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

Abstract

The application provides a multi-thermal nuclear temperature control coupled laboratory waste liquid treatment equipment, and belongs to the technical field of laboratory waste liquid treatment. The laboratory waste liquid treatment equipment comprises a waste liquid treatment equipment main body, a base is installed at the bottom of the waste liquid treatment equipment main body, a heat insulation door is installed on the waste liquid treatment equipment main body, a waste liquid inlet is arranged at the top of the waste liquid treatment equipment main body, and a denitration agent nozzle is arranged on one side of the waste liquid treatment equipment main body close to the waste liquid inlet. The electric heating mechanism can heat and evaporate water or low-boiling-point organic matter in the waste liquid. At the same time, harmful substances such as hydrocarbons, pesticides and phenols in the organic waste liquid can be decomposed into inorganic substances such as CO2 and H2O through high temperature. The waste liquid can be provided with sufficient heat to completely evaporate. Compared with the treatment mode of using fossil fuels, gas or liquid fuels 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.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laboratory waste liquid disposal, in particular to a multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment. BACKGROUND

[0002] Laboratory waste liquid, especially organic waste liquid, is generated in the experimental research of scientific research units, scientific research and teaching of colleges and universities, and daily medical processes of hospitals. The composition of these waste liquids is complex and variable, the content of impurities such as heavy metals and particulate matter is high, and the waste liquid production is small. Organic waste liquid disposal mainly adopts the method of maximum reduction of incineration treatment.

[0003] At present, laboratory organic waste liquid treatment mainly relies on fossil, gas or liquid fuel as combustion-supporting energy. However, there are some problems between the characteristics of laboratory organic waste liquid and the traditional treatment method. First, the calorific value of laboratory organic waste liquid is generally low. When using traditional high-energy-density fossil, gas or liquid fuel to assist in treatment, energy waste is easy to occur. At the same time, the waste liquid production is small and intermittent, and the equipment is frequently started and stopped, which leads to the consumption of a large amount of fuel for preheating the equipment in the starting stage, and the energy consumption cost increases significantly. Second, traditional fuels such as natural gas and diesel have the risk of flammability, explosion, leakage and poisoning during storage, especially in the limited space of the laboratory, which further aggravates the safety hidden danger. Third, during the combustion process, if the composition of the waste liquid is complex, it may not burn completely, which may produce carbon monoxide and other toxic gases, threatening the safety of the operators. In addition, due to the complex and variable composition of the waste liquid containing hydrocarbons, pesticides, phenols and other organic matters, it is difficult to accurately adjust the temperature by traditional combustion method. Insufficient temperature will lead to incomplete decomposition of harmful substances, while excessive temperature may produce additional nitrogen oxides and other pollutants, increasing the difficulty of subsequent tail gas treatment. In addition, traditional fuel combustion will produce a large amount of carbon dioxide, which will increase carbon emissions. At the same time, nitrogen oxides, sulfides and unburned organic matter produced by waste liquid combustion will further complicate the composition of the tail gas, requiring complex tail gas purification equipment, which not only increases the equipment cost, but also makes the treatment process cumbersome and inefficient. Therefore, the present application provides a multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment to meet the needs. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment. By setting an electric heating mechanism, the water or low-boiling-point organic matter in the waste liquid can be heated and evaporated. At the same time, 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. The equipment can provide sufficient heat for the waste liquid to evaporate completely. The above settings can solve the problem of using fossil, gas or liquid fuel as combustion-supporting energy.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] A multi-thermal core temperature-controlled coupled laboratory waste liquid disposal device includes a waste liquid treatment equipment body, a base installed at the bottom of the waste liquid treatment equipment body, an insulation door installed on the waste liquid treatment equipment body, a waste liquid inlet at the top of the waste liquid treatment equipment body, a denitrification agent nozzle on the side of the waste liquid treatment equipment body near the waste liquid inlet, a tail gas outlet at the bottom of the waste liquid treatment equipment body, and an ash collection port at the bottom of the waste liquid treatment equipment body; an electric heating mechanism for treating laboratory waste liquid by using electrical energy to generate heat, the electric heating mechanism being connected to the waste liquid treatment equipment body; and a mixing mechanism for uniformly mixing the heat generated by the electric heating mechanism within the working space, the mixing mechanism being connected to the electric heating mechanism.

