Waste resource processing system and equipment

Abstract

The present invention relates to the technical field of chemical waste recycling, and in particular to a waste resource processing system and equipment. The waste resource processing system includes: a microwave low-temperature desorption furnace, suitable for heating the waste at a first temperature to obtain a first mixed gas and a first solid residue; a microwave cracking furnace, suitable for heating the first solid residue at a second temperature to obtain a second mixed gas and a second solid residue; a microwave gas-phase catalytic cracking furnace, suitable for heating the first mixed gas and / or the second mixed gas at a third temperature to obtain a third mixed gas; a secondary high-temperature gas-phase cracking furnace, suitable for heating the third mixed gas at a fourth temperature to obtain a fourth mixed gas; the fourth mixed gas is condensed and distilled twice to obtain a high-purity titanium tetrachloride solution. The waste resource processing system provided by the present invention can completely decompose organic matter to obtain high-purity titanium tetrachloride, thereby realizing resource processing of titanium tetrachloride.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical waste recycling, and in particular to a waste resource processing system and equipment. Background Art

[0002] Titanium tetrachloride is used as a reaction medium and detergent in the production of polyethylene and polypropylene catalysts. This used titanium tetrachloride is contaminated with large amounts of organic matter and cannot be returned to catalyst manufacturing for reuse. Factories typically send this waste, containing titanium tetrachloride and organic matter, to hazardous waste disposal centers for treatment. However, this is expensive and results in a certain degree of resource waste.

[0003] Existing titanium tetrachloride recovery equipment generally uses distillation to recover titanium tetrachloride from waste containing titanium tetrachloride and organic matter. However, because the boiling points of certain organic substances, such as gasoline, are close to those of titanium tetrachloride, and certain organic substances easily complex with titanium tetrachloride to form more stable compounds, conventional distillation methods cannot produce high-purity titanium tetrachloride. Using conventional heating methods to remove organic matter from waste can easily lead to the following two problems: First, the heated vaporization time of the waste containing titanium tetrachloride and organic matter is long, and the resulting vaporized mixed gas is highly corrosive, easily corroding equipment; second, using conventional heating methods to remove organic matter from waste can easily result in incomplete decomposition of the organic matter, which can cause secondary pollution and waste energy. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the existing titanium tetrachloride recovery equipment in the prior art that it is difficult to recover high-purity titanium tetrachloride from waste containing titanium tetrachloride and organic matter, and it is impossible to recycle the titanium tetrachloride. Thus, a waste resource treatment system is provided that can recover high-purity titanium tetrachloride from waste containing titanium tetrachloride and organic matter and realize resource treatment of titanium tetrachloride.

[0005] To solve the above technical problems, the present invention provides a waste resource processing system, comprising:

[0006] The microwave low-temperature desorption furnace is suitable for heating the waste containing titanium tetrachloride and organic matter at a first temperature under an oxygen-free temperature T1 condition to obtain a first mixed gas and a first solid residue, wherein the value range of T1 is: 150°C ≤ T1 ≤ 350°C;

[0007] a microwave cracking furnace, the input end of which is connected to the output end of the microwave low-temperature desorption furnace, adapted to heat the first solid residue at a second temperature T2 in an anaerobic state to obtain a second mixed gas and a second solid residue, wherein the value range of T2 is: 600° C. ≤ T2 ≤ 650° C.;

[0008] a microwave gas-phase catalytic cracking furnace, the input end of which is connected to the output end of the microwave low-temperature desorption furnace and / or the microwave cracking furnace, and adapted to heat the first mixed gas and / or the second mixed gas at a third temperature T3 under an oxygen-free temperature condition to obtain a third mixed gas, wherein the value range of T3 is: 600°C ≤ T3 ≤ 650°C;

[0009] A secondary high-temperature gas-phase cracking furnace, the input end of which is connected to the output end of the microwave gas-phase catalytic cracking furnace; suitable for heating the third mixed gas at a fourth temperature T4 under an anaerobic condition to obtain a fourth mixed gas, wherein the value range of T4 is: 800°C ≤ T4 ≤ 950°C;

[0010] The fourth mixed gas is condensed and distilled twice to obtain a high-purity titanium tetrachloride solution.

[0011] Optionally, under the anaerobic condition temperature T1, the microwave low-temperature desorption furnace heats the waste containing titanium tetrachloride and organic matter to a first temperature so that titanium tetrachloride and organic matter are desorbed from the waste in the form of gas, thereby obtaining a first mixed gas and a first solid residue, wherein the first mixed gas contains titanium tetrachloride gas and organic matter gas.

[0012] Optionally, under the anaerobic temperature condition T2, the microwave cracking furnace heats the first solid residue at a second temperature so that the first solid residue continues to be heated and cracked, and the organic matter continues to volatilize, desorb and / or crack into a second mixed gas, which is a low-molecular combustible gas; and the remaining second solid residue is sent to a qualified unit for treatment.

[0013] Optionally, under the anaerobic temperature condition T3, the microwave gas-phase catalytic cracking furnace heats the first mixed gas and / or the second mixed gas at a third temperature to decompose the organic matter to obtain a third mixed gas, wherein the third mixed gas contains titanium tetrachloride gas, combustible gas and incompletely cracked organic matter gas.

[0014] Optionally, under the anaerobic temperature condition T4, the secondary high-temperature gas-phase cracking furnace heats the third mixed gas to a fourth temperature to further completely crack the incompletely cracked organic matter in the third mixed gas to obtain a fourth mixed gas, wherein the fourth mixed gas contains titanium tetrachloride gas and combustible gas.

[0015] Optionally, the waste resource processing system further includes:

[0016] a condenser, the input end of which is connected to the output end of the secondary high-temperature gas-phase cracking furnace, adapted to condense the fourth mixed gas to obtain a titanium tetrachloride solution containing residual carbon and combustible gas;

[0017] The secondary distiller, whose input end is connected to the output end of the condenser, is suitable for secondary distillation of the titanium tetrachloride solution containing residual carbon, removing the residual carbon and collecting high-purity titanium tetrachloride solution.

[0018] Optionally, the waste resource processing system further includes a spray tower, which is connected to the output end of the condenser and is suitable for absorbing water-soluble gas to obtain clean combustible gas.

