Discharging door sealing structure of asphalt cement plaster stirring host

Abstract

The invention provides a discharging door sealing structure of an asphalt cement plaster stirring host, which comprises a stirred vessel and a discharging door, wherein the stirred vessel is a vertical cylinder composed of a bottom and an arc-shaped side wall, and the bottom of the cylinder is provided with an upper and lower bilayer structure composed of a baseplate and a bottom lining plate andis also provided with a discharging port; the discharging door is platelike, abutted to the bottom of the stirred vessel, is capable of rotating horizontally between the position of starting the discharging port and the position of closing the discharging port under the driving of a driving mechanism of the door, and contains an upper and lower bilayer structure composed of a door plank and a door lining plate. The structure is characterized in that the sealing structure of the discharging door comprises a first attaching sealing surface, a second attaching sealing surface, a first sealing rubber and a second sealing rubber, wherein the first attaching sealing surface is formed at the edge of the discharging door and a discharging port edge of the cylinder, the second attaching sealing surface is formed at the upper end surface of the discharging door lining plate and the lower end surface of the arc-shaped side wall of the cylinder, the first sealing rubber is covered at bottom surface of the attaching position of the edge of the discharging door and the discharging port edge of the cylinder, and the second sealing rubber is covered at the external side of an attaching position of the discharging door lining plate and the arc-shaped side wall of the cylinder.

Description

technical field [0001] The invention relates to a sealing structure of a discharge door of an asphalt cement mortar mixing main engine, in particular to a sealing structure of a discharge door of a mixing main engine for mixing asphalt cement mortar for grouting a high-speed railway slag-free track slab. Background technique [0002] As is known, in the construction of high-speed railway with slag-free track slab, after the slag-free track slab is laid and calibrated, the gap between the bottom surface of the track slab and the bearing layer must be grouted to form a cushion with appropriate stiffness and elasticity to ensure The bearing capacity of the track slab. To obtain a full grouting layer that meets the requirements of the track system and construction technology, the grouting material must have the following characteristics: low viscosity and good fluidity, elasticity, compression resistance, corrosion resistance, and frost resistance; it can be poured under almost ...

AI Technical Summary

Problems solved by technology

The obvious difference between this kind of asphalt cement mortar and other mortars is: first, it has high requirements for components, proportioning and dosage accuracy; second, it puts forward some special requirements in terms of mixing, storage and transportation technology, such as: During the mixing process, the temperature of the mortar should not be too high or too low; the stirring speed should not be too high when starting to stir, otherwise the mortar may be damaged; there is a possibility of large particles settling during the mixing process; foam should be avoided during mixing to avoid damage to the mortar properties adversely affected; the mortar stiffens when it is at a standstill; the finished mortar has a short shelf life and loses its usability for grouting to quality requirements in a relatively short period of time; the mortar has limited pumpability

[0004] Tests have shown that using a fixed mixing station to mix, and then transporting or pumping the finished mortar to the construction site cannot meet the above production technical requirements

Using mobile mixing equipment to directly carry out mixing and pouring operations at the construction site, although it can solve the problems of storage and transportation of finished mortar, there are still some shortcomings in the mixing host of the existing mobile equipment, for example, the existing mixing mechanism Improvements are needed to meet the requirements of high-quality asphalt cement mortar mixing operations. The existing planetary transmission transmission mechanism has the disadvantages of poor sealing, complicated transmission mode, high manufacturing difficulty, and difficult maintenance and repair. The sealing of the material door needs to be further improved, etc.

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