An assembled pipe-breaking excavation device

Abstract

The present invention belongs to the technical field of pipeline maintenance, and particularly relates to an assembled pipe-breaking and tunneling device. The technical scheme is as follows: an assembled pipe-breaking and tunneling device comprises a tool pipe for breaking the original pipeline, the tool pipe is detachably connected with an annular steel plate support, the other end of the annular steel plate support is provided with a plurality of hydraulic jacks, a jacking pipe is provided on the side of the annular steel plate support away from the tool pipe, and the jacking pipe is in contact with the plurality of hydraulic jacks; the annular steel plate support comprises two semicircular steel plate supports, and the two semicircular steel plate supports are detachably connected. The present invention provides an assembled pipe-breaking and tunneling device with a reusable annular steel plate support.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline maintenance, and in particular relates to an assembled pipe-breaking excavation device. Background Art

[0002] With the rapid development of urbanization, the renewal of urban underground pipelines has become more and more serious. As the age of most old underground pipelines continues to increase, underground pipelines are seriously leaking due to lack of maintenance, and may also cause problems such as road collapse, leakage and explosion. Conventional pipeline renewal uses open-cut method, which will seriously damage the existing road structure and affect surrounding traffic. At the same time, the construction cost of open-cut method is usually high.

[0003] The trenchless pipe replacement method emerged in Western countries in the 1960s, and was subsequently widely used in the oil and gas industry, and later gradually applied to the renovation of water supply and drainage pipes. The trenchless pipe replacement method has been put into practice in many countries due to its advantages of high efficiency, high quality, moderate cost and environmental friendliness. The current mainstream trenchless pipe replacement methods mainly include: 1) pipe breaking and squeezing method (including pneumatic, hydraulic pipe crushing method and static tension pipe crushing method); 2) pipe breaking and jacking method (including horizontal auger propulsion method and pipe jacking method); 3) pipe eating method.

[0004] At present, the construction technology of pipeline renewal mainly has the following problems:

[0005] (1) The open-cut method will seriously damage the existing road structure and affect surrounding traffic. At the same time, the construction cost of the open-cut method is usually high.

[0006] (2) The pipe breaking and external squeezing method uses pipe crushing equipment to destroy the original pipe from the inside, squeeze the original pipe fragments into the surrounding soil and form a pipe hole, and then pull in the new pipe simultaneously. This method requires special customized equipment and the operation process is relatively complicated.

[0007] (3) The pipe-breaking jacking method uses a micro-tunnel boring machine suitable for cutting hard rock. It uses a guide drill bit to cut along the old pipe and a cutter head with a larger diameter than the old pipe to cut and destroy the old pipe and soil or rock together. The casing is used to maintain the cross-sectional shape, and the debris is transported out. At the same time, a new pipe with the same cross-sectional size as the excavation is pushed in. This method requires the design of jacking equipment based on the original pipeline, and the construction cost is high, and the process is difficult to control.

[0008] (4) The existing technology generates a large amount of wastewater during the excavation process, which cannot be recycled.

[0009] (5) Both the pipe breaking and squeezing method and the pipe breaking and jacking method require customized special equipment according to the existing buried pipeline conditions, and the construction cost is high.

[0010] (6) Both the pipe breaking and squeezing method and the pipe breaking and jacking method require the reservation of construction wells in advance, and it is impossible to replace the jacking or breaking equipment in time after a mechanical failure occurs during the construction process.

[0011] (7) The conventional pipe-eating method requires customized construction equipment, which has high construction costs and is difficult to maintain and replace in real time. Summary of the invention

[0012] In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide an assembled pipe-breaking excavation device with reusable annular steel plate supports.

[0013] The technical solution adopted by the present invention is:

[0014] An assembled pipe breaking and tunneling device comprises a tool pipe for breaking an existing pipeline, wherein the tool pipe is detachably connected to an annular steel plate support, wherein the other end of the annular steel plate support is provided with a plurality of hydraulic jacks, and a jacking pipe is provided on the side of the annular steel plate support away from the tool pipe, wherein the jacking pipe is in contact with the plurality of hydraulic jacks; the annular steel plate support comprises two semicircular steel plate supports, and the two semicircular steel plate supports are detachably connected.