[0007] Optionally, 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, an insulation layer installed on the outer wall of the main body of the waste liquid treatment equipment, a first heater installed inside the outer furnace chamber, a second heater installed inside the inner furnace chamber, a middle furnace chamber formed between the outer furnace chamber and the inner furnace chamber, and a thermocouple installed on one side of the main body of the waste liquid treatment equipment.

[0008] Optionally, the mixing mechanism includes mounting frames installed at the top and bottom of the inner furnace, blades are equidistantly mounted 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.

[0009] Optionally, 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.

[0010] Optionally, 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 fixedly connected to the top and bottom of the first frame, and a second frame fixedly connected to the top of the first frame.

[0011] Optionally, 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.

[0012] Optionally, the fourth frame is made of plastic, and a weakening part is provided on the side of the fourth frame away from the ash discharge port.

[0013] Optionally, the bottom of the ash falling port is provided with a second insertion slot.

[0014] Optionally, the fourth frame body is square in section, and the limiting rod is L-shaped in section.

[0015] Optionally, the bottom of the ash falling port is provided with a first limiting slot, and the bottom of the ash falling port is provided with a second limiting slot.

[0016] Compared with the prior art, the present application has at least the following beneficial effects:

[0017] 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, 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 through high temperature, which can provide sufficient heat for the waste liquid to completely evaporate. Compared with the treatment method using fossil fuels, gas or liquid fuels 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.

[0018] By setting the outer hearth and the inner hearth in the electric heating mechanism, the outer hearth assists in heating the middle hearth from the outside, and the high temperature generated by the first heater needs to be borne by the outer hearth. In order to reduce heat loss, the outer hearth is made of non-metallic material with high temperature resistance and poor heat conductivity. The inner hearth serves as the main heating device and supplies heat to the middle hearth 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 hearth, significantly improving energy utilization efficiency and reducing energy consumption. The inner hearth must have the characteristics of high temperature resistance, good heat conductivity and resistance to tail gas corrosion, and it is made of high-temperature-resistant and corrosion-resistant metal materials or composite materials. The cooperation between the structures can make the temperature of the middle hearth meet the requirements and make the difficult-to-decompose components in the waste liquid decompose completely.

[0019] By setting 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. The heat preservation layer adopts a multi-layer composite heat insulation structure, the innermost layer is made of refractory fiber material, the middle layer is made of nano heat insulation plate, the outer layer is made of foamed polyurethane heat insulation material, and the outermost layer is sealed with stainless steel plate, which maximizes the reduction of heat dissipation of the furnace body.

[0020] By setting the blade in the mixing mechanism, the rotation of the blade promotes the rapid flow of air in the combustion section, realizes the uniform distribution of heat, effectively avoids the problem that incomplete treatment is caused by uneven heating of waste liquid, the blade adopts the upward convex arc structure, which can not only significantly improve the influence on the air flow rate in the combustion section, but also effectively prevent the waste liquid from accumulating on the blade due to gravity, avoid hindering the flow of waste liquid to the bottom of the waste liquid treatment equipment body, and ensure the stable and efficient operation of the laboratory waste liquid treatment work.

[0021] 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 scaling 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 using the power source of the device itself to drive the assembly, additional power supply is not required, which significantly reduces the energy consumption and waste liquid treatment cost; through the automatic cleaning of the inner wall of the dust falling port 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.

[0022] In summary, the device takes electric heating as the core energy source, and realizes waste liquid treatment and equipment maintenance through the cooperation of multiple components. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the present application and to enable a person skilled in the relevant art to implement and use the present application.

