Alkaline solid waste mineralization test device

Abstract

The invention discloses an alkaline solid waste mineralization test device, which comprises a support frame, a reaction kettle, a stirring shaft, a gas inlet pipe and a gas outlet pipe, the reaction kettle is arranged on the support frame, the reaction kettle comprises a kettle cover and a kettle body, the kettle cover detachably covers the kettle body, a discharge pipe is arranged at the bottom of the kettle body, and the gas outlet pipe is arranged on the bottom of the kettle body. The stirring shaft is arranged in the kettle body, stirring blades positioned in the kettle body are arranged on the stirring shaft, the gas inlet pipe is arranged on the reaction kettle and is communicated with the reaction kettle, a first flow meter is arranged on the gas inlet pipe, the gas outlet pipe is arranged on the reaction kettle and is communicated with the reaction kettle, and a second flow meter is arranged on the gas outlet pipe. According to the alkaline solid waste mineralization test device, carbon dioxide is converted into stable carbonate minerals through alkaline solid waste mineralization reaction, CO fixation and emission reduction are achieved, the test device can research the carbon sequestration peak value of mineralization of different alkaline solid wastes, the mineralization process is optimized, and the carbon sequestration capacity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of solid waste mineralization test devices, and in particular to an alkaline solid waste mineralization test device. Background Art

[0002] Alkaline solid waste mineralization is an environmentally friendly carbon dioxide (CO2) fixation technology, which refers to the process of using alkaline solid waste (such as fly ash, steel slag, carbide slag, etc.) generated in industrial production processes to react chemically with CO2 to convert it into stable carbonate minerals. Specifically, alkaline solid waste contains a large amount of alkaline metal elements such as calcium and magnesium, which can undergo mineralization reactions with CO2 to produce carbonates such as calcium carbonate (CaCO3) and magnesium carbonate (MgCO3). This process can not only achieve the fixation and emission reduction of CO2, but also effectively treat industrial solid waste and realize waste resource utilization. However, in the related art, the alkaline solid waste mineralization device pays more attention to the carbon fixation capacity of solid waste, and the carbon fixation peak of alkaline solid waste mineralization has not been studied. Therefore, an alkaline solid waste mineralization test device is needed to solve the above problems. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides an alkaline solid waste mineralization test device.

[0004] The alkaline solid waste mineralization test device of the embodiment of the present invention includes a support frame, a reactor, a stirring shaft, an air inlet pipe and an air outlet pipe, wherein the reactor is arranged on the support frame, the reactor includes a reactor cover and a reactor body, the reactor cover is detachably covered on the reactor body, a discharge pipe is arranged at the bottom of the reactor body, a first valve is arranged on the discharge pipe, and the first valve is used to control the on-off of the discharge pipe, and the reactor is used to configure alkaline solid waste slurry; the stirring shaft is rotatably arranged on the reactor cover and one end extends into the reactor body, and the stirring shaft is provided with a stirring blade located in the reactor body; the air inlet pipe is arranged on the reactor and connected with the reactor, and is used to introduce carbon dioxide into the reactor, and a first flowmeter is arranged on the air inlet pipe, and the first flowmeter is used to detect the flow rate of carbon dioxide in the air inlet pipe; the air outlet pipe is arranged on the reactor and connected with the reactor, and is used to discharge the carbon dioxide in the reactor, and a second flowmeter is arranged on the air outlet pipe, and the second flowmeter is used to detect the flow rate of carbon dioxide in the air outlet pipe.

[0005] In some embodiments, the alkaline solid waste mineralization test device of the embodiment of the present invention includes a gas storage tank, which is used to store carbon dioxide. The air inlet pipe is connected to the gas storage tank. A pressure reducing valve is provided on the air inlet pipe. The pressure reducing valve is located between the gas storage tank and the first flow meter.

[0006] In some embodiments, a second valve is provided on the air intake pipe, and the second valve is used to control the opening and closing of the air intake pipe.

[0007] In some embodiments, a third valve is provided on the air outlet pipe, and the third valve is used to control the opening and closing of the air outlet pipe.

[0008] The alkaline solid waste mineralization test device of the embodiment of the present invention further comprises a pH meter, which is inserted into the kettle cover, and the detection end of the pH meter extends into the kettle body to detect the pH value of the alkaline solid waste slurry in the reactor.