[0015] The jacking pipe, annular steel plate support and tool pipe of the present invention are pushed forward to break the original pipeline. When the pipe breaking work is completed, the annular steel plate support and the jacking pipe are pushed apart by the hydraulic cylinder to a certain distance, and then the connecting piece between the annular steel plate support and the tool pipe is disassembled, and the annular steel plate support can be loosened forward and backward. The connecting piece between the two semicircular steel plate supports is disassembled, and the semicircular steel plate supports can be separated from the soil layer, making it convenient to take out the two semicircular steel plate supports. There are many equipment attached to the annular steel plate support. The present invention can be repeated by disassembling the annular steel plate support. The present invention is based on the concept of assembly, so that the annular steel plate support can be assembled in situ and replaced in real time.

[0016] As a preferred solution of the present invention, a plurality of axial fixings and radial fixings are fixed inside one end of the tool tube close to the annular steel plate support, and a plurality of axial connecting members and radial connecting members are fixed inside one end of the annular steel plate support close to the tool tube; when the tool tube is connected to the annular steel plate support, the axial fixings are connected to the axial connecting members, and the radial fixings are connected to the radial connecting members. When the annular steel plate support is moved into place, the tool tube and the annular steel plate support are reliably connected by connecting the axial fixings to the axial connecting members, and the radial fixings to the radial connecting members, and the annular steel plate support can push the tool tube to move reliably.

[0017] As a preferred embodiment of the present invention, a water spray dust reduction component is connected to the upper side of the inner part of the annular steel plate support, and the outlet of the water spray dust reduction component faces the direction of the tool pipe; a drainage pipe is arranged on the lower side of the inner part of the annular steel plate support; a water circulation device is connected between the inlet of the water spray dust reduction component and the outlet of the drainage pipe through a pipeline. During the pipe jacking construction, the water spray dust reduction component sprays water to reduce dust in the construction area. The sewage is discharged into the water circulation device through the drainage pipe, and the water circulation device purifies the sewage and then discharges it back into the water spray dust reduction component, thereby recycling water resources.

[0018] As a preferred embodiment of the present invention, the water circulation device includes a drainage pump, the inlet of the drainage pump is connected to the outlet of the drainage pipe through a pipeline; the water circulation device also includes a water treatment tank, the water treatment tank is divided into a sedimentation tank and a clean water tank by a partition, the outlet of the drainage pump is connected to the sedimentation tank through a pipeline, an overflow port is provided on the upper part of the partition, a booster pump is provided in the clean water tank, and the outlet of the booster pump is connected to the inlet of the water spray dust reduction component through a pipeline. The drainage pump pumps sewage into the sedimentation tank through the drainage pipe, the sewage is precipitated in the sedimentation tank, and the clean water overflows into the clean water tank through the overflow port on the upper part of the partition. The booster pump pumps the clean water in the clean water tank back to the water spray dust reduction component, so that the water circuit forms a cycle, and the water is purified during the cycle.

[0019] As a preferred solution of the present invention, a spiral rod is installed at the bottom of the sedimentation tank, one end of the spiral rod is connected to a sludge pump, and a sludge collecting box is arranged at the outlet end of the spiral rod, and the sludge collecting box is arranged outside the water treatment tank. The sludge pump drives the spiral rod to rotate, and the spiral rod can discharge the sludge in the sedimentation tank into the sludge collecting box to avoid excessive sludge remaining in the sedimentation tank.

[0020] As a preferred solution of the present invention, a plurality of soil pressure sensors for monitoring soil pressure are arranged on the outer wall of the annular steel plate support. The soil pressure sensors can monitor the soil pressure in real time during the pipe jacking construction process, realize intelligent monitoring of the entire construction process, and improve construction safety.

[0021] As a preferred solution of the present invention, a plurality of closed-circuit television components facing the tool pipe are installed in the annular steel plate support. The closed-circuit television components are panoramic imaging systems that monitor the construction environment.

[0022] As a preferred solution of the present invention, a waste transport mechanism is installed in the top pipe, which can transport the waste out to avoid the waste blocking the device.

[0023] As a preferred solution of the present invention, the waste transport mechanism includes a plurality of support seats installed in the top pipe, on which a transmission wheel is installed, and a crawler belt is connected between the plurality of transmission wheels, and baffles are arranged on both sides of the crawler belt, and the baffles are fixed on the support seats. When the transmission wheel is driven, the crawler belt transports the waste out. The baffles can prevent the waste from falling from the crawler belt.

[0024] As a preferred solution of the present invention, a ventilation mechanism is also included, the ventilation mechanism includes a ventilation pump, the outlet of the ventilation pump is connected to an air outlet pipe, the air outlet pipe is connected to a ventilation pipe in the working area, and the ventilation pipe in the working area is connected to the inside of the annular steel plate support. The ventilation pump sends fresh air into the ventilation pipe in the working area through the air outlet pipe to ensure smooth ventilation in the working area and ensure safe operation.

