Multi-thermal core temperature control coupled laboratory waste liquid disposal equipment

Abstract

The utility model provides a kind of multi-thermal nuclear temperature control coupling laboratory waste liquid disposal equipment, belong to laboratory waste liquid disposal technical field. Including waste liquid treatment equipment main body, the bottom of waste liquid treatment equipment main body is equipped with base, heat insulation door is installed on waste liquid treatment equipment main body, the top of waste liquid treatment equipment main body is equipped with waste liquid inlet, waste liquid treatment equipment main body is close to the side of waste liquid inlet and is equipped with denitration agent spout. By setting electric heating mechanism, can heat and make the moisture or low-boiling organic matter in waste liquid evaporate, at the same time, harmful substances such as hydrocarbons, pesticides, phenols in organic waste liquid are decomposed into inorganic substances such as CO2 and H2O by high temperature, which can provide sufficient heat for waste liquid, so that it is completely evaporated. Compared with the treatment method using fossil fuels, gas or liquid fuel as combustion-supporting energy, electric heating technology does not need to store fuel, has the characteristics of ready-to-use, high temperature control precision, safety and practicality.

Description

TECHNICAL FIELD

[0001] The utility model relates to laboratory waste liquid disposal technical field especially relates to a multi thermal nuclear temperature control coupling laboratory waste liquid disposal equipment. BACKGROUND

[0002] Laboratory waste liquid, especially organic waste liquid, is produced in the experimental research of scientific research units, scientific research and teaching of colleges and universities and daily medical process of hospitals, the composition of these waste liquids is complex and changeable, the impurity content such as heavy metal and particulate matter is high, and the waste liquid output is small, and organic waste liquid disposal mainly adopts the incineration treatment method of maximum reduction.

[0003] At present, laboratory organic waste liquid treatment depends on fossil, gas or liquid fuel as combustion-supporting energy, however, there are some problems between the characteristics of laboratory organic waste liquid and traditional treatment methods, first of all, the calorific value of laboratory organic waste liquid is low, when traditional high energy density fossil, gas or liquid fuel is used to assist treatment, energy waste is prone to occur, at the same time, the waste liquid production is small and intermittent, and the equipment is frequently started and stopped, so a large amount of fuel is consumed to preheat the equipment in the starting stage, and the energy consumption cost increases significantly, secondly, during the storage process of traditional fuels such as natural gas and diesel, there are risks such as flammability, explosion, leakage and poisoning, especially in the limited space of the laboratory, the safety hidden danger is further intensified, thirdly, during the combustion process, if the composition of the waste liquid is complex, the combustion is insufficient, and toxic gases such as carbon monoxide may also be produced, which threatens the safety of the operator, and because the composition of the waste liquid is complex and changeable and contains hydrocarbons, pesticides, phenols and other organic matters, the temperature cannot be accurately adjusted by the traditional combustion method, insufficient temperature will lead to incomplete decomposition of harmful substances, and too high temperature may produce additional pollutants such as nitrogen oxides, increasing the difficulty of subsequent tail gas treatment, secondly, traditional fuel combustion will produce a large amount of carbon dioxide, which will aggravate carbon emissions, at the same time, nitrogen oxides, sulfides and unburned organic matters produced by waste liquid combustion further complicate the composition of tail gas, and complex tail gas purification equipment is needed, which not only increases the equipment cost, but also makes the treatment process complicated and inefficient, therefore, the present application provides a multi thermal nuclear temperature control coupling laboratory waste liquid disposal equipment to meet the needs. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problem to provide a multi thermal nuclear temperature control coupling laboratory waste liquid disposal equipment, can evaporate the water or low boiling point organic matter in waste liquid by setting up the electric heating mechanism, at the same time, harmful substances such as hydrocarbons, pesticides and phenols in organic waste liquid are decomposed into inorganic substances such as CO2 and H2O by high temperature, sufficient heat can be provided for waste liquid to make it evaporate completely, and the above setting can solve the problem that fossil, gas or liquid fuel is not good as combustion-supporting energy.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A multi-thermal nuclear temperature control coupling laboratory waste liquid disposal equipment, comprising a waste liquid treatment device body, a base is installed at the bottom of the waste liquid treatment device body, a heat insulation door is installed on the waste liquid treatment device body, a waste liquid inlet is arranged at the top of the waste liquid treatment device body, a denitration agent nozzle is arranged on one side of the waste liquid treatment device body close to the waste liquid inlet, a tail gas outlet is arranged at the bottom of the waste liquid treatment device body, and an ash falling port is arranged at the bottom of the waste liquid treatment device body; an electric heating mechanism is used to heat the laboratory waste liquid by using electric energy, and the electric heating mechanism is connected with the waste liquid treatment device body; a mixing mechanism is used to mix the heat generated by the electric heating mechanism uniformly in the working space, and the mixing mechanism is connected with the electric heating mechanism.

