CN215408656U - Slag discharge surge buffering device for shield construction - Google Patents
Slag discharge surge buffering device for shield construction Download PDFInfo
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- CN215408656U CN215408656U CN202120780615.6U CN202120780615U CN215408656U CN 215408656 U CN215408656 U CN 215408656U CN 202120780615 U CN202120780615 U CN 202120780615U CN 215408656 U CN215408656 U CN 215408656U
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Abstract
The utility model discloses a slag discharge surge buffering device for shield construction, belongs to the technical field of shield slag discharge, and solves the problems that the slag discharge surge phenomenon of a screw conveyor is easily caused to cause construction safety accidents and pollution to construction environment due to poor geological condition and uncontrollable process in the prior art, and the problems comprise that: screw conveyer, its characterized in that, screw conveyer's the fixed gate that is provided with in bottom, the bottom of gate is connected with two gates together, there is the buffering cover one side of gate through the pipe connection, the fixed shirt rim scraper blade that is provided with in bottom of buffering cover promotes the belt feeder, the buffering cover is the box structure, the fixed several bolster that is provided with in inside of box structure, the fixed initiative belt feeder that is provided with in bottom of two gates has avoided the dregs spewing phenomenon that takes place when carrying out the excavation of high moisture soil layer.
Description
Technical Field
The utility model belongs to the technical field of shield slag discharge, and particularly relates to a slag discharge surge buffering device for shield construction.
Background
A shield machine is a tunnel boring machine using a shield method. The shield construction method is a shield which constructs a tunnel while a heading machine is heading, and is different from an open construction method; internationally, generalized shield machines can also be used in rock formations, differing only from open tunnel boring machines. In China, a tunnel boring machine used for a soft soil stratum is customarily called a shield machine, a tunnel boring machine used for a rock stratum is called TBM, the shield machine is generally divided into a hand-boring shield, an extrusion type shield, a semi-mechanical shield and a mechanical shield according to the working principle, and the basic working principle of the shield machine is that a cylindrical steel component is pushed forwards along the axis of a tunnel and simultaneously excavates soil. The casing of the cylinder assembly, the shield, acts as a temporary support for the excavated, not yet lined tunnel section, bearing the pressure of the surrounding soil layers and sometimes also the groundwater pressure and the water that is trapped outside. The operations of digging, dumping, lining and the like are carried out under the shield of the shield.
In the conventional technology, because the underground has the soil layer with large water content, the conveying speed of the muck is high, the process is uncontrollable, the slag discharge and spewing phenomenon of the screw conveyor is easy to cause, and construction safety accidents and construction environment pollution are caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a slag-discharging surge buffering device for shield construction, aiming at the problems that in the prior art, when a soil layer with larger water content is encountered, the slag-discharging surge phenomenon of a screw conveyor is easily caused due to large slag-discharging transportation speed and uncontrollable process, so that construction safety accidents are caused and the construction environment is polluted, and the purpose is as follows: the dual-mode slag discharge of the shield muck is realized, and the phenomenon of gushing is avoided when the high-water-amount muck is discharged.
The technical scheme adopted by the utility model is as follows:
the utility model provides a gush buffer that slags tap for shield structure construction, includes screw conveyer, its characterized in that, screw conveyer's the fixed gate that is provided with in bottom, the bottom of one gate is connected with two gates, there is the buffering cover one side of gate through the pipe connection, the fixed shirt rim scraper blade that is provided with in bottom of buffering cover promotes the belt feeder, the buffering cover is the box structure, the fixed several bolster that is provided with in inside of box structure, the fixed initiative belt feeder that is provided with in bottom of two gates, one gate with fixed artifical ball valve that is provided with on the pipeline between the buffering cover, one side of artifical ball valve is provided with electric ball valve, shirt rim scraper blade promotes the belt feeder and includes conveyer, conveyer's outside is fixed and is provided with the several separation blade.
