Tunnel spraying and mixing anti-pollution device

Abstract

The utility model provides a tunnel spraying and mixing anti-pollution device, and relates to the technical field of tunneling construction, the device comprises a material receiving disc, the material receiving disc is provided with a mounting hole, and the mounting hole is used for allowing a spraying and mixing nozzle to be inserted into the material receiving disc; the first connecting piece is arranged on the material receiving disc, and the first connecting piece is used for being connected with the rotating ring, so that the material receiving disc drives the spraying and mixing nozzle to rotate along with the rotating ring; and the material guide pipe is inserted into the material receiving disc so as to guide the concrete rebound material in the material receiving disc to flow to the side of the tunnel boring machine. According to the tunnel spraying and mixing anti-pollution device, the problem that a shield system below the spraying position is polluted due to the fact that sprayed concrete falls back can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel excavation construction, and in particular to a tunnel spray-mixing anti-pollution device. Background Art

[0002] A tunnel boring machine is a tunnel construction machine that uses a rotary cutter to dig, crush the surrounding rock in the hole, and excavate to form the entire tunnel section. It mainly includes a cutter head, a shield system, and a spray-mix system. The spray-mix system is the core part of the tunnel boring machine. When the tunnel boring machine encounters broken surrounding rock during excavation, it can be sprayed and reinforced to prevent the broken surrounding rock from collapsing and affecting the normal excavation of the tunnel boring machine.

[0003] At present, the existing spray-mixing system includes a concrete mixing tank, a concrete pump and a spray-mixing nozzle. The concrete mixing tank quickly mixes cement, sand and other materials into concrete, and then the concrete is pumped to the spray-mixing nozzle through the concrete pump. The spray-mixing nozzle sprays concrete to the broken part of the surrounding rock through manual guidance to play a reinforcement role.

[0004] However, when the above-mentioned spray-mixing system is in spray-mixing operation, the sprayed concrete will fall back under the action of gravity, thereby contaminating the shield system below the spraying point and affecting the normal excavation of the tunnel boring machine. Utility Model Content

[0005] In view of this, the present application provides a tunnel spray-mixing anti-pollution device to solve the problem that the shield system below the spraying point is polluted due to the fallback of the sprayed concrete.

[0006] In order to achieve the above-mentioned purpose, the present application provides a tunnel spray-mixing anti-pollution device, which adopts the following technical solutions:

[0007] The present application provides a tunnel spray-mixing anti-pollution device, which is used for a spray-mixing system of a tunnel boring machine, wherein the spray-mixing system comprises a spray-mixing nozzle, and the tunnel boring machine is further provided with a rotating ring, wherein the rotating ring is used to circumferentially install a steel arch frame to the inner wall of the tunnel to reinforce and support the tunnel, and wherein the tunnel spray-mixing anti-pollution device comprises a material receiving tray, wherein a mounting hole is provided on the material receiving tray, and wherein the mounting hole is used for the spray-mixing nozzle to be inserted into the material receiving tray;

[0008] A first connecting member, the first connecting member is disposed on the material receiving tray, and the first connecting member is used to connect with the rotating ring, so that the material receiving tray drives the spray mixing nozzle to rotate along with the rotating ring;

[0009] A material guide pipe is inserted into the material receiving tray to guide the concrete falling material in the material receiving tray to flow to the side of the tunnel boring machine.

[0010] In a possible implementation, the receiving tray includes a bottom plate and a side plate arranged around the periphery of the bottom plate, and the side plate is arranged to be inclined toward the outside of the bottom plate;

[0011] The bottom plate is provided with the mounting hole.

[0012] In a possible implementation, the first connecting member is disposed on the side plate;

[0013] The first connecting member includes a first connecting plate and a second connecting plate, the number of the first connecting plates is set to at least two, the first connecting plates are spaced apart in a direction perpendicular to the side plates, the second connecting plates are mounted on the ends of the first connecting plates away from the side plates, and the second connecting plates are provided with connecting holes for connecting with the rotating ring.

[0014] In a possible implementation, the bottom plate is further provided with a first through hole;

[0015] The number of the material guide tubes and the first through holes is set to at least two, each of the material guide tubes is correspondingly inserted into each of the first through holes, and each of the first through holes is arranged on both sides of the mounting hole along the rotation direction of the receiving plate.

