Negative pressure type concrete wet-spray machine set

A concrete and negative pressure technology, which is applied in the field of negative pressure concrete wet spraying unit, can solve the problems of affecting the quality of the support, the inability to guarantee the quality of the concrete, and the lack of integration, so as to reduce the labor intensity of the workers, improve the working conditions of the workers, and operate Effects with ease of control

Inactive Publication Date: 2012-12-12
JIANGSU ZHONGJI MINE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Concrete spraying machines are divided into dry spraying machines and wet spraying machines according to the water content of the sprayed materials. The dust concentration next to the dry spraying machine is large, the spraying rebounds a lot, the working environment is extremely harsh, material waste and support quality are poor, so dry spraying The wet spraying machine is gradually replaced by the wet spraying machine. The wet spraying machine overcomes or partially overcomes the shortcomings of t

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  • Negative pressure type concrete wet-spray machine set
  • Negative pressure type concrete wet-spray machine set
  • Negative pressure type concrete wet-spray machine set

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing.

[0013] Such as Figures 1 to 3 As shown, a negative pressure concrete wet spraying unit includes a pneumatic conveying injector 2, a frame 13, a base 15, and the pneumatic conveying injector is fixed on the base 15 of the frame 13, including a hopper 17, a support frame 18, a wind turbine The pipe seat 19, the pneumatic conveying injector also includes a Venturi tube 16, and the negative pressure concrete wet spraying unit also includes a spiral batching stirring device; the Venturi tube 16 is fixed on the support frame 18 on the base 15, and is welded through its rear end The short round pipe of the air pipe is connected with the air pipe seat 19, and is connected with the hopper 17 through the short round pipe whose rear end is perpendicular to the axial direction; 4. Cement hopper 5, bearing 7, and bearing cover 8. The driving mechanism includes a transmission mechanism...

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Abstract

The invention discloses a negative pressure type concrete wet-spray machine set which comprises a pneumatic transmission sprayer (1), a rack (3), a venturi tube (16) and a spiral burdening and stirring device, wherein the venturi tube is fixed on a support frame (18) on a base, is connected with a wind pipe base (19) by a short circular pipe welded with the back end of the venturi tube, and is connected with a hopper (17) by a short circular pipe of which the back end is perpendicular to the axis direction; the spiral burdening and stirring device consists of a driving mechanism, a mixing hopper (1), a gravel hopper (3), a spiral stirring shaft (4), a cement hopper (5), a bearing (7) and a bearing cover (8), wherein two ends of the spiral stirring shaft are supported in the mixing hopper by the bearing, and the gravel hopper and the cement hopper are arranged above the mixed hopper of the end where the spiral mixing shaft is arranged. The negative pressure type concrete wet-spray machine set is compact in structure, and integrates the functions of burdening, stirring, transmitting and spraying, the work condition can be improved, the labor intensity can be reduced, the burdening can be exactly adjusted, and the negative pressure type concrete wet-spray machine set is stable in support quality and high in work efficiency.

Description

technical field [0001] The invention relates to a negative pressure concrete wet spraying unit, which belongs to the technical field of construction machinery. Background technique [0002] Concrete spraying machine is a kind of construction equipment widely used in underground engineering, geotechnical engineering and other fields. It uses compressed air as power to spray a certain proportion of mixed material through the pipeline at high speed to the surface to be sprayed and then solidifies and hardens. , thus forming a concrete support layer. Concrete spraying machines are divided into dry spraying machines and wet spraying machines according to the water content of the sprayed materials. The dust concentration next to the dry spraying machine is large, the spraying rebounds a lot, the working environment is extremely harsh, material waste and support quality are poor, so dry spraying The wet spraying machine is gradually replaced by the wet spraying machine. The wet sp...

Claims

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Application Information

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IPC IPC(8): E21D11/10E02D15/02
Inventor 李建平鲍建伟刘绪金程舒燕王愁
Owner JIANGSU ZHONGJI MINE EQUIP
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