[0019] Optionally, the waste resource processing system further includes an RCO regenerative catalytic combustion furnace, the input end of which is connected to the output end of the microwave cracking furnace and / or the spray tower, and is suitable for completely burning and thoroughly decomposing combustible gases and harmful substances.

[0020] Optionally, the waste resource processing system further includes an exhaust gas purification device, the input end of which is connected to the RCO regenerative catalytic combustion furnace, and is suitable for purifying the exhaust gas after combustion so that the exhaust gas meets the emission standards.

[0021] The present invention also provides a waste resource processing device, comprising:

[0022] The above-mentioned waste resource processing system; the waste resource processing system is a fully enclosed structure;

[0023] Waste resource processing equipment body;

[0024] A control room electrically or communicatively connected to the waste resource processing system;

[0025] A nitrogen purge replacement system, connected to the waste resource treatment system, is suitable for evacuating the air inside the equipment to shield the conditions for dioxin production and ensure the safety of the entire equipment;

[0026] The material level meter is installed in the furnace body and is suitable for regular detection of material level;

[0027] Pressure gauge and / or pressure sensor, suitable for real-time monitoring of pressure in the system;

[0028] The safety valve is installed on the upper part of the furnace body. When the internal pressure of the equipment body suddenly increases, the safety valve automatically opens to empty and release the pressure;

[0029] The oxygen content tester is installed on the main body of the equipment and is linked to the automatic control to start the nitrogen protection device;

[0030] The temperature gauge and / or temperature sensor is suitable for monitoring the operating temperature inside the system in real time.

[0031] The technical solution of the present invention has the following advantages:

[0032] 1. The waste resource recovery system provided by the present invention comprises a microwave low-temperature desorption furnace for heating waste containing titanium tetrachloride and organic matter at a first temperature under an anaerobic temperature condition of T1; a microwave cracking furnace for heating the first solid residue at a second temperature under an anaerobic temperature condition of T2; a microwave gas-phase catalytic cracking furnace for heating the first mixed gas and / or the second mixed gas at a third temperature under an anaerobic temperature condition of T3; and a secondary high-temperature gas-phase cracking furnace for heating the third mixed gas at a fourth temperature under an anaerobic temperature condition of T4 to obtain a fourth mixed gas. The fourth mixed gas is condensed and secondary distilled to obtain a high-purity titanium tetrachloride solution. Thus, during the extraction of titanium tetrachloride, the organic matter can be completely decomposed and completely separated from the titanium tetrachloride, thereby recovering high-purity titanium tetrachloride, thereby achieving resource recovery of titanium tetrachloride.

[0033] 2. The waste resource processing system provided by the present invention is configured to heat the waste containing titanium tetrachloride and organic matter at a first temperature under an anaerobic temperature condition of T1 by setting a microwave low-temperature desorption furnace, so that the titanium tetrachloride and organic matter are desorbed from the waste in the form of gas, thereby obtaining a first mixed gas and a first solid residue, wherein the first mixed gas contains titanium tetrachloride gas and organic matter gas, wherein the value range of T1 is: 150°C ≤ T1 ≤ 350°C, and then titanium tetrachloride is preliminarily separated and extracted from the waste under the temperature condition of T1.

[0034] 3. The waste resource processing system provided by the present invention is provided with a microwave cracking furnace, thereby heating the first solid residue at a second temperature under an anaerobic temperature condition T2, so that the first solid residue continues to be heated and cracked, and the organic matter continues to volatilize, desorb and / or crack into a second mixed gas, which is a low-molecular combustible gas; and the remaining second solid residue is sent to a qualified treatment unit for treatment, wherein the value range of T2 is: 600°C ≤ T2 ≤ 650°C, and titanium tetrachloride is further separated and extracted from the first solid residue under the temperature condition T2.

[0035] 4. The waste resource processing system provided by the present invention is provided with a microwave gas-phase catalytic cracking furnace, thereby heating the first mixed gas and / or the second mixed gas at a third temperature T3 under anaerobic temperature conditions to decompose organic matter to obtain a third mixed gas. The third mixed gas contains titanium tetrachloride gas, combustible gas, and incompletely cracked organic matter gas, wherein the value range of T3 is: 600°C ≤ T3 ≤ 650°C, and titanium tetrachloride is further separated and extracted from the first mixed gas and / or the second mixed gas under the temperature T3 condition.

[0036] 5. The waste resource processing system provided by the present invention heats the third mixed gas at a fourth temperature under anaerobic temperature conditions (T4) by providing a secondary high-temperature gas-phase cracking furnace, thereby further completely cracking the incompletely cracked organic matter in the third mixed gas to produce a fourth mixed gas containing titanium tetrachloride gas and combustible gas. The value range of T4 is 800°C ≤ T4 ≤ 950°C, and titanium tetrachloride is further separated and extracted from the third mixed gas under temperature conditions (T4).

[0037] 6. The waste resource processing system provided by the present invention condenses the fourth mixed gas by providing a condenser, and removes the heat of the gas by circulating the coolant in the plate heat exchanger, causing titanium tetrachloride to condense on the plate wall, thereby obtaining a titanium tetrachloride solution containing residual carbon and combustible gas; and provides a secondary distiller to perform secondary distillation on the titanium tetrachloride solution containing residual carbon to remove the residual carbon, thereby collecting a high-purity titanium tetrachloride solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 Schematic diagram of the working principle of the waste resource treatment system of the present invention;

[0040] Figure 2 It is a schematic diagram of the top view of the waste resource treatment system of the present invention.