[0024] Figure 1 First perspective sectional structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0025] Figure 2 Second perspective sectional structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0026] Figure 3 Stereoscopic structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0027] Figure 4 Third perspective sectional structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0028] Figure 5 Fourth perspective sectional structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0029] Figure 6 First perspective sectional stereoscopic structure schematic diagram of multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment;

[0030] Figure 7 Second perspective sectional stereoscopic structure diagram of multi-thermal nuclear temperature control coupling laboratory waste liquid disposal equipment from a second perspective;

[0031] Figure 8 For Figure 7 Enlarged structure diagram at A;

[0032] Figure 9 For inner furnace and mounting skeleton assembly sectional stereoscopic enlarged structure diagram;

[0033] Figure 10 For connecting skeleton and tooth ring assembly stereoscopic enlarged structure diagram;

[0034] Figure 11 For connecting skeleton and tooth ring assembly stereoscopic enlarged structure diagram;

[0035] Figure 12 For Figure 11 Enlarged structure diagram at B;

[0036] Figure 13 For connecting skeleton and tooth ring assembly enlarged structure diagram;

[0037] Figure 14 For Figure 13 Enlarged structure diagram at C;

[0038] Figure 15 For fourth frame body and limiting rod assembly stereoscopic enlarged structure diagram;

[0039] Figure 16 For Figure 15 Enlarged structure diagram at D.

[0040] Reference signs:

[0041] 1, waste liquid treatment equipment main body; 2, base; 3, heat insulation door; 4, waste liquid inlet; 5, denitration agent injection port; 6, tail gas outlet; 7, ash outlet; 8, mixing section; 9, combustion section; 10, burnout section; 11, outer furnace; 12, inner furnace; 13, heat preservation layer; 14, thermocouple; 15, driving assembly; 16, blade; 17, mounting skeleton; 18, connecting skeleton; 19, tooth ring; 20, first frame body; 21, second frame body; 22, slot; 23, third frame body; 24, fourth frame body; 25, first insertion slot; 26, weakening part; 27, limiting rod; 28, first limiting groove; 29, second insertion slot; 30, second limiting groove; 31, third insertion slot; 32, rotating block.

[0042] As shown in the drawings, in order to clearly show the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application to the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION

[0043] A multi-thermal nuclear temperature control coupled laboratory waste liquid disposal equipment provided by the present application is described in detail below in combination with the drawings and specific embodiments. It should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0044] It should be noted that in the specification, "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include a specific feature, structure or property, but not necessarily every embodiment includes the specific feature, structure or property. In addition, when a specific feature, structure or property is described in combination with an embodiment, it is within the knowledge of those skilled in the related art to implement such a feature, structure or property in combination with other embodiments whether or not it is explicitly described.

[0045] Generally, the terms can be understood at least in part from the context in which they are used. For example, depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular or can be used to describe combinations of features, structures, or characteristics, in the plural, without necessarily dictating whether any such feature, structure, or characteristic is required, desired, or necessary only once, or some multiple thereof. Additionally, the term "based on" can be understood as not necessarily of exclusive alternatives, but rather as allowing for adding some other independent features, structures, or characteristics, but without necessarily excluding possible dependencies that can exist in addition to the features, structures, or characteristics that can be described as "based on."

[0046] It can be understood that the meanings of "on", "above", and "over" in the present application should be interpreted in the broadest way, so that "on" not only means "directly on" something, but also includes the meaning of "on" something with intervening features or layers therebetween, and "above" or "over" not only means the meaning of "above" or "over" something, but also can include the meaning of "above" or "over" something without intervening features or layers therebetween.

[0047] 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.

[0048] Example 1: As Figures 1 to 4 As shown, an embodiment of the present invention 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, which is used to treat the laboratory waste liquid by using electrical energy to generate heat, and is connected to the waste liquid treatment equipment body 1; and a mixing mechanism, which is used to mix the heat generated by the electric heating mechanism evenly in the working space, and is connected to the electric heating mechanism.

[0049] 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.

[0050] Specifically, the electric heating mechanism is used to heat and treat the laboratory waste liquid by using electric energy. The electric heating mechanism is connected with the waste liquid treatment equipment main body 1. Compressed air is introduced at the waste liquid inlet 4, and a spray head is installed. The waste liquid is atomized by the spray head and then sprayed into the waste liquid treatment equipment main body 1. At the same time, the misty denitration agent is introduced at the denitration agent nozzle 5, so as to promote the waste liquid to fully contact and react with the denitration agent. The high-molecular composite denitration agent reacts with the atomized waste liquid, which can effectively inhibit the generation of nitrogen oxides at high temperature and reduce the difficulty of subsequent tail gas denitration treatment. The base 2 and the spray head adopt existing mature technologies, and the working principle and specific structure are not described here. The electric heating mechanism provides sufficient heat for the waste liquid to completely evaporate. First, the water or low-boiling-point organic matter in the waste liquid is evaporated by heating. At the same time, harmful substances such as hydrocarbons, pesticides, and phenols in the organic waste liquid are decomposed into inorganic substances such as CO2 and H2O by high temperature. Compared with the treatment method using fossil fuels, gas or liquid fuels 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 practicality.