[0009] In some embodiments, the pH meter is detachably mounted on the kettle cover.

[0010] The alkaline solid waste mineralization test device of the embodiment of the present invention further includes a pressure gauge, which is arranged on the kettle cover, and the detection end of the pressure gauge extends into the kettle body, and the pressure gauge is used to detect the pressure in the reactor.

[0011] The alkaline solid waste mineralization test device of the embodiment of the present invention further includes a thermometer, which is arranged on the kettle cover, and the detection end of the thermometer extends into the kettle body, and the thermometer is used to detect the temperature in the reactor.

[0012] The alkaline solid waste mineralization test device of the embodiment of the present invention further includes a collecting device, which is disposed on the support frame and below the discharge pipe, and is used to collect the alkaline solid waste slurry discharged from the reactor.

[0013] The alkaline solid waste mineralization test device of the embodiment of the present invention further includes a motor, which is disposed on the support frame and is transmission-connected to the stirring shaft to drive the stirring shaft to rotate.

[0014] The key components of the alkaline solid waste mineralization test device of the embodiment of the present invention, such as the support frame, reactor, stirring shaft, air inlet pipe and air outlet pipe, together constitute a closed mineralization reaction system. During the test, a certain amount of alkaline solid waste (such as fly ash, steel slag, carbide slag, etc.) produced by industry is mixed with water to form an alkaline solid waste slurry, and then placed in the reactor. Carbon dioxide gas is introduced into the reactor through the air inlet pipe, and the first flowmeter on the air inlet pipe is used to monitor the flow of carbon dioxide in the air inlet pipe to ensure the accuracy of the amount of carbon dioxide introduced into the reactor. The stirring blades on the stirring shaft are stirred in the kettle body to promote the alkaline solid waste to fully contact with carbon dioxide and improve the mineralization efficiency. The reacted carbon dioxide is discharged through the air outlet pipe, and the second flowmeter on the air outlet pipe is used to monitor the discharged carbon dioxide flow. After the reaction is completed, the amount of carbon dioxide consumed by the alkaline solid waste slurry and carbon dioxide mineralization reaction in the reactor is the difference between the first flowmeter and the second flowmeter, thereby obtaining the carbon fixation peak value of the alkaline solid waste.

[0015] Therefore, the alkaline solid waste mineralization test device of the embodiment of the present invention converts carbon dioxide into stable carbonate minerals through an alkaline solid waste mineralization reaction, thereby achieving CO fixation and emission reduction. The test device can study the carbon fixation peaks of different alkaline solid waste mineralizations, which helps to optimize the mineralization process and improve the carbon fixation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an alkaline solid waste mineralization test device according to an embodiment of the present invention.

[0017] Figure 2 It is a partial structural cross-sectional view of an alkaline solid waste mineralization test device according to an embodiment of the present invention.

[0018] Reference numerals:

[0019] 100. Alkaline solid waste mineralization test device; 1. Support frame; 2. Reactor; 201. Reactor cover; 202. Reactor body; 3. Discharge pipe; 4. First valve; 5. Stirring shaft; 6. Stirring blades; 7. Air inlet pipe; 8. First flow meter; 9. Air outlet pipe; 10. Second flow meter; 11. Air storage tank; 12. Pressure reducing valve; 13. Second valve; 14. Third valve; 15. pH meter; 16. Pressure gauge; 17. Thermometer; 18. Collecting device; 19. Motor. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] like Figure 1 and Figure 2As shown, the alkaline solid waste mineralization test device 100 of the embodiment of the present invention includes a support frame 1, a reactor 2, a stirring shaft 5, an air inlet pipe 7 and an air outlet pipe 9. The reactor 2 is arranged on the support frame 1, and the reactor 2 includes a kettle cover 201 and a kettle body 202, and the kettle cover 201 is detachably covered on the kettle body 202. A discharge pipe 3 is provided at the bottom of the kettle body 202, and a first valve 4 is provided on the discharge pipe 3. The first valve 4 is used to control the on and off of the discharge pipe 3, and the reactor 2 is used to configure the alkaline solid waste slurry. The stirring shaft 5 is rotatably arranged on the kettle cover 201 and one end extends into the kettle body 202. The stirring shaft 5 is provided with a stirring blade 6 located in the kettle body 202. The air inlet pipe 7 is arranged on the reactor 2 and is connected to the reactor 2, and is used to introduce carbon dioxide into the reactor 2. A first flowmeter 8 is provided on the air inlet pipe 7, and the first flowmeter 8 is used to detect the flow of carbon dioxide in the air inlet pipe 7. The gas outlet pipe 9 is arranged on the reactor 2 and is connected to the reactor 2 for discharging the carbon dioxide in the reactor 2 . A second flow meter 10 is arranged on the gas outlet pipe 9 for detecting the flow of carbon dioxide in the gas outlet pipe 9 .