By adopting the device, when encountering a soil layer with larger water content, high-water-content muck can be guided into the buffer cover by closing the two gates and using the one gate, the buffer part in the buffer cover can absorb the kinetic energy of the gushed high-water-content muck, so that the high-water-content muck falls into the skirt scraper lifting belt conveyor after passing through the buffer part layer for blocking and releasing potential energy, thereby solving the problems that the high-water-content muck directly gushes onto the belt conveyor from the gate outlet in the prior art, polluting the field construction environment and causing construction safety accidents, improving the safety, the construction stability and the construction efficiency of the device, when shield excavation is carried out, the manual ball valve is kept in an open state, the electric ball valve can be remotely controlled by a shield room, when an accident happens, emergency treatment can be carried out by manually closing the manual ball valve, and the structure ensures that the slag discharge process of the high-water-content muck can be remotely controlled, an emergency plan is provided, the high-water-content slag discharging process can be closed and opened at any time, and the high-water-content slag soil can be effectively prevented from slipping on the conveying belt; in the conventional art, high water content dregs are discharged into the back on the belt feeder, because its water content is higher, and is more wet and smooth, take place the phenomenon of skidding easily when the belt transports, lead to dregs excessive or backward flow, seriously influenced the normal of shield structure machine and slag tap, through this structure, discharge into the shirt rim scraper blade at high water content dregs and promote the back on the belt feeder, because the separation blade has certain sheltering from and supporting role to it, make high water content dregs can not skid the backward flow easily, improved the slag tapping efficiency of shield structure dregs.
The skirt scraper lifting belt conveyor is close to a lifting chain is fixedly arranged on one side of the spiral conveyor, the lifting chain is far away from a fixing frame is fixedly arranged at one end of the skirt scraper lifting belt conveyor, and the fixing frame is arranged above the skirt scraper lifting belt conveyor.
By adopting the scheme, when the skirt scraper lifting belt conveyor is installed, the height of the skirt scraper lifting belt conveyor is controlled by lifting or lowering the lifting chain to align the skirt scraper lifting belt conveyor to a gate.
The skirt scraper lifting belt conveyor is far away from one end of the spiral conveyor is fixedly provided with a transverse chain, and the transverse chain is far away from one end of the skirt scraper lifting belt conveyor is fixedly provided with a transverse fixing frame.
Adopt above-mentioned scheme, excavating in normal moisture content soil layer, when need carrying out video monitoring to two gates, because this device sets up in two gate tops, so need promote the belt feeder with the shirt rim scraper blade and remove, in order to guarantee that the shield constructs the camera and can be to the real time monitoring of two gates, in this kind of condition, the horizontal chain of accessible pulling, pull out the certain distance with shirt rim scraper blade promotion belt feeder, in order to guarantee the control visual angle that the shield constructs the camera, adopt this structure, the flexibility and the suitability of this device have been promoted greatly.
The buffer cover is of a triangular box structure.
By adopting the scheme, the triangular structure can ensure the blocking effect of the inclined edge of the triangular structure on high-water-content slag soil, and guide the skirt scraper blade falling into the lower part to lift the belt conveyor, and the triangular structure is simple in structure, low in manufacturing cost and capable of meeting the construction requirements.
The buffer is a spring.
By adopting the scheme, the buffer cover can ensure the elasticity of the buffer cover while realizing the function of blocking and releasing high-water-content muck potential energy, can not be broken or bent and deformed by the high-water-content muck gushed into the buffer cover in long-time construction operation, and can ensure the bias of the buffer cover, thereby ensuring the buffer performance and the service life of the device.
The spring and the buffer cover are connected in a spot welding manner.
The fixed belt feeder mount that is provided with in bottom of shirt rim scraper blade promotion belt feeder, the fixed walking wheel that is provided with on the belt feeder mount.
By adopting the scheme, in the transverse dragging construction of the skirt scraper lifting belt conveyor, the walking wheels on the fixing frame can reduce the dragging force to the maximum extent, the labor intensity of constructors is reduced, and the operation efficiency is improved.
By adopting the above scheme, in summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. when meetting the great soil layer of water content, the accessible closes the mode of two gates and use one gate, with the leading-in buffering cover of high water content dregs, bolster in the buffering cover can absorb the kinetic energy of the high water content dregs that gushes and go into, make high water content dregs through stopping together and release potential energy's bolster layer after, fall into the shirt rim scraper blade and promote the belt feeder, solved that high water content dregs are direct gushed to the belt feeder by going out the floodgate mouth in the prior art, pollute the site operation environment and cause the construction incident, the security and the construction stability and the efficiency of construction of device have been improved.
