Coal-based solid waste mineralization CO2 and detection device for laboratory

Abstract

The invention relates to the technical field of coal-based solid waste mineralization CO2 reaction devices, and discloses a coal-based solid waste mineralization CO2 and detection device for a laboratory. The mineralization reaction cavity ascends and descends above the base through a linkage telescopic oil cylinder; the stirring gas supply system comprises stirring blades rotationally connected into the mineralization reaction cavity, and external CO2 is conveyed into the mineralization reaction cavity through the stirring blades; the adjusting control system comprises a temperature adjusting part, a PH adjusting part and a pressure adjusting part which are arranged on the mineralization reaction cavity and is used for adjusting and controlling the temperature, the PH value and the pressure in the mineralization reaction cavity; the monitoring control system is arranged at the top end of the base, and when the linkage telescopic oil cylinder drives the mineralization reaction cavity to descend, the weight of the mineralization reaction cavity is monitored. According to the method, regulation and control of the mineralization rate and degree of coal-based solid waste mineralization CO2 and detection of the mineralization effect are achieved, and the method has wide application prospects in the aspects of coal-based solid waste mineralization CO2 technology development and laboratory mineralization CO2 and detection.

Description

Technical Field

[0001] The present invention relates to coal-based solid waste mineralization CO 2 The technical field of reaction device is particularly related to a laboratory coal-based solid waste mineralization CO 2 and detection devices. Background Art

[0002] With the CO 2 In-depth research on emission reduction has found that 2 Simply capturing and storing CO2 cannot fundamentally solve the problem. 2 The most important way to reduce emissions is to utilize them as resources, and mineral carbonation to fix CO2 has attracted much attention due to its low cost, large scale, high reaction activity, and long-term stability. Given that slag such as coal-based solid waste is rich in calcium, magnesium and alkaline substances, these substances can be used to fix CO 2 The reaction generates stable carbonate minerals, thus achieving CO 2 Permanent storage of coal-based solid waste has low environmental risk. However, the existing equipment has low mineralization efficiency and it is difficult to accurately control and detect the degree and effect of mineralization, which cannot meet the needs of coal-based solid waste mineralization CO 2 The need for technology development.

[0003] Therefore, there is an urgent need for a laboratory method to mineralize CO using coal-based solid waste. 2 and detection device, used to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a laboratory coal-based solid waste mineralization CO 2 And detection device, to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following scheme: The present invention provides a laboratory coal-based solid waste mineralization CO 2 and detection device, including:

[0006] The base has a linkage telescopic oil cylinder fixedly connected to the top;

[0007] The mineralization reaction chamber is raised and lowered above the base by the linkage telescopic oil cylinder;

[0008] A stirring and gas supply system, comprising a stirring blade rotatably connected to the mineralization reaction chamber, through which external CO2 is transported into the mineralization reaction chamber;

[0009] A regulating control system, comprising a temperature regulating member, a pH regulating member and a pressure regulating member arranged on the mineralization reaction chamber, wherein the temperature regulating member is used to regulate and control the temperature in the mineralization reaction chamber, the pH regulating member is used to regulate and control the pH value in the mineralization reaction chamber, and the pressure regulating member is used to regulate the pressure in the mineralization reaction chamber;

[0010] The monitoring and control system is arranged on the top of the base and is configured to monitor the weight of the mineralization reaction chamber when the linkage telescopic oil cylinder drives the mineralization reaction chamber to descend onto the monitoring and control system.

[0011] Preferably, the mineralization reaction chamber includes an outer chamber, a chamber cover is detachably connected to the top of the outer chamber by bolts, an inner chamber is arranged in the outer chamber, a temperature control layer is arranged between the outer chamber and the inner chamber, and the temperature control layer is filled with heat transfer medium water.

[0012] Preferably, the temperature regulating member comprises a temperature regulating valve and a heater fixedly connected to the outer cavity.

[0013] Preferably, the pH adjusting member comprises a pH sensor fixedly connected to the stirring blade, the cavity cover is provided with a material adding port, and the material adding port is provided with two valves.

[0014] Preferably, the pressure regulating member comprises a gas pressure sensor and a pressure relief valve fixedly connected to the cavity cover.