[0041] Description of reference numerals:

[0042] 11. Microwave low-temperature desorption furnace; 12. Microwave cracking furnace; 13. Microwave gas-phase catalytic cracking furnace; 14. Secondary high-temperature gas-phase cracking furnace; 15. Waste storage device; 16. Residue packaging device;

[0043] 21. Condenser; 22. Secondary distiller; 23. Secondary condensate collection device; 24. Titanium tetrachloride storage tank; 25. Refrigeration unit;

[0044] 31. Spray tower; 32. RCO regenerative catalytic combustion furnace; 33. Tail gas purification device; 34. Standard compliance detection and emission device; 35. Hydrogen chloride solution collection tank;

[0045] 40. Control room. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] Example 1

[0051] Combine Figure 1 、 Figure 2 As shown, the waste resource processing system provided in this embodiment includes:

[0052] The microwave low-temperature desorption furnace 11 is suitable for heating the waste containing titanium tetrachloride and organic matter at a first temperature under an oxygen-free temperature T1 condition to obtain a first mixed gas and a first solid residue, wherein the value range of T1 is: 150°C ≤ T1 ≤ 350°C;

[0053] The microwave cracking furnace 12, whose input end is connected to the output end of the microwave low-temperature desorption furnace 11, is suitable for heating the first solid residue at a second temperature T2 in an oxygen-free state to obtain a second mixed gas and a second solid residue, wherein the value range of T2 is: 600°C ≤ T2 ≤ 650°C;

[0054] The microwave gas-phase catalytic cracking furnace 13 has an input end connected to the output end of the microwave low-temperature desorption furnace 11 and / or the microwave cracking furnace 12, and is suitable for heating the first mixed gas and / or the second mixed gas at a third temperature T3 under an oxygen-free temperature condition to obtain a third mixed gas, wherein the value range of T3 is: 600°C ≤ T3 ≤ 650°C;

[0055] The secondary high-temperature gas-phase cracking furnace 14 has an input end connected to the output end of the microwave gas-phase catalytic cracking furnace 13; and is suitable for heating the third mixed gas at a fourth temperature T4 under an oxygen-free temperature condition to obtain a fourth mixed gas, wherein the value range of T4 is: 800°C ≤ T4 ≤ 950°C;

[0056] The fourth mixed gas is condensed and distilled twice to obtain a high-purity titanium tetrachloride solution.

[0057] It should be noted that the microwave low-temperature desorption furnace 11, the microwave cracking furnace 12, the microwave gas-phase catalytic cracking furnace 13 and / or the secondary high-temperature gas-phase cracking furnace 14 are the main reactors of the waste resource treatment system; the waste resource treatment system can be used to treat waste containing titanium tetrachloride and organic matter, and can also be used to treat other similar waste liquids and waste residues containing organic matter. The treatment objects of the waste resource treatment system include but are not limited to waste containing titanium tetrachloride and organic matter.

[0058] Optionally, the waste resource processing system further includes a waste storage device 15, the output end of the waste storage device 15 is connected to the input end of the microwave low-temperature desorption furnace 11; the waste storage device 15 is suitable for sealed storage of waste containing titanium tetrachloride and organic matter.

[0059] Optionally, the value of T1 is 300° C., and under an oxygen-free temperature of 300° C., the microwave low-temperature desorption furnace 11 heats the waste containing titanium tetrachloride and organic matter at a first temperature to obtain a first mixed gas and a first solid residue.

[0060] Optionally, the output end of the microwave low-temperature desorption furnace 11 is connected to at least two conveying pipelines, one of which is suitable for conveying the first mixed gas to the microwave gas-phase catalytic cracking furnace 13, and the other is suitable for conveying the first solid residue to the microwave cracking furnace 12.

[0061] Optionally, the value of T2 is 600° C., and under the condition of 600° C. in the absence of oxygen, the microwave cracking furnace 12 heats the first solid residue at a second temperature to obtain a second mixed gas and a second solid residue.

[0062] Optionally, the waste resource processing system further includes a residue packaging device 16, the input end of the residue packaging device 16 is connected to the output end of the microwave cracking furnace 12; the residue packaging device 16 is suitable for packaging and storing the second solid residue, so as to facilitate sending it to a qualified unit for processing.

[0063] Optionally, the output end of the microwave cracking furnace 12 is connected to at least two delivery pipelines, one of which is suitable for delivering the second mixed gas to the RCO regenerative catalytic combustion furnace 32, and the other is suitable for delivering the second mixed gas to the microwave gas-phase catalytic cracking furnace 13.

[0064] Optionally, the output end of the microwave cracking furnace 12 is also connected to a spiral conveying pipe, which is connected to the residue packaging device 16; the spiral conveying pipe is suitable for conveying the second solid residue to the residue packaging device 16; after the second solid residue is cooled to room temperature, it is bagged and sent to a qualified unit for processing.

[0065] Optionally, the value of T3 is 600° C., and under the oxygen-free temperature condition of 600° C., the microwave gas-phase catalytic cracking furnace 13 heats the first mixed gas and / or the second mixed gas to a third temperature to obtain a third mixed gas.

[0066] Optionally, the output end of the microwave gas-phase catalytic cracking furnace 13 is connected to at least one delivery pipeline, wherein one delivery pipeline is suitable for delivering the third mixed gas to the secondary high-temperature gas-phase cracking furnace 14 .

[0067] Optionally, the value of T4 is 800° C., and under the oxygen-free temperature condition of 800° C., the secondary high-temperature gas-phase cracking furnace 14 heats the third mixed gas to a fourth temperature to obtain a fourth mixed gas.

[0068] Optionally, the output end of the secondary high-temperature gas-phase cracking furnace 14 is connected to at least one delivery pipeline, wherein one delivery pipeline is suitable for delivering the fourth mixed gas to the condenser 21 .

[0069] Optionally, the waste resource processing system uses clean energy electricity as an energy source.

[0070] Optionally, the microwave low-temperature desorption furnace 11, microwave cracking furnace 12, microwave gas-phase catalytic cracking furnace 13 and / or secondary high-temperature gas-phase cracking furnace 14 are fully enclosed structures to ensure that the material is isolated from the air during cracking, so that the microwave low-temperature desorption furnace 11, microwave cracking furnace 12, microwave gas-phase catalytic cracking furnace 13 and / or secondary high-temperature gas-phase cracking furnace 14 as the main reactor have no combustion process, which is more environmentally friendly and safer.

