan plate and the second stirring fan plate are arranged on one side of the second box body, so that a mixture passes through the first fan plate and the second fan plate after passing through the discharging hole of the second box body, a mounting box and a fourth motor are arranged on one side of the first stirring fan plate, one end of the first stirring fan plate is provided with a first rotating shaft and is rotationally connected with the mounting box, one end of the second stirring fan plate is provided with a second rotating shaft and is rotationally connected with the mounting box, a sprocket and a bevel gear are arranged on the second rotating shaft, the first rotating shaft is provided with the sprocket and is connected with the sprocket on the first rotating shaft through a chain, the fourth motor is arranged at the bottom of the mixing bin, a transmission shaft is arranged in the mounting box, and the bevel gear is arranged on the transmission shaft and is meshed with the bevel gear on the second rotating shaft.
6. The integrated soft soil roadbed backfill recycling treatment device is characterized in that the stirring mechanism comprises a fifth motor, an auger pushing shaft, a second stirring shaft, a fixed shaft and a third fixing frame, wherein the auger pushing shaft is arranged in the stirring bin and is rotationally connected with two ends of the stirring bin, the third fixing frame is fixed at two ends of the stirring bin, the auger pushing shaft is hollow, a chain wheel is arranged at the end part of the auger pushing shaft, the fixed shaft is arranged in the auger pushing shaft, a bevel gear is arranged on the fixed shaft, the end part of the second stirring shaft is inserted into the auger pushing shaft and is rotationally connected with the auger pushing shaft, the bevel gear is arranged on the second stirring shaft and meshed with the bevel gear, two ends of the fixed shaft are fixedly connected with the third fixing frame, the fifth motor is fixed at the side of the mixing bin, and the chain wheel is arranged on the fifth motor shaft and is connected with the chain wheel on the auger pushing shaft through a chain.
7. The integrated treatment device for recycling soft soil roadbed backfill according to claim 6, which is characterized in that the integrated treatment device for recycling soft soil roadbed backfill comprises the following steps: 1) Firstly, dragging the device to a working point, namely a soft soil roadbed construction point, through an external tractor, and then conveying the excavated soft soil and mixed stone mixture into a feed inlet and a tank body through a conveying device for preliminary crushing; 2) Crushing stone in the mixture, namely crushing stone in soft soil by using a crushing mechanism to enable the stone to meet the mixing condition of a pre-curing agent, wherein the crushing mechanism comprises a mixing proportion capable of enabling curing to meet or meet the construction requirement, and the rotating speed of a second motor is set at 60-75r/min in the process; 3) The mixing and stirring mechanism carries out preliminary mixing and stirring on soil, broken stone and curing agent: firstly, soil stones flow to two sides of the side wall of a first box body along a first guide plate and a second guide plate, a first stirring shaft is driven to rotate by a sixth motor, and the rotating speed of the sixth motor is set to 80-100r/min; Secondly, discharging the curing agent in the box body formed by the U-shaped shell and the bottom plate and contacting with the soil broken stone along a third guide plate at a first stirring shaft; Thirdly, the first supporting block, the second supporting block and the third supporting block are controlled to rotate through rotation of the first motor and push the adjusting shaft, so that the second sealing plate can slide up and down, the adding amount of the curing agent can be controlled, the mixing standard of soil and the curing agent is met, further, the first electric push rod drives the second supporting block and the third supporting block to move up and down in real time, the height difference between the first supporting block and the second supporting block is caused, and the second sealing plate is pressed down through the first spring, so that the real-time control of the height of the second sealing plate and the adding amount of the curing agent is controlled; 4) The stirring mechanism carries out secondary mixing stirring on the soil, the crushed stones and the curing agent: The fifth motor drives the auger propelling shaft to rotate to be matched with auger blades, so that the propelling transmission of the mixture is realized, and the rotation of the second stirring shaft is realized through the fixed shaft which is fixedly arranged and the bevel gears which are mutually matched in the process, so that the mixture is fully mixed by stirring again in the process of mixing, transmitting and propelling; 5) The soil curing agent mixture enters a buffer storage bin which is obliquely arranged after being pushed to one end of a mixing bin by an auger, flows along the oblique direction, and is accumulated at the early stage due to the smaller oblique angle and slower flow speed, so that the flow of the soil curing agent mixture is accelerated and mixed along with the rotation of a first stirring fan plate and a second stirring fan plate in the pushing mechanism; Further, the third motor drives the adjusting shaft to rotate, so that the arc-shaped arm pushes the adjusting block and the control plate to slide, the first through hole and the second through hole are gradually overlapped, and the adding amount of the curing agent is controlled according to the overlapping range; 6) The first control block and the second control block in the control mechanism realize the closing or opening between the two through the control sliding of the second electric push rod and the third electric push rod, so as to block and cache the mixed material consisting of the mixed soil, broken stone and curing agent; by means of the gravity of the cached mixture, the first control block cooperates with the propelling mechanism in the first time of opening the first control block to enable the cached mixture to fall down wholly and rapidly by means of self gravity, and compared with a mode that the mixture slowly falls down along an inclined cache bin in sequence, the method that the control mechanism is used for accumulating the mixture and a flushing gate is caused when the first control block is opened can be used for quickly pouring the mixture to the bottom of the cache bin, so that the defect that the mixture can be accumulated along the way when flowing slowly is avoided; 7) Pumping and pipeline conveying to the construction site for backfilling through a sludge pump.