[0007] An insulation layer is installed on the outer wall of the waste liquid treatment device body, the insulation layer is a multi-layer composite heat insulation structure, the innermost layer is a refractory fiber material, the middle layer is a nano heat insulation plate, the outer layer is a foamed polyurethane heat insulation material, and the outermost layer is sealed with a stainless steel plate.

[0008] Optionally, the electric heating mechanism comprises an outer hearth installed in the waste liquid treatment device body, an inner hearth is installed in the waste liquid treatment device body, a mixing section is arranged at the top of the waste liquid treatment device body, a combustion section is arranged at the bottom of the mixing section, a burnout section is arranged at the bottom of the combustion section, a first heater is arranged in the outer hearth, a second heater is arranged in the inner hearth, a middle hearth is formed between the outer hearth and the inner hearth, and a thermocouple is installed on one side of the waste liquid treatment device body.

[0009] Optionally, the mixing mechanism comprises a mounting framework installed at the top and bottom of the inner hearth, blades are installed equidistantly on the outer wall of the inner hearth, a connecting framework is fixedly connected to the bottom of the inner hearth, a gear ring is fixedly connected to the bottom of the connecting framework, and a driving assembly is installed on one side of the combustion section.

[0010] Optionally, the connecting framework is an arc-shaped structure protruding away from the center of the waste liquid treatment device body, and a slot is formed in the bottom of the connecting framework.

[0011] Optionally, a scraping mechanism is installed in the ash falling port, the scraping mechanism comprises a first frame body installed at the bottom of the gear ring, third frame bodies are fixedly connected to the top and bottom of the first frame body, and a second frame body is fixedly connected to the top of the first frame body.

[0012] Optionally, a fourth frame body is fixedly connected to the bottom of the first frame body, a limiting rod is installed at the bottom of the ash falling port, and a first insertion slot matched with the shape of the limiting rod is formed in the fourth frame body.

[0013] Optionally, the fourth frame is made of plastic material, and a weakening portion is arranged on the side of the fourth frame away from the dust falling port.

[0014] Optionally, a second insertion slot is arranged on the bottom of the dust falling port, and a third insertion slot is arranged on the bottom of the dust falling port.

[0015] Optionally, the fourth frame is square in cross section, and the limiting rod is L-shaped in cross section.

[0016] Optionally, a first limiting slot is arranged on the bottom of the dust falling port, and a second limiting slot is arranged on the bottom of the dust falling port.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] In the above scheme, by setting the electric heating mechanism, the water or low-boiling-point organic matter in the waste liquid can be evaporated by heating, and harmful substances such as hydrocarbons, pesticides and phenols in the organic waste liquid can be decomposed into inorganic substances such as CO2 and H2O by high temperature, so that sufficient heat can be provided for the waste liquid to completely evaporate. Compared with the treatment mode using fossil fuel, gas or liquid fuel as combustion-supporting energy, the electric heating technology does not need to store fuel, has the characteristics of ready-to-use and high temperature control precision, and has better safety and practicability.

[0019] By arranging the outer furnace and the inner furnace in the electric heating mechanism, the outer furnace assists in heating the middle furnace from the outside, and the high temperature generated by the first heater needs to be borne by the outer furnace. In order to reduce heat loss, the outer furnace is made of non-metallic material with high temperature resistance and poor heat conductivity. The inner furnace serves as a main heating device and supplies heat to the middle furnace from the inside, which can not only ensure uniform temperature in the furnace, but also use all the heat dissipation energy for heating the middle furnace, thereby significantly improving energy utilization efficiency and reducing energy consumption. The inner furnace must have the characteristics of high temperature resistance, good heat conductivity and resistance to tail gas corrosion, and is made of metal material or composite material with high temperature resistance and corrosion resistance. The cooperation between the structures can make the temperature of the middle furnace meet the requirements and completely decompose the difficult-to-decompose components in the waste liquid.

