boiler

Abstract

The invention discloses a boiler, which relates to the technical field of sewage treatment. The boiler comprises: a first gallbladder extending along an axis; a scraper arranged in the first gallbladder, the scraper extending along a cylindrical helix , the scraper can rotate around the axis, and the outside of the scraper can scrape off the scale or dirt on the inner wall of the first bladder; a transmission mechanism, the transmission mechanism is connected with the scraper to The blade can be rotated. The application can treat sewage, and can automatically remove scale and sundries produced by sewage in the cavity.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a boiler. Background technique [0002] At present, sewage treatment adopts a series of complete sets of sewage treatment equipment or sewage treatment system. The structure of sewage treatment equipment is complex, and the technical requirements are relatively high. However, the scale of sewage treatment system is large, and the construction and operation cost is relatively high, thus resulting in sewage treatment cost. higher problem. Furthermore, after the sewage treatment equipment or sewage treatment system completes the sewage treatment, a certain amount of discharge water still needs to be discharged, and the discharged water actually still has certain low-pollution substances. [0003] In the use of existing boilers, tap water or softened and filtered water can usually be used, but both of the above two methods have certain disadvantages: firstly, the cost of pu...

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Problems solved by technology

[0003] In the use of existing boilers, tap water or softened and filtered water can usually be used, but both of the above two methods have certain disadvantages: firstly, the cost of purchasing water in the two methods is relatively high; secondly, if tap water is used directly, Since tap water contains a large amount of calcium ions and magnesium ions, after the water is heated, the calcium ions and magnesium ions will react and deposit on the boiler wall to form scale, especially near the heat exchange place, where the water temperature is the highest. The scale here will be formed in a large amount in a short period of time, and because the scale is formed on the inner wall of the cavity, it cannot be directly and effectively removed. The scale that cannot be removed on the inner wall of the cavity will greatly reduce the heating efficiency of the boiler

The scale on the inner wall of the cavity can be removed by introducing chemical agents, but it will increase the operating cost, and the water after chemical agents will pollute the environment

If the boiler uses softened and filtered water, although it will not quickly form scale on the boiler wall, the softening and filtering of water will greatly increase the operating cost

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