[0071] In this embodiment, a microwave low-temperature desorption furnace 11 is provided to heat the waste containing titanium tetrachloride and organic matter at a first temperature under an anaerobic temperature condition of T1; a microwave cracking furnace 12 is provided to heat the first solid residue at a second temperature under an anaerobic temperature condition of T2; a microwave gas-phase catalytic cracking furnace 13 is provided to heat the first mixed gas and / or the second mixed gas at a third temperature under an anaerobic temperature condition of T3; a secondary high-temperature gas-phase cracking furnace 14 is provided to heat the third mixed gas at a fourth temperature under an anaerobic temperature condition of T4 to obtain a fourth mixed gas, and the fourth mixed gas is condensed and distilled twice to obtain a high-purity titanium tetrachloride solution; thereby, in the process of extracting titanium tetrachloride, the organic matter can finally be completely decomposed and completely separated from the titanium tetrachloride, and then high-purity titanium tetrachloride can be recovered, thereby realizing resource processing of titanium tetrachloride.

[0072] The fourth mixed gas is condensed and distilled twice to obtain a high-purity titanium tetrachloride solution.

[0073] Specifically, under the anaerobic condition temperature T1, the microwave low-temperature desorption furnace 11 heats the waste containing titanium tetrachloride and organic matter at a first temperature so that titanium tetrachloride and organic matter are desorbed from the waste in the form of gas, thereby obtaining a first mixed gas and a first solid residue, wherein the first mixed gas contains titanium tetrachloride gas and organic matter gas.

[0074] Optionally, since the boiling point of titanium tetrachloride is 136.4°C, T1 can be 300°C. Under anaerobic temperature conditions of 300°C, the microwave low-temperature desorption furnace 11 heats the waste containing titanium tetrachloride and organic matter at a first temperature, thereby causing titanium tetrachloride and low-boiling-point organic matter to volatilize and desorb from the waste.

[0075] Optionally, the microwave low-temperature desorption furnace 11 is a hexagonal columnar structure; the microwave low-temperature desorption furnace 11 is operated in an overall sealed manner.

[0076] Optionally, the interior of the microwave low-temperature desorption furnace 11 is lined with a corrosion-resistant, high-temperature resistant, high-strength, microwave-transparent heat-resistant material. Since the heat-resistant material has excellent mechanical and chemical properties, it can greatly extend the service life of the furnace body, reduce the maintenance amount of the furnace body, and reduce operating costs.

[0077] Optionally, the interior of the microwave low-temperature desorption furnace 11 is insulated with thermal insulation cotton to reduce energy loss of the equipment and ensure that the surface temperature of the equipment does not exceed 50°C.

[0078] Optionally, a feeding port is provided on the upper portion of the microwave low-temperature desorption furnace 11 , and the feeding port is suitable for being connected to the output end of the waste storage device 15 .

[0079] Optionally, a stirring device and an exhaust port are provided on the upper portion of the microwave low-temperature desorption furnace 11; the stirring device is used to stir the waste so that the titanium tetrachloride in the waste is fully released and volatilized.

[0080] Optionally, a slag outlet is provided at the bottom of the microwave low-temperature desorption furnace 11 , and the slag outlet is suitable for being connected to the input end of the microwave cracking furnace 12 .

[0081] In this embodiment, a microwave low-temperature desorption furnace 11 is provided to heat the waste containing titanium tetrachloride and organic matter at a first temperature under an anaerobic temperature condition T1, so that the titanium tetrachloride and organic matter are desorbed from the waste in the form of gas, thereby obtaining a first mixed gas and a first solid residue. The first mixed gas contains titanium tetrachloride gas and organic matter gas, wherein the value range of T1 is: 150°C ≤ T1 ≤ 350°C, and then titanium tetrachloride is preliminarily separated and extracted from the waste under the temperature condition T1.

[0082] Specifically, under the anaerobic temperature condition T2, the microwave cracking furnace 12 heats the first solid residue to a second temperature so that the first solid residue continues to be heated and cracked, and the organic matter continues to volatilize, desorb and / or crack into a second mixed gas, which is a low-molecular combustible gas; and the remaining second solid residue is sent to a qualified unit for treatment.

[0083] Optionally, under oxygen-free temperature conditions of 600° C., the first solid residue is subjected to microwave catalysis in the microwave cracking furnace 12 and continues to be heated for cracking, and the organic matter in the first solid residue continues to volatilize, desorb, and crack into low-molecular combustible gas.

[0084] Optionally, the main structure of the microwave cracking furnace 12 is substantially the same as that of the microwave low-temperature desorption furnace 11, and the operation mode is also substantially the same, which will not be described in detail here. The difference is that the internal temperature of the microwave cracking furnace 12 is controlled at above 600°C;

[0085] The microwave cracking furnace 12 is connected to either the RCO regenerative catalytic combustion furnace 32 or the microwave gas-phase catalytic cracking furnace 13. When the second mixed gas enters the RCO regenerative catalytic combustion furnace 32 for combustion, if no residual titanium tetrachloride is detected, the microwave cracking furnace 12 and the RCO regenerative catalytic combustion furnace 32 remain connected. When the second mixed gas enters the RCO regenerative catalytic combustion furnace 32 for combustion, if residual titanium tetrachloride is detected, the microwave cracking furnace 12 and the microwave gas-phase catalytic cracking furnace 13 are connected, so that the second mixed gas is transported to the microwave gas-phase catalytic cracking furnace 13 for treatment.

[0086] In this embodiment, a microwave cracking furnace 12 is provided to heat the first solid residue at a second temperature under an anaerobic temperature condition T2, so that the first solid residue continues to be heated and cracked, and the organic matter continues to volatilize, desorb and / or crack into a second mixed gas, which is a low-molecular combustible gas; and the remaining second solid residue is sent to a qualified unit for treatment, wherein the value range of T2 is: 600°C ≤ T2 ≤ 650°C, and titanium tetrachloride is further separated and extracted from the first solid residue under the temperature condition T2.

[0087] Specifically, under the anaerobic temperature condition T3, the microwave gas-phase catalytic cracking furnace 13 heats the first mixed gas and / or the second mixed gas at a third temperature to decompose the organic matter to obtain a third mixed gas, wherein the third mixed gas contains titanium tetrachloride gas, combustible gas and incompletely cracked organic matter gas.

[0088] Optionally, the microwave gas-phase catalytic cracking furnace 13 is provided with a high microwave absorption material with a catalyst, and is also provided with a high-temperature and corrosion-resistant temperature sensor for temperature monitoring. The microwave source power is automatically adjusted according to the energy demand of the gas production in the front section to stabilize it within a certain temperature range.