[0022] The key components of the alkaline solid waste mineralization test device 100 of the embodiment of the present invention, such as the support frame 1, the reactor 2, the stirring shaft 5, the air inlet pipe 7 and the air outlet pipe 9, together constitute a closed mineralization reaction system. During the test, a certain amount of alkaline solid waste (such as fly ash, steel slag, carbide slag, etc.) produced by industry is mixed with water to form an alkaline solid waste slurry, and then placed in the reactor 2. Carbon dioxide gas is introduced into the reactor 2 through the air inlet pipe 7, and the first flowmeter 8 on the air inlet pipe 7 is used to monitor the flow of carbon dioxide in the air inlet pipe 7 to ensure the accuracy of the amount of carbon dioxide introduced into the reactor 2. The stirring blade 6 on the stirring shaft 5 stirs in the kettle body 202 to promote full contact between the alkaline solid waste and carbon dioxide and improve the mineralization efficiency. The reacted carbon dioxide is discharged through the air outlet pipe 9, and the second flowmeter 10 on the air outlet pipe 9 is used to monitor the discharged carbon dioxide flow.

[0023] After the reaction is completed, the amount of carbon dioxide consumed by the mineralization reaction between the alkaline solid waste slurry and carbon dioxide in the reactor 2 is the difference between the first flow meter 8 and the second flow meter 10, thereby obtaining the carbon fixation peak value of the alkaline solid waste.

[0024] Therefore, the alkaline solid waste mineralization test device 100 of the embodiment of the present invention converts carbon dioxide into stable carbonate minerals through an alkaline solid waste mineralization reaction, thereby achieving CO2 fixation and emission reduction. The test device can study the carbon fixation peaks of different alkaline solid waste mineralizations, which helps to optimize the mineralization process and improve the carbon fixation capacity.

[0025] In some embodiments, the alkaline solid waste mineralization test device 100 of the embodiment of the present invention includes a gas storage tank 11, which is used to store carbon dioxide. The air inlet pipe 7 is connected to the gas storage tank 11, and a pressure reducing valve 12 is provided on the air inlet pipe 7. The pressure reducing valve 12 is located between the gas storage tank 11 and the first flow meter 8.

[0026] The gas tank 11 can store a certain amount of carbon dioxide gas to ensure the stability of the gas supply during the test, which can maintain a continuous and uniform mineralization reaction process. The gas tank 11 can keep the gas at a relatively stable pressure, so that the flow of carbon dioxide entering the reactor 2 is more uniform, avoiding unstable flow due to pressure fluctuations. The setting of the gas tank 11 can also avoid the safety risks that may be caused by directly supplying gas from a high-pressure gas source, reducing the potential dangers caused by sudden changes in pressure.

[0027] The pressure reducing valve 12 is located between the gas storage tank 11 and the first flow meter 8, and is used to adjust the pressure of the carbon dioxide gas from the gas storage tank 11 to the reactor 2. It can ensure that the gas enters the reaction system at an appropriate pressure. By adjusting the pressure reducing valve 12, the flow rate of carbon dioxide entering the reactor 2 can be controlled, which is necessary to maintain the rate and efficiency of the mineralization reaction. The pressure reducing valve 12 can also protect measuring equipment such as flow meters to avoid damage to the equipment due to excessive gas pressure.

[0028] The addition of the gas tank 11 and the pressure reducing valve 12 makes the entire mineralization test process more controllable, ensuring the accuracy and repeatability of the test results. The pressure reducing valve 12 can prevent damage to the device due to excessive gas pressure, while reducing safety hazards during operation. The gas tank 11 and the pressure reducing valve 12 allow the experimenter to adjust the gas pressure and flow rate as needed, thereby optimizing the test conditions and improving the mineralization efficiency.

