Medical waste incineration treatment process

Abstract

The invention belongs to the technical field of medical waste treatment, and provides a medical waste incineration treatment process which comprises the steps that S1, medical waste is classified, crushed and dried, so that the medical waste reaches proper incineration conditions; s2, the treated medical waste is fed into an incinerator to be incinerated, the incinerator adopts a pulse air distribution technology, the waste is sufficiently combusted at the high temperature by controlling the air volume and the air speed, and generation of dioxin is inhibited; s3, the generation of dioxin is inhibited through rapid cooling of the boiler; s4, in the incineration treatment process, the CO concentration and the oxygen content of the incinerator are monitored in real time through an online monitoring system, and stability and high efficiency of the incineration process are guaranteed; through the pulse air supply technology, it is ensured that smoke and oxygen are fully mixed, medical waste is fully combusted at the high temperature, the generation condition of dioxin is destroyed, the furnace temperature is adjusted through steam cooling, and generation of dioxin is restrained.

Description

Technical Field

[0001] The invention belongs to the technical field of medical waste treatment, in particular to a medical waste incineration treatment process. Background Art

[0002] Medical waste contains a large amount of pathogens, chemicals and harmful substances. If not handled properly, it will pose a serious threat to the environment and human health. Traditional medical waste treatment methods include incineration, landfill and chemical treatment. Among them, incineration is widely used due to its high treatment efficiency and significant volume reduction effect.

[0003] However, during the incineration process, the high temperature environment provides conditions for the formation of dioxins. When the incineration temperature is in the range of 200℃-600℃, the amount of dioxins generated increases significantly. In addition, the chloride content in medical waste is relatively high, such as copper chloride, ferric chloride, etc. These substances will promote the formation of dioxins under high temperatures, causing impacts on the environment and human health.

[0004] To this end, those skilled in the art have proposed a medical waste incineration process to solve the problems raised by the background technology. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a medical waste incineration treatment process to solve the problem that in the prior art, the high temperature environment of incineration provides conditions for the generation of dioxins during the incineration process. When the incineration temperature is in the range of 200°C-600°C, the amount of dioxins generated increases significantly, and the chloride content in the medical waste is relatively high, such as copper chloride, ferric chloride, etc. These substances will promote the generation of dioxins at high temperatures, causing impacts on the environment and human health.

[0006] A medical waste incineration treatment process, comprising:

[0007] S1: Classify, crush and dry medical waste to achieve suitable incineration conditions;

[0008] S2: The treated medical waste is sent to the incinerator for incineration. The incinerator adopts pulse air distribution technology to control the air volume and wind speed to make the waste fully burn at high temperature and inhibit the generation of dioxins;

[0009] S3: Suppress the production of dioxins by rapidly cooling the boiler;

[0010] S4: During the incineration process, the CO concentration and oxygen content of the incinerator are monitored in real time through the online monitoring system to ensure the stability and efficiency of the incineration process;

[0011] S5: The flue gas generated by incineration is recycled through the waste heat recovery device, and then enters the flue gas purification system to remove particulate matter, acidic gases and harmful substances in the flue gas;

[0012] S6: The ash after incineration is cooled, screened and stabilized to meet the standards for safe landfill or resource utilization.

[0013] Preferably, the incinerator adopts a dumbbell-shaped furnace structure to strengthen smoke reflow, a miniaturized design, and removes a furnace body rotating structure to optimize the furnace structure and reduce costs and floor space.

[0014] Preferably, the pulse air distribution technology is specifically: strengthening turbulence through pulse air distribution, increasing the contact between flue gas and combustibles, improving the utilization rate of combustion-supporting air, and reducing the excess air coefficient and flue gas oxygen content.

[0015] Preferably, the rapid cooling of the boiler specifically includes: adjusting the furnace temperature by cooling with steam to inhibit the generation of dioxins.

[0016] Preferably, the online monitoring system includes a CO concentration sensor and an oxygen content sensor.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention ensures the full mixing of flue gas and oxygen through pulse air supply technology, so that medical waste can be fully burned at high temperature, destroying the conditions for the formation of dioxins, and regulating the furnace temperature through steam cooling to inhibit the generation of dioxins.