[0089] Alternatively, under oxygen-free conditions at 600°C, microwave gas-phase catalytic cracking furnace 13 undergoes microwave catalysis, cracking most of the gas entering the furnace. This cracking process also produces residual carbon, some of which falls to a storage tank at the bottom under gravity. During this process, the cracked gas, unreacted titanium tetrachloride gas, and uncracked gas are piped into secondary high-temperature gas-phase cracking furnace 14 for further cracking.

[0090] In this embodiment, a microwave gas-phase catalytic cracking furnace 13 is provided to heat the first mixed gas and / or the second mixed gas at a third temperature under an anaerobic temperature condition of T3, so as to decompose the organic matter to obtain a third mixed gas. The third mixed gas contains titanium tetrachloride gas, combustible gas, and incompletely cracked organic matter gas. The value range of T3 is: 600°C ≤ T3 ≤ 650°C, and titanium tetrachloride is further separated and extracted from the first mixed gas and / or the second mixed gas under the temperature condition of T3.

[0091] Specifically, under the anaerobic temperature condition T4, the secondary high-temperature gas-phase cracking furnace 14 heats the third mixed gas to a fourth temperature to further completely crack the incompletely cracked organic matter in the third mixed gas to obtain a fourth mixed gas containing titanium tetrachloride gas and combustible gas.

[0092] Optionally, the main body of the secondary high-temperature gas-phase cracking furnace 14 is a quadrilateral columnar structure.

[0093] Optionally, the interior of the secondary high-temperature gas-phase cracking furnace 14 is lined with corrosion-resistant, high-temperature-resistant, high-strength heat-resistant materials, and is heated by silicon carbide heating tubes at a temperature of above 800°C.

[0094] Optionally, a heat storage ceramic material is provided inside the secondary high-temperature gas-phase cracking furnace 14. The heat storage ceramic material has a honeycomb structure, a large specific surface area, high heat capacity, fast heat transfer, low pressure drop, and resistance to fouling and clogging. The heat storage ceramic material is suitable for energy storage and heat release, and can quickly decompose when organic gas touches the heat storage body.

[0095] Optionally, a high-temperature and corrosion-resistant temperature sensor is provided inside the secondary high-temperature gas-phase cracking furnace 14. The temperature sensor is suitable for monitoring the temperature inside the secondary high-temperature gas-phase cracking furnace 14. According to the energy demand of the gas production in the front section, the current is adjusted to stabilize the interior of the secondary high-temperature gas-phase cracking furnace 14 within a preset temperature range.

[0096] Optionally, the secondary high-temperature gas-phase cracking furnace 14 has two layers of insulation, one of which is a ceramic fiber blanket and the other is a ceramic fiber module. A heat-resistant steel frame is placed within the ceramic fiber module, which is fixed to the furnace shell with anchors. The outer surface is coated with a high-temperature resistant ceramic adhesive to reduce energy loss and ensure that the surface temperature of the equipment does not exceed 50°C.

[0097] In this embodiment, a secondary high-temperature gas-phase cracking furnace 14 is provided to heat the third mixed gas at a fourth temperature under an anaerobic temperature condition of T4, so that the incompletely cracked organic matter in the third mixed gas is further completely cracked to obtain a fourth mixed gas. The fourth mixed gas contains titanium tetrachloride gas and combustible gas, wherein the value range of T4 is: 800°C ≤ T4 ≤ 950°C, and titanium tetrachloride is further separated and extracted from the third mixed gas under the temperature condition of T4.

[0098] Specifically, the waste resource processing system also includes:

[0099] The condenser 21, whose input end is connected to the output end of the secondary high-temperature gas-phase cracking furnace 14, is suitable for condensing the fourth mixed gas to obtain a titanium tetrachloride solution containing residual carbon and a combustible gas;

[0100] The secondary distiller 22 has an input end connected to the output end of the condenser 21 and is suitable for performing secondary distillation on the titanium tetrachloride solution containing residual carbon to remove the residual carbon and collect a high-purity titanium tetrachloride solution.

[0101] Optionally, the waste resource processing system further includes a refrigeration unit 25 , and the refrigeration unit 25 is connected to the condenser 21 .

[0102] Optionally, the condenser 21 adopts a plate heat exchanger and an external refrigeration unit 25. The cracked gas and gaseous titanium tetrachloride enter the condenser 21 through the pipeline. The coolant circulates in the plate heat exchanger to take away the heat of the gas, causing the titanium tetrachloride to condense on the plate exchange wall. At the same time, the cracked residual carbon will adhere to the titanium tetrachloride on the condenser wall. When the condensation amount accumulates to a certain level, it falls into the collection tank below in strands due to gravity. The discharged titanium tetrachloride solution containing residual carbon then enters the secondary distiller 22 for secondary distillation.

[0103] Optionally, the condenser 21 is further provided with an exhaust port, which is suitable for conveying non-condensable gas to the next-stage device for water washing.

[0104] Optionally, the exhaust port is provided with a temperature sensor, which is suitable for determining the effect of condensation inside the condenser 21 and monitoring and adjusting the internal temperature of the condenser 21 in real time.

[0105] Optionally, the secondary distiller 22 is a high-temperature, corrosion-resistant, fully sealed heating device, which is heated by thermal oil and equipped with a temperature control system for automatic temperature regulation; the secondary distiller 22 is insulated as a whole with thermal insulation materials.

[0106] Optionally, the secondary distiller 22 performs secondary distillation on the titanium tetrachloride solution containing residual carbon at a temperature of 150° C., so that the titanium tetrachloride evaporates, and then performs secondary condensation to collect the titanium tetrachloride solution without residual carbon.

[0107] Optionally, the waste resource processing system further includes a secondary condensation collection device 23, which is connected to the secondary distiller 22 and is suitable for secondary condensing the titanium tetrachloride after secondary distillation to obtain a titanium tetrachloride solution free of residual carbon.

[0108] Optionally, the waste resource processing system further includes a titanium tetrachloride storage tank 24 , which is connected to the secondary condensation collection device 23 , and is suitable for storing high-purity titanium tetrachloride solution.