[0015] Preferably, the stirring gas supply system further comprises a motor, the motor is fixedly connected to the top of the chamber cover, the stirring blade is rotatably connected to the top of the inner part of the chamber cover, a hollow shaft is arranged in the motor, the stirring blade is fixedly connected to the hollow shaft, one end of the hollow shaft extends out of the motor and is connected to the external CO 2 The hollow shaft is connected, and an air intake regulating valve is arranged on the hollow shaft.

[0016] Preferably, the monitoring and control system includes a weight sensor fixedly connected to the base.

[0017] Preferably, a water tank is fixedly connected to the bottom end of the cavity cover, and a hole plug is provided at the bottom end of the water tank.

[0018] Preferably, a sealing ring is provided between the cavity cover and the outer cavity, the sealing ring is fixedly connected to the cavity cover, and a vacuum pump is provided on the cavity cover.

[0019] Preferably, a plurality of air outlet holes are provided on the stirring blade.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] The present invention provides a laboratory coal-based solid waste mineralization CO2 and detection device, which is used to adjust and control the temperature in the mineralization reaction chamber through a temperature adjustment member, adjust and control the pH value in the mineralization reaction chamber through a pH adjustment member, and adjust and control the pressure in the mineralization reaction chamber through a pressure adjustment member. The coal-based solid waste mineralization CO2 is detected by changing the temperature, pressure, pH and other conditions inside the mineralization chamber. 2 The mineralization rate and degree are regulated by setting up a monitoring and control system to monitor the mineralization of coal-based solid waste CO 2 The mineralization effect is tested to achieve adsorption and mineralization of coal-based solid waste 2 The present invention realizes the quantitative characterization of coal-based solid waste mineralization CO 2 Regulation of mineralization rate and degree, and mineralization of CO2 from coal-based solid waste 2 Detection of mineralization effect, in the mineralization of coal-based solid waste CO 2 Technology development and laboratory mineralization of CO 2 It has broad application prospects in the detection and testing fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0023] Figure 1 It is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 2 It is a front view of the overall structure of the present invention;

[0025] Figure 3 A top view of the overall structure of the present invention;

[0026] Among them: 1. Cavity cover; 2. Outer cavity; 3. Temperature control layer; 4. Inner cavity; 5. Sealing ring; 6. Bolts; 7. Motor; 8. Stirring blades; 9. Hollow shaft; 10. Air outlet; 11. Temperature regulating valve; 12. Heater; 13. PH sensor; 14. Material adding port; 15. Air inlet regulating valve; 16. Pressure sensor; 17. Pressure relief valve; 18. Base; 19. Weight sensor; 20. Linked telescopic cylinder; 21. Valve; 22. Vacuum pump; 23. Sink; 24. Hole plug. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-Figure 3 The present invention provides a laboratory coal-based solid waste mineralization CO 2 and detection device, including:

[0030] The base 18 has a top fixedly connected linkage telescopic oil cylinder 20;

[0031] The mineralization reaction chamber is raised and lowered above the base 18 by means of a linkage telescopic oil cylinder 20;

[0032] The stirring gas supply system includes a stirring blade 8 which is rotatably connected to the mineralization reaction chamber, and the external CO2 is transported into the mineralization reaction chamber through the stirring blade 8;

[0033] A regulating control system, comprising a temperature regulating member, a pH regulating member and a pressure regulating member arranged on the mineralization reaction chamber, wherein the temperature regulating member is used to regulate and control the temperature in the mineralization reaction chamber, the pH regulating member is used to regulate and control the pH value in the mineralization reaction chamber, and the pressure regulating member is used to regulate the pressure in the mineralization reaction chamber;

[0034] The monitoring and control system is disposed on the top of the base 18 and is configured to monitor the weight of the mineralization reaction chamber when the linkage telescopic oil cylinder 20 drives the mineralization reaction chamber to descend onto the monitoring and control system.

[0035] A further optimized solution is that the mineralization reaction chamber includes an outer chamber 2, a chamber cover 1 is detachably connected to the top of the outer chamber 2 by bolts 6, an inner chamber 4 is arranged in the outer chamber 2, a temperature control layer 3 is arranged between the outer chamber 2 and the inner chamber 4, and the temperature control layer 3 is filled with heat transfer medium water.

[0036] According to a further optimized solution, the temperature regulating member includes a temperature regulating valve 11 and a heater 12 fixedly connected to the outer chamber 2 .

[0037] In one embodiment of the present invention, referring to Figure 1 The temperature inside the inner cavity 4 is adjusted by the temperature regulating valve 11 and the heater 12.

