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Cleaning device for cement lining of nodular cast iron pipe

A technology of ductile iron pipes and cement linings, which is applied in the direction of cleaning hollow objects, cleaning methods and tools, stone processing tools, etc., can solve the problems of reduced production, no suitable crushing device for cement, and inability to ensure the inner wall of the pipe to fit, etc., to achieve The effect of improving cleaning efficiency

Active Publication Date: 2020-03-24
HANSHAN COUNTY XINGDA DUCTILE IRON FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the ductile iron pipe is also destroyed due to cement defects, which wastes raw materials and greatly increases the cost.
[0003] Chinese patent (authorized announcement number: CN203438411U) discloses a device for removing the cement lining of ductile iron pipes. During the slow progress of the trolley, the cement lining with high strength is cleaned without damaging the ductile iron pipes and achieves reuse. The purpose of the ductile iron pipe is to greatly reduce the production, but it has certain defects. The cleaning process does not have a suitable crushing device for the cement in the pipe, and it cannot guarantee the fit with the inner wall of the pipe.

Method used

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  • Cleaning device for cement lining of nodular cast iron pipe
  • Cleaning device for cement lining of nodular cast iron pipe
  • Cleaning device for cement lining of nodular cast iron pipe

Examples

Experimental program
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Effect test

Embodiment 1

[0027] see figure 1 , a device for removing the cement lining of ductile iron pipes, including a cleaning frame 2 and an outer bracket 1, the outer bracket 1 is installed externally on the foundation as the fixed end of the cleaning frame 2, and the top of the outer bracket 1 is installed with a positioning Seat 11, a pay-off roller 12 is installed on the positioning seat 11, a positioning ring 21 is installed on the top of the cleaning frame 2, and a stay cord 13 is used to connect between the positioning ring 21 and the pay-off roller 12. This application adopts a suspended structure through the outer support 1, and lowers the cleaning frame 2, but the pushing method is not limited to the structure described in the application, and similarly, a trolley as described in the prior art can also be used for horizontally placed iron pipes. as a delivery medium.

[0028] see figure 1 with Figure 4 The two sides of the cleaning frame 2 are equipped with sliding brackets 20, the ...

Embodiment 2

[0033] see figure 1 with Figure 4 , this embodiment is a further optimization of the first embodiment, on the basis of which, the pulleys 26 are equidistantly installed on the roller frame 25 through the wheel shaft, and the pulleys 26 on the same side are connected by crawlers. Since the inner wall of the pipeline is often uneven, the application designs the roller as a crawler structure, which can smoothly walk along the inner wall of the pipeline and prevent the convex part of the inner wall from being stuck between adjacent rollers.

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Abstract

The invention relates to the technical field of cast tube cleaning equipment, in particular to a cleaning device for cement lining of nodular cast iron pipe. The cleaning device for cement lining of nodular cast iron pipe includes a cleaning rack and outer bracket. The outer bracket is arranged outside and installed on the foundation as a fixed end of the cleaning rack. The bottom end of the cleaning rack is provided with a transmission chassis. A wiper brush is installed on the side of the transmission chassis. The bottom end of the transmission chassis is provided with an auger bit. The transmission is installed on the cleaning rack through a central roller. The connecting ends of the cleaning rack and the transmission is provided with a transmission cavity. A circular groove is formed in the inner disk surface of the transmission chassis. Circular insection is formed in the circular groove. A drive motor is installed in the transmission cavity. A drive spindle is installed at a drive end of the drive motor. The drive spindle extracts into the circular groove and is provided with a drive gear. The drive gear meshes with the circular insection. The cleaning device for cement lining of nodular cast iron pipe guarantees that the cleaning rack can fits the iron pipe inner wall, scrapes the cement off, and solves the problem of cement blocking in the pipe.

Description

technical field [0001] The invention relates to the technical field of cast pipe cleaning equipment, in particular to a device for removing cement lining of ductile iron pipes. Background technique [0002] The pipes made by casting molten iron above No. 18 and adding nodularizing agent through high-speed centrifugal casting of centrifugal ductile iron machines are called "ductile iron pipes", referred to as ball pipes, ductile iron pipes and ductile iron pipes for short. The cement mortar lining of the ductile iron pipe mainly has two functions: on the one hand, it can improve the corrosion resistance of the ductile iron pipe, and on the other hand, it can protect the water quality. Therefore, the cement mortar lining of ductile iron pipes must not only meet the relevant technical standards in thickness and surface quality, but also must not have any harmful effects on water quality. At present, in domestic centrifugal cast iron pipe production plants, the inner wall of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/043B08B9/045B08B9/047B28D1/14B28D7/04
CPCB08B9/0436B08B9/045B08B9/047B28D1/14B28D7/04
Inventor 张福新
Owner HANSHAN COUNTY XINGDA DUCTILE IRON FACTORY