[0051] As shown in Figures 1 to 4 The electric heating mechanism includes an outer hearth 11 installed in the waste liquid treatment equipment main body 1. An inner hearth 12 is installed in the waste liquid treatment equipment main body 1. A mixing section 8 is arranged at the top of the waste liquid treatment equipment main body 1. A combustion section 9 is arranged at the bottom of the mixing section 8. A burnout section 10 is arranged at the bottom of the combustion section 9. A heat preservation layer 13 is arranged on the outer wall of the waste liquid treatment equipment main body 1. A first heater is arranged in the outer hearth 11. A second heater is arranged in the inner hearth 12. A middle hearth is formed between the outer hearth 11 and the inner hearth 12. A thermocouple 14 is arranged on one side of the waste liquid treatment equipment main body 1. The first heater, the second heater, and the thermocouple 14 all adopt existing mature technologies, and the working principle and specific structure are not described here. The outer hearth 11 assists in heating the middle hearth from the outside. The high temperature generated by the first heater needs to be borne by the outer hearth 11. In order to reduce heat loss, the outer hearth 11 is made of non-metallic material with high temperature resistance and poor heat conductivity. The internal heater can be designed as an equal-section straight line, a variable-section straight line, or a narrow U-shaped. The inner hearth 12 serves as the main heating device and heats the middle hearth from the inside. It can not only ensure uniform temperature in the hearth, but also use all the heat dissipation energy for heating the middle hearth, thereby significantly improving energy utilization efficiency and reducing energy consumption. The high temperature generated by the second heater needs to be quickly transmitted to the middle hearth. Therefore, the inner hearth 12 must have the characteristics of high temperature resistance, good heat conductivity, and resistance to tail gas corrosion. It is made of metal or composite material with high temperature resistance and corrosion resistance. According to the site requirements, the inner hearth 12 can be arranged in sections to ensure that the temperature of the middle hearth meets the requirements and that the difficult-to-decompose components in the waste liquid are completely decomposed.

[0052] The working space composed of the mixing section 8, the combustion section 9 and the burnout section 10 has a structure of "small at both ends and large in the middle", prolongs the reaction process and time of the waste liquid, and ensures complete decomposition of harmful components. Each section is made of temperature-resistant and corrosion-resistant stainless steel, which has the advantages of simple processing, long service life and high strength. The heat preservation layer 13 adopts a multi-layer composite heat insulation structure, the innermost layer is refractory fiber material, the middle layer is nano heat insulation plate, the outer layer is foamed polyurethane heat insulation material, and the outermost layer is sealed with stainless steel plate to minimize heat loss of the furnace body. The spray head is a two-fluid spray head, the waste liquid is delivered by a pump and compressed air is sent into the spray head by a compressor for mixing and atomization, and the atomization power mainly comes from compressed air, which is more energy-saving than the atomization mode of simply increasing the pressure of the liquid.

[0053] In summary, the device forms a heating system of "main heating of the inner furnace 12 and auxiliary heating of the outer furnace 11" by arranging the inner furnace 12 at the central position of the waste liquid treatment equipment main body 1 and arranging the outer furnace 11 on both sides of the inner furnace 12. After the waste liquid enters the mixing section 8 through the waste liquid inlet 4, it reacts with the denitration agent introduced through the denitration agent nozzle 5 to inhibit the generation of nitrogen oxides at high temperature; then it enters the combustion section 9 with the highest temperature, and the temperature is detected in real time by the thermocouple 14 and accurately controlled to ensure that the waste liquid is fully evaporated; finally, it enters the burnout section 10, the tail gas is discharged from the tail gas outlet 6, and the waste residue is discharged from the ash outlet 7. This structure uses electric energy as the energy source to treat laboratory waste liquid, and the components work cooperatively to effectively improve the treatment efficiency.