[0019] 2. The present invention adopts a dumbbell-shaped furnace structure to strengthen smoke reflow, improve combustion efficiency, and reduce costs and floor space through miniaturized design and removal of unnecessary rotating structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a process flow chart of a medical waste incineration treatment process. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] Embodiment 1

[0023] As attached Figure 1 As shown, this embodiment provides a medical waste incineration treatment process, including:

[0024] S1: Classify, crush and dry medical waste to achieve suitable incineration conditions, remove non-incinerable items, and reduce the moisture content of medical waste;

[0025] S2: The treated medical waste is sent to the incinerator for incineration. The incinerator adopts pulse air distribution technology to control the air volume and wind speed to make the waste fully burn at a high temperature of 850℃ and inhibit the generation of dioxins;

[0026] S3: Suppress the production of dioxins by rapidly cooling the boiler;

[0027] S4: During the incineration process, the CO concentration and oxygen content of the incinerator are monitored in real time through the online monitoring system to ensure the stability and efficiency of the incineration process;

[0028] S5: The flue gas generated by incineration is recycled through the waste heat recovery device to improve energy utilization, and then enters the flue gas purification system to remove particulate matter, acidic gases and harmful substances in the flue gas to reduce secondary pollution. The flue gas purification system adopts a combined process of "semi-dry acid removal + activated carbon injection + bag filter + flue gas purifier" to increase the flue gas purifier and reduce the emission of particulate matter and dioxins;

[0029] S6: The ash after incineration is cooled, screened and stabilized to meet the standards for safe landfill or resource utilization, reducing potential risks to the environment.

[0030] Embodiment 2

[0031] As attached Figure 1 As shown, this embodiment is basically the same as the previous embodiment, except that the incinerator adopts a dumbbell-shaped furnace structure to strengthen flue gas reflow, a miniaturized design, and removes the furnace body rotating structure to optimize the furnace structure, changing the current situation of simply ensuring sufficient residence time by increasing the furnace body, thereby reducing costs and floor space.

[0032] Specifically, the pulse air distribution technology is to strengthen turbulence through pulse air distribution, increase the contact between flue gas and combustibles, improve the utilization rate of combustion air, reduce the excess air coefficient and flue gas oxygen content, and change the current situation where combustion needs to be carried out under a larger air coefficient.

[0033] Furthermore, the rapid cooling of the boiler is specifically: adjusting the furnace temperature through steam cooling to inhibit the generation of dioxins.

[0034] Furthermore, the online monitoring system includes a CO concentration sensor and an oxygen content sensor, which can determine the combustion efficiency of the incinerator by online monitoring of the CO concentration and oxygen content, and the monitoring data can be used to adjust the combustion parameters in real time through a PID control algorithm.

[0035] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0040] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical waste incineration treatment process, characterized in that: include, S1: Classify, crush and dry medical waste to achieve suitable incineration conditions; S2: The treated medical waste is sent to the incinerator for incineration. The incinerator adopts pulse air distribution technology to control the air volume and wind speed to make the waste fully burn at high temperature and inhibit the generation of dioxins; S3: Suppress the production of dioxins by rapidly cooling the boiler; S4: During the incineration process, the CO concentration and oxygen content of the incinerator are monitored in real time through the online monitoring system to ensure the stability and efficiency of the incineration process; S5: The flue gas generated by incineration is recycled through the waste heat recovery device, and then enters the flue gas purification system to remove particulate matter, acidic gases and harmful substances in the flue gas; S6: The ash after incineration is cooled, screened and stabilized to meet the standards for safe landfill or resource utilization.

2. A medical waste incineration process as claimed in claim 1, characterized in that: The incinerator adopts a dumbbell-shaped furnace structure to strengthen smoke reflow, a miniaturized design, and removes a furnace body rotating structure to optimize the furnace structure and reduce costs and floor space.

3. A medical waste incineration process as claimed in claim 2, characterized in that: The pulse air distribution technology is specifically: strengthening turbulence through pulse air distribution, increasing the contact between flue gas and combustibles, improving the utilization rate of combustion-supporting air, and reducing the excess air coefficient and flue gas oxygen content.

4. A medical waste incineration process as claimed in claim 3, characterized in that: The rapid cooling of the boiler specifically includes: adjusting the furnace temperature by steam cooling to inhibit the generation of dioxins.

5. A medical waste incineration process as claimed in claim 4, characterized in that: The online monitoring system includes a CO concentration sensor and an oxygen content sensor.

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