[0029] Overall, these improvements make the alkaline solid waste mineralization test device 100 more perfect, which not only improves the efficiency and safety of the test, but also helps to obtain more accurate data, thereby promoting the advancement of alkaline solid waste mineralization technology.

[0030] In some embodiments, a second valve 13 is provided on the air intake pipe 7 , and the second valve 13 is used to control the opening and closing of the air intake pipe 7 .

[0031] The second valve 13 can control the on-off of the air inlet pipe 7, so that the operator can open or close the supply of carbon dioxide gas when necessary, thereby starting or stopping the mineralization reaction. The setting of the second valve 13 increases the flexibility of operation, so that the operator can adjust the gas supply status at any time according to the test needs, without having to adjust the pressure reducing valve 12 or the first flowmeter 8 every time. In the event of an emergency or accident, the second valve 13 can be quickly closed to immediately stop the supply of carbon dioxide, which helps to ensure the safety of the test. Combined with the pressure reducing valve 12, the second valve 13 can more finely adjust the flow of carbon dioxide entering the system in order to more accurately control the rate of the mineralization reaction. When the equipment is maintained or parts are replaced, the second valve 13 can be closed to cut off the gas source to avoid equipment damage or safety accidents caused by misoperation. When carbon dioxide is not needed, the second valve 13 can be closed to avoid unnecessary waste of gas and save resources. The second valve 13 makes the test conditions easier to control, which helps to obtain more reliable test data, thereby optimizing the alkaline solid waste mineralization process.

[0032] In some embodiments, a third valve 14 is provided on the air outlet pipe 9 , and the third valve 14 is used to control the opening and closing of the air outlet pipe 9 .

[0033] In an emergency, such as when the pressure in the reactor 2 rises abnormally, the operator can quickly open the third valve 14 to further discharge the gas in the reactor 2 to relieve the pressure and ensure the safety of the test. By controlling the switch of the third valve 14, the pressure in the reactor 2 can be controlled and adjusted to keep the reaction stable. If it is necessary to recover or reuse the discharged carbon dioxide gas, the third valve 14 can cooperate with related equipment to achieve this function. When conducting tests at different stages, it may be necessary to adjust the gas environment in the reactor. The setting of the third valve 14 makes this operation simple and easy. When maintaining or inspecting the equipment, the third valve 14 can be closed to prevent gas leakage and ensure the safety of maintenance work. When performing gas flow and component analysis, the third valve 14 can control the discharge of gas in order to collect accurate data. When multiple tests are carried out continuously, closing the third valve 14 can prevent gas cross contamination between different tests.

[0034] In some embodiments, the alkaline solid waste mineralization test device 100 of the embodiment of the present invention also includes a pH meter 15, which is inserted into the kettle cover 201, and the detection end of the pH meter 15 extends into the kettle body 202 to detect the pH value of the alkaline solid waste slurry in the reactor 2.

[0035] The detection end of the pH meter 15 extends into the kettle body 202, and can monitor the pH value changes of the alkaline solid waste slurry in real time, which is crucial for controlling the mineralization reaction conditions. The pH value is one of the key factors affecting the efficiency of the alkaline solid waste mineralization reaction. By monitoring the pH value in real time, the reaction conditions can be adjusted in time, such as adjusting the flow rate of carbon dioxide, stirring speed, etc., to optimize the mineralization effect. The data provided by the pH meter 15 can help researchers accurately understand the changing trend of the pH value during the mineralization process, which helps to analyze the dynamic process of the mineralization reaction. By monitoring the changes in the pH value, the reaction rate can be better controlled to keep it in the optimal state, thereby improving the carbon fixation efficiency and carbon fixation amount. Abnormal changes in the pH value may be a signal of a runaway reaction, and timely monitoring can help operators prevent possible unexpected situations, such as over-acidification or alkalization. The collected pH data can be used for subsequent data analysis to help understand the mechanism of the mineralization reaction and guide further process optimization. The control of the pH value has a direct impact on the quality of the final product. The pH meter 15 can ensure that the product quality meets the expected standards.