[0109] In this embodiment, a condenser 21 is provided to condense the fourth mixed gas, and a coolant circulates in the plate heat exchanger to remove the heat of the gas, causing titanium tetrachloride to condense on the plate heat exchanger wall, thereby obtaining a titanium tetrachloride solution containing residual carbon and combustible gas. A secondary distiller 22 is provided to perform secondary distillation on the titanium tetrachloride solution containing residual carbon to remove the residual carbon, thereby collecting a high-purity titanium tetrachloride solution.

[0110] Specifically, the waste resource processing system further includes a spray tower 31 , which is connected to the output end of the condenser 21 and is suitable for absorbing water-soluble gas to obtain clean combustible gas.

[0111] Optionally, the liquid sprayed by the spray tower 31 is pure water, and the spray tower 31 is suitable for absorbing gases such as hydrogen chloride that are soluble in water to obtain clean combustible gas.

[0112] The waste resource processing system further includes a hydrogen chloride solution collecting tank 35 , which is connected to the bottom of the spray tower 31 and is suitable for collecting and storing hydrogen chloride solution.

[0113] Optionally, the spray tower 31 adopts differential contact countercurrent spraying. The filler in the spray tower 31 is the basic component for gas-liquid two-phase contact, thereby providing a sufficiently large surface area without causing excessive resistance to the gas-liquid flow; during the movement of the gas in the spray tower 31, the concentration of the fluid in the rising air flow becomes lower and lower, and the discharge requirements are met when it is about to reach the top of the tower.

[0114] Optionally, the air inlet of the spray tower 31 is equipped with a device to prevent the backflow of water vapor in the rear section, thereby avoiding the backflow of water vapor in the rear section and improving the purification efficiency.

[0115] Specifically, the waste resource processing system also includes an RCO regenerative catalytic combustion furnace 32, whose input end is connected to the output end of the microwave cracking furnace 12 and / or the spray tower 31, and is suitable for completely burning and thoroughly decomposing combustible gases and harmful substances.

[0116] Optionally, the RCO regenerative catalytic combustion furnace 32 is provided with a burner and a secondary hot air supply device to ensure that the gas is fully in contact with oxygen at high temperature, and the flue gas residence time is greater than 2 seconds, thereby ensuring that dioxins can be completely decomposed. The secondary air provided by the secondary hot air supply device can cause the gas to form a vortex in the RCO regenerative catalytic combustion furnace 32, thereby enhancing the disturbance of the gas, greatly improving the combustion efficiency, and increasing the destruction rate of harmful substances.

[0117] Optionally, the air supply volume of the secondary hot air supply device can be automatically adjusted according to the oxygen content in the gas.

[0118] Optionally, the interior of the RCO regenerative catalytic combustion furnace 32 is provided with heat storage, high temperature resistant and corrosion resistant materials.

[0119] Optionally, the internal temperature of the RCO regenerative catalytic combustion furnace 32 is in the range of 850°C to 1100°C.

[0120] Optionally, a temperature sensor is provided inside the RCO regenerative catalytic combustion furnace 32 , and the power output is adjusted by detecting the temperature through the temperature sensor, so as to maintain a constant temperature inside the cavity.

[0121] Optionally, the RCO regenerative catalytic combustion furnace 32 is further provided with a safety valve. Even if deflagration occurs during the combustion process, the pressure in the furnace can be urgently discharged through the safety valve to release the flue gas, thereby avoiding safety accidents.

[0122] Specifically, the waste resource processing system further includes an exhaust gas purification device 33, the input end of which is connected to the RCO regenerative catalytic combustion furnace 32, suitable for purifying the exhaust gas after combustion so that the exhaust gas meets the emission standards.

[0123] It should be noted that, in the gas after combustion of the RCO regenerative catalytic combustion equipment, some gases may not be completely burned, and some gases may be toxic and harmful. Therefore, it is necessary to set up an exhaust gas purification device 33 to purify the exhaust gas after combustion; in the exhaust gas purification process, the acidic gas containing hydrogen chloride is transported to the bottom of the alkali absorption tower equipped with ball ring packing through a pipeline, and after alkali absorption, it is led out from the top of the tower into the water washing tower, and the dilute alkali liquid is sucked from the liquid alkali storage tank by an alkali-resistant pump, and circulated and sprayed downward from the top of the tower, and reversely contacts with the acidic gas to remove the acidic gas, and the alkali liquid is returned to the liquid alkali storage tank; the washing effect decreases significantly with the increase of the processing volume When the flue gas drops, the salt residue in the storage tank should be removed in time and refined for separate treatment; the rear section is equipped with an activated carbon adsorption device, and the flue gas enters the bag dust collector through the flue for dust removal and purification treatment. At the same time, an activated carbon injection device is set on the flue to spray the activated carbon into the flue, so that the activated carbon can fully adsorb harmful substances such as heavy metals and dioxins in the flue gas, and enter the bag dust collector together with the flue gas, so that the above-mentioned harmful substances are deposited in the ash hopper at the bottom of the dust collector, and then the ash conveying device is used to transport it to the fly ash storage box and transport it to a unit with hazardous waste treatment qualifications for treatment; after the above-mentioned treatment process, the flue gas meets the emission standards and is sent to the chimney through the induced draft fan and discharged into the atmosphere.

[0124] Optionally, the waste resource processing system further includes a compliance detection and emission device 34, which is suitable for detecting the exhaust gas after purification treatment, so that the exhaust gas can be discharged only after it meets the standards.

[0125] Example 2

[0126] Combine Figure 1 、 Figure 2 As shown, the waste resource processing equipment provided in this embodiment includes:

[0127] The above-mentioned waste resource processing system; the waste resource processing system is a fully enclosed structure;

[0128] Waste resource processing equipment body;

[0129] A control room 40 is electrically or communicatively connected to the waste resource processing system;

[0130] A nitrogen purge replacement system, connected to the waste resource treatment system, is suitable for evacuating the air inside the equipment to shield the conditions for dioxin production and ensure the safety of the entire equipment;

[0131] The material level meter is installed in the furnace body and is suitable for regular detection of material level;

[0132] Pressure gauge and / or pressure sensor, suitable for real-time monitoring of pressure in the system;

[0133] The safety valve is installed on the upper part of the furnace body. When the internal pressure of the equipment body suddenly increases, the safety valve automatically opens to empty and release the pressure;

[0134] The oxygen content tester is installed on the main body of the equipment and is linked to the automatic control to start the nitrogen protection device;

[0135] The temperature gauge and / or temperature sensor is suitable for monitoring the operating temperature inside the system in real time.

