Medical waste incineration bottom slag drying device
By installing a drying device at the bottom of the incinerator, and utilizing steam heating and waste gas recirculation, the problem of residual moisture in the incineration bottom ash is solved, achieving drying and waste gas collection, protecting the environment and improving processing efficiency.
Patent Information
- Application Number
- CN202520916152.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-14
- Estimated Expiration
- 2035-05-09
AI Technical Summary
The residual moisture in the incineration bottom ash increases its weight, impacting the environment and treatment efficiency, and existing technologies have failed to effectively address this issue.
A bottom ash drying tank is installed at the bottom of the incinerator, and steam is introduced through a steam inlet pipe for heating and drying. A centrifugal fan is used to return the waste gas to the incinerator for high-temperature incineration. Wastewater is discharged through a drain pipe, and a quick-opening ash discharge gate is used for dry ash discharge.
It enables the drying of incineration bottom ash, reducing environmental pollution and improving processing efficiency and safety.
Smart Images
Figure CN224121543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical waste treatment technology, specifically to a medical waste incineration bottom ash drying device. Background Technology
[0002] Medical waste refers to contaminated waste produced by hospitals that has come into contact with patients' blood and bodies. Examples include used cotton balls, gauze, adhesive tape, wastewater, disposable medical instruments, surgical waste, and expired medicines. Medical waste is characterized by spatial pollution, acute infectiousness, and latent pollution. Unlike household waste, medical waste contains a large number of bacteria, viruses, and chemical agents, and has extremely high infectivity, biotoxicity, and corrosiveness. If untreated or incompletely treated medical waste is piled up at will, it can easily cause pollution to water bodies, soil, and air, causing direct or indirect harm to human health and may also become a source of disease outbreaks.
[0003] The amount of medical waste generated is enormous, so it needs to be properly treated. Currently, most medical waste is treated by incineration. The exhaust gas generated by incineration is discharged through the flue and enters the exhaust gas treatment system. The bottom ash is discharged from the bottom of the incinerator by a wet ash removal process. Due to the wet ash removal process, some moisture remains in the bottom ash, which increases the weight of the bottom ash and has an impact on the environment. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a medical waste incineration bottom ash drying device.
[0005] The technical solution of this utility model is as follows:
[0006] A medical waste incineration bottom ash drying device includes a support frame and an incinerator mounted on the support frame. A bottom ash drying tank is located at the bottom of the incinerator. An intermittent ash discharge machine is installed between the incinerator and the bottom ash drying tank. A steam inlet pipe is connected to one side of the bottom ash drying tank. An exhaust gas inlet is provided on the incinerator, and a centrifugal fan is installed on the exhaust gas inlet. The other side of the bottom ash drying tank is connected to the centrifugal fan through an exhaust gas discharge pipe. A drain pipe is connected to the bottom of the bottom ash drying tank, and a quick-opening ash discharge gate is installed.
[0007] Furthermore, a guardrail is installed around the incinerator.
[0008] Furthermore, a dry ash funnel is also provided below the incineration bottom ash drying tank.
[0009] Furthermore, the medical waste incineration bottom ash drying device also includes a water receiving tray and a movable slide rail. The water receiving tray is slidably connected to the movable slide rail and is used to receive the wastewater discharged from the drain pipe.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a medical waste incineration bottom ash drying device, which involves adding an incineration bottom ash drying tank to the bottom of the incinerator, and installing an intermittent ash discharge machine between the incinerator and the drying tank. A steam inlet pipe is connected to one side of the drying tank, and an exhaust gas inlet is added to the incinerator, with a centrifugal fan installed on the exhaust gas inlet. The other side of the drying tank is connected to the centrifugal fan via an exhaust gas discharge pipe. A drain pipe is connected to the bottom of the drying tank, and a quick-opening ash discharge gate is installed. After incineration, the medical waste... The incineration bottom ash falls from the ash outlet of the ash discharge machine into the incineration bottom ash drying tank for further drying. Steam is introduced through the steam inlet pipe, and the incineration bottom ash is dried by steam heating. The wastewater generated during the drying process is discharged through the drain pipe, while the exhaust gas generated in the incinerator and the incineration bottom ash drying tank is returned to the incinerator for high-temperature incineration under the action of a centrifugal fan. The final dry medical waste residue is discharged through a quick-opening ash discharge gate. This medical waste incineration bottom ash drying device can realize the drying of moisture in medical waste incineration bottom ash and the collection and treatment of exhaust gas during the drying process, thereby protecting the environment and human health. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 A schematic diagram of the structure of a medical waste incineration bottom ash drying device provided by this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the incinerator and the incineration bottom ash drying tank described in this utility model. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0015] To illustrate the technical solution described in this utility model, specific embodiments are described below.