[0036] In some embodiments, the pH meter 15 is detachably mounted on the kettle cover 201 .

[0037] The detachable design allows the pH meter 15 to be maintained and calibrated without disassembling the entire kettle. This greatly simplifies the operation process and saves time and labor costs. If there is a problem with the sensor or circuit of the pH meter 15, it can be quickly replaced without recalibrating or adjusting the entire system, thereby improving the continuity and efficiency of the experiment or production process. Since the maintenance and replacement operations are simple and quick, equipment downtime can be minimized, which is especially important for production processes that need to run continuously. Different types or ranges of pH meters 15 may be required for different experimental or production needs. The detachable design allows pH meters 15 of different specifications to be easily replaced, providing greater flexibility and adaptability. Disassembling the pH meter 15 can effectively prevent cross-contamination between different experiments or between different solutions, because the sensor part can be thoroughly cleaned and replaced. Frequent maintenance and calibration can ensure the accuracy and reliability of the pH meter 15, thereby extending its service life.

[0038] In some embodiments, the alkaline solid waste mineralization test device 100 of the embodiment of the present invention further includes a pressure gauge 16 , which is disposed on the kettle cover 201 , and the detection end of the pressure gauge 16 extends into the kettle body 202 , and the pressure gauge 16 is used to detect the pressure in the reactor 2 .

[0039] The pressure gauge 16 can monitor the pressure in the reactor 2 in real time, which is very important for controlling the reaction conditions and ensuring the safety of operation. In the reaction, the change of pressure may affect the rate and of the reaction, so timely pressure monitoring is very necessary. If the pressure rises abnormally during the reaction, the pressure gauge 16 can issue an alarm in time, prompting the operator to take measures to reduce the pressure, prevent the equipment from being damaged by overpressure or even causing a safety accident. Through the pressure data, the reaction process can be controlled more accurately. For example, in a reaction where a constant pressure needs to be maintained, the pressure gauge 16 provides feedback information to adjust the material flow entering or discharging the reactor 2 to maintain pressure stability. Different mineralization tests may require different pressure conditions. The existence of the pressure gauge 16 enables the test device to adapt to more process requirements and expands its scope of application. The design of the pressure gauge 16 should take into account the convenience of maintenance and calibration. For example, if the pressure gauge 16 needs to be calibrated or replaced, its detachable characteristics will make these operations more convenient.

[0040] In some embodiments, the alkaline solid waste mineralization test device 100 of the embodiment of the present invention further includes a thermometer 17 , which is disposed on the kettle cover 201 , and the detection end of the thermometer 17 extends into the kettle body 202 , and the thermometer 17 is used to detect the temperature in the reactor 2 .

[0041] Thermometer 17 can accurately monitor the temperature in reactor 2, which is very important for controlling reaction conditions and ensuring operational safety. In chemical reactions, changes in temperature may affect the rate of reaction and product quality. If the temperature rises abnormally during the reaction, thermometer 17 can promptly sound an alarm, prompting the operator to take measures to reduce the temperature, prevent the equipment from being damaged by overheating or even causing safety accidents. Through temperature data, the reaction process can be more accurately controlled. Thermometer 17 is usually connected to a data acquisition system and can record temperature changes over time. The presence of thermometer 17 enables the test device to adapt to more process requirements and expands its scope of application.

[0042] In some embodiments, the alkaline solid waste mineralization test device 100 of the embodiment of the present invention further includes a collecting device 18 , which is disposed on the support frame 1 and below the discharge pipe 3 , and is used to collect the alkaline solid waste slurry discharged from the reactor 2 .

[0043] The collecting device 18 is located on the support frame 1 and below the discharge pipe 3, ensuring that the slurry can be collected smoothly without causing pollution or inconvenience on site. The collecting device 18 can collect the discharged alkaline solid waste slurry to facilitate subsequent solid waste treatment, resource recovery or waste disposal. The collecting device 18 can prevent the alkaline solid waste slurry from being directly discharged into the environment, reducing pollution to the environment. The collecting device 18 can reduce the exposure of hazardous substances at the work site and improve the safety of operators. The collected alkaline solid waste slurry may contain recyclable resources or hazardous substances. Through proper treatment, resource recovery and harmlessness of hazardous substances can be achieved. The design of the collecting device 18 should take into account the convenience of slurry transportation. For example, the collecting device 18 can be connected to a transport vehicle through a connecting pipe.