[0054] Specifically, the temperature threshold is set as follows:

[0055] T1, 1100℃: spray head start temperature, minimum maintenance temperature during waste liquid treatment process.

[0056] T2, 1120℃: first heater shutdown temperature.

[0057] T3, 1150℃: second heater shutdown temperature.

[0058] T4, 1000℃: system failure trigger temperature, when the temperature detected during the operation of the double heaters is lower than this value, a fault is determined.

[0059] Working process:

[0060] After the device is started, the first heater and the second heater start to heat the middle furnace, and when the thermocouple 14 detects that the temperature reaches T1 and stabilizes for 5 minutes, the spray head starts to spray the waste liquid into the mixing section 8 area, and reacts with the misty denitration agent introduced through the denitration agent nozzle 5 to inhibit the generation of nitrogen oxides. According to the different heat values of the waste liquid, the system dynamically adjusts the heating strategy:

[0061] Low heat value waste liquid: if the temperature does not exceed T2 after the spray head is started for 15 minutes, the double heaters continue to operate for 5 minutes.

[0062] Medium-calorific-value waste liquid: When the temperature reaches or exceeds T2 and is maintained for 15 minutes, turn off the first heater;

[0063] High-calorific-value waste liquid: If the temperature rises to T3 and stabilizes for 5 minutes after the first heater is turned off, the second heater is turned off.

[0064] 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.

[0065] Example 2: Figures 4 to 8 As 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:

[0066] 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.

[0067] 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.

[0068] Further, the ash falling port 7 is provided with an installation groove larger than the size of the tooth ring 19 at the top, the tooth ring 19 is stably installed in the installation groove, and the height of the tooth ring 19 can be slightly adjusted within a certain range. The connecting framework 18 is in an arc-shaped structure protruding away from the center of the waste liquid treatment equipment main body 1, and is easy to deform and bend under external force, thereby achieving efficient stirring of the air in the combustion section 9. The blades 16 are arranged in a spiral line at equal intervals along the outer wall of the inner furnace 12. This design can fully promote the air flow in the combustion section 9, so that the heat is evenly dispersed, thereby ensuring the quality of waste liquid treatment. In addition, the blades 16 adopt an upwardly protruding arc-shaped structure, which not only can significantly improve the influence on the air flow rate in the combustion section 9, but also can effectively prevent the waste liquid from accumulating on the blades 16 due to gravity, thereby avoiding hindering the flow of waste liquid to the bottom of the waste liquid treatment equipment main body 1, and ensuring the stable and efficient operation of the laboratory waste liquid treatment work.

[0069] As Figures 7 to 16As shown, the ash falling port 7 is provided with a scraping mechanism, which comprises a first frame 20 arranged at the bottom of the tooth ring 19, the top and bottom of the first frame 20 are fixedly connected with a third frame 23, the top of the first frame 20 is fixedly connected with a second frame 21 which is in the shape of a hook, the bottom of the connecting skeleton 18 is provided with a slot 22, the bottom of the first frame 20 is fixedly connected with a fourth frame 24, the bottom of the ash falling port 7 is provided with a limiting rod 27, the fourth frame 24 is provided with a first slot 25 which is matched with the shape of the limiting rod 27, the bottom of the ash falling port 7 is provided with a second slot 29, the bottom of the ash falling port 7 is provided with a third slot 31, the bottom of the ash falling port 7 is provided with a first limiting slot 28, the bottom of the ash falling port 7 is provided with a second limiting slot 30, the bottom of the ash falling port 7 is rotatably connected with a rotating block 32, the first limiting slot 28, the second slot 29, the second limiting slot 30 and the third slot 31 are arranged above the rotating block 32. During normal operation, the fourth frame 24 is arranged in the second slot 29, and the limiting rod 27 is sequentially arranged in the first limiting slot 28 and the first slot 25, so as to stably fix the fourth frame 24, at this time, the second frame 21 at the top of the first frame 20 is separated from the connecting skeleton 18. When it is necessary to clean the inner wall of the ash falling port 7, the fourth frame 24 is arranged in the third slot 31, the fourth frame 24 is deformed in a curved shape, then the limiting rod 27 is arranged in the second limiting slot 30 and extends into the first slot 25, so as to stably fix the fourth frame 24 in the third slot 31. At this time, the first frame 20 is driven to move close to the tooth ring 19 and press the tooth ring 19, the tooth ring 19 further presses the connecting skeleton 18 upwards, so as to make the connecting skeleton 18 slightly deformed. Then the first frame 20 is rotated, the second frame 21 is arranged to hook the bottom of the connecting skeleton 18 and is arranged in the slot 22, so as to connect the first frame 20 and the connecting skeleton 18. Under the restoring force of the fourth frame 24 and the connecting skeleton 18, the first frame 20 is closely attached to the inner wall of the ash falling port 7, at this time, the driving assembly 15 is started to rotate the first frame 20, and the rotating scraping force is used to clean the scale on the inner wall of the ash falling port 7.