[0020] By arranging the mixing section, the combustion section, the burnout section and the heat preservation layer in the electric heating mechanism, the working space composed of the mixing section, the combustion section and the burnout section has a structure of'small at both ends and large in the middle', which prolongs the reaction process and time of the waste liquid and ensures complete decomposition of harmful components.

[0021] By arranging the blade in the mixing mechanism, the rotation of the blade promotes the rapid flow of air in the combustion section, realizes uniform heat distribution, and effectively avoids the problem that incomplete treatment is caused by uneven heating of the waste liquid. The blade adopts an upwardly convex arc structure, which not only can significantly improve the influence on the air flow rate in the combustion section, but also can effectively prevent the waste liquid from accumulating on the blade due to gravity, avoid hindering the flow of the waste liquid to the bottom of the waste liquid treatment equipment main body, and ensure that the laboratory waste liquid treatment work is stably and efficiently operated.

[0022] By setting the first frame body, the second frame body and the fourth frame body in the scraping mechanism, the connecting skeleton and the fourth frame body will be deformed when the first frame body and the connecting skeleton are installed and connected, so that the first frame body is tightly attached to the inner wall of the dust falling port under the restoring force of the fourth frame body and the connecting skeleton, and the dirt on the inner wall of the dust falling port is removed by the scraping force generated by the rotation of the first frame body; and by driving the assembly by using the power source of the device itself, additional power supply is not required, and energy consumption and waste liquid treatment cost are significantly reduced; through the automatic cleaning of the dust falling port inner wall by the cooperation of various components, the problems of narrow channel and blocked ash discharge caused by dust adhesion are effectively avoided, and the efficient and stable operation of the waste liquid treatment process is ensured.

[0023] In summary, the device takes electric heating as the core energy source, and realizes waste liquid treatment and equipment maintenance through the cooperative work of multiple components. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present application and, together with the specification, further serve to explain the principles of the present application and to enable a person skilled in the relevant art to practice and use the present application.

[0025] Figure 1 First perspective sectional structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0026] Figure 2 Second perspective sectional structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0027] Figure 3 Stereoscopic structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0028] Figure 4 Third perspective sectional structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0029] Figure 5 Fourth perspective sectional structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0030] Figure 6 First perspective sectional stereoscopic structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0031] Figure 7 Second perspective sectional stereoscopic structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0032] Figure 8 is Figure 7 Enlarged structure schematic diagram of position A in the middle;

[0033] Figure 9 A three-dimensional enlarged structural schematic diagram of the inner furnace chamber and the mounting frame assembly;

[0034] Figure 10 A magnified three-dimensional structural diagram of the assembly connecting the skeleton and the toothed ring;

[0035] Figure 11 A magnified schematic diagram of the three-dimensional unfolded structure of the connecting skeleton and the toothed ring assembly;

[0036] Figure 12 for Figure 11 Enlarged structural diagram at point B;

[0037] Figure 13 A magnified structural diagram of the assembly connecting the skeleton and the toothed ring;

[0038] Figure 14 for Figure 13 Enlarged structural diagram at point C;

[0039] Figure 15 A magnified three-dimensional structural diagram of the fourth frame and the limiting rod assembly;

[0040] Figure 16 for Figure 15 Enlarged structural diagram at point D.

[0041] Figure label:

[0042] 1. Waste liquid treatment equipment main body; 2. Base; 3. Insulation door; 4. Waste liquid inlet; 5. Denitrification agent nozzle; 6. Tail gas outlet; 7. Ash discharge port; 8. Mixing section; 9. Combustion section; 10. Burnout section; 11. Outer furnace chamber; 12. Inner furnace chamber; 13. Insulation layer; 14. Thermocouple; 15. Drive assembly; 16. Blades; 17. Mounting frame; 18. Connecting frame; 19. Gear ring; 20. First frame; 21. Second frame; 22. Slot; 23. Third frame; 24. Fourth frame; 25. First slot; 26. Weakening section; 27. Limiting rod; 28. First limiting slot; 29. ​​Second slot; 30. Second limiting slot; 31. Third slot; 32. Rotating block.

