Cement conveying and storage units for concrete mixing plants
A storage device and mixing station technology, applied in the direction of selling raw material supply devices, etc., can solve the problems of motor damage, difficult to clean up, and time-consuming, etc., and achieve the effects of simple structure, labor saving, and quick and convenient cleaning process.
Active Publication Date: 2016-12-07
广元市联动机械有限责任公司
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Problems solved by technology
During use, when the screw conveyor is shut down, there is always a small amount of residual cement in the delivery pipe due to the gap between the screw blade and the wall of the delivery pipe. When the shutdown time is long, the residual cement absorbs moisture and condenses in the delivery pipe. , when the machine is turned on again, the agglomeration may lead to a decline in the quality of the concrete, and serious agglomeration will cause the screw to break and the motor to be damaged
In practice, the conventional treatment method is to clean the residual cement in the pipe through the inspection hole when the machine is shut down.
Method used
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Embodiment Construction
[0010] Such as figure 1 As shown, the first embodiment of the present invention includes a screw conveyor 1 and a powder silo 2, the screw conveyor 1 includes a feeding pipe 3 with a spiral body inside, and the feeding pipe 3 is provided with a feed end 4 and a At the discharge end 5, the powder bin 2 is provided with a powder blowing pipe 6 and a dust collector 7 on the top of the bin, and also includes a high-pressure air injection mechanism 8 and a cement recovery pipe 9, and the high-pressure air injection mechanism 8 is provided with There is a first air valve 10, the high-pressure air injection mechanism 8 communicates with the lumen of the discharge end 5, the cement recovery pipe 9 is provided with an inlet end 11 and an outlet end 12, and the inlet end 11 is connected to the outlet end 12. The lumen of the feed end 4 is communicated, and the outlet end 12 is communicated with the powder blowing pipe 6 , and then communicated with the powder silo 2 . The principle is:...
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The invention discloses a cement conveying and storage device for a concrete batching plant. The cement conveying and storage device comprises a screw conveyer and a powder bin. The screw conveyer comprises a material-conveying pipe and a helical body is arranged in the material-conveying pipe. The material-conveying pipe is provided with a material inlet end and a material outlet end. The powder bin is provided with a powder blowing-in pipe and a bin top dust remover. The cement conveying and storage device is characterized in that the cement conveying and storage device also comprises a high-pressure air injection mechanism and a cement recovery pipe; the high-pressure air injection mechanism is provided with a first gas valve; the high-pressure air injection mechanism is communicated with the tube-shaped cavity of the material inlet end; the cement recovery pipe is provided with an inlet and an outlet; the inlet is communicated with the tube-shaped cavity of the material inlet end; and the outlet is communicated with the powder bin. The cement conveying and storage device has a simple structure, realizes fast and convenient cleaning, saves labor, and realizes thorough removal of cement residues in the material-conveying pipe after machine stopping so that cement can be recovered completely.
Description
technical field [0001] The invention relates to a construction machine, in particular to a cement delivery and storage device for a concrete mixing plant. Background technique [0002] The concrete mixing plant of the prior art usually consists of a powder silo, a screw conveyor, a weighing system, a mixing host, and a control system. During use, when the screw conveyor is shut down, there is always a small amount of residual cement in the delivery pipe due to the gap between the screw blade and the wall of the delivery pipe. When the shutdown time is long, the residual cement absorbs moisture and condenses in the delivery pipe. , When the machine is turned on again, the agglomeration may cause the quality of the concrete to decline, and serious agglomeration will cause the screw to break and the motor to be damaged. In practice, the conventional treatment method is to clean the residual cement in the pipe through the inspection hole when the machine is shut down, which tak...
Claims
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IPC IPC(8): B28C7/10
CPCB28C7/10
Inventor 傅之强
Owner 广元市联动机械有限责任公司