[0070] The cleaning structure ingeniously uses the driving assembly 15 of the device itself as a power source, without additional power supply, which significantly reduces energy consumption and waste liquid treatment cost; through the cooperation of various components, periodic automatic cleaning of the inner wall of the ash falling port 7 is realized, which effectively avoids the problems of narrow channel and blocked ash discharge caused by dust adhesion, and guarantees the efficient and stable operation of the waste liquid treatment process.

[0071] Further, the first frame body 20, the second frame body 21, the third frame body 23 and the fourth frame body 24 are integrally formed, the integrally formed mechanism is good in stability, and is convenient for production and use, the fourth frame body 24 is formed of plastic material, the plastic material has good deformation capacity and is light in quality, the side of the fourth frame body 24 away from the ash falling port 7 is provided with a weakening portion 26, so that the part of the fourth frame body 24 close to the weakening portion 26 is more easily deformed under the action of external force, the cross section of the fourth frame body 24 is square, so that the fourth frame body 24 is not rotated when being installed in the second slot 29 and the third slot 31, and the cross section of the limiting rod 27 is L-shaped, so that the limiting rod 27 is convenient to operate.

[0072] The working principle of the technical scheme provided by the application is as follows:

[0073] When in use, the working principle is as follows:

[0074] After the device is started, the first heater and the second heater start to heat the central furnace. When the thermocouple 14 detects that the temperature reaches T1 and is stable for 5 minutes, the nozzle is started, the waste liquid is atomized and sprayed into the mixing section 8 area, and reacts with the misty denitration agent introduced at the nozzle 5 to inhibit the generation of nitrogen oxides. According to the different heat values of the waste liquid, the system dynamically adjusts the heating strategy:

[0075] Low heat value waste liquid: if the temperature does not exceed T2 after the nozzle is started for 15 minutes, the double heaters continue to run for 5 minutes;

[0076] Medium heat value waste liquid: if the temperature reaches or exceeds T2 and is maintained for 15 minutes, the first heater is closed;

[0077] High heat value waste liquid: if the temperature rises to T3 and is stable for 5 minutes after the first heater is closed for 15 minutes, the second heater is closed.

[0078] If the temperature is lower than T1 during the treatment process, the double heaters are restarted; if the temperature is lower than T4 when the double heaters are running at the same time, the system determines that the heater is faulty and stops.

[0079] The device drives the motor and the bevel gear through the transmission assembly to drive the gear ring 19 to rotate, and then drives the connecting framework 18, the inner furnace 12 and the spiral 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 uniformly heated and completely decomposed.

[0080] In 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 the inner wall of the ash chute 7 needs to be cleaned, the fourth frame 24 is installed to the third slot 31 to be bent, and after being fixed by the limiting rod 27, the second limiting slot 30 and the first slot 25, the first frame 20 extrudes the tooth ring 19 to push the connecting frame 18 to deform, and the second frame 21 hooks the bottom of the connecting frame 18 to complete the connection. Under the rebounding force of the fourth frame 24 and the connecting frame 18, the first frame 20 is tightly attached to the inner wall of the ash chute 7, and the driving assembly 15 is started to drive the first frame 20 to rotate, so that the inner wall is scraped and the dirt is removed. The cleaning process reuses the power source of the device itself, without additional energy consumption, effectively avoids the blockage of the ash chute 7 passage, and reduces the operation cost.