[0043] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0044] The following is a detailed description of a multi-thermal core temperature-coupled laboratory waste liquid treatment device provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0045] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when describing a specific feature, structure, or characteristic in conjunction with embodiments, the implementation of such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described, should be within the knowledge of those skilled in the art.

[0046] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0047] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0048] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0049] Example 1: As Figures 1 to 4As shown, an embodiment of this utility model provides a multi-thermal core temperature-controlled coupled laboratory waste liquid disposal equipment, including a waste liquid treatment equipment body 1, a base 2 installed at the bottom of the waste liquid treatment equipment body 1, an insulation door 3 installed on the waste liquid treatment equipment body 1, a waste liquid inlet 4 at the top of the waste liquid treatment equipment body 1, a denitrification agent nozzle 5 on the side of the waste liquid treatment equipment body 1 near the waste liquid inlet 4, a tail gas outlet 6 at the bottom of the waste liquid treatment equipment body 1, and an ash collection port 7 at the bottom of the waste liquid treatment equipment body 1; an electric heating mechanism, The electric heating mechanism is used to treat laboratory waste liquid by using electrical energy to generate heat. The electric heating mechanism is connected to the main body 1 of the waste liquid treatment equipment. The mixing mechanism is used to mix the heat generated by the electric heating mechanism evenly in the working space. The mixing mechanism is connected to the electric heating mechanism. The outer wall of the main body 1 of the waste liquid treatment equipment is equipped with a heat insulation layer 13. The heat insulation layer 13 has a multi-layer composite heat insulation structure. The innermost layer is refractory fiber material, the middle layer is nano heat insulation board, the outermost layer is foamed polyurethane heat insulation material, and the outermost layer is sealed with stainless steel plate to minimize heat dissipation of the furnace body.

[0050] In the above scheme, by setting up an electric heating mechanism, the water or low-boiling-point organic matter in the waste liquid can be evaporated. At the same time, the high temperature decomposes harmful substances in the organic waste liquid, such as hydrocarbons, pesticides, and phenols, into inorganic substances such as CO2 and H2O. This provides sufficient heat to the waste liquid, allowing it to evaporate completely. Compared with treatment methods that use fossil fuels, gaseous or liquid fuels as combustion energy, electric heating technology does not require fuel storage and has the characteristics of being ready to use immediately and having high temperature control accuracy. It is safer and more practical.

[0051] Specifically, the electric heating mechanism is used to treat laboratory waste liquid using electrical energy. The electric heating mechanism is connected to the main body 1 of the waste liquid treatment equipment. Compressed air is connected and a nozzle is installed at the waste liquid inlet 4, allowing the waste liquid to be atomized and sprayed into the main body 1 of the waste liquid treatment equipment. Simultaneously, atomized denitrification agent is introduced at the denitrification agent nozzle 5, promoting full contact and reaction between the waste liquid and the denitrification agent. The reaction between the polymer composite denitrification agent and the atomized waste liquid can effectively inhibit the generation of nitrogen oxides at high temperatures, reducing the difficulty of subsequent tail gas denitrification treatment. The base 2 and nozzle both utilize existing mature technologies; their working principles and specific structures will not be elaborated here. The electric heating mechanism provides sufficient heat to the waste liquid, ensuring complete evaporation: firstly, heating evaporates water or low-boiling-point organic matter in the waste liquid; simultaneously, high temperature decomposes harmful substances in the organic waste liquid, such as hydrocarbons, pesticides, and phenols, into inorganic substances such as CO2 and H2O. Compared to processing methods that use fossil fuels, gaseous or liquid fuels as combustion energy, electric heating technology does not require fuel storage, has the characteristics of being ready to use immediately, and has high temperature control accuracy, making it safer and more practical.

