Medical waste incinerator waste heat control utilization device

Abstract

The utility model discloses medical waste combustion furnace waste heat control utilization device, including filter, the inlet end of filter is connected with the air inlet channel, and two air inlets are connected with the air inlet pipe at corresponding position department, the air inlet channel is vertically air current delivery direction swing splicing to have the adjusting plate in, and the middle part of adjusting plate is provided with the air inlet channel of horizontal through -punching, and the inside horizontal fixed baffle of being located between two air inlets is fixed to one side inside in the air inlet channel, and the baffle is vertically supported at the one side of adjusting plate, the utility model discloses install the air inlet channel at the filter entrance of medical waste combustion furnace front end, and the part of tail gas of air and combustion backflow utilization is input through two air inlet pipes, and the size of air inlet channel above and below baffle is changed through the lifting of adjusting plate, thereby changing the dosage of the part of tail gas of air and combustion backflow utilization, and the waste heat of tail gas is fully utilized, realizes according to actual environment temperature to change the air intake of high temperature tail gas and normal temperature air.

Description

Technical Field

[0001] This utility model relates to the field of medical waste incinerator technology, specifically a waste heat control and utilization device for medical waste incinerators. Background Technology

[0002] Medical waste incinerators are specialized equipment for incinerating medical waste. Their design and technical features are designed to ensure the safe and efficient treatment of medical waste. Through high-temperature combustion, medical waste incinerators ensure the complete inactivation of viruses and bacteria. Secondary oxygenation is used to make combustion more complete and reduce the emission of harmful gases. Equipped with a flue gas treatment system, multiple technologies are used to treat the flue gas to ensure that emissions meet standards.

[0003] Common medical waste incinerators mainly include rotary kiln incinerators, fixed grate incinerators, and gasification pyrolysis incinerators. Rotary kiln incinerators are suitable for treating medical waste with high moisture content and difficult processing, and are characterized by large processing capacity and small footprint; fixed grate incinerators have a simple structure and are suitable for small medical institutions or scenarios with small processing capacity; gasification pyrolysis incinerators use pyrolysis gasification technology to achieve the harmless, reduced-volume, and resource-based treatment of medical waste.

[0004] Medical waste incinerators differ from coal-fired incinerators primarily because the calorific value of medical waste combustion is approximately 6280 KJ / kg, while the calorific value of standard coal is 29271 KJ / kg, about five times that of medical waste. Therefore, it is difficult to directly heat medical waste to its ignition temperature, necessitating preheating to address its high moisture content and low calorific value. Current practices involve recycling a portion of the exhaust gas generated during medical waste incineration for preheating, avoiding the increased costs associated with additional fuel preheating.

[0005] In existing technologies, air and a portion of the exhaust gas from combustion recirculation are usually directly added to the combustion furnace without any adjustment of the air intake. However, due to the different temperatures throughout the year, the temperature of the incoming air varies. If the air intake is not kept constant, the combustion efficiency of medical waste will decrease when the temperature is low, which is not conducive to incineration. To address this, a waste heat control and utilization device for medical waste incinerators is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a waste heat control and utilization device for medical waste incinerators, which solves the problem that the combustion degree of medical waste decreases when the air temperature is low due to the lack of air intake regulation in existing medical waste incinerators.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A waste heat control and utilization device for medical waste incinerator includes a filter. The inlet end of the filter is connected to an air intake channel. The two ends of the air intake channel are respectively provided with an air inlet and an air outlet. There are two air inlets arranged side by side, one above the other. Each of the two air inlets is connected to an air intake pipe at a corresponding position. An adjustment plate is movably inserted into the air intake channel in the direction perpendicular to the airflow. The middle of the adjustment plate is provided with a transversely penetrating air intake groove. Inside the air intake channel, on one side corresponding to the air inlet, a baffle is horizontally fixed between the two air inlets. The baffle is vertically supported on one side of the adjustment plate.

[0009] The air intake channel is equipped with a drive assembly that is connected to the regulating plate.

[0010] Preferably, the air intake channel is horizontally arranged, and the drive assembly is located at the top of the air intake channel.

[0011] Preferably, the lower intake pipe is an exhaust gas return pipe, and the upper intake pipe is an air supply pipe.

[0012] Preferably, the baffle is located at the bisection line of the height of the air intake channel cavity, and the height of the air intake groove does not exceed half of the height of the air intake channel cavity.

[0013] Preferably, the top and bottom of the air intake channel are both fixedly connected to a sealing chamber that is movably sleeved outside the adjustment plate and has sealing filler inside.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention installs an air intake channel at the filter inlet at the front end of a medical waste incinerator. Air and a portion of the exhaust gas recycled during combustion are input through two air intake pipes. By adjusting the raising and lowering of an adjustment plate, the size of the air intake channels above and below the baffle is changed, thereby altering the amount of air and the portion of exhaust gas recycled during combustion. This fully utilizes the waste heat of the exhaust gas and allows for adjustments to the intake volume of high-temperature exhaust gas and ambient air based on the actual ambient temperature. This ensures that the combustion degree of medical waste remains at a normal level under different temperature conditions, solving the problem of decreased combustion degree of medical waste when the air temperature is low due to the lack of air intake volume adjustment in existing medical waste incinerators. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the air intake channel of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Filter; 2. Air intake channel; 201. Air inlet; 202. Air outlet; 203. Air intake pipe; 204. Baffle; 3. Adjustment plate; 301. Air intake channel; 4. Drive assembly; 5. Sealing chamber. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-2 As shown, this utility model provides a technical solution: a waste heat control and utilization device for medical waste incinerator, including a filter 1, an air inlet channel 2 connected to the inlet end of the filter 1, the air inlet channel 2 is horizontally arranged, and an air inlet 201 and an air outlet 202 are respectively arranged at both ends of the air inlet channel 2. There are two air inlets 201 arranged side by side, and an air inlet pipe 203 is connected to each of the two air inlets 201 at the corresponding position.