[0025] The beneficial effects of the present invention are:

[0026] The jacking pipe, annular steel plate support and tool pipe of the present invention are pushed forward to break the original pipeline. When the pipe breaking work is completed, the annular steel plate support and the jacking pipe are pushed apart by the hydraulic cylinder to a certain distance, and then the connecting piece between the annular steel plate support and the tool pipe is disassembled, and the annular steel plate support can be loosened forward and backward. The connecting piece between the two semicircular steel plate supports is disassembled, and the semicircular steel plate supports can be separated from the soil layer, making it convenient to take out the two semicircular steel plate supports. There are many equipment attached to the annular steel plate support. The present invention can be repeated by disassembling the annular steel plate support. The present invention is based on the concept of assembly, so that the annular steel plate support can be assembled in situ and replaced in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a partial structural diagram of the present invention;

[0029] Figure 3 is a schematic diagram of the structure of the tool tube;

[0030] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0031] Figure 5 It is a structural schematic diagram of the annular steel plate support in the first direction;

[0032] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0033] Figure 7 A schematic diagram of the structure of the annular steel plate support in the second direction;

[0034] Figure 8 yes Figure 7 A partial enlarged view of point C in the middle;

[0035] Fig. 9 It is a schematic diagram of the structure of the water circulation device;

[0036] Fig.10 It is a structural diagram of the ventilation mechanism;

[0037] Fig.11 It is a structural diagram of a waste transport mechanism.

[0038] In the figure: 1-tool pipe; 2-annular steel plate support; 3-jacking pipe; 4-water circulation device; 5-waste transmission mechanism; 6-ventilation mechanism; 11-axial fixing member; 12-radial fixing member; 21-hydraulic jack; 22-semicircular steel plate support; 23-axial connecting member; 24-radial connecting member; 25-water spray dust suppression component; 26-drainage pipe; 27-soil pressure sensor; 28-closed-circuit television component; 29-operating area ventilation pipe; 41-drainage pump; 42-partition; 43-sedimentation tank; 44-clean water tank; 45-boosting pump; 46-screw rod; 47-mud discharge pump; 48-mud collecting box; 51-support seat; 52-transmission wheel; 53-track; 54-baffle; 61-air outlet pipe; 62-ventilation pump; 111-axial fixing block; 121-radial fixing block; 221-intermediate fixing block; 222-intermediate screw rod; 231-axial connecting block; 232-axial screw rod; 241-radial connecting block; 242-radial screw rod; 243-level meter; 421-overflow port. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0041] like Figure 1 and Figure 2As shown, the assembled pipe breaking and excavation device of this embodiment includes a tool pipe 1 for breaking the original pipeline, the tool pipe 1 is detachably connected with an annular steel plate support 2, the other end of the annular steel plate support 2 is provided with a plurality of hydraulic jacks 21, and a jacking pipe 3 is provided on the side of the annular steel plate support 2 away from the tool pipe 1, and the jacking pipe 3 is in contact with the plurality of hydraulic jacks 21; the annular steel plate support 2 includes two semicircular steel plate supports 22, and the two semicircular steel plate supports 22 are detachably connected.

[0042] The jacking pipe 3, annular steel plate support 2 and tool pipe 1 of the present invention are pushed forward to break the original pipeline. When the pipe breaking work is completed, the annular steel plate support 2 and the jacking pipe 3 are pushed open by the hydraulic cylinder to a certain distance, and then the connecting piece between the annular steel plate support 2 and the tool pipe 1 is disassembled, and the annular steel plate support 2 can be loosened forward and backward. The connecting piece between the two semicircular steel plate supports 22 is disassembled, and the semicircular steel plate supports 22 can be separated from the soil layer, making it convenient to take out the two semicircular steel plate supports 22. There are many equipment attached to the annular steel plate support 2. The present invention can be repeated by disassembling the annular steel plate support 2. The present invention is based on the concept of assembly, so that the annular steel plate support 2 can be assembled in situ and replaced in real time.