[0016] In a possible implementation, it also includes a material blocking component;

[0017] The material baffle assembly includes a first baffle plate, which is arranged around the periphery of the side plate to form a material receiving opening. The diameter of the material receiving opening is larger than the diameter of the area surrounded by the side plate. The side plate and the first baffle plate are arranged to be detachably connected.

[0018] In a possible implementation, the material blocking assembly further includes a second baffle;

[0019] The second baffle is arranged around the periphery of the first baffle, and the first baffle and the second baffle are arranged to be detachably connected.

[0020] In a possible implementation manner, at least one of the first baffle plate and the second baffle plate is a rubber plate.

[0021] In a possible implementation, it also includes a support frame;

[0022] The side plate is provided with a second connecting member, the support frame is detachably connected to the second connecting member, and the support frame is used to support the first baffle plate and the second baffle plate.

[0023] In a possible implementation, a mounting channel is formed in the second connecting member, and the support frame is inserted into the second connecting member through the mounting channel;

[0024] The support frame and the first baffle plate and the second baffle plate are all configured to be detachably connected.

[0025] In a possible implementation, the support frame includes a support arm, a first support member and a second support member, and the support arm, the first support member and the second support member are connected in sequence, wherein the support arm is inserted in the installation channel, and the first support member and the second support member correspondingly support the first baffle and the second baffle.

[0026] The present application provides a tunnel spray-mixing anti-pollution device, comprising a receiving tray, a first connecting piece and a material guide pipe. When a tunnel boring machine needs to spray-mix the surrounding rock fragments during the excavation process, since the receiving tray is connected to the rotating ring through the first connecting piece, and the spray-mixing nozzle is inserted on the receiving tray through the mounting hole, the receiving tray can drive the spray-mixing nozzle to rotate with the rotating ring, so that the spray-mixing nozzle can perform circumferential spray-mixing operations. At the same time, concrete is sprayed to the surrounding rock fragments through the spray-mixing nozzle. Due to the gravity of the concrete itself, the concrete that fails to be adsorbed on the surrounding rock fragments will fall back into the receiving tray below the spraying location. At this time, the receiving tray can prevent the falling concrete from polluting the shield system below the spraying location. When the concrete falling material accumulates in the receiving tray and reaches a certain amount, the material guide pipe inserted on the receiving tray will guide the concrete falling material to flow to the side of the tunnel boring machine to ensure that the receiving tray can continue to receive materials.

[0027] Therefore, by providing the receiving tray, the first connecting member and the material guide pipe, the problem of the shield system below the injection point being contaminated due to the fall back of the injected concrete is solved, which not only improves the safety of the tunnel boring machine during the excavation process, but also extends the overall service life of the tunnel boring machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to illustrate and explain the present application, and the present application is not limited to the specific implementation methods described below.

[0029] Figure 1 A schematic diagram of the structure of a tunnel spray-mixing anti-pollution device provided in an embodiment of the present application;

[0030] Figure 2 for Figure 1 Schematic diagram of the structure of the center receiving tray;

[0031] Figure 3 for Figure 1 Schematic diagram of the structure of the middle support frame.

[0032] Description of reference numerals:

[0033] 100- receiving tray;

[0034] 110- bottom plate;

[0035] 111 - mounting hole; 112 - first through hole;

[0036] 120-side panels;

[0037] 121- second connecting member;

[0038] 200-first connecting member;

[0039] 210-first connecting plate;

[0040] 220- second connecting plate;

[0041] 221-connection hole;

[0042] 300- material guide pipe;

[0043] 400- material blocking assembly;

[0044] 410-first baffle; 420-second baffle;

[0045] 500-support frame;

[0046] 510 - support arm; 520 - first support member; 530 - second support member.

[0047] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution in this application and how the technical solution in this application solves the above-mentioned technical problems will be clearly and completely described below with specific embodiments and in combination with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0052] In the embodiments of the present application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0053] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0054] A tunnel boring machine is a tunnel construction machine that uses a rotating cutter to excavate, crush the surrounding rock in the hole, and excavate to form the entire tunnel section. It mainly includes a cutter head, a shield system, and a spray-mix system. The spray-mix system is the core part of the tunnel boring machine. When the tunnel boring machine encounters broken surrounding rock during excavation, it can be sprayed with concrete to prevent the broken surrounding rock from collapsing and affecting the normal excavation of the tunnel boring machine.

