Bidirectional switching closed maintenance carbonization device

Abstract

The invention discloses a bidirectional switching closed maintenance carbonization device, and relates to the technical field of industrial waste utilization. The green brick cabin comprises a cabin body, the cabin body comprises a vertical type cabin body and a horizontal type cabin body, a plurality of containing rooms are arranged in the cabin body, the adjacent containing rooms are communicated to form airflow channels, and a plurality of green brick bearing platforms are arranged in each containing room. A first inlet and outlet guide plate, a first circulating guide plate, a second circulating guide plate and a second inlet and outlet guide plate are arranged on the cabin body. A drying and carbonizing system for drying green bricks and absorbing CO2 in flue gas is formed through mutual cooperation of the gas pipelines and the cabin bodies, inflow and outflow of the flue gas are controlled through the pipelines and the valves, work can be conducted under common cooperation of the multiple cabin bodies, purification of CO2 in the flue gas is achieved, meanwhile, the material hardness of solid waste obtained after carbon absorption is increased, and the carbon absorption effect of the solid waste is improved. And the material has certain mechanical properties, can be used as a building material, and has a dual effect of treating wastes with wastes.

Description

Technical Field

[0001] This invention relates to the field of industrial waste utilization technology, specifically to a bidirectional switching closed-loop curing and carbonization device. Background Technology

[0002] CO2 contributes to global warming and threatens human survival. To reduce CO2 levels, we can focus on two aspects: reducing CO2 emissions and increasing CO2 absorption. Increasing CO2 absorption can be achieved by increasing carbon sinks such as forests and by enhancing carbon capture and storage.

[0003] Smelting 1 ton of crude steel produces approximately 1.8 tons of CO2 and 15 tons of steel slag. Steel slag is an alkaline industrial solid waste generated during the steelmaking process. The chemical composition of steel slag is complex and contains a large amount of f-CaO and f-MgO, which cause poor stability of steel slag. Therefore, the treatment of steel slag is subject to certain restrictions.

[0004] The main chemical components of steel slag are oxides of calcium, magnesium, silicon, iron, aluminum, and manganese. One way to increase the application of carbon capture and storage technology is to capture and solidify CO2 using solid waste containing calcium and magnesium. Therefore, this method can not only effectively treat steel slag solid waste, but also increase the absorption of CO2. In existing technologies, CO2 absorption is either achieved through filters or by using plants and soil. The former is costly and requires repeated filter replacements, while the latter is slow and requires a large area of ​​land, resulting in low efficiency. Therefore, this application proposes to first turn solid waste containing calcium and magnesium into brick blanks, and then place them in an environment filled with CO2 gas for curing. This achieves a low-cost and high-efficiency CO2 absorption effect for steel slag treatment. Therefore, a bidirectional switching closed curing carbonization device is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the limitations imposed on the treatment of steel slag due to its complex chemical composition and the presence of numerous f-CaO and f-MgO substances. Furthermore, existing technologies for CO2 absorption either employ filters or methods involving plants and soil capture. The former is costly and requires frequent filter replacements, while the latter is slow, requires large land areas, and is inefficient. This invention provides a bidirectional switching closed-loop carbonization and curing device.

[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0007] A bidirectional switching closed-loop curing carbonization device includes a chamber body, which includes vertical and horizontal types. Several accommodating chambers are arranged inside the chamber body, and adjacent accommodating chambers are connected to form an airflow channel. Several brick support platforms are arranged in each accommodating chamber. A first inlet / outlet guide plate, a first circulation guide plate, a second circulation guide plate, and a second inlet / outlet guide plate are arranged on the chamber body.

[0008] Furthermore, each brick support platform adopts a hollow structure.

[0009] Furthermore, the cabin body is externally connected to several pipes, and each pipe is equipped with at least one electric butterfly valve.

[0010] Furthermore, both the first and second inlet / outlet guide plates are connected to flue gas inlets and outlets, and temperature and pressure sensors are installed on the pipes near the flue gas inlets and outlets.

[0011] Furthermore, one end of the pipe is connected to an exhaust fan, and the other end of the pipe is connected to an intake fan, with an axial flow fan installed on one of the pipes.

[0012] Furthermore, a drainage channel is connected to the bottom of the cabin body.

[0013] Furthermore, each containment chamber is equipped with a water mist nozzle, which is connected to a water pipe. The water pipe is connected to a nozzle section, and the nozzle section is externally connected to a water supply device.

[0014] Furthermore, each containment chamber is equipped with a humidity sensor, which is associated with a water mist nozzle.