2. When carrying out the shield and excavating, artifical ball valve keeps the open mode, and electric ball valve accessible shield main control room remote control, when the unexpected condition takes place, the artifical ball valve of accessible manual closing carries out emergency treatment, and this structure has guaranteed to carry out remote control to the sediment process of arranging of high water volume dregs to provide urgent plan, can close at any time and open high water volume sediment process.
3. The high-water-content muck can be effectively prevented from slipping on the conveying belt; in the conventional art, high water content dregs are discharged into the back on the belt feeder, because its water content is higher, and is more wet and smooth, take place the phenomenon of skidding easily when the belt transports, lead to dregs excessive or backward flow, seriously influenced the normal of shield structure machine and slag tap, through this structure, discharge into the shirt rim scraper blade at high water content dregs and promote the back on the belt feeder, because the separation blade has certain sheltering from and supporting role to it, make high water content dregs can not skid the backward flow easily, improved the slag tapping efficiency of shield structure dregs.
4. When the skirt scraper lifting belt conveyor is installed, the height of the skirt scraper lifting belt conveyor is controlled by lifting or lowering the lifting chain to align the skirt scraper lifting belt conveyor with the gate.
5. When carrying out normal moisture soil layer excavation, need carry out video monitoring to two gates, because this device sets up in two gate tops, so need put aside shirt rim scraper blade lifting belt feeder, in order to guarantee that the shield constructs the camera and can be to the real time monitoring of two gates, under this kind of circumstances, the horizontal chain of accessible pulling promotes the belt feeder with the shirt rim scraper blade and pulls out the certain distance, in order to guarantee the control visual angle that the shield constructs the camera, adopt this structure, the flexibility and the suitability of this device have been promoted greatly.
6. The in-process of pulling can reduce constructor's intensity of labour through the walking wheel, can switch between the slag discharging mode of normal coating and high moisture coating comparatively in a flexible way, has solved the gushing phenomenon that takes place when transporting high moisture dregs among the traditional art and need shut down and carry out the site handling, and the drawback of the construction progress that slows down has improved the efficiency of slagging tap of shield structure machine, has shortened the time limit for a project of shield structure operation.
Drawings
The utility model will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a main viewing structure of an embodiment of the present invention;
reference numerals: 1-a screw conveyor; 2-one gate; 3-two gates; 4-a buffer cover; 5-a skirt edge scraper belt lifting machine; 6-a buffer member; 7-driving belt conveyor; 8-a manual ball valve; 9-an electric ball valve; 11-lifting chains; 12-a fixing frame; 13-transverse chains; 14-transverse fixing frame; 15-belt conveyor fixing frame; 16-road wheels.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1.
The first embodiment is as follows:
a slag discharge surge buffering device for shield construction comprises a screw conveyor 1, a gate 2 is fixedly arranged at the bottom of the screw conveyor 1, the bottom of the first gate 2 is connected with a second gate 3, one side of the first gate 2 is connected with a buffer cover 4 through a pipeline, the bottom of the buffer cover 4 is fixedly provided with a skirt scraper lifting belt conveyor 5, the buffer cover 4 is of a box body structure, a plurality of buffer parts 6 are fixedly arranged inside the box body structure, the bottom of the second gate 3 is fixedly provided with an active belt conveyor 7, an artificial ball valve 8 is fixedly arranged on a pipeline between the gate 2 and the buffer cover 4, one side of the artificial ball valve 8 is provided with an electric ball valve 9, the skirt scraper lifting belt conveyor 5 comprises a conveying belt, and a plurality of separation blades 10 are fixedly arranged outside the conveying belt.