[0052] like Figures 1 to 4As shown, the electrothermal mechanism includes an outer furnace 11 installed inside the main body 1 of the waste liquid treatment equipment. An inner furnace 12 is installed inside the main body 1. A mixing section 8 is located at the top of the main body 1, a combustion section 9 is located at the bottom of the mixing section 8, and a burnout section 10 is located at the bottom of the combustion section 9. An insulation layer 13 is installed on the outer wall of the main body 1. A first heater is installed inside the outer furnace 11, and a second heater is installed inside the inner furnace 12. A middle furnace is formed between the outer furnace 11 and the inner furnace 12. A thermocouple 14 is installed on one side of the main body 1. The first heater, the second heater, and the thermocouple 14 all utilize existing mature technologies, and their working principles and specific structures will not be elaborated here. The outer furnace 11 provides auxiliary heating to the middle furnace from the outside. The high temperature generated by the first heater must be borne by the outer furnace 11. To reduce heat loss, the outer furnace 11 is made of a non-metallic material with high temperature resistance and poor thermal conductivity. Its internal heater can be designed as a straight line with a constant cross-section, a straight line with a variable cross-section, or a narrow U-shape. The inner furnace 12 serves as the main heating device, supplying heat to the central furnace from the inside. This ensures uniform temperature within the furnace and utilizes all heat dissipation energy for heating the central furnace, significantly improving energy utilization efficiency and reducing energy consumption. The high temperature generated by the second heater needs to be rapidly conducted to the central furnace; therefore, the inner furnace 12 must possess characteristics of high temperature resistance, good thermal conductivity, and resistance to exhaust gas corrosion. It is constructed from high-temperature and corrosion-resistant metal materials or composite materials. Depending on site requirements, the inner furnace 12 can be segmented to ensure that the temperature of the central furnace meets the requirements, enabling the complete decomposition of difficult-to-decompose components in the waste liquid.

[0053] The working space, consisting of mixing section 8, combustion section 9, and burnout section 10, has a "small at both ends and large in the middle" structure, extending the waste liquid reaction process and time to ensure complete decomposition of harmful components. Each section is made of temperature- and corrosion-resistant stainless steel, offering advantages such as simple processing, long service life, and high strength. The insulation layer 13 employs a multi-layer composite insulation structure: the innermost layer is refractory fiber material, the middle layer is nano-insulation board, the outermost layer is foamed polyurethane insulation material, and the outermost layer is sealed with a stainless steel plate, minimizing furnace heat dissipation. The nozzles are dual-fluid nozzles; the waste liquid is pumped, and compressed air is sent to the nozzles via a compressor for mixing and atomization. The atomization power mainly comes from compressed air, making it more energy-efficient than atomization methods that simply increase liquid pressure.

[0054] In summary, this device forms a heating system where the inner furnace 12 is located at the central axis of the main body 1 of the waste liquid treatment equipment, and the outer furnace 11 is arranged on both sides of the inner furnace 12, thus providing main heating from the inner furnace 12 and auxiliary heating from the outer furnace 11. After entering the mixing section 8 through the waste liquid inlet 4, the waste liquid reacts with the denitrification agent introduced through the denitrification agent nozzle 5, inhibiting the generation of nitrogen oxides at high temperatures. It then enters the combustion section 9, where the temperature is monitored in real time and precisely controlled by thermocouples 14 to ensure complete evaporation of the waste liquid. Finally, it enters the burnout section 10, where exhaust gas is discharged from the exhaust gas outlet 6 and waste residue is discharged from the ash outlet 7. This structure uses electricity as an energy source to treat laboratory waste liquid, and the coordinated operation of all components effectively improves treatment efficiency.

[0055] Specifically, temperature threshold setting:

[0056] T1, 1100℃: Nozzle start-up temperature, minimum maintenance temperature during waste liquid treatment.

[0057] T2, 1120℃: The shut-off temperature of the first heater.

[0058] T3, 1150℃: The shut-off temperature of the second heater.

[0059] T4, 1000℃: System fault trigger temperature. If the temperature detected during dual heater operation is lower than this value, a fault is determined.

[0060] Workflow:

[0061] After the device is started, the first and second heaters begin to heat the central furnace. When thermocouple 14 detects that the temperature has reached T1 and stabilized for 5 minutes, the nozzles are activated, atomizing the waste liquid and spraying it into the mixing section 8 area. The waste liquid reacts with the atomized denitrification agent introduced at the denitrification agent nozzle 5 to inhibit the formation of nitrogen oxides. The system dynamically adjusts the heating strategy according to the different calorific values ​​of the waste liquid.

[0062] Low calorific value waste liquid: If the temperature does not exceed T2 15 minutes after the nozzle is started, the dual heaters will continue to run for 5 minutes;

[0063] Medium-calorific-value waste liquid: When the temperature reaches or exceeds T2 and is maintained for 15 minutes, turn off the first heater;

[0064] High-calorific-value waste liquid: If the temperature rises to T3 and stabilizes for 5 minutes after the first heater is turned off for 15 minutes, the second heater is turned off.

