Muck improver injection device for shield excavation
A technology of soil improver and injection device, which is applied in the direction of earth square drilling, mining equipment, tunnels, etc., and can solve problems such as inability to inject muck soil improver in place, poor sealing effect, and nozzle blockage, so as to achieve good injection effect and avoid injection The effect of blocking the channel and avoiding the failure of the seal
Inactive Publication Date: 2019-04-12
HUANGHE S & T COLLEGE
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Problems solved by technology
[0005] The object of the present invention is to provide a dregs modifier injection device for shield excavation, which solves the problem that the dregs modifier injection device cannot inject the dregs modifier in place, and the rubber of the dregs modifier spout is easy to wear or tear, The sealing effect is poor or invalid, and the nozzle is clogged.
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0030] see Figure 1-7 As shown, the present invention is a slag modifier injection device for shield excavation, including a nozzle 1, a nozzle ring 2, a center support plate 3 arranged in the middle of the nozzle ring 2, and a pressure ring 4 set on the nozzle ring 2. The elastic sealing plate 5 is made of polyurethane. The inner channel of the nozzle 1 is provided with a protective check valve, which prevents the fluid in the muck from entering the nozzle. The ...
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The invention discloses a muck modifier injection device for shield excavation, and relates to the technical field of medium conveying devices. The muck modifier injection device comprises a nozzle, anozzle ring, a middle supporting plate and an elastic sealing plate; an upper roller path is fixed to the circumferential side face of a pressing ring; a nozzle mechanism matching the upper roller path is arranged at the top of the upper roller path; a connecting ring is fixed to the bottom of the nozzle mechanism through a screw; and a lower roller path matching the upper roller path is fixed tothe connecting ring through a screw. Through the use of the nozzle mechanism, an improver can be uniformly sprayed into the muck around the nozzle mechanism through the nozzle, and the surrounding muck is stirred and crushed through a cross scraper and a protection cutter, so that the improver and the muck are more uniformly mixed, and the problems of mud cake formation of a cutter head and wrapping of a screw conveyor are avoided; and a nozzle ring cap can prevent muck from directly acting on nozzle rubber, and thereby avoiding the situation that sealing fails due to excessive abrasion of the rubber or the resilience force of rubber sealing is insufficient due to too much muck.
Description
technical field [0001] The invention belongs to the technical field of medium conveying devices, in particular to a device for injecting a dregs soil modifier for excavation of shield tunneling. Background technique [0002] The shield machine is a large-scale equipment for tunnel construction. The shield machine is a cylindrical steel component. When using the shield machine for construction, the shield machine cuts the soil while pushing forward along the tunnel axis. The shield machine The shell is the shield, which acts as a temporary support for the unlined tunnel section cut out by the shield machine. The cutting, soil discharge and lining of the shield machine are all carried out under the cover of the shield. [0003] During the construction of earth pressure balance shield tunneling, it is often necessary to inject muck modifier into the soil, and the muck modifier is delivered to the cutter head through the central rotary joint at the front of the shield machine to...
Claims
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IPC IPC(8): E21D9/06E21D9/08
CPCE21D9/0678
Inventor 陈涛李明宇王珍白杨刘军
Owner HUANGHE S & T COLLEGE