[0038] According to a further optimized solution, the pH adjusting member includes a pH sensor 13 fixedly connected to the stirring blade 8 , a material adding port 14 is provided on the chamber cover 1 , and two valves 21 are provided on the material adding port 14 .

[0039] In one embodiment of the present invention, referring to Figure 1 The pH value inside the inner cavity 4 is monitored by the pH sensor 13, and the material adding port 14 is used to add materials. The two valves 21 can achieve the stability of the pressure in the inner cavity 4 during the material adding process.

[0040] According to a further optimized solution, the pressure regulating member includes a gas pressure sensor 16 and a pressure relief valve 17 fixedly connected to the chamber cover 1 .

[0041] In one embodiment of the present invention, referring to Figure 1 The pressure inside the inner cavity 4 is monitored by a pressure sensor 16 , and the pressure inside the inner cavity 4 is relieved by a pressure relief valve 17 .

[0042] Further optimization scheme, the stirring gas supply system also includes a motor 7, the motor 7 is fixedly connected to the top of the chamber cover 1, the stirring blade 8 is rotatably connected to the top of the chamber cover 1, a hollow shaft 9 is arranged in the motor 7, the stirring blade 8 is fixedly connected to the hollow shaft 9, one end of the hollow shaft 9 extends out of the motor 7 and is connected to the external CO 2 The hollow shaft 9 is connected, and an air intake regulating valve 15 is provided on the hollow shaft 9.

[0043] In one embodiment of the present invention, referring to Figure 1 , by adjusting the air intake regulating valve 15 to control the mineralization CO 2 Amount, CO 2 The inner chamber 4 is entered through the hollow shaft 9 on the electric motor 7 .

[0044] According to a further optimized solution, the monitoring and control system includes a weight sensor 19 fixedly connected to the base 18 .

[0045] In one embodiment of the present invention, referring to Figure 1 , Figure 2 The bottom of the linkage telescopic oil cylinder 20 is fixed on the base 18, and the upper end is hinged to the outer cavity 2 of the mineralization reaction chamber. When weighing, the linkage telescopic oil cylinder 20 contracts, and after the mineralization reaction chamber drops to the upper surface of the weight sensor 19, the upper end of the linkage telescopic oil cylinder 20 is separated from the outer cavity 2 of the mineralization reaction chamber. By monitoring the mass change of the entire cavity before and after mineralization, the mineralization CO adsorption of coal-based solid waste is determined. 2 effect.

[0046] According to a further optimized solution, a water tank 23 is fixedly connected to the bottom end of the cavity cover 1 , and a hole plug 24 is provided at the bottom end of the water tank 23 .

[0047] In one embodiment of the present invention, referring to Figure 1 When the pressure in the water tank 23 is higher than the pressure in the inner cavity 4, the hole plug 24 will fall off, and the water tank 23 can avoid the pressure change in the inner cavity 4 caused by water injection from the outside.

[0048] According to a further optimized solution, a sealing ring 5 is provided between the chamber cover 1 and the outer chamber 2 , the sealing ring 5 is fixedly connected to the chamber cover 1 , and a vacuum pump 22 is provided on the chamber cover 1 .

[0049] In one embodiment of the present invention, referring to Figure 1 The sealing ring 5 is provided to ensure the sealing of the chamber cover 1 after buckling, and the vacuum pump 22 is provided to remove the air inside the chamber after the chamber cover 1 and the outer chamber 2 are closed, which can ensure the CO 2 Purity,

[0050] According to a further optimized solution, a plurality of air outlet holes 10 are provided on the stirring blade 8 .

[0051] In one embodiment of the present invention, referring to Figure 1 , the external CO is discharged through the outlet 10 2 Delivered to the inner cavity 4.

