Rotary auxiliary deslagging system of slurry shield tunneling machine

Abstract

The invention relates to the technical field of tunnel engineering, in particular to a slurry shield tunneling machine rotation auxiliary deslagging system which comprises a main barrel, a feeding port, a first spiral conveying assembly, a second spiral conveying assembly, two driving parts, a spiral gate and a slurry discharging assembly. The first spiral conveying assembly and the second spiral conveying assembly are both arranged in a cavity of the main barrel, the two driving parts are used for driving the first spiral conveying assembly and the second spiral conveying assembly to work respectively, the spiral gate is arranged on the main barrel through the feeding port, the slurry discharging assembly is arranged on the main barrel and communicates with the cavity of the main barrel, and the slurry discharging assembly is arranged on the main barrel and communicates with the cavity of the main barrel. In this way, the technical problems that in the prior art, when a cutter head cuts a soil layer containing a large number of rocks, large solid particles are prone to being deposited at the bottom of a soil cabin, so that the phenomenon of cabin accumulation and stagnant discharging occurs, and for this purpose, a traditional slurry discharging method is incomplete in slurry discharging, low in working efficiency and prone to being blocked are solved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel engineering, and in particular to a rotary auxiliary slag discharge system for a slurry shield machine. Background Art

[0002] In the tunneling operation of the shield machine, for mud treatment, a mud pump is usually used to extract a mixture of slag and slurry from the soil chamber and discharge it through a pipeline;

[0003] However, when the cutter disc cuts a soil layer containing a large amount of rocks, these larger solid particles tend to settle at the bottom of the soil compartment, causing the compartment to accumulate and drain. In response to this, traditional slurry discharge methods have the problems of incomplete slurry discharge, low work efficiency, and easy equipment blockage. Summary of the invention

[0004] The object of the present invention is to provide a rotary auxiliary slag discharge system for a slurry shield machine, aiming to solve the problem in the prior art that when the cutter disc cuts a soil layer containing a large amount of rock, these larger solid particles are easily deposited at the bottom of the soil compartment, resulting in accumulation and drainage stagnation. In this regard, the traditional slurry discharge method has the technical problems of incomplete slurry discharge, low working efficiency and easy clogging of the equipment.

[0005] To achieve the above-mentioned purpose, the present invention adopts a rotary auxiliary slag discharge system of a slurry shield machine, including a main cylinder, a feed port, a first screw conveying assembly, a second screw conveying assembly, two driving members, a screw gate and a slurry discharge assembly. The main cylinder is installed on the shield body of the shield machine, the first screw conveying assembly and the second screw conveying assembly are both arranged in the cavity of the main cylinder, the two driving members are respectively used to drive the first screw conveying assembly and the second screw conveying assembly to work, the screw gate is arranged on the main cylinder through the feed port, the slurry discharge assembly is arranged on the main cylinder, and the slurry discharge assembly is connected to the cavity of the main cylinder.

[0006] Wherein, the slurry discharge assembly includes a slurry discharge port and a hydraulic ball valve. The slurry discharge port is arranged on the main cylinder body and is connected with the cavity of the main cylinder body. The hydraulic ball valve is arranged on the slurry discharge port.

[0007] Wherein, the first spiral conveying assembly includes a long spiral shaft and a first spiral blade, the long spiral shaft is fixedly connected to the output end of the corresponding driving member, and the first spiral blade is fixedly connected to the outer wall of the long spiral shaft.

[0008] Wherein, the second spiral conveying assembly includes a short spiral shaft and a second spiral blade, the short spiral shaft is fixedly connected to the output end of the corresponding driving member, and the second spiral blade is fixedly connected to the outer wall of the short spiral shaft.

[0009] Wherein, a plurality of filtering holes are arranged on the first spiral blade and the second spiral blade.

[0010] Wherein, the screw gate includes a base, a gate plate and a gate cylinder, the base is connected to the feed port, the gate cylinder is installed on the base, and the output end of the gate cylinder is fixedly connected to the gate plate.

[0011] Wherein, the rotary auxiliary slag removal system of the slurry shield machine also includes a telescopic oil cylinder, which is installed on the main cylinder, and the output end of the telescopic oil cylinder is connected to the feed port.

[0012] Wherein, the driving component is a hydraulic motor.