[0043] Specifically, Figure 3 to Figure 6 As shown, a plurality of axial fixing members 11 and radial fixing members 12 are fixed in one end of the tool tube 1 close to the annular steel plate support 2, and a plurality of axial connecting members 23 and radial connecting members 24 are fixed in one end of the annular steel plate support 2 close to the tool tube 1; when the tool tube 1 is connected with the annular steel plate support 2, the axial fixing member 11 is connected with the axial connecting member 23, and the radial fixing member 12 is connected with the radial connecting member 24. When the annular steel plate support 2 is moved into place, the tool tube 1 and the annular steel plate support 2 are reliably connected by connecting the axial fixing member 11 with the axial connecting member 23 and the radial fixing member 12 with the radial connecting member 24, and the annular steel plate support 2 can push the tool tube 1 to move reliably.

[0044] The axial fixing member 11 includes an axial fixing block 111 fixed in the tool tube 1, and an axial threaded hole is provided on the axial fixing block 111. The axial connecting member 23 includes an axial connecting block 231 fixed in the annular steel plate support 2, and an axial screw rod 232 is fixed on the axial connecting block 231. When connecting the tool tube 1 and the annular steel plate support 2, the axial screw rod 232 is inserted into the threaded hole of the axial fixing block 111, and then the forward nut and the reverse nut are connected and tightened.

[0045] The radial fixing member 12 includes a radial fixing block 121 fixed in the tool tube 1, and a radial threaded hole is provided on the radial fixing block 121. The radial connecting member 24 includes a radial connecting block 241 fixed in the annular steel plate support 2, and a radial screw 242 is threadedly connected to the radial connecting block 241. When connecting the tool tube 1 and the annular steel plate support 2, the radial screw 242 is threadedly connected to the threaded hole of the radial fixing block 121, and then the forward nut and the reverse nut are connected and tightened. A level 243 is also provided on the radial connecting block 241 to observe whether the radial fixing member 12 and the radial connecting member 24 are connected in place.

[0046] A plurality of axial fixing members 11 and a plurality of radial fixing members 12 are arranged at intervals and evenly distributed in the tool tube 1 , and a plurality of axial connecting members 23 and a plurality of radial connecting members 24 are arranged at intervals and evenly distributed in the annular steel plate support 2 .

[0047] like Figure 7 and Figure 8 As shown, an intermediate fixing block 221 is fixed inside the semicircular steel plate support 22, and the intermediate fixing blocks 221 of the two semicircular steel plate supports 22 are assembled together and connected through an intermediate screw rod 222. A screw fixing cap is fixed on the intermediate screw rod 222, and a forward nut and a reverse nut are threadedly connected on the intermediate screw rod 222. A pressure detection device is connected between the fixing cap of the intermediate screw rod 222 and the forward nut to detect whether the intermediate screw rod 222 is tightened. A pressure sensor is also provided between the adjacent intermediate fixing blocks 221 of the two semicircular steel plate supports 22 to detect whether the two intermediate fixing blocks 221 are reliably connected.

[0048] like Figure 5 and Figure 7 As shown, in order to reduce dust in the working area, a water-spraying dust-reducing component 25 is connected to the upper side of the inner part of the annular steel plate support 2, and the outlet of the water-spraying dust-reducing component 25 faces the direction of the tool pipe 1; a drainage pipe 26 is arranged on the lower side of the inner part of the annular steel plate support 2; a water circulation device 4 is connected between the inlet of the water-spraying dust-reducing component 25 and the outlet of the drainage pipe 26 through a pipeline. During the construction of the top pipe 3, the water-spraying dust-reducing component 25 sprays water to reduce dust in the construction area. The sewage is discharged into the water circulation device 4 through the drainage pipe 26, and the water circulation device 4 purifies the sewage and then discharges it back into the water-spraying dust-reducing component 25, thereby recycling water resources.

[0049] Among them, Fig. 9The water circulation device 4 includes a drainage pump 41, the inlet of which is connected to the outlet of the drainage pipe 26 through a pipeline; the water circulation device 4 also includes a water treatment tank, which is divided into a sedimentation tank 43 and a clean water tank 44 by a partition 42, the outlet of the drainage pump 41 is connected to the sedimentation tank 43 through a pipeline, an overflow port 421 is provided on the upper part of the partition 42, and a booster pump 45 is provided in the clean water tank 44, and the outlet of the booster pump 45 is connected to the inlet of the water spraying and dust reduction component 25 through a pipeline. The drainage pump 41 pumps sewage into the sedimentation tank 43 through the drainage pipe 26, the sewage is precipitated in the sedimentation tank 43, and the clean water overflows into the clean water tank 44 through the overflow port 421 on the upper part of the partition 42. The booster pump 45 pumps the clean water in the clean water tank 44 back to the water spraying and dust reduction component 25, so that the water circuit forms a cycle, and the water is purified during the cycle.