[0015] Furthermore, a carbonized hatch is provided on one side of the cabin body.

[0016] Furthermore, the cabin body is provided with several observation holes.

[0017] The beneficial effects of this invention are as follows: This invention forms a drying and carbonization system for drying brick blanks and absorbing CO2 in flue gas through the cooperation of gas pipelines and the main body of the chamber. The inflow and outflow of flue gas are controlled by pipelines and valves. Moreover, it can work in cooperation with multiple main bodies of the chamber to purify CO2 in the flue gas. At the same time, the material hardness of the solid waste after carbon absorption increases, and it has certain mechanical properties that can be used as building materials, thus achieving the dual effect of treating waste with waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the flue gas circulation system of the present invention;

[0019] Figure 2 This is a front view structural diagram of the present invention;

[0020] Figure 3 This is a side view of the structure of the present invention;

[0021] Figure 4 This is a top view of the structure of the present invention.

[0022] Reference numerals: 1. Cabin body; 1a0. Pipeline; 1a1. First inlet / outlet guide plate; 1a2. First circulation guide plate; 1a3. Second circulation guide plate; 1a4. Second inlet / outlet guide plate; 1b. Drainage channel; 1c. Observation hole; 1d. Water mist nozzle; 1e. Humidity sensor; 1f. Carbonized cabin door; 1g. Nozzle section; 1h. Flue gas inlet / outlet; 1i. Containment chamber; 2. Flue gas exhaust fan; 3. Flue gas inlet fan; 4. Axial flow fan; 5a-5j. Electric butterfly valve; 6. Temperature sensor; 7. Pressure sensor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0027] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0028] A bidirectional switching closed-loop curing carbonization device includes a chamber body 1, which can be vertical or horizontal. The chamber body 1 contains several accommodating chambers 1i, which are connected to form airflow channels. Each accommodating chamber 1i contains several brick support platforms. The chamber body 1 is equipped with a first inlet / outlet guide plate 1a1, a first circulation guide plate 1a2, a second circulation guide plate 1a3, and a second inlet / outlet guide plate 1a4. The chamber body 1 can adopt a combination structure of vertical or horizontal to meet the application needs of different scenarios.

[0029] It should be noted that this device can effectively provide a reaction device for solidifying CO2 gas from solid waste containing calcium and magnesium, thereby achieving carbon emission reduction. The brick blanks are composed of industrial waste containing calcium and magnesium. Using industrial waste containing calcium and magnesium as carbon absorbent material mainly imitates the natural process of CO2 absorption. After carbonation reaction, stable carbonates are obtained to store CO2 for a long time, as shown in the formula: MO(s) + CO2 → MCO3(s) + Q (M includes Ca, Mg, etc.). This method can not only permanently and stably fix carbon dioxide, but also has a sufficient source of raw materials.

[0030] Each brick support platform adopts a hollow structure. Each accommodating chamber 1i is equipped with multiple layers of brick support platforms for placing bricks. Pre-made bricks can be placed on the brick support platforms inside the chamber body 1. There is a certain distance between the brick support platforms. Each layer of brick support platform adopts a hollow structure at the bottom, so that the flue gas can contact the bricks from both the top and bottom after entering, achieving efficient ventilation from both the top and bottom, increasing the contact area, improving the reaction efficiency, and making the reaction more complete.

[0031] The main body 1 is connected to several pipes 1a0, and each pipe 1a0 is equipped with at least one electric butterfly valve 5a to 5j.

[0032] like Figure 1 As shown, the device includes multiple chambers 1 connected together by a series of pipes 1a0 and electric butterfly valves 5a-5j. The chambers 1i within the chambers 1 form an airflow channel. The electric valves can switch the airflow direction of the channel formed by the chambers 1, effectively controlling the drying speed of the object to be cured. The chambers 1i can accommodate materials of various shapes. By adding flue gas input or output pipes 1a0 and adjusting the flue gas flow direction by controlling the electric butterfly valves 5a-5j, the entire device can operate continuously in a cycle, forming a complete drying and carbonization device. In addition, the brick blanks are obtained through the treatment of industrial waste. Through the invention of this device, industrial solid waste can continuously absorb CO2 from the flue gas, achieving the purification of CO2 gas in the flue gas. At the same time, the hardness of the brick blanks after carbonization is improved, and they can be used as building materials. This device can achieve the effect of treating gaseous waste with solid waste, that is, treating waste with waste.