[0065] If the temperature drops below T1 during processing, both heaters will restart; if the temperature drops below T4 while both heaters are running simultaneously, the system will determine that the heaters are faulty and shut down.

[0066] Example 2: Figures 4 to 8As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0067] The mixing mechanism is used to mix the heat generated by the electric heating mechanism evenly in the working space. The mixing mechanism is connected to the electric heating mechanism. The mixing mechanism includes a mounting frame 17 installed on the inner furnace chamber 12. There are two mounting frames 17 installed on the top and bottom of the inner furnace chamber 12 respectively. The side of the mounting frame 17 away from the inner furnace chamber 12 is fixedly connected to the inner wall of the combustion section 9. The side of the mounting frame 17 close to the inner furnace chamber 12 is rotatably connected to the inner furnace chamber 12. Specifically, the inner wall of the mounting frame 17 is provided with a rotating groove. A rotating block adapted to the shape of the rotating groove is installed on the inner furnace chamber 12. Blades 16 are installed at equal intervals on the outer wall of the inner furnace chamber 12. A connecting frame 18 is fixedly connected to the bottom of the inner furnace chamber 12. There are two connecting frames 18 symmetrically installed at the bottom of the inner furnace chamber 12. A toothed ring 19 is fixedly connected to the bottom of the connecting frame 18. A drive assembly 15 is installed on one side of the combustion section 9. The drive assembly 15 consists of a drive motor and two bevel gears. In operation, one of the bevel gears meshes with the gear ring 19, which rotates under the drive of the drive motor. Since both the drive motor and the bevel gear utilize existing mature technologies, their working principles and specific structures will not be elaborated here. To ensure the normal operation of the drive motor, an exhaust vent is provided on the main body 1 of the waste liquid treatment equipment for heat dissipation.

[0068] Considering that the outer furnace chamber 11 is symmetrically arranged on both sides of the inner furnace chamber 12, rather than being a ring-shaped enclosure, uneven temperature may easily occur in the combustion section 9 when the inner furnace chamber 12 provides auxiliary heating. To address this, the device uses a drive assembly 15 to rotate the gear ring 19, which in turn drives the inner furnace chamber 12 to rotate via the connecting frame 18. The inner furnace chamber 12 then drives the blades 16 on it to rotate. This rotational motion promotes rapid airflow within the combustion section 9, achieving uniform heat distribution and effectively preventing incomplete treatment due to uneven heating of the waste liquid. Furthermore, this design is simple, convenient, and efficient.

[0069] Furthermore, the top of the ash discharge port 7 has an installation groove larger than the toothed ring 19. The toothed ring 19 is stably installed in the installation groove, and its height can be finely adjusted within a certain range. The connecting frame 18 is an arc-shaped structure that protrudes away from the center of the waste liquid treatment equipment body 1. The connecting frame 18 is easy to deform and bend under external force, while achieving efficient agitation of the air in the combustion section 9. The blades 16 are arranged equidistantly in a spiral pattern along the outer wall of the inner furnace 12. This design can fully promote the airflow in the combustion section 9, so that the heat is evenly distributed, thereby ensuring the quality of waste liquid treatment. In addition, the blades 16 adopt an upwardly convex arc-shaped structure. This design can not only significantly improve the influence on the airflow velocity in the combustion section 9, but also effectively prevent waste liquid from accumulating on the blades 16 due to gravity, avoiding obstruction of the flow of waste liquid to the bottom of the waste liquid treatment equipment body 1, and ensuring the stable and efficient operation of laboratory waste liquid treatment.