[0016] Example
[0017] Please see Figure 1 , Figure 2This embodiment provides a medical waste incineration bottom ash drying device, including a support 1 and an incinerator 2 mounted on the support 1. A bottom ash drying tank 3 is provided at the bottom of the incinerator 2. An intermittent ash discharge machine 21 is installed between the incinerator 2 and the bottom ash drying tank 3. A steam inlet pipe 31 is connected to one side of the bottom ash drying tank 3. An exhaust gas inlet is provided on the incinerator 2, and a centrifugal fan 4 is installed on the exhaust gas inlet. The other side of the bottom ash drying tank 3 is connected to the centrifugal fan 4 through an exhaust gas discharge pipe 32. A drain pipe 33 is connected to the bottom of the bottom ash drying tank 3 and a quick-opening ash discharge gate 34 is installed. A dry ash funnel 5 is provided below the bottom ash drying tank 3. It also includes a water receiving pan 6 and a movable slide rail 7. The water receiving pan 6 is slidably connected to the movable slide rail 7 and is used to receive the wastewater discharged from the drain pipe 33.
[0018] Preferably, the incinerator 2 is equipped with guardrails 8 around its perimeter, which serve as a safety protection measure when staff pour medical waste onto the support 1.
[0019] The specific workflow is as follows: Workers pour medical waste from support 1 into incinerator 2. The medical waste is first incinerated in incinerator 2. During this time, the intermittent ash discharger 21 and centrifugal fan 4 are both off. After incineration, the intermittent ash discharger 21 is opened, and the incinerated bottom ash falls from the intermittent ash discharger 21 into the incinerated bottom ash drying tank 3 for further drying. Simultaneously, the incineration exhaust gas generated in incinerator 2 also enters the incinerated bottom ash drying tank 3. During the drying process, the intermittent ash discharger 21, the quick-opening ash discharge gate 34, and the centrifugal fan 4... All blowers 4 are in the off state. Steam is input through steam inlet pipe 31 and the incineration bottom ash in the incineration bottom ash drying tank 3 is dried by steam heating. The wastewater generated during the drying process is discharged from drain pipe 33 to water receiving pan 6. The exhaust gas in the incineration bottom ash drying tank 3 is returned to the incinerator 2 for high-temperature incineration under the action of centrifugal blower 4. After drying is completed, the quick-opening ash discharge gate 34 is opened and the dry medical waste ash is discharged downward through the dry ash funnel from the quick-opening ash discharge gate 34. At this time, the wastewater can be treated by moving the water receiving pan 6.
[0020] This medical waste incineration bottom ash drying device can achieve moisture drying of medical waste incineration bottom ash and collection and treatment of exhaust gas during the drying process, thereby protecting the environment and human health. The above is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A medical waste incineration bottom ash drying device, comprising a support frame and an incinerator mounted on the support frame, characterized in that: The bottom of the incinerator is equipped with a bottom ash drying tank. An intermittent ash discharge machine is installed between the incinerator and the bottom ash drying tank. A steam inlet pipe is connected to one side of the bottom ash drying tank. The incinerator is equipped with an exhaust gas inlet, and a centrifugal fan is installed on the exhaust gas inlet. The other side of the bottom ash drying tank is connected to the centrifugal fan through an exhaust gas discharge pipe. A drain pipe is connected to the bottom of the bottom ash drying tank and a quick-opening ash discharge gate is installed.
2. The medical waste incineration bottom ash drying device according to claim 1, characterized in that: The incinerator is surrounded by guardrails.
3. The medical waste incineration bottom ash drying device according to claim 1, characterized in that: A dry ash funnel is also installed below the incineration bottom ash drying tank.
4. The medical waste incineration bottom ash drying device according to claim 1, characterized in that: The medical waste incineration bottom ash drying device also includes a water receiving tray and a movable slide rail. The water receiving tray is slidably connected to the movable slide rail and is used to receive the wastewater discharged from the drain pipe.