Description

Soft soil roadbed backfill recycling integrated treatment device Technical Field The invention belongs to the technical field of municipal construction building waste recycling, and particularly relates to an integrated treatment device for recycling soft soil roadbed backfill. Background The construction of municipal engineering construction mostly involves construction such as road construction, pipeline, foundation pit excavation backfill, etc., a large amount of building excavation materials such as soil stones are generated in the construction, if the construction and traffic are influenced by long-term storage, dust is generated, the normal treatment condition is to recycle the construction excavation materials, including a conventional backfill mode, and a plurality of problems can occur in simple backfill, such as 1) the simple backfill can lead to lower backfill engineering strength due to soft soil and lack of support, sedimentation, etc. in the use process of the ground, 2) the normal reinforcement backfill effect mode is to directly add curing agent, but the curing effect is influenced if larger stones exist in the soil or the curing agent is unevenly distributed, and the backfill quality is still influenced; Through retrieving discovery, the treatment device of municipal construction waste regeneration consolidation soil of prior art bulletin number CN 113926828B, including feed mechanism, the breaker, screening mechanism, rabbling mechanism, the bottom plate, the stirring pond, hinder mud device, the frame, hydraulic support leg, the gyro wheel, the inlet tube, water yield controlling means, motor V, the bottom plate below is equipped with a plurality of gyro wheels, bottom plate both sides fixed mounting has the hydraulic support leg, lower side fixed mounting in bottom plate top has the stirring pond, the inside two sets of same rabbling mechanism that are equipped with of stirring pond, stirring pond one side is equipped with the inlet tube, be equipped with water yield controlling means on the inlet tube, the side inlet tube is last to be equipped with and hinder mud device, the stirring pond top is equipped with screening mechanism, screening mechanism top is equipped with the breaker. The invention can fully stir the construction waste, sieve the large-particle aggregate by adding the sieving mechanism, enhance the stirring effect, uniformly increase the curing agent, and has strong flow state self-tightness after stirring, good backfilling effect, greatly reduced later risk and low direct backfilling strength; However, in the mixing and stirring of the curing agent, the mixing and stirring of the stirring rod and the stirring blade are mainly adopted, so that the transmission effect of the spiral stirring rod is not influenced and interfered, the stirring rod and the stirring blade can only stir the surface layer of the mixture, the substantial effect and the effect of the spiral stirring rod are that the transmission is realized, and the stirring effect of the spiral stirring rod on the mixture is lower, so that in the stirring process, the curing agent is less in the amount of the curing agent received by the mixture at the bottom layer, and the stirring effect of the bottom layer is lower, so that the curing agent is mixed and stirred at the upper layer of the mixture, and the poor effect of the overall stirring and mixing of the mixture is caused; Further, through searching, the soft soil improvement stirring equipment for construction machinery processing with the publication number CN 117799060A and the use method thereof, the soft soil improvement stirring equipment for construction machinery processing and the use method thereof can fully stir and mix materials by discharging crushed stone and curing agent falling down from a discharging part in equal proportion with flat soft soil paved on a material conveying part, shorten material mixing time, solve the problem of uneven material mixing, lead the quality of the improved soft soil to reach the standard and improve the working efficiency, lead the curing agent and the backfill to be fully and evenly mixed in a backfilling mode after being mixed, improve the backfill strength, but have corresponding disadvantages that the backfill has larger stone blocks, which is not only unfavorable for the mixing of the two parties, but also seriously influence the operation of a stirring mechanism; according to the analysis of the prior art, although the problem of processing part of the excavated material is solved through soil backfilling, the corresponding defects still exist in the pretreatment process of the soil backfilling, and the invention provides the soil integrated processing device aiming at the defects and combining the prior art so that backfilling can be smoothly backfilled and the corresponding supporting strength is achieved. Disclosure of Invention The invention aims to overcome the defects in the prior art, and provides a