[0013] The rotary auxiliary slag discharge system of a slurry shield machine of the present invention, when in use, firstly, the screw gate is opened, and the two driving members are started, and the two driving members respectively drive the first screw conveying assembly and the second screw conveying assembly to work, and when the first screw conveying assembly and the second screw conveying assembly are working, the slag and slurry of the mud enter the interior of the main cylinder from the screw gate, and the first screw conveying assembly and the second screw conveying assembly are used in coordination, so that the slag and slurry can be evenly mixed, and the impact of the slag and slurry on the first screw conveying assembly and the second screw conveying assembly can be buffered, and after the slag and slurry are transported to the designated position, they are discharged to the mud pump through the slurry discharge outlet to realize slurry discharge;

[0014] The present invention has the following beneficial effects:

[0015] Improve the transportation stability: the first screw conveying assembly and the second screw conveying assembly cooperate to carry out transportation, thus avoiding the problem of uneven load that may be caused by separate transportation and ensuring the stability of the slag discharge process;

[0016] Reduce the risk of blockage: The first spiral blade and the second spiral blade are installed in a staggered manner. The second spiral blade cooperates with the first spiral blade to stir and disperse the slag during the transportation of the slag by the first spiral blade, so that the slag with a larger particle size can be squeezed and crushed, and the mixing of mud and slag is enhanced, thereby effectively reducing the backlog and blockage of slag in the transportation path, improving the smoothness of the transportation system, and the slag that has been stirred and dispersed is easier to discharge;

[0017] Improve the slurry discharge efficiency: the first screw conveying assembly and the second screw conveying assembly work together, and together with the mud pump, the slurry can be discharged more efficiently and the retention time in the conveying system can be reduced;

[0018] Reduce equipment wear: By dispersing the load, the double helix design reduces the wear of a single helix blade, extends the service life of the equipment, and improves system durability;

[0019] Enhanced system reliability: The cooperation of the long spiral shaft and the short spiral shaft reduces the risk of failure and improves the reliability of the shield machine in a complex operating environment. At the same time, the system can flexibly adjust the conveying speed and discharge volume according to actual needs;

[0020] In this way, the problem in the prior art that when the cutter disc cuts a soil layer containing a large amount of rocks, these larger solid particles are easily deposited at the bottom of the soil compartment, resulting in accumulation and drainage. In this regard, the traditional slurry discharge method has the technical problems of incomplete slurry discharge, low working efficiency and easy clogging of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the result of installing the rotary auxiliary slag discharge system of the slurry shield machine of the present invention on the shield body.

[0023] Figure 2 It is a structural schematic diagram of a rotary auxiliary slag discharge system of a slurry shield machine of the present invention.

[0024] Figure 3 It is a structural schematic diagram from another perspective of the rotary auxiliary slag discharge system of the slurry shield machine of the present invention.

[0025] Figure 4 It is a partial structural schematic diagram of the rotary auxiliary slag discharge system of the slurry shield machine of the present invention.

[0026] Figure 5 It is a partial structural schematic diagram of the rotary auxiliary slag discharge system of the slurry shield machine of the present invention.

[0027] 101-main cylinder, 102-feed port, 103-drive part, 104-cavity, 105-discharge port, 106-hydraulic ball valve, 107-long spiral shaft, 108-first spiral blade, 109-short spiral shaft, 110-second spiral blade, 111-filter hole, 112-base, 113-gate plate, 114-gate cylinder, 115-telescopic cylinder, 116-inspection door. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0029] See also Figure 1 to Figure 5 ,in Figure 1 This is a schematic diagram of the result of installing the rotary auxiliary slag discharge system of the slurry shield machine of the present invention on the shield body. Figure 2 is a structural schematic diagram of a rotary auxiliary slag discharge system for a slurry shield machine according to the present invention, Figure 3 This is another perspective structural diagram of the rotary auxiliary slag discharge system of the slurry shield machine of the present invention. Figure 4 It is a partial structural schematic diagram of the rotary auxiliary slag discharge system of the slurry shield machine of the present invention, Figure 5 It is a partial structural schematic diagram of the rotary auxiliary slag discharge system of the slurry shield machine of the present invention.