[0050] A screw rod 46 is installed at the bottom of the sedimentation tank 43, one end of the screw rod 46 is connected to a sludge pump 47, and a sludge collecting box 48 is arranged at the outlet end of the screw rod 46, and the sludge collecting box 48 is arranged outside the water treatment tank. The sludge pump 47 drives the screw rod 46 to rotate, and the screw rod 46 can discharge the sludge in the sedimentation tank 43 into the sludge collecting box 48, so as to avoid excessive sludge remaining in the sedimentation tank 43.

[0051] like Figure 4 and Figure 5 As shown, in order to monitor the working area, a plurality of soil pressure sensors 27 for monitoring soil pressure are arranged on the outer wall of the annular steel plate support 2, and a plurality of closed-circuit television components 28 facing the tool pipe 1 are also installed in the annular steel plate support 2. The soil pressure sensor 27 can monitor the soil pressure in real time during the construction of the jacking pipe 3; the closed-circuit television component 28 is a panoramic imaging system, which monitors the construction environment. The soil pressure sensor 27 and the closed-circuit television component 28 realize intelligent monitoring of the entire construction process, thereby improving construction safety.

[0052] Furthermore, Fig.11 As shown, a waste conveying mechanism 5 is installed in the top pipe 3. The waste conveying mechanism 5 can convey the waste out to prevent the waste from clogging the device. The waste conveying mechanism 5 includes a plurality of support seats 51 installed in the top pipe 3, on which a transmission wheel 52 is installed, and a crawler 53 is connected between the plurality of transmission wheels 52. Baffles 54 are arranged on both sides of the crawler 53, and the baffles 54 are fixed on the support seats 51. When the transmission wheel 52 is driven, the crawler 53 conveys the waste out. The baffles 54 can prevent the waste from falling from the crawler 53.

[0053] Furthermore, Figure 4 and Fig.10As shown, the ventilation mechanism 6 is also included, and the ventilation mechanism 6 includes a ventilation pump 62, and the outlet of the ventilation pump 62 is connected to an air outlet pipe 61, and the air outlet pipe 61 is connected to the working area ventilation pipe 29, and the working area ventilation pipe 29 is connected to the annular steel plate support 2. The ventilation pump 62 sends fresh air into the working area ventilation pipe 29 through the air outlet pipe 61 to ensure smooth ventilation of the working area and ensure safe operation.

[0054] It should be noted that if Figure 5 and Figure 7 As shown, the annular steel plate support 2 is provided with steps, and a plurality of hydraulic jacks 21 are evenly distributed on the steps close to the jacking pipe 3. The jacking pipe 3 is sleeved in the outer ring of the annular steel plate support 2 and contacts with the plurality of hydraulic jacks 21 on the steps of the annular steel plate support 2. The closed-circuit television component 28 is installed on the step close to the tool pipe 1 of the annular steel plate support 2, so that the closed-circuit television component 28 can take panoramic photos of the working area.

[0055] The present invention realizes the reuse of sewage generated during the excavation process, and introduces an automatic cleaning and sludge compression device. The present invention introduces a panoramic imaging system and a pressure monitoring system to monitor the soil pressure and construction environment during the construction of the jacking pipe 3, realize intelligent monitoring of the entire construction process, and improve construction safety. The design of the present invention is based on the concept of assembly, and the annular steel plate support 2 can be assembled and spliced ​​in situ and replaced in real time.

[0056] Working principle:

[0057] The annular steel plate support 2 is connected to the tool pipe 1, and the jacking pipe 3, the annular steel plate support 2 and the tool pipe 1 are pushed forward to break the original pipeline. During the operation, the water spray dust reduction component 25 sprays water to reduce dust in the construction area. The sewage is discharged into the water circulation device 4 through the drainage pipe 26, and the water circulation device 4 purifies the sewage and then discharges it back into the water spray dust reduction component 25. The drainage pump 41 pumps the sewage into the sedimentation tank 43 through the drainage pipe 26. The sewage is precipitated in the sedimentation tank 43, and the clean water overflows into the clean water tank 44 through the overflow port 421 on the upper part of the partition 42. The booster pump 45 pumps the clean water in the clean water tank 44 back to the water spray dust reduction component 25. The ventilation pump 62 sends fresh air into the working area ventilation pipe 29 through the outlet pipe 61 to ensure smooth ventilation of the working area and ensure safe operation. The waste transmission mechanism 5 can transport the waste out to prevent the waste from clogging the device. The soil pressure sensor 27 monitors the soil pressure in real time during the construction of the jacking pipe 3; the closed-circuit television component 28 monitors the construction environment. The soil pressure sensor 27 and the closed-circuit television component 28 realize intelligent monitoring of the entire construction process and improve construction safety.