[0070] like Figures 7 to 16As shown, a scraping mechanism is installed inside the ash discharge port 7. The scraping mechanism includes a first frame 20 installed at the bottom of the toothed ring 19. A third frame 23 is fixedly connected to the top and bottom of the first frame 20. A second frame 21 is fixedly connected to the top of the first frame 20. The second frame 21 is hook-shaped. A slot 22 is opened at the bottom of the connecting frame 18. A fourth frame 24 is fixedly connected to the bottom of the first frame 20. A limit rod 27 is installed at the bottom of the ash discharge port 7. A first slot 25 that matches the shape of the limit rod 27 is opened on the fourth frame 24. A second slot 29 and a third slot 31 are opened at the bottom of the ash discharge port 7. A first limiting groove 28 and a second limiting groove 30 are opened at the bottom of the ash discharge port 7. The bottom of the ash discharge port 7 is rotatably connected to the rotating block 32. The first limiting groove 28, the second slot 29, the second limiting groove 30, and the third slot 31 are all set on the rotating block 32. During normal operation, the fourth frame 24 is placed into the second slot 29, and the limiting rod 27 is sequentially inserted into the first limiting groove 28 and the first slot 25 to securely fix the fourth frame 24. At this time, the second frame 21 at the top of the first frame 20 remains separate from the connecting frame 18. When it is necessary to clean the inner wall of the ash discharge port 7, the fourth frame 24 is installed into the third slot 31, and the fourth frame 24 immediately bends and deforms. Then, the limiting rod 27 is inserted into the second limiting groove 30 and extends into the first slot 25, so that the fourth frame 24 is firmly fixed in the third slot 31. At this time, the first frame 20 is driven by the structure to move closer to the toothed ring 19 and press the toothed ring 19. The toothed ring 19 then presses the connecting frame 18 upward, causing the connecting frame 18 to undergo slight bending deformation. Then, the first frame 20 is rotated, and the second frame 21 is manipulated to hook the bottom of the connecting frame 18 and insert into the slot 22, completing the connection between the first frame 20 and the connecting frame 18. Under the restoring elastic force of the fourth frame 24 and the connecting frame 18, the first frame 20 fits tightly against the inner wall of the ash discharge port 7. At this time, starting the drive assembly 15 can drive the first frame 20 to rotate, and use the scraping force generated by the rotation to remove the scale on the inner wall of the ash discharge port 7.

[0071] The cleaning structure cleverly utilizes the device's own power source to drive the component 15, eliminating the need for additional power supply and significantly reducing energy consumption and waste liquid treatment costs. Through the coordinated operation of various components, it achieves periodic automatic cleaning of the inner wall of the ash discharge port 7, effectively avoiding problems such as narrow channels and obstructed ash discharge caused by dust adhesion, and ensuring the efficient and stable operation of the waste liquid treatment process.

[0072] Furthermore, the first frame 20, the second frame 21, the third frame 23, and the fourth frame 24 are an integral structure. The integral structure has better stability and is easier to produce and use. The fourth frame 24 is made of plastic material, which has good deformation capacity and is relatively lightweight. The side of the fourth frame 24 away from the ash discharge port 7 is provided with a weakening part 26, so that the part of the fourth frame 24 near the weakening part 26 is more likely to deform under the action of external force. The cross-section of the fourth frame 24 is square, so that the fourth frame 24 will not rotate when installed in the second slot 29 and the third slot 31. The cross-section of the limiting rod 27 is L-shaped, which facilitates the operation of the limiting rod 27.

[0073] The working principle of the technical solution provided by this utility model is as follows:

[0074] When in use, its working principle is as follows:

[0075] After the device starts up, the first and second heaters begin to heat the central furnace. Once thermocouple 14 detects that the temperature has reached T1 and stabilized for 5 minutes, the nozzles activate, atomizing the waste liquid and spraying it into the mixing section 8. The waste liquid reacts with the atomized denitrification agent introduced at the denitrification agent nozzle 5, inhibiting the formation of nitrogen oxides. The system dynamically adjusts the heating strategy according to the different calorific values ​​of the waste liquid.

[0076] Low calorific value waste liquid: If the temperature does not exceed T2 15 minutes after the nozzle is started, the dual heaters will continue to run for 5 minutes;

[0077] Medium-calorific-value waste liquid: When the temperature reaches or exceeds T2 and is maintained for 15 minutes, turn off the first heater;

[0078] High-calorific-value waste liquid: If the temperature rises to T3 and stabilizes for 5 minutes after the first heater is turned off for 15 minutes, the second heater is turned off.

[0079] If the temperature drops below T1 during processing, both heaters will restart; if the temperature drops below T4 while both heaters are running simultaneously, the system will determine that the heaters are faulty and shut down.

[0080] The device drives the motor and bevel gear of the drive component 15 through the transmission component to rotate the gear ring 19, which in turn drives the connecting frame 18, the inner furnace chamber 12 and the spirally arranged blades 16 to rotate in sequence. The arc structure of the blades 16 accelerates the air flow, so that the heat is fully mixed and the waste liquid is evenly heated and completely decomposed.