[0055] At present, the existing spray-mixing system includes a concrete mixing tank, a concrete pump and a spray-mixing nozzle. The concrete mixing tank quickly mixes cement, sand and other materials into concrete, and then the concrete is pumped to the spray-mixing nozzle through the concrete pump. The spray-mixing nozzle sprays concrete to the broken part of the surrounding rock through manual guidance to play a reinforcement role.

[0056] However, when the above-mentioned spray-mixing system is in spray-mixing operation, the sprayed concrete will fall back under the action of gravity, thereby contaminating the shield system below the spraying point and affecting the normal excavation of the tunnel boring machine.

[0057] Based on this, the present application provides a tunnel spray-mixing anti-pollution device, including a receiving tray, a first connecting piece and a material guide pipe. When the tunnel boring machine needs to perform spray-mixing operations on the surrounding rock crushing area during the excavation process, since the receiving tray is connected to the rotating ring through the first connecting piece, and the spray-mixing nozzle is inserted on the receiving tray through the mounting hole, the receiving tray can drive the spray-mixing nozzle to rotate with the rotating ring, so that the spray-mixing nozzle can perform circumferential spray-mixing operations. At the same time, concrete is sprayed to the surrounding rock crushing area through the spray-mixing nozzle. Due to the gravity of the concrete itself, the concrete that fails to be adsorbed on the surrounding rock crushing area will fall back into the receiving tray below the injection area. At this time, the receiving tray can prevent the fallen concrete from polluting the shield system below the injection area. When the concrete falling material accumulates in the receiving tray and reaches a certain amount, the material guide pipe inserted on the receiving tray will guide the concrete falling material to flow to the side of the tunnel boring machine to ensure that the receiving tray can continue to receive materials.

[0058] Therefore, by providing the receiving tray, the first connecting member and the material guide pipe, the problem of the shield system below the injection point being contaminated due to the fall back of the injected concrete is solved, which not only improves the safety of the tunnel boring machine during the excavation process, but also extends the overall service life of the tunnel boring machine.

[0059] The technical solution of the present application is described in detail below with reference to the accompanying drawings using specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0060] A tunnel spray-mixing anti-pollution device provided in an embodiment of the present application is used for a spray-mixing system of a tunnel boring machine. The spray-mixing system includes a spray-mixing nozzle. A rotating ring is also provided on the tunnel boring machine. The rotating ring is used to circumferentially install a steel arch frame to the inner wall of the tunnel to reinforce and support the tunnel.

[0061] Reference Figure 1 and Figure 2 As shown, the tunnel spray-mixing anti-pollution device includes a receiving tray 100, on which a mounting hole 111 is opened, and the mounting hole 111 is used for inserting a spray-mixing nozzle on the receiving tray 100; a first connecting member 200, which is arranged on the receiving tray 100, and the first connecting member 200 is used to connect with a rotating ring so that the receiving tray 100 drives the spray-mixing nozzle to rotate with the rotating ring; a material guide pipe 300, which is inserted on the receiving tray 100 to guide the concrete falling material in the receiving tray 100 to flow to the side of the tunnel boring machine.

[0062] It should be noted that in the present application, there is no restriction on the connection method between the receiving tray 100 and the rotating ring. The receiving tray 100 and the rotating ring can be rotatably connected by a first connecting member, that is, no matter where the receiving tray 100 rotates with the rotating ring, it remains in a horizontal state. At this time, the receiving tray 100 plays a role in blocking and accommodating the concrete falling material. When the concrete falling material accumulates in the receiving tray 100 and reaches a certain amount, the material guide pipe 300 guides the concrete falling material to flow to the side of the tunnel boring machine.

[0063] In this embodiment, the receiving tray 100 and the rotating ring are fixedly connected by a first connecting member. When the receiving tray 100 rotates to the top along with the rotating ring, the receiving tray 100 plays a role in blocking and accommodating the falling concrete. When the receiving tray 100 rotates to the side and bottom along with the rotating ring, the falling concrete accumulated in the receiving tray 100 will flow to the side of the tunnel boring machine along the gap between the receiving tray 100 and the tunnel wall under the action of gravity, and the remaining falling concrete attached to the inner wall of the receiving tray 100 will flow to the side of the tunnel boring machine under the guidance of the material guide pipe 300.