In the first embodiment, one gate 2 and two gates 3 are fixedly arranged at the gate outlet of the screw conveyor 1 by welding, wherein one side of the buffer cover 4, which is connected with the two gates 3 through a pipeline, close to the pipeline is provided with an opening, which is preferably circular, so as to match the shape of the pipeline, wherein the pipeline is sequentially provided with a manual ball valve 8 and an electric ball valve 9, wherein the manual ball valve 8 is kept open, the electric ball valve 9 is controlled by a shield main control chamber, when normal shield deslagging is performed, the electric ball valve 9 is closed, all the muck is ensured to fall into the active belt conveyor 7 through the two gates 3 for muck transportation, when a high water-bearing soil layer is excavated, the electric ball valve 9 is opened, the two gates 3 are closed, all the muck sequentially passes through the one gate 2, the manual ball valve 8, the electric ball valve 9 and the buffer cover 4, and finally jumps into the scraper lifting belt conveyor 5, wherein the inside of buffer shield 4 is provided with several bolster 6, and wherein bolster 6 can shelter from and release its potential energy to the high moisture dregs that gush and go into, and after high moisture dregs obtained the barrier action, its potential energy reduced to ordinary level, and in leading-in shirt rim scraper blade promotion belt feeder 5 again, can guarantee not gush to shirt rim scraper blade promotion belt feeder 5 or job site, guaranteed construction safety and construction environment to avoided shutting down because need carry out job site arrangement.
Example two: the skirt scraper lifting belt conveyor 5 comprises a conveying belt, and a plurality of baffle plates 10 are fixedly arranged outside the conveying belt.
The skirt scraper lifting belt conveyor 5 is close to one side of the spiral conveyor 1 is fixedly provided with a lifting chain 11, the lifting chain 11 is far away from one end of the skirt scraper lifting belt conveyor 5 is fixedly provided with a fixing frame 12, and the fixing frame (12) is arranged above the skirt scraper lifting belt conveyor 5.
The skirt scraper lifting belt conveyor 5 is far away from one end of the spiral conveyor 1 is fixedly provided with a transverse chain 13, and one end of the transverse chain 13 far away from the skirt scraper lifting belt conveyor 5 is fixedly provided with a transverse fixing frame 14.
The buffer cover 4 is a triangular box structure.
In the second embodiment, the surface of the conveying belt on the skirt scraper lifting belt conveyor 5 is provided with a plurality of blocking pieces, wherein the blocking pieces block and support moist slag soil with a slipping or backflow tendency after the high-moisture slag soil falls onto the conveying belt, so that the situation that the slag soil reflows to the spiral conveyor 1 again due to slipping on the belt to pollute the site construction environment is avoided; wherein one section of horizontal chain 13 is fixed on horizontal mount 14, and the other end is fixed on shirt rim scraper blade promotion belt feeder, when needs shirt rim scraper blade promotion belt feeder needs lateral shifting, the accessible pulls horizontal chain 13 and carries out lateral shifting, and wherein the triangle-shaped box of buffer shield 4 has guaranteed its effect of blockking to the dregs, and wherein the preferred right triangle-shaped is preferably, and wherein the hypotenuse constitutes is to the pipeline, bolster 6 is also fixed to be set up on the face that the hypotenuse constitutes, and the face that two right-angle sides constitute is for the effect of sheltering from to 6 both sides of bolster, and the face that is close to the pipeline realizes the UNICOM with the pipeline, and the face that two longer right-angle sides constitute is for opening the aspect, is responsible for the link that leads to after the completion of high moisture dregs blocks.
Example three: the buffer 6 is a spring.
The buffer member 6 and the buffer cover are connected in a spot welding manner.
The bottom of shirt rim scraper blade promotion belt feeder 5 is fixed and is provided with belt feeder mount 15, fixed walking wheel 16 that is provided with on the belt feeder mount 15.