[0044] In some embodiments, the alkaline solid waste mineralization test device 100 of the embodiment of the present invention further includes a motor 19 , which is disposed on the support frame 1 , and the motor 19 is transmission-connected to the stirring shaft 5 to drive the stirring shaft 5 to rotate.

[0045] As a power source, the motor 19 can drive the stirring shaft 5 to rotate, achieve stirring and mixing of the solid waste slurry, and ensure the progress of the mineralization reaction. Through the transmission of the motor 19, the rotation of the stirring shaft 5 can drive the stirring blade 6 to fully stir the alkaline solid waste slurry and improve the mineralization efficiency. The motor 19 can control the stirring speed and stirring time. The process of the mineralization reaction can be accurately controlled by the speed and running time of the motor 19. The connection design of the motor 19 and the stirring shaft 5 needs to ensure safety and reliability to avoid failures or accidents during the stirring process.

[0046] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. An alkaline solid waste mineralization test device, characterized in that: include: Support frame; A reactor, the reactor is arranged on the support frame, the reactor comprises a reactor cover and a reactor body, the reactor cover is detachably mounted on the reactor body, a discharge pipe is arranged at the bottom of the reactor body, a first valve is arranged on the discharge pipe, and the first valve is used to control the on and off of the discharge pipe, and the reactor is used to prepare alkaline solid waste slurry; A stirring shaft, the stirring shaft is rotatably arranged on the kettle cover and one end of the stirring shaft extends into the kettle body, and the stirring shaft is provided with a stirring blade located in the kettle body; an air intake pipe, the air intake pipe being arranged on the reactor and communicating with the reactor, and being used for introducing carbon dioxide into the reactor, the air intake pipe being provided with a first flow meter, and the first flow meter being used for detecting the flow of carbon dioxide in the air intake pipe; An air outlet pipe is arranged on the reactor and communicated with the reactor, and is used to discharge the carbon dioxide in the reactor. A second flow meter is arranged on the air outlet pipe, and the second flow meter is used to detect the flow of carbon dioxide in the air outlet pipe.

2. The alkaline solid waste mineralization test device according to claim 1, characterized in that: It comprises a gas storage tank, the gas storage tank is used to store carbon dioxide, the air intake pipe is connected with the gas storage tank, a pressure reducing valve is arranged on the air intake pipe, and the pressure reducing valve is located between the gas storage tank and the first flow meter.

3. The alkaline solid waste mineralization test device according to claim 2, characterized in that: The air intake pipe is provided with a second valve, and the second valve is used to control the opening and closing of the air intake pipe.

4. The alkaline solid waste mineralization test device according to claim 1, characterized in that: The air outlet pipe is provided with a third valve, and the third valve is used to control the opening and closing of the air outlet pipe.

5. The alkaline solid waste mineralization test device according to claim 1, characterized in that: It also includes a pH meter, which is inserted into the kettle cover, and the detection end of the pH meter extends into the kettle body to detect the pH value of the alkaline solid waste slurry in the reactor.

6. The alkaline solid waste mineralization test device according to claim 5, characterized in that: The pH meter is detachably inserted into the kettle cover.

7. The alkaline solid waste mineralization test device according to claim 1, characterized in that: It also includes a pressure gauge, which is arranged on the kettle cover, and a detection end of the pressure gauge extends into the kettle body, and the pressure gauge is used to detect the pressure in the reactor.

8. The alkaline solid waste mineralization test device according to claim 1, characterized in that: It also includes a thermometer, which is arranged on the kettle cover, and a detection end of the thermometer extends into the kettle body, and the thermometer is used to detect the temperature in the reactor.

9. The alkaline solid waste mineralization test device according to claim 1, characterized in that: It also includes a collecting device, which is arranged on the supporting frame and located below the discharge pipe, and is used to collect the alkaline solid waste slurry discharged from the reaction kettle.

10. The alkaline solid waste mineralization test device according to claim 1, characterized in that: It also includes a motor, which is arranged on the support frame and is transmission-connected to the stirring shaft to drive the stirring shaft to rotate.

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