A mz type buried scraper sludge conveyor and its method

Abstract

The invention relates to an MZ-type buried scraper sludge conveyor and an MZ-type buried scraper sludge conveying method thereof. The MZ-type buried scraper sludge conveyor mainly consists of a tail part, a lower horizontal section, a lower bending section, a vertical section, an upper bending section, an upper horizontal section and a head part, wherein the lower horizontal section, the vertical section and cross section of a shell of the upper horizontal section are of a 'TU'-shaped (a Chinese character) structure, a scraper chain is arranged in the shell, a double row roller chain of the scraper chain is arranged on left and right shoulders of the shell, and a scraper of the scraper chain is arranged in a groove of the shell and keeps a distance with the groove. The MZ-type buried scraper sludge conveyor and the method thereof which are provided by the invention have the advantages that the double row roller chain, an external scraper and a convex shell are arranged, and sludge is avoided from being directly contacted with the roller chain, so that corrosion of the sludge on the roller chain is reduced, and difficult material reverting and discharging caused by the fact that the sludge is bonded on the scraper chain can be avoided.

Description

technical field [0001] The invention relates to the field of sludge transportation, in particular to an MZ type buried scraper sludge conveyor and a method thereof. Background technique [0002] The sewage treatment process is to transfer a large amount of pollutants in the sewage to the remaining sludge, so there are still a large amount of toxic and harmful substances in the sludge, and the sludge incineration technology is the most thorough sludge treatment method. At present, my country is still in the initial development stage in terms of sludge treatment. Generally, screw conveying, belt conveying and truck tanker conveying methods are used. There are several problems in this method: 1) The sludge treatment facilities are dense, which greatly increases the occurrence of equipment failures. 2) The semi-dry sludge will be put into the incinerator for incineration after being transported on the ground, and there is bound to be upward transport, while the screw conveyor or ...

AI Technical Summary

Problems solved by technology

At present, my country is still in the initial development stage in terms of sludge treatment. Generally, screw conveying, belt conveying and truck tanker conveying methods are used. There are several problems in this method: 1) The sludge treatment facilities are dense, which greatly increases the occurrence of equipment failures. 2) The semi-dry sludge will be put into the incinerator for incineration after being transported on the ground, and there is bound to be upward transport, while the screw conveyor or belt conveyor If the elevation angle is slightly larger, a large amount of sludge will fall back. In order to avoid this phenomenon, multi-stage transportation is generally used, which makes the entire device occupy a large area and increases the land occupation cost of urban sludge treatment; 3), semi-dry sludge It is a viscous substance with a water content between 30% and 40%. During the process of being dried and transported to the incinerator by the transport device, it is more viscous and usually corrosive because it has not been cooled. Sexuality, peculiar smell, easy to cause blockage for general conveying devices

[0004] However, due to the limitation of the nature of the sludge itself, there are several problems in the process of using the MZ buried scraper conveyor: 1) The sludge is viscous and has a large conveying volume, while the traditional MZ buried scraper conveyor The scraper chain of the conveyor is single-row and inwardly arranged (see the appendix Figure 8-9 ), it is very easy to cause sludge to stick to the scraper chain, resulting in difficulty in unloading and serious return phenomenon; 2), the sand content in the dehydrated sludge is >24%, and the single-row chain is installed in a built-in way. In direct contact with the material, in addition, due to the sliding friction between the chain and the guide rail of the MZ type buried scraper conveyor, not only the noise generated is relatively large, but also the wear is quite serious

3) The sludge is corrosive, so the service life of the scraper chain generally does not exceed three months, and because the box is closed, maintenance is difficult

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