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Pre-agitating system and wet spraying machine

A wet spraying machine and pre-mixing technology, which is applied to cement mixing devices, shaft equipment, shaft linings, etc., can solve the problems of low concrete mixing quality and inability to add water accurately, so as to reduce labor intensity, improve operating efficiency, and improve The effect of precision

Inactive Publication Date: 2012-12-19
SANY HEAVY IND CO LTD (CN)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention aims to provide a pre-mixing system and a wet spraying machine to solve the problem of low concrete mixing quality caused by the inability to add water accurately in the existing concrete mixing system for wet spraying machines

Method used

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Embodiment Construction

[0024] It should be pointed out that the description and sequence of specific structures in this section are only descriptions of specific embodiments, and should not be considered as limiting the protection scope of the present invention. In addition, the embodiments in this section and the features in the embodiments can be combined with each other under the condition of no conflict.

[0025] Please refer to figure 1 , and combined with Figure 2 to Figure 5 . The wet spraying machine and the pre-mixing system provided by the embodiments of the present invention will be described in detail below according to these drawings.

[0026] As shown in the figure, the pre-mixing system 1 of this embodiment mainly includes a mixing hopper 11, a control device (not shown in the figure), a signal converter 12, a first water inlet pipeline 13, a first solenoid valve 14, a first flow meter 15. The second water inlet pipeline 18, the second solenoid valve 17 and the second flow meter 1...

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Abstract

The invention discloses a pre-agitating system and a wet spraying machine. The pre-agitating system comprises an agitating hopper, a water inlet pipeline, an electromagnetic valve, a flow meter and a control device. A discharging valve is arranged at the bottom of the agitating hopper, and the electromagnetic valve and the flow meter are serially arranged on the water inlet pipeline which is communicated with the agitating hopper. The control device is in signal connection with the electromagnetic valve and the flow meter, and used for setting the water feeding volume of the agitating hopper, determining whether the volume of water fed by the water inlet pipe into the agitating hopper reaches the water feeding volume or not according to information fed back by the meter flow, and controlling the electromagnetic valve to close when the water feeding volume is reached. The electromagnetic valve and the flow meter on the water inlet pipeline are controlled in real time by the control device to supply the water feeding volume in corresponding proportion to the drying material feeding volume to the agitating hopper, namely automatic precise water feeding is realized, and accordingly concrete agitating quality can be guaranteed. The invention further provides the wet spraying machine with the pre-agitating system.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a pre-mixing system and a wet spraying machine. Background technique [0002] At present, most of the concrete support spraying equipment for underground coal mine tunnels in China use dry spraying machines and tidal spraying machines. Dry spraying and tidal spraying are basically similar in spraying process and machinery, and the construction characteristics are basically similar. There is a slight difference in the aggregate pre-mixing process (the former adds water), but the shortcomings of dry spraying and tidal spraying machine equipment are more obvious. : The construction quality is not easy to guarantee, the construction rebound is large (30% to 50%), and the environment is poor, resulting in high incidence of pneumoconiosis, high labor intensity, and low production efficiency. [0003] The wet spraying process can solve the above problems very well. Therefore, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10B28C5/08
Inventor 王尤毅赵玉坤周皇
Owner SANY HEAVY IND CO LTD (CN)
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