[0030] The present invention provides a rotary auxiliary slag discharge system for a slurry shield machine, comprising a main cylinder 101, a feed port 102, a first screw conveying assembly, a second screw conveying assembly, two driving members 103, a screw gate and a slurry discharge assembly, wherein the main cylinder 101 is installed on a shield body of the shield machine, the first screw conveying assembly and the second screw conveying assembly are both arranged in a cavity 104 of the main cylinder 101, the two driving members 103 are respectively used to drive the first screw conveying assembly and the second screw conveying assembly to work, the screw gate is arranged on the main cylinder 101 through the feed port 102, the slurry discharge assembly is arranged on the main cylinder 101, and the slurry discharge assembly is communicated with the cavity 104 of the main cylinder 101;

[0031] The slurry discharge assembly includes a slurry discharge port 105 and a hydraulic ball valve 106 . The slurry discharge port 105 is disposed on the main cylinder 101 and communicates with the cavity 104 of the main cylinder 101 . The hydraulic ball valve 106 is disposed on the slurry discharge port 105 .

[0032] With respect to this specific embodiment, during specific use, first, the screw gate is opened, and the two driving members 103 are started. The two driving members 103 drive the first screw conveying assembly and the second screw conveying assembly to work respectively. When the first screw conveying assembly and the second screw conveying assembly are working, the slag and slurry of the mud enter the main cylinder 101 from the screw gate. By using the first screw conveying assembly and the second screw conveying assembly in coordination, the slag and slurry can be evenly mixed, and the impact of the slag and slurry on the first screw conveying assembly and the second screw conveying assembly can be buffered. After the slag and slurry are transported to the designated position, they are discharged to the mud pump through the slurry discharge port 105 to achieve slurry discharge.

[0033] The first spiral conveying assembly includes a long spiral shaft 107 and a first spiral blade 108, wherein the long spiral shaft 107 is fixedly connected to the output end of the corresponding driving member 103, and the first spiral blade 108 is fixedly connected to the outer wall of the long spiral shaft 107;

[0034] The second spiral conveying assembly includes a short spiral shaft 109 and a second spiral blade 110, wherein the short spiral shaft 109 is fixedly connected to the output end of the corresponding driving member 103, and the second spiral blade 110 is fixedly connected to the outer wall of the short spiral shaft 109;

[0035] A plurality of filter holes 111 are disposed on the first spiral blade 108 and the second spiral blade 110 .

[0036] According to this specific embodiment, the long spiral shaft 107 drives the first spiral blade 108 to rotate and the short spiral shaft 109 drives the second spiral blade 110 to rotate to cooperate for transportation, avoiding the problem of uneven load that may be caused by separate transportation and ensuring the stability of the slag discharge process.

[0037] Secondly, the screw gate includes a base 112 , a gate plate 113 and a gate cylinder 114 . The base 112 is connected to the feed port 102 , the gate cylinder 114 is installed on the base 112 , and the output end of the gate cylinder 114 is fixedly connected to the gate plate 113 .

[0038] According to this specific embodiment, the gate cylinder 114 drives the gate plate 113 to open and close, so that the feed port 102 can be opened and closed quickly.

[0039] Meanwhile, the rotary auxiliary slag removal system of the slurry shield machine further comprises a telescopic oil cylinder 115 , which is mounted on the main cylinder 101 , and the output end of the telescopic oil cylinder 115 is connected to the feed port 102 .

[0040] According to this specific embodiment, the feed port 102 is driven to penetrate into the bottom of the mud tank by the telescopic cylinder 115 .

[0041] In addition, an inspection door 116 is also provided on the main cylinder 101 .

[0042] According to this specific embodiment, the inspection door 116 is provided to facilitate inspection of the interior of the main cylinder 101 .

[0043] A rotary auxiliary slag discharge system for a slurry shield machine using the present embodiment is used. When in use, first, the screw gate is opened, and the two driving members 103 are started. The two driving members 103 drive the first screw conveying assembly and the second screw conveying assembly to work respectively. When the first screw conveying assembly and the second screw conveying assembly are working, the slag and slurry of the mud enter the main cylinder 101 from the screw gate. The first screw conveying assembly and the second screw conveying assembly are used in coordination to allow the slag and slurry to be evenly mixed, and the impact of the slag and slurry on the first screw conveying assembly and the second screw conveying assembly can be buffered. After the slag and slurry are transported to the designated position, they are discharged through the slurry discharge outlet to the mud pump to achieve slurry discharge.