[0136] It should be noted that when the equipment is started for the first time or started again after shutdown, press the main start button and the equipment will automatically start the nitrogen purge and replacement system. The system has a self-detection function and can automatically complete nitrogen replacement within 5 minutes. When the oxygen content is controlled to be less than 3% (volume fraction), the nitrogen replacement system automatically sends a prompt signal to keep the entire system closed; enter the start password, and the subsystems of the microwave cracking reactor will automatically detect and prepare for operation. After the various action mechanisms of the equipment are automatically detected to be normal, the subsystems will start; after the start-up material is put into the equipment, turn on the microwave power supply to start heating, and the internal temperature will rise to 250°C. The microwave power frequency used in the equipment is 2450±25MHz, and the single 1.5KW microwave source can adjust the microwave power in time by detecting the temperature and material level to maintain the gradient temperature inside the furnace body. The material to be cracked is added into the furnace body at a uniform speed, and titanium tetrachloride and organic matter begin to evaporate and desorb. When the temperature and time reach the set values, automatic stirring is turned on. When the lower part of the furnace body reaches a certain temperature and the material level reaches the upper limit, the material begins to be discharged. When the material level falls below the set lower limit, the material discharge is stopped. As the titanium tetrachloride and organic matter in the main body evaporate and desorb and the material is discharged by the discharging mechanism, the material level continues to decrease. At this time, the material level is continuously and automatically measured by the material level meter to form a continuous and stable feeding and discharging system. The stability of the material inside the furnace body also ensures the stable operation of the equipment.

[0137] Optionally, a feed port is provided at the top of the waste resource processing equipment body, and a discharge port is provided at the bottom of the waste resource processing equipment body.

[0138] Optionally, the waste resource processing equipment is further provided with a feeding mechanism; the feeding mechanism is suitable for conveying waste containing titanium tetrachloride and organic matter into the interior of the furnace body.

[0139] Optionally, the feeding mechanism is designed in a space capsule style to ensure sealing and ensure safety during feeding.

[0140] Optionally, the waste resource processing equipment is also provided with a pressure gauge, which is suitable for real-time monitoring of the pressure in the system during operation, and controlling the exhaust fan motor speed through the rear-end inverter, so as to ensure that the system always operates under a slight negative pressure; a safety valve is provided on the upper part of the furnace body. If the internal pressure of the main body suddenly increases, the safety valve automatically opens to empty and release the pressure.

[0141] Optionally, the waste resource processing equipment is also provided with an oxygen content tester. When the oxygen content in the system is greater than a set safety value, the alarm is activated and the interlocking automatic control starts the nitrogen protection device to ensure the safety of equipment and personnel.

[0142] Optionally, the waste resource processing equipment is also provided with a plurality of combustible gas detectors. When combustible gas leaks, the detector alarm device is activated, the equipment automatically stops heating, and the automatic exhaust device is activated to ensure the safety of personnel.

[0143] The working process of the waste resource treatment equipment is as follows:

[0144] The waste containing titanium tetrachloride and organic matter is transported to the waste resource treatment equipment, added to the sealed feed box, all equipment power is turned on, and the monitoring instruments and action mechanisms of the equipment are checked to see if they are normal. After confirmation, the microwave low-temperature desorption furnace 11 is turned on, and microwave-absorbing carbon materials (such as activated carbon, bituminous coal, etc.) are added therein as the starting material. Nitrogen is injected into the furnace body from the bottom of the cracking furnace to exhaust the air inside the entire equipment, and then the temperature is gradually raised to 250°C;

[0145] Slowly and uniformly add waste containing titanium tetrachloride and organic matter into the microwave low-temperature desorption furnace 11 to volatilize the titanium tetrachloride and low-boiling-point organic matter. Then, keep the temperature for 30 minutes to ensure that the titanium tetrachloride is completely volatilized. The volatilized gas enters the microwave gas-phase catalytic cracking furnace 13, and the remaining residue enters the microwave cracking furnace 12.

[0146] The microwave cracking furnace 12 maintains a high temperature of over 600°C, and continues to crack the organic matter at a high temperature of over 600°C, cracking it into low-molecular combustible gases. The cracked gases are discharged into the RCO regenerative catalytic combustion furnace 32 for combustion or into the microwave gas-phase catalytic cracking furnace 13 for further cracking. The remaining residue is discharged from the furnace and sent to a qualified enterprise for treatment.

[0147] The titanium tetrachloride and low-boiling-point organic matter entering the microwave gas-phase catalytic cracking furnace 13 are accelerated to decompose under the action of microwave catalysis and the high temperature of 600°C inside, while the titanium tetrachloride remains unchanged. The cracked gas and the incompletely cracked gas enter the secondary high-temperature gas-phase cracking furnace 14;

[0148] The temperature inside the secondary high-temperature gas-phase cracking furnace 14 is maintained at above 800°C. The cracked gas entering this section is kept at a residence time of ≥2 seconds to completely crack the incompletely cracked organic gas. The cracked gas, gaseous titanium tetrachloride, and residual carbon produced after cracking enter the condenser 21 along with the gas.

[0149] The condensation temperature of the condenser 21 is maintained in the range of -5 to 5°C. The titanium tetrachloride is contained within the tank. The condensed titanium tetrachloride adheres to the inside of the tank. This condensation process adsorbs carbon residue, which adheres to the inside of the tank. At this time, the carbon residue and titanium tetrachloride are completely condensed in the tank and discharged regularly. The collected titanium tetrachloride solution containing carbon residue is then subjected to secondary distillation and condensation to obtain a higher-purity titanium tetrachloride solution, which can be recycled internally or sold to a titanium tetrachloride solution manufacturer for further use after purification.