[0064] In the present application, when the tunnel boring machine needs to spray mix the surrounding rock during the excavation process, since the receiving tray 100 is connected to the rotating ring through the first connecting piece 200, and the spray mixing nozzle is inserted into the receiving tray 100 through the mounting hole 111, the receiving tray 100 can drive the spray mixing nozzle to rotate with the rotating ring, so that the spray mixing nozzle can perform circumferential spray mixing. At the same time, concrete is sprayed to the surrounding rock broken part through the spray mixing nozzle. Due to the gravity of the concrete itself, the concrete that fails to be adsorbed on the surrounding rock broken part will fall back into the receiving tray 100 below the injection point. At this time, the receiving tray 100 can prevent the falling concrete from polluting the shield system below the injection point. When the concrete falling material accumulates in the receiving tray 100 and reaches a certain amount, the guide pipe 300 inserted into the receiving tray 100 will guide the concrete falling material to flow to the side of the tunnel boring machine to ensure that the receiving tray 100 can continue to receive materials.

[0065] Therefore, by providing the receiving tray 100, the first connecting member 200 and the material guide pipe 300, the problem of the shield system below the injection point being contaminated due to the fallback of the injected concrete is solved, which not only improves the safety of the tunnel boring machine during the excavation process, but also extends the overall service life of the tunnel boring machine.

[0066] In some embodiments, the receiving tray 100 includes a bottom plate 110 and side plates 120 arranged around the periphery of the bottom plate 110 , and the side plates 120 are arranged to be inclined toward the outside of the bottom plate 110 ; a mounting hole 111 is opened on the bottom plate 110 .

[0067] In the above embodiment, the side panel 120 is inclined toward the outer side of the bottom plate 110. Compared with the side panel 120 being arranged perpendicular to the bottom plate 110, on the one hand, the bearing capacity of the receiving tray 100 is improved, which can effectively prevent the concrete falling material from overflowing from the receiving tray 100 too quickly and causing the shield system under the receiving tray 100 to be contaminated. On the other hand, the material receiving area of ​​the receiving tray 100 is expanded, thereby improving the material receiving capacity of the receiving tray 100.

[0068] In some embodiments, the first connecting member 200 is disposed on the side plate 120; the first connecting member 200 includes a first connecting plate 210 and a second connecting plate 220, the number of the first connecting plates 210 is set to at least two, each first connecting plate 210 is spaced apart in a direction perpendicular to the side plate 120, the second connecting plate 220 is mounted on the end of each first connecting plate 210 away from the side plate 120, and a connecting hole 221 is opened on the second connecting plate 220 for connecting with the rotating ring.

[0069] In the above embodiment, since the receiving tray 100 is connected to the rotating ring through the first connecting member 200, and the spray mixing nozzle is inserted into the receiving tray 100 through the mounting hole 111, the receiving tray 100 can drive the spray mixing nozzle to rotate with the rotating ring, so that the spray mixing nozzle can perform circumferential spray mixing operations.

[0070] At the same time, multiple first connecting plates 210 are provided to improve the stability of the connection between the receiving plate 100 and the rotating ring, ensuring that the spray mixing nozzle can rotate smoothly with the rotating ring during the circumferential spray mixing operation, thereby avoiding the spray mixing accuracy being reduced due to the spray mixing nozzle shaking back and forth, resulting in waste of concrete.

[0071] In some embodiments, a first through hole 112 is further provided on the base plate 110; the number of the material guide tubes 300 and the first through holes 112 are both set to at least two, each material guide tube 300 is correspondingly inserted into each first through hole 112, and each first through hole 112 is arranged on both sides of the mounting hole 111 along the rotation direction of the receiving plate 100.

[0072] In the above embodiment, a plurality of guide tubes 300 are provided, and each guide tube 300 is inserted on both sides of the mounting hole 111 along the rotation direction of the receiving tray 100. Compared with the single-sided setting of the guide tube 300, the problem of the concrete falling material accumulating on the other side and the guide tube 300 being unable to guide can be avoided, ensuring that the receiving tray 100 can continuously receive the material. At the same time, if the concrete falling material accumulates on the other side and the guide tube 300 is unable to guide it in time, the weight on both sides of the receiving tray 100 will be inconsistent. On the one hand, the connection pressure between the first connecting member 200 and the receiving tray 100 is increased, and on the other hand, the spray mixing nozzle inserted on the receiving tray 100 will be offset, resulting in a decrease in the spray mixing accuracy of the spray mixing nozzle.

