Medical waste incineration technological method

Abstract

The invention discloses a medical waste incineration technological method. According to the medical waste incineration technological method, medical waste passes through a feeding device, a rotary kiln, a second combustion chamber, a heat exchanger, a cooling device, a deacidification and adsorption tower, a bag dedusting device, an induced draft fan and a scrubbing tower. The heat exchanger is a double-tower heat exchanger. The cooling device works in a double-tower cooling and quenching mode and comprises a primary cooling tower and a secondary quenching tower. The deacidification and adsorption tower works in a double-tower deacidification and adsorption mode, and deacidification and adsorption are conducted through independent towers. The bag dedusting device is provided with two layers of bag bin walls. The bag dedusting device is connected with the scouring tower through the induced draft fan. Alkali liquor is contained in the scouring tower for conducting wet deacidification on the tail gas again before emission. By the adoption of the medical waste incineration technological method, the temperature of smoke at an outlet can be controlled; the effect that tail gas purification in the specification reaches a standard section is guaranteed; dioxin is effective restrained; the effect that the smoke entering a bag bin is constant-temperature dry smoke can be guaranteed; the load of the bag dedusting device is relieved; the service life of equipment is prolonged; purity-impurity cross contamination is eradicated; the waste treatment capacity is improved; the effect that tail gas emission reaches the standard is guaranteed; the treatment efficiency is improved; and the environment is protected.

Description

technical field [0001] The invention relates to the field of medical waste treatment, in particular to a medical waste incineration process. Background technique [0002] With the increase of the current population and the improvement of people's living standard and medical level, the amount of medical waste disposal is also increasing year by year. The current medical waste incineration line can no longer satisfy the effective, fast and safe disposal of medical waste. In the treatment of existing medical waste, most of them use double-tower deacidification, adsorption, and bag dust removal. In this traditional process, the unloading turnover barrel is cleaned and polluted in the same area, which is likely to cause cross-contamination; the rotary kiln incineration is unstable. , medical waste cannot be incinerated in time; the combustion chamber is seriously ash-filled, and it cannot be cleaned, which cannot meet continuous production. [0003] The Chinese invention patent...

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Problems solved by technology

[0003] The Chinese invention patent with the publication number CN1884912A discloses a medical waste incineration process and its system equipment. In the announced process, a rotary kiln, a secondary combustion chamber, and an exhaust gas purification system are used; A medical waste incineration process method, wherein the second combustion chamber used is a vertical second combustion chamber. Although the second combustion chamber incineration and quenching settings are used in the above technical solutions, there is only one quenching tower, and the subsequent semi-dry method Deacidification tower, deacidification and adsorption are not separated, the system process is short, high-temperature flue gas (800 ° C ~ 1000 ° C) is instantly cooled by water and mist spraying, the temperature difference is too large, resulting in flue gas fluctuating high and low, easy to If the bag is burned, the flue gas contains a lot of moisture at low temperature, causing the bag to condense, and the bag bin is easy to corrode

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