[0150] The gas that does not condense in the condensation section is washed with water and deacidified in the spray tower 31, and then the clean combustible gas enters the RCO regenerative catalytic combustion furnace 32 for combustion. The combusted gas is treated by the exhaust gas purification device 33 and meets the emission standards.

[0151] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A waste resource processing system, characterized in that: include: A microwave low-temperature desorption furnace (11) is suitable for heating waste containing titanium tetrachloride and organic matter at a first temperature under an oxygen-free temperature T1 condition to obtain a first mixed gas and a first solid residue, wherein the value range of T1 is: 150° C.≤T1≤350° C.; The microwave cracking furnace (12) has an input end connected to the output end of the microwave low-temperature desorption furnace (11), and is suitable for heating the first solid residue at a second temperature T2 under an oxygen-free temperature condition to obtain a second mixed gas and a second solid residue, wherein the value range of T2 is: 600°C ≤ T2 ≤ 650°C; The microwave gas-phase catalytic cracking furnace (13) has an input end connected to the output end of the microwave low-temperature desorption furnace (11) and / or the microwave cracking furnace (12), and is suitable for heating the first mixed gas and / or the second mixed gas at a third temperature T3 under an oxygen-free temperature condition to obtain a third mixed gas, wherein the value range of T3 is: 600°C ≤ T3 ≤ 650°C; A secondary high-temperature gas-phase cracking furnace (14), the input end of which is connected to the output end of the microwave gas-phase catalytic cracking furnace (13); adapted to heat the third mixed gas to a fourth temperature under an oxygen-free temperature condition of T4 to obtain a fourth mixed gas, wherein the value range of T4 is: 800°C ≤ T4 ≤ 950°C; The fourth mixed gas is condensed and distilled twice to obtain a pure titanium tetrachloride solution; Also includes: A condenser (21), the input end of which is connected to the output end of the secondary high-temperature gas-phase cracking furnace (14), is suitable for condensing the fourth mixed gas to obtain a titanium tetrachloride solution containing residual carbon and a combustible gas; A secondary distiller (22), the input end of which is connected to the output end of the condenser (21), is suitable for performing secondary distillation on the titanium tetrachloride solution containing residual carbon, removing the residual carbon, and collecting a high-purity titanium tetrachloride solution; It also includes a spray tower (31) connected to the output end of the condenser (21) and suitable for absorbing the gas soluble in water to obtain clean combustible gas; It also includes an RCO regenerative catalytic combustion furnace (32), the input end of which is connected to the output end of the microwave cracking furnace (12) and / or the spray tower (31), and is suitable for completely burning and thoroughly decomposing combustible gases and harmful substances; The microwave cracking furnace (12) is connected to either the RCO regenerative catalytic combustion furnace (32) or the microwave gas-phase catalytic cracking furnace (13); when the second mixed gas enters the RCO regenerative catalytic combustion furnace (32) for combustion, if it is detected that no titanium tetrachloride remains, the microwave cracking furnace (12) is kept connected to the RCO regenerative catalytic combustion furnace (32); when the second mixed gas enters the RCO regenerative catalytic combustion furnace (32) for combustion, if it is detected that there is residual titanium tetrachloride, the microwave cracking furnace (12) is connected to the microwave gas-phase catalytic cracking furnace (13), so that the second mixed gas is transported to the microwave gas-phase catalytic cracking furnace (13) for treatment.

2. The waste resource processing system according to claim 1, characterized in that: Under an anaerobic condition temperature T1, the microwave low-temperature desorption furnace (11) heats the waste containing titanium tetrachloride and organic matter at a first temperature so that the titanium tetrachloride and the organic matter are desorbed from the waste in the form of gas, thereby obtaining a first mixed gas and a first solid residue, wherein the first mixed gas contains titanium tetrachloride gas and organic matter gas.

3. The waste resource processing system according to claim 1, characterized in that: Under the anaerobic temperature condition T2, the microwave cracking furnace (12) heats the first solid residue at a second temperature so that the first solid residue continues to be heated and cracked, and the organic matter continues to volatilize, desorb and / or crack into a second mixed gas, which is a low-molecular combustible gas; and the remaining second solid residue is sent to a qualified unit for treatment.

4. The waste resource processing system according to claim 1, characterized in that: Under the anaerobic temperature condition T3, the microwave gas-phase catalytic cracking furnace (13) heats the first mixed gas and / or the second mixed gas at a third temperature to decompose organic matter to obtain a third mixed gas, wherein the third mixed gas contains titanium tetrachloride gas, combustible gas and incompletely cracked organic matter gas.

5. The waste resource processing system according to claim 1, characterized in that: Under the anaerobic temperature condition T4, the secondary high-temperature gas phase cracking furnace (14) heats the third mixed gas to a fourth temperature so that the organic matter that is not completely cracked in the third mixed gas is further completely cracked to obtain a fourth mixed gas, wherein the fourth mixed gas contains titanium tetrachloride gas and combustible gas.

6. The waste resource processing system according to claim 1, characterized in that: It also includes an exhaust gas purification device (33), the input end of which is connected to the RCO regenerative catalytic combustion furnace (32), and is suitable for performing exhaust gas purification on the post-combustion gas so that the exhaust gas meets the emission standards.

7. A waste resource processing equipment, characterized in that: include: The waste resource treatment system according to any one of claims 1 to 6 above; the waste resource treatment system is a fully enclosed structure; Waste resource processing equipment body; A control room (40) electrically or communicatively connected to the waste resource processing system; A nitrogen purge replacement system, connected to the waste resource treatment system, is suitable for evacuating the air inside the equipment to shield the conditions for dioxin production and ensure the safety of the entire equipment; The material level meter is installed in the furnace body and is suitable for regular detection of material level; Pressure gauge and / or pressure sensor, suitable for real-time monitoring of pressure in the system; The safety valve is installed on the upper part of the furnace body. When the internal pressure of the equipment body suddenly increases, the safety valve automatically opens to empty and release the pressure; The oxygen content tester is installed on the main body of the equipment and is linked to the automatic control to start the nitrogen protection device; The temperature gauge and / or temperature sensor is suitable for real-time monitoring of the operating temperature inside the system.

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