[0081] During normal operation, the fourth frame 24 is fixed to the second slot 29, and the first frame 20 is separated from the connecting frame 18. When cleaning the inner wall of the ash discharge port 7, the fourth frame 24 is installed into the third slot 31 and bent. After being fixed by the limiting rod 27, the second limiting groove 30, and the first slot 25, the first frame 20 presses against the toothed ring 19 to deform the connecting frame 18, and the second frame 21 hooks onto the bottom of the connecting frame 18 to complete the connection. Under the rebound force of the fourth frame 24 and the connecting frame 18, the first frame 20 is pressed tightly against the inner wall of the ash discharge port 7. Activating the drive assembly 15 will drive the first frame 20 to rotate and scrape off the scale on the inner wall. This cleaning process reuses the device's own power source, requiring no additional energy consumption, effectively avoiding blockage of the ash discharge port 7 channel, and reducing operating costs.

[0082] The entire system achieves efficient treatment of laboratory waste liquid through the coordinated operation of precise temperature control, dynamic heating, forced convection, and automatic cleaning, while also being both safe and economical.

[0083] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0084] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-thermon temperature-controlled coupled laboratory waste liquid treatment device, characterized in that, The device includes a main body for waste liquid treatment, a base installed at the bottom of the main body, an insulated door installed on the main body, a waste liquid inlet at the top of the main body, a denitrification agent nozzle on the side of the main body near the waste liquid inlet, a tail gas outlet at the bottom of the main body, and an ash collection port at the bottom of the main body. An electric heating mechanism is used to treat laboratory waste liquid by using electrical energy to generate heat, and the electric heating mechanism is connected to the main body of the waste liquid treatment equipment; A mixing mechanism is provided to mix the heat generated by the electric heating mechanism evenly within the working space, and the mixing mechanism is connected to the electric heating mechanism. The outer wall of the main body of the waste liquid treatment equipment is equipped with a heat insulation layer. The heat insulation layer has a multi-layer composite heat insulation structure, with the innermost layer being refractory fiber material, the middle layer being nano heat insulation board, the outermost layer being foamed polyurethane heat insulation material, and the outermost layer being sealed with stainless steel plate.

2. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 1, characterized in that, The electric heating mechanism includes an outer furnace chamber installed inside the main body of the waste liquid treatment equipment, an inner furnace chamber installed inside the main body of the waste liquid treatment equipment, a mixing section at the top of the main body of the waste liquid treatment equipment, a combustion section at the bottom of the mixing section, a burnout section at the bottom of the combustion section, a first heater inside the outer furnace chamber, a second heater inside the inner furnace chamber, and a middle furnace chamber formed between the outer furnace chamber and the inner furnace chamber. A thermocouple is installed on one side of the main body of the waste liquid treatment equipment.

3. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 2, characterized in that, The mixing mechanism includes mounting frames installed at the top and bottom of the inner furnace, blades are equidistantly installed on the outer wall of the inner furnace, a connecting frame is fixedly connected to the bottom of the inner furnace, a toothed ring is fixedly connected to the bottom of the connecting frame, and a drive assembly is installed on one side of the combustion section.

4. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 3, characterized in that, The connecting frame is an arc-shaped structure that protrudes away from the center of the main body of the waste liquid treatment equipment, and a groove is provided at the bottom of the connecting frame.

5. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 3, characterized in that, A scraping mechanism is installed inside the ash discharge port. The scraping mechanism includes a first frame installed at the bottom of the toothed ring. A third frame is fixedly connected to the top and bottom of the first frame, and a second frame is fixedly connected to the top of the first frame.

6. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 5, characterized in that, A fourth frame is fixedly connected to the bottom of the first frame, a limit rod is installed at the bottom of the ash discharge port, and a first slot adapted to the shape of the limit rod is provided on the fourth frame.

7. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 6, characterized in that, The fourth frame is made of plastic, and a weakened part is provided on the side of the fourth frame away from the ash discharge port.

8. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 1, characterized in that, The bottom of the ash discharge port is provided with a second slot and a third slot.

9. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 6, characterized in that, The fourth frame has a square cross-section, and the limiting rod has an L-shaped cross-section.

10. The multi-thermon temperature-controlled coupled laboratory waste liquid treatment equipment according to claim 1, characterized in that, The bottom of the ash discharge port is provided with a first limiting groove and a second limiting groove.

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