[0058] After the pipe breaking operation is completed, the annular steel plate support 2 and the jacking pipe 3 are pushed apart by the hydraulic cylinder to a certain distance, and then the connecting piece between the annular steel plate support 2 and the tool pipe 1 is disassembled, so that the annular steel plate support 2 can be loosened forward and backward. The connecting piece between the two semicircular steel plate supports 22 is disassembled, so that the semicircular steel plate supports 22 can be separated from the soil layer, making it convenient to take out the two semicircular steel plate supports 22.

[0059] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. An assembled pipe-breaking excavation device, characterized in that: The invention comprises a tool pipe (1) for breaking an existing pipeline, wherein the tool pipe (1) is detachably connected to an annular steel plate support (2), a plurality of hydraulic jacks (21) are arranged at the other end of the annular steel plate support (2), a jacking pipe (3) is arranged on the side of the annular steel plate support (2) away from the tool pipe (1), and the jacking pipe (3) is in contact with the plurality of hydraulic jacks (21); the annular steel plate support (2) comprises two semicircular steel plate supports (22), and the two semicircular steel plate supports (22) are detachably connected; A plurality of axial fixing members (11) and radial fixing members (12) are fixed inside one end of the tool pipe (1) close to the annular steel plate support (2), and a plurality of axial connecting members (23) and radial connecting members (24) are fixed inside one end of the annular steel plate support (2) close to the tool pipe (1); when the tool pipe (1) is connected to the annular steel plate support (2), the axial fixing member (11) is connected to the axial connecting member (23), and the radial fixing member (12) is connected to the radial connecting member (24); A water spray dust reduction component (25) is connected to the upper side of the annular steel plate support (2), and the outlet of the water spray dust reduction component (25) faces the direction of the tool pipe (1); a drainage pipe (26) is arranged on the lower side of the annular steel plate support (2); a water circulation device (4) is connected between the inlet of the water spray dust reduction component (25) and the outlet of the drainage pipe (26) via a pipeline; A waste transport mechanism (5) is installed in the top pipe (3); The waste transport mechanism (5) comprises a plurality of support seats (51) installed in the top pipe (3), a transmission wheel (52) being installed on the support seats (51), a crawler belt (53) being transmission-connected between the plurality of transmission wheels (52), baffle plates (54) being arranged on both sides of the crawler belt (53), and the baffle plates (54) being fixed on the support seats (51).

2. The assembled pipe-breaking excavation device according to claim 1 is characterized in that: The water circulation device (4) comprises a drainage pump (41), the inlet of the drainage pump (41) being connected to the outlet of the drainage pipe (26) via a pipeline; the water circulation device (4) further comprises a water treatment tank, the water treatment tank being divided into a sedimentation tank (43) and a clean water tank (44) via a partition (42), the outlet of the drainage pump (41) being connected to the sedimentation tank (43) via a pipeline, an overflow port (421) being provided at the top of the partition (42), a booster pump (45) being provided in the clean water tank (44), the outlet of the booster pump (45) being connected to the inlet of the water spraying and dust reduction component (25) via a pipeline.

3. The assembled pipe-breaking excavation device according to claim 2 is characterized in that: A spiral rod (46) is installed at the bottom of the sedimentation tank (43), one end of the spiral rod (46) is connected to a mud discharge pump (47), and a mud collecting box (48) is provided at the outlet end of the spiral rod (46), and the mud collecting box (48) is arranged outside the water treatment tank.

4. The assembled pipe-breaking excavation device according to claim 1 is characterized in that: A plurality of soil layer pressure sensors (27) for monitoring soil layer pressure are arranged on the outer wall of the annular steel plate support (2).

5. The assembled pipe-breaking excavation device according to claim 1 is characterized in that: A plurality of closed-circuit television components (28) facing the tool pipe (1) are also installed in the annular steel plate support (2).

6. The assembled pipe-breaking excavation device according to any one of claims 1 to 5, characterized in that: It also includes a ventilation mechanism (6), the ventilation mechanism (6) includes a ventilation pump (62), the outlet of the ventilation pump (62) is connected to an air outlet pipe (61), the air outlet pipe (61) is connected to an operating area ventilation pipe (29), and the operating area ventilation pipe (29) is connected to the inside of the annular steel plate support (2).

Images