[0073] In some embodiments, a material blocking assembly 400 is also included; the material blocking assembly 400 includes a first baffle plate 410, and the first baffle plate 410 is arranged around the periphery of the side plate 120 to form a material receiving opening, the diameter of the material receiving opening is larger than the diameter of the area enclosed by the side plate 120, and the side plate 120 and the first baffle plate 410 are arranged to be detachably connected.

[0074] In the above embodiment, the first baffle 410 is added to further expand the material receiving area of ​​the material receiving tray 100, thereby improving the overall material receiving capacity of the tunnel spray mixing anti-pollution device.

[0075] At the same time, the side panel 120 and the first baffle 410 are arranged to be detachably connected. When the first baffle 410 is damaged or the concrete fallback material attached to the first baffle 410 is too thick to be cleaned, the first baffle 410 can be replaced, which is convenient for subsequent maintenance by the staff.

[0076] In some embodiments, the material blocking assembly 400 further includes a second baffle plate 420 ; the second baffle plate 420 is disposed around the periphery of the first baffle plate 410 , and the first baffle plate 410 and the second baffle plate 420 are configured to be detachably connected.

[0077] In the above embodiment, a second baffle 420 is additionally provided. When the receiving tray 100 rotates to the side and the bottom following the rotating ring, the concrete falling material accumulated in the receiving tray 100 can be guided by the second baffle 420 and flow along the gap between the receiving tray 100 and the tunnel wall to the side of the tunnel boring machine, thereby cooperating with the material guide pipe 300 to process the concrete falling material inside the receiving tray 100.

[0078] Similarly, the first baffle 410 and the second baffle 420 are arranged to be detachably connected. When the second baffle 420 is damaged or the concrete fallback material attached to the second baffle 420 is too thick to be cleaned, only the second baffle 420 needs to be replaced, which is convenient for subsequent maintenance by the staff.

[0079] In some embodiments, at least one of the first baffle plate 410 and the second baffle plate 420 is a rubber plate.

[0080] It is understandable that, in the present application, there is no limitation on the specific materials of the first baffle 410 and the second baffle 420, which may be a wood board or a rubber board, etc. Specifically, in the present embodiment, at least one of the first baffle 410 and the second baffle 420 is set as a rubber board, and the advantages of the rubber board such as high toughness and high elasticity can be used to convert the rigid collision between the concrete falling material and the first baffle 410 and the second baffle 420 into a flexible collision, thereby reducing the impact of the concrete falling material on the first baffle 410 and the second baffle 420, and extending the service life of the first baffle 410 and the second baffle 420.

[0081] In some embodiments, a support frame 500 is further included; a second connecting member 121 is disposed on the side plate 120 , the support frame 500 is detachably connected to the second connecting member 121 , and the support frame 500 is used to support the first baffle plate 410 and the second baffle plate 420 .

[0082] In the above embodiment, a support frame 500 is provided to support the first baffle plate 410 and the second baffle plate 420, thereby enhancing the connection strength between the first baffle plate 410 and the side plate 120, and preventing the connection between the first baffle plate 410 and the side plate 120 from being damaged due to the adhesion of concrete falling materials to the first baffle plate 410 and the second baffle plate 420, resulting in the overall weight being too heavy, or due to the impact of concrete falling materials on the first baffle plate 410 and the second baffle plate 420.

[0083] In some embodiments, a mounting channel is formed in the second connecting member 121, and the support frame 500 is inserted into the second connecting member 121 through the mounting channel; the support frame 500 and the first baffle plate 410 and the second baffle plate 420 are all configured to be detachably connected.

[0084] Similarly, the support frame 500 and the side plate 120, the support frame 500 and the first baffle 410, and the second baffle 420 are all set to be detachably connected. When the support frame 500 is damaged, it only needs to be replaced, which is convenient for subsequent maintenance by the staff.