[0052] The present invention provides a laboratory coal-based solid waste mineralization CO 2 When in use, the linkage telescopic oil cylinder 20 is raised to lift the mineralization reaction chamber, the bolt 6 is unscrewed, the chamber cover 1 is opened, the configured coal-based solid waste, gelling agent and other materials (mass m1) are placed in the inner chamber 4, the required water volume (mass m2) is calculated according to the concentration, and it is stored in the water tank 23, the stirring blade 8 is installed on the chamber cover 1, the chamber cover 1 and the outer chamber 2 are closed, the bolt 6 is screwed, the vacuum pump 22 is turned on to remove the air in the chamber, the hole plug 24 falls off, and the water is mixed with the coal-based solid waste, gelling agent and other materials, and the air intake regulating valve 15 is opened to press CO 2 , so that the pressure P1 in the cavity is higher than the atmospheric pressure, the linkage telescopic cylinder 20 is lowered, the overall mass M1 is measured by the weight sensor 19, and after the linkage telescopic cylinder 20 is raised, the motor 7 is turned on to drive the stirring blade 8 to mix the coal-based solid waste and other materials, and at the same time, CO is pressed into the air through the air intake regulating valve 15. 2 Change the pressure during mineralization, adjust the mineralization temperature through the temperature regulating valve 11 and the heater 12, add acid and alkali materials through the material adding port 14 to change the pH of the slurry, open the pressure relief valve 17 to exhaust when the mineralization is completed, close the pressure relief valve 17 when the pressure in the chamber is equal to P1, lower the linkage telescopic cylinder 20 again, and measure the overall mass M2 through the weight sensor 19, then the slurry adsorbs the mineralized CO 2 The mass of the slurry is (M2-M1), and the slurry adsorbs the mineralized CO 2 The efficiency is (M2-M1) / (m1+m2).

[0053] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A laboratory coal-based solid waste mineralization CO2 and detection device, characterized in that: include: A base (18) having a top end fixedly connected with a linkage telescopic oil cylinder (20); The mineralization reaction chamber is lifted and lowered above the base (18) by the linkage telescopic oil cylinder (20); A stirring and gas supply system, comprising a stirring blade (8) rotatably connected to the mineralization reaction chamber, and external CO2 is transported into the mineralization reaction chamber through the stirring blade (8); A regulating control system, comprising a temperature regulating member, a pH regulating member and a pressure regulating member arranged on the mineralization reaction chamber, wherein the temperature regulating member is used to regulate and control the temperature in the mineralization reaction chamber, the pH regulating member is used to regulate and control the pH value in the mineralization reaction chamber, and the pressure regulating member is used to regulate the pressure in the mineralization reaction chamber; A monitoring and control system is arranged on the top of the base (18) and is configured to monitor the weight of the mineralization reaction chamber when the linkage telescopic oil cylinder (20) drives the mineralization reaction chamber to descend onto the monitoring and control system.

2. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 1, characterized in that: The mineralization reaction chamber comprises an outer chamber (2), the top of the outer chamber (2) is detachably connected to a chamber cover (1) via bolts (6), an inner chamber (4) is arranged in the outer chamber (2), a temperature control layer (3) is arranged between the outer chamber (2) and the inner chamber (4), and the temperature control layer (3) is filled with heat transfer medium water.

3. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 2, characterized in that: The temperature regulating component comprises a temperature regulating valve (11) and a heater (12) fixedly connected to the outer chamber (2).

4. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 2, characterized in that: The pH adjusting component comprises a pH sensor (13) fixedly connected to the stirring blade (8); the chamber cover (1) is provided with a material adding port (14); and the material adding port (14) is provided with two valves (21).

5. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 2, characterized in that: The pressure regulating component comprises a gas pressure sensor (16) and a pressure relief valve (17) fixedly connected to the chamber cover (1).

6. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 5, characterized in that: The stirring and air supply system also includes an electric motor (7), the electric motor (7) is fixedly connected to the top of the chamber cover (1), the stirring blade (8) is rotatably connected to the top of the chamber cover (1), a hollow shaft (9) is arranged inside the electric motor (7), the stirring blade (8) is fixedly connected to the hollow shaft (9), one end of the hollow shaft (9) extends out of the electric motor (7) to communicate with the external CO2, and an air intake regulating valve (15) is arranged on the hollow shaft (9).

7. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 1, characterized in that: The monitoring and control system comprises a weight sensor (19) fixedly connected to the base (18).

8. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 2, characterized in that: The bottom end of the cavity cover (1) is fixedly connected to a water tank (23), and the bottom end of the water tank (23) is provided with a hole plug (24).

9. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 2, characterized in that: A sealing ring (5) is provided between the chamber cover (1) and the outer chamber (2); the sealing ring (5) is fixedly connected to the chamber cover (1); and a vacuum pump (22) is provided on the chamber cover (1).

10. A laboratory coal-based solid waste mineralized CO2 and detection device according to claim 1, characterized in that: The stirring blade (8) is provided with a plurality of air outlet holes (10).

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