[0021] An adjustment plate 3 is movably inserted into the air intake channel 2 in the direction of vertical airflow. An air intake groove 301 is provided in the middle of the adjustment plate 3. A baffle 204 is horizontally fixed inside the air intake channel 2 on one side corresponding to the air intake port 201. The baffle 204 is vertically supported on one side of the adjustment plate 3.

[0022] The lower intake pipe 203 is the exhaust gas return pipe, and the upper intake pipe 203 is the air supply pipe. The baffle 204 is located at the bisection line of the height of the inner cavity of the intake channel 2, and the height of the intake slot 301 does not exceed half of the height of the inner cavity of the intake channel 2.

[0023] The intake channel 2 is equipped with a drive assembly 4 that is connected to the adjustment plate 3. The drive assembly 4 is a linear stepper motor. The drive assembly 4 is located at the top of the intake channel 2. The top and bottom of the intake channel 2 are fixedly connected with sealing chambers 5 that are movably sleeved outside the adjustment plate 3 and have sealing fillers inside.

[0024] By installing an air intake channel 2 at the inlet of the filter 1 at the front end of the medical waste incinerator, air and a portion of the exhaust gas recycled from combustion are input through two air intake pipes 203. The size of the air intake channels 301 above and below the baffle 204 is changed by adjusting the height of the regulating plate 3, thereby changing the amount of air and a portion of the exhaust gas recycled from combustion. This fully utilizes the waste heat of the exhaust gas and allows the intake volume of high-temperature exhaust gas and normal-temperature air to be changed according to the actual ambient temperature, ensuring that the degree of medical waste combustion remains at a normal level under different temperature conditions.

[0025] When incinerating medical waste in a combustion furnace, the intake volumes of high-temperature exhaust gas and ambient air do not require precise control. This is because after the furnace starts, the internal temperature is primarily determined by the combustion of the medical waste. While the types, proportions, and quantities of medical waste are not entirely precise, the materials are limited, and their ignition temperatures tend to be stable. The intake air temperature is mainly affected by the ambient temperature. Given the significant temperature differences between northern and southern my country, and especially the seasonal variations, summer highs reach approximately 40°C, while winter lows drop to around -40°C. Even without considering extreme conditions, the temperature fluctuates considerably throughout the year. Therefore, adjusting the intake volumes of high-temperature exhaust gas and ambient air is necessary. The temperature of the high-temperature exhaust gas is relatively constant, while the ambient air temperature varies with the seasons. Thus, in high-temperature environments, less high-temperature exhaust gas preheating is needed, allowing for a reduction in intake volume. Conversely, in low-temperature environments, increasing the intake volume of high-temperature exhaust gas can improve preheating efficiency.

[0026] The combustion rate of medical waste decreases at lower air temperatures. Therefore, in low-temperature environments, increasing the intake of high-temperature exhaust gas improves the preheating effect, while reducing the intake air volume can be achieved by simply moving the adjusting plate 3 downwards via the drive component 4. This increases the area of ​​the intake slot 301 on the adjusting plate 3 corresponding to the exhaust gas return pipe below, thereby increasing the intake of high-temperature exhaust gas and improving the preheating effect. By changing the vertical position of the intake slot 301 on the adjusting plate 3, the intake volume of high-temperature exhaust gas and ambient air can be adjusted, preventing a decrease in the combustion rate of medical waste at lower air temperatures and ensuring that the combustion rate of medical waste remains at a normal level under different temperature environments.

[0027] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste heat control and utilization device for medical waste incinerators, comprising a filter (1), characterized in that: The filter (1) is connected to an air intake channel (2) at its inlet end. The air intake channel (2) is provided with an air inlet (201) and an air outlet (202) at its two ends respectively. There are two air inlets (201) arranged side by side. An air intake pipe (203) is connected to each of the two air inlets (201) at the corresponding position. An adjustment plate (3) is movably inserted into the air intake channel (2) in the direction of vertical airflow. An air intake groove (301) is provided in the middle of the adjustment plate (3). A baffle (204) is fixed horizontally inside the air intake channel (2) on one side corresponding to the air inlet (201) and is located between the two air inlets (201). The baffle (204) is vertically supported on one side of the adjustment plate (3). The air intake channel (2) is equipped with a drive assembly (4) that is connected to the regulating plate (3).

2. The waste heat control and utilization device for medical waste incinerator according to claim 1, characterized in that: The air intake channel (2) is horizontally arranged, and the drive assembly (4) is located at the top of the air intake channel (2).

3. The waste heat control and utilization device for medical waste incinerator according to claim 1, characterized in that: The lower intake pipe (203) is a tail gas return pipe, and the upper intake pipe (203) is an air supply pipe.

4. The waste heat control and utilization device for medical waste incinerator according to claim 1, characterized in that: The baffle (204) is located at the bisection line of the height of the inner cavity of the air intake channel (2), and the height of the air intake groove (301) does not exceed half of the height of the inner cavity of the air intake channel (2).

5. The waste heat control and utilization device for medical waste incinerator according to claim 1, characterized in that: The top and bottom of the air intake channel (2) are both fixedly connected to a sealing chamber (5) that is movably sleeved outside the adjusting plate (3) and has sealing filler inside.

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