[0085] In some embodiments, the support frame 500 includes a support arm 510, a first support member 520 and a second support member 530, and the support arm 510, the first support member 520 and the second support member 530 are connected in sequence, wherein the support arm 510 is inserted into the installation channel, and the first support member 520 and the second support member 530 correspondingly support the first baffle 410 and the second baffle 420.

[0086] In the above embodiment, one end of the support frame 500 having the support arm 510 is inserted into the installation channel formed in the second connecting member 121, thereby improving the connection strength between the support frame 500 and the side panel 120, thereby improving the supporting capacity of the support frame 500 for the first baffle 410 and the second baffle 420.

[0087] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps disclosed in this application can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in this application can be achieved, and this document does not limit this.

[0088] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the principles of this application should be included in the protection scope of this application.

Claims

1. A tunnel spray-mixing anti-pollution device, used for a spray-mixing system of a tunnel boring machine, the spray-mixing system comprising a spray-mixing nozzle, the tunnel boring machine is also provided with a rotating ring, the rotating ring is used to circumferentially install a steel arch frame to the inner wall of the tunnel to reinforce and support the tunnel, characterized in that: The tunnel spray-mixing anti-pollution device comprises: A material receiving tray, wherein a mounting hole is provided on the material receiving tray, and the mounting hole is used for inserting the spray mixing nozzle on the material receiving tray; A first connecting member, the first connecting member is disposed on the material receiving tray, and the first connecting member is used to connect with the rotating ring, so that the material receiving tray drives the spray mixing nozzle to rotate along with the rotating ring; A material guide pipe is inserted on the material receiving tray to guide the concrete falling material in the material receiving tray to flow to the side of the tunnel boring machine.

2. The tunnel spray-mixing anti-pollution device according to claim 1 is characterized in that: The receiving tray comprises a bottom plate and a side plate arranged around the periphery of the bottom plate, wherein the side plate is arranged to be inclined toward the outer side of the bottom plate; The bottom plate is provided with the mounting hole.

3. The tunnel spray-mixing anti-pollution device according to claim 2 is characterized in that: The first connecting member is disposed on the side plate; The first connecting member includes a first connecting plate and a second connecting plate, the number of the first connecting plates is set to at least two, the first connecting plates are spaced apart in a direction perpendicular to the side plates, the second connecting plates are mounted on the ends of the first connecting plates away from the side plates, and the second connecting plates are provided with connecting holes for connecting with the rotating ring.

4. The tunnel spray-mixing anti-pollution device according to claim 2 is characterized in that: The bottom plate is also provided with a first through hole; The number of the material guide tubes and the first through holes is set to at least two, each of the material guide tubes is correspondingly inserted into each of the first through holes, and each of the first through holes is arranged on both sides of the mounting hole along the rotation direction of the receiving plate.

5. The tunnel spray-mixing anti-pollution device according to any one of claims 2 to 4, characterized in that: Also included is a material blocking assembly; The material baffle assembly includes a first baffle plate, which is arranged around the periphery of the side plate to form a material receiving opening. The diameter of the material receiving opening is larger than the diameter of the area surrounded by the side plate. The side plate and the first baffle plate are arranged to be detachably connected.

6. The tunnel spray-mixing anti-pollution device according to claim 5 is characterized in that: The material blocking assembly also includes a second baffle; The second baffle is arranged around the periphery of the first baffle, and the first baffle and the second baffle are arranged to be detachably connected.

7. The tunnel spray-mixing anti-pollution device according to claim 6 is characterized in that: At least one of the first baffle plate and the second baffle plate is a rubber plate.

8. The tunnel spray-mixing anti-pollution device according to claim 6, characterized in that: Also includes a support frame; The side plate is provided with a second connecting member, the support frame is detachably connected to the second connecting member, and the support frame is used to support the first baffle plate and the second baffle plate.

9. The tunnel spray-mixing anti-pollution device according to claim 8, characterized in that: A mounting channel is formed in the second connecting member, and the support frame is inserted into the second connecting member through the mounting channel; The support frame and the first baffle plate and the second baffle plate are all configured to be detachably connected.

10. The tunnel spray-mixing anti-pollution device according to claim 9, characterized in that: The support frame includes a support arm, a first support member and a second support member, and the support arm, the first support member and the second support member are connected in sequence, wherein the support arm is inserted into the installation channel, and the first support member and the second support member correspondingly support the first baffle and the second baffle.

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