[0081] The whole device realizes efficient treatment of laboratory waste liquid through the synergistic operation of precise temperature control, dynamic heating, forced convection and automatic cleaning, and has safety and economy.

[0082] The present application encompasses any substitutions, modifications, equivalent methods and schemes made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be completely understood without the description of these details to those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0083] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application.

Claims

1. A multi-thermal-nucleus temperature-controlled coupled laboratory waste liquid disposal apparatus, characterized in that, The utility model provides waste liquid treatment equipment, including waste liquid treatment equipment body, the bottom of waste liquid treatment equipment body is installed with the base, waste liquid treatment equipment body is installed with heat insulation door, the top of waste liquid treatment equipment body is equipped with waste liquid inlet, waste liquid treatment equipment body is equipped with denitration agent spout near one side of waste liquid inlet, the bottom of waste liquid treatment equipment body is equipped with tail gas outlet, the bottom of waste liquid treatment equipment body is equipped with ash fall mouth, The electric heating mechanism is used for heating the laboratory waste liquid by using electric energy, and the electric heating mechanism is connected with the waste liquid treatment equipment body. The mixing mechanism is used for mixing the heat generated by the electric heating mechanism uniformly in the working space, and the mixing mechanism is connected with the electric heating mechanism. The electric heating mechanism includes an outer hearth installed in the waste liquid treatment equipment body, an inner hearth installed in the waste liquid treatment equipment body, a mixing section provided at the top of the waste liquid treatment equipment body, a combustion section provided at the bottom of the mixing section, a burnout section provided at the bottom of the combustion section, a heat preservation layer installed on the outer wall of the waste liquid treatment equipment body, a first heater provided in the outer hearth, a second heater provided in the inner hearth, a middle hearth formed between the outer hearth and the inner hearth, and a thermocouple installed on one side of the waste liquid treatment equipment body.

2. The multi-thermal core temperature-controlled coupling laboratory waste disposal apparatus of claim 1, wherein, The mixing mechanism includes mounting skeletons installed at the top and bottom of the inner hearth, blades equidistantly installed on the outer wall of the inner hearth, a connecting skeleton fixedly connected to the bottom of the inner hearth, a gear ring fixedly connected to the bottom of the connecting skeleton, and a driving assembly installed on one side of the combustion section.

3. The multi-thermal core temperature-controlled coupling laboratory waste disposal apparatus of claim 2, wherein, The connecting skeleton is an arc-shaped structure protruding away from the center of the waste liquid treatment equipment body, and a slot is formed in the bottom of the connecting skeleton.

4. The multi-thermal core temperature-controlled coupling laboratory waste disposal apparatus of claim 2, wherein, The ash fall mouth is provided with a scraping mechanism, which includes a first frame body installed at the bottom of the gear ring, third frame bodies fixedly connected to the top and bottom of the first frame body, and a second frame body fixedly connected to the top of the first frame body.

5. The multi-thermal core temperature-controlled coupling laboratory waste disposal apparatus of claim 4, wherein, The bottom of the first frame body is fixedly connected with a fourth frame body, the bottom of the ash fall mouth is provided with a limiting rod, and a first insertion slot is formed in the fourth frame body and matched with the shape of the limiting rod.

6. The multi-thermal core temperature-controlled coupling laboratory waste disposal apparatus of claim 5, wherein, The fourth frame body is made of plastic material, and a weakened portion is provided on the side of the fourth frame body away from the ash fall mouth.

7. The multi-thermal core temperature-controlled coupling laboratory waste disposal apparatus of claim 1, wherein, A second insertion slot is formed in the bottom of the ash fall mouth, and a third insertion slot is formed in the bottom of the ash fall mouth.

8. The multi-thermal core temperature-controlled coupling laboratory waste disposal apparatus of claim 5, wherein, The cross section of the fourth frame body is square, and the cross section of the limiting rod is L-shaped.

9. The multi-thermal core temperature-controlled coupling laboratory waste disposal apparatus of claim 1, wherein, A first limiting slot is formed in the bottom of the ash fall mouth, and a second limiting slot is formed in the bottom of the ash fall mouth.

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