By adopting the embodiment, the spring can ensure the elasticity of the spring while realizing the function of blocking and releasing high-water-content muck potential energy, the spring can not be broken or bent and deformed by the high-water-content muck sprayed into the buffer cover 4 in long-time construction operation, the bias of the buffer cover 4 is enabled to be close, the buffer performance and the service life of the device are ensured, the dragging force of the walking wheel 16 on the fixing frame 12 can be reduced to the maximum extent in the transverse dragging construction of the skirt scraper lifting belt conveyor 5, the labor intensity of constructors is reduced, the operation efficiency is improved, the construction method can be flexibly switched between the slag discharging modes of a normal coating and a high-water-content coating, the defects that the spraying phenomenon and the shutdown field treatment need to be carried out during the transportation of the high-water-content muck in the traditional technology and the construction is slowed down are solved, the slag discharging efficiency of the shield machine is improved, and the construction period of shield operation is shortened.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (7)
1. The slag-discharging and surge buffering device for shield construction comprises a screw conveyor (1) and is characterized in that one gate (2) is fixedly arranged at the bottom of the screw conveyor (1), two gates (3) are connected to the bottom of the one gate (2), one side of the one gate (2) is connected with a buffering cover (4) through a pipeline, a skirt scraper lifting belt conveyor (5) is fixedly arranged at the bottom of the buffering cover (4), the buffering cover (4) is of a box body structure, a plurality of buffering pieces (6) are fixedly arranged in the box body structure, an active belt conveyor (7) is fixedly arranged at the bottom of the two gates (3), an artificial ball valve (8) is fixedly arranged on a pipeline between the one gate (2) and the buffering cover (4), and an electric ball valve (9) is arranged at one side of the artificial ball valve (8), the skirt scraper lifting belt conveyor (5) comprises a conveying belt, and a plurality of blocking pieces (10) are fixedly arranged outside the conveying belt.
2. The slag-tapping gushing buffering device for shield construction according to claim 1, wherein a lifting chain (11) is fixedly arranged on one side of the skirt scraper lifting belt conveyor (5) close to the screw conveyor (1), a fixing frame (12) is fixedly arranged at one end of the lifting chain (11) far away from the skirt scraper lifting belt conveyor (5), and the fixing frame (12) is arranged above the skirt scraper lifting belt conveyor (5).
3. The slag-tapping gushing buffering device for shield construction according to claim 1, wherein a transverse chain (13) is fixedly arranged at one end of the skirt scraper lifting belt conveyor (5) far away from the screw conveyor (1), and a transverse fixing frame (14) is fixedly arranged at one end of the transverse chain (13) far away from the skirt scraper lifting belt conveyor (5).
4. The slag-tapping gushing buffer device for shield construction according to claim 1, wherein the buffer cover (4) is a triangular box structure.
5. The slag gush buffering device for shield construction according to claim 1, characterized in that the buffering member (6) is a spring.
6. The slag-tapping gushing buffering device for shield construction according to claim 1, wherein the buffering member (6) and the buffering cover (4) are connected by spot welding.
7. The slag-tapping gushing buffering device for shield construction according to claim 1, wherein a belt conveyor fixing frame (15) is fixedly arranged at the bottom of the skirt scraper lifting belt conveyor (5), and walking wheels (16) are fixedly arranged on the belt conveyor fixing frame (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120780615.6U CN215408656U (en) | 2021-04-16 | 2021-04-16 | Slag discharge surge buffering device for shield construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120780615.6U CN215408656U (en) | 2021-04-16 | 2021-04-16 | Slag discharge surge buffering device for shield construction |
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| CN215408656U true CN215408656U (en) | 2022-01-04 |
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| CN202120780615.6U Active CN215408656U (en) | 2021-04-16 | 2021-04-16 | Slag discharge surge buffering device for shield construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113120519A (en) * | 2021-04-16 | 2021-07-16 | 中铁工程服务有限公司 | Slag discharge surge buffering device for shield construction and construction method thereof |
| CN114803410A (en) * | 2022-05-17 | 2022-07-29 | 中国水利水电第七工程局有限公司 | Splash concrete recovery device of large-scale concrete pipe making equipment |
-
2021
- 2021-04-16 CN CN202120780615.6U patent/CN215408656U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113120519A (en) * | 2021-04-16 | 2021-07-16 | 中铁工程服务有限公司 | Slag discharge surge buffering device for shield construction and construction method thereof |
| CN114803410A (en) * | 2022-05-17 | 2022-07-29 | 中国水利水电第七工程局有限公司 | Splash concrete recovery device of large-scale concrete pipe making equipment |
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