[0044] The present invention has the following beneficial effects:

[0045] Improve the transportation stability: the first screw conveying assembly and the second screw conveying assembly cooperate to carry out transportation, thus avoiding the problem of uneven load that may be caused by separate transportation and ensuring the stability of the slag discharge process;

[0046] Reduce the risk of blockage: the first spiral blade 108 and the second spiral blade 110 are installed in a staggered manner. The second spiral blade 110 cooperates with the first spiral blade 108 to stir and disperse the slag during the transportation of the slag by the first spiral blade 108, so that the slag with a larger particle size can be squeezed and crushed, and the mixing of the slurry and the slag is enhanced, thereby effectively reducing the backlog and blockage of the slag in the transportation path, improving the smoothness of the transportation system, and the slag that has been stirred and dispersed is more convenient to be discharged through the slurry discharge port 105;

[0047] Improve the slurry discharge efficiency: the first screw conveying assembly and the second screw conveying assembly work together, and together with the mud pump, the slurry can be discharged more efficiently and the retention time in the conveying system can be reduced;

[0048] Reduce equipment wear: By dispersing the load, the double helix design reduces the wear of a single helix blade, extends the service life of the equipment, and improves system durability;

[0049] Enhanced system reliability: The cooperation between the long spiral shaft 107 and the short spiral shaft 109 reduces the risk of failure and improves the reliability of the shield machine in a complex operating environment. At the same time, the system can flexibly adjust the conveying speed and discharge volume according to actual needs;

[0050] In this way, the problem in the prior art that when the cutter disc cuts a soil layer containing a large amount of rocks, these larger solid particles are easily deposited at the bottom of the soil compartment, resulting in accumulation and drainage. In this regard, the traditional slurry discharge method has the technical problems of incomplete slurry discharge, low working efficiency and easy clogging of equipment.

[0051] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A rotary auxiliary slag discharge system for a slurry shield machine, characterized in that: It includes a main cylinder, a feed port, a first screw conveying assembly, a second screw conveying assembly, two driving members, a screw gate and a slurry discharge assembly. The main cylinder is installed on the shield body of the shield machine. The first screw conveying assembly and the second screw conveying assembly are both arranged in the cavity of the main cylinder. The two driving members are respectively used to drive the first screw conveying assembly and the second screw conveying assembly to work. The screw gate is arranged on the main cylinder through the feed port. The slurry discharge assembly is arranged on the main cylinder, and the slurry discharge assembly is connected to the cavity of the main cylinder.

2. The rotary auxiliary slag removal system of a slurry shield machine according to claim 1, characterized in that: The slurry discharge assembly includes a slurry discharge port and a hydraulic ball valve. The slurry discharge port is arranged on the main cylinder body and is connected with the cavity of the main cylinder body. The hydraulic ball valve is arranged on the slurry discharge port.

3. The rotary auxiliary slag removal system of a slurry shield machine according to claim 2, characterized in that: The first spiral conveying assembly includes a long spiral shaft and a first spiral blade. The long spiral shaft is fixedly connected to the output end of the corresponding driving member, and the first spiral blade is fixedly connected to the outer wall of the long spiral shaft.

4. The rotary auxiliary slag removal system of a slurry shield machine according to claim 3, characterized in that: The second spiral conveying assembly includes a short spiral shaft and a second spiral blade. The short spiral shaft is fixedly connected to the output end of the corresponding driving member, and the second spiral blade is fixedly connected to the outer wall of the short spiral shaft.

5. The rotary auxiliary slag removal system of a slurry shield machine according to claim 4, characterized in that: A plurality of filtering holes are arranged on the first spiral blade and the second spiral blade.

6. The rotary auxiliary slag removal system of a slurry shield machine according to claim 5, characterized in that: The screw gate comprises a base, a gate plate and a gate oil cylinder. The base is connected to the feed port, the gate oil cylinder is installed on the base, and the output end of the gate oil cylinder is fixedly connected to the gate plate.

7. The rotary auxiliary slag removal system of a slurry shield machine according to claim 6, characterized in that: The rotary auxiliary slag removal system of the slurry shield machine also includes a telescopic oil cylinder, which is installed on the main cylinder, and the output end of the telescopic oil cylinder is connected to the feed port.

8. The rotary auxiliary slag removal system of a slurry shield machine according to claim 7, characterized in that: The driving member is a hydraulic motor.

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