[0033] Both the first inlet / outlet guide plate 1a1 and the second inlet / outlet guide plate 1a4 are connected to the flue gas inlet / outlet 1h. After the industrial flue gas enters the main body 1, it passes through the first inlet / outlet guide plate 1a1 and the second inlet / outlet guide plate 1a4, so that the industrial flue gas can enter the main body 1 more evenly. Temperature sensor 6 and pressure sensor 7 are installed on the pipe 1a0 near the flue gas inlet / outlet 1h. Temperature sensor 6 and pressure sensor 7 adjust the flue gas temperature and pressure of each flue gas inlet / outlet 1h in real time to avoid damage to the solid waste in the containment chamber 1i caused by excessive temperature or pressure. If the temperature or pressure is too low, the desired CO2 absorption effect will not be achieved.

[0034] One end of pipe 1a0 is connected to an exhaust fan, and the other end is connected to an intake fan. An axial flow fan 4 is installed on one of the pipes 1a0. The internal circulation axial flow fan 4 on pipe 1a0 can improve the absorption efficiency of CO2 in industrial flue gas by the brick blanks and control the absorption amount. By connecting the exhaust fan and the intake fan, the air volume entering the equipment can be adjusted. The gas enters the chamber body 1 evenly through the first inlet and outlet guide plate 1a1 and the second inlet and outlet guide plate 1a4. A guide plate (not shown in the figure) is set at the bend of the air duct of the chamber body 1 to make the flue gas enter the next channel evenly. The number of objects to be cured placed in the containment chamber 1i can also determine and adjust the temperature of the outlet flue gas and the CO2 content in the flue gas in real time. Two or more chamber bodies 1 are set in parallel. The chamber body 1 that is not in operation can be replaced with materials to realize the continuous operation of the device.

[0035] It should be noted that the exhaust fan, the inlet fan, and the axial flow fan 4 can be either variable frequency fans or non-variable frequency fans.

[0036] The bottom of the main body 1 is connected to a drainage channel 1b, which can promptly remove water accumulated inside the main body 1, reducing corrosion to the equipment and heat loss.

[0037] Each containment chamber 1i is equipped with a water mist nozzle 1d, which is connected to a water pipe. The water pipe is connected to a nozzle section 1g, which is connected to an external water supply device. With the water mist nozzle 1d and some control valves installed on each floor, the humidity in the containment chamber 1i can be effectively controlled, and the drying rate can be controlled.

[0038] Each containment chamber 1i is equipped with a humidity sensor 1e, which is associated with a water mist nozzle 1d. The humidity sensor 1e monitors the humidity in the containment chamber 1i in real time. When the humidity is not suitable for the brick blank, the water mist nozzle 1d can be turned off or on for adjustment.

[0039] A carbonized hatch 1f is provided on one side of the main body 1. The carbonized hatch 1f ensures the airtightness of the main body 1 and facilitates the loading and unloading of objects to be maintained.

[0040] like Figure 3 As shown, it consists of two equal-sized chambers 1 connected in series by a gas pipeline 1a0. Each chamber 1 has multiple storage compartments 1i for accommodating brick blanks. One side of the chamber 1 is equipped with a carbonization door 1f that can be opened and closed, which facilitates the entry and exit of brick blanks. The door can also serve as a dust removal tool.

[0041] Several observation holes 1c are provided on the main body of the cabin, which allows staff to observe the condition of the components being maintained at any time.

[0042] Example 1: The flue gas enters chamber 1 from the lower side inlet. Electric butterfly valves 5a-5j (5g, 5h) are closed, while other valves are open. If only one chamber 1 needs to be operational, electric butterfly valves 5a-5j (5e, 5j) can be closed, allowing loading and unloading of objects to be maintained in the other chamber 1. If only the other chamber 1 needs to be operational, electric butterfly valves 5a-5j (5d, 5i) can be closed, allowing loading and unloading of objects to be maintained in one chamber 1. When the flue gas entry direction needs to be changed to the higher side of chamber 1, electric butterfly valves 5a-5j (5c, 5f) need to be closed, while other valves are open. The operational state of chamber 1 is related to the opening and closing of the electric valves before and after it, and is determined according to process requirements.

[0043] Example 2: When it is necessary to circulate the flue gas within the main body 1 to achieve the effect of fully absorbing CO2 in the flue gas, the flue gas exhaust fan 2, the flue gas inlet fan 3, and the two electric butterfly valves 5a to 5j can be closed. The axial flow fan 4 can be set to rotate in both directions, so that the flue gas can also change direction during the internal circulation process.

[0044] Example 3: Industrial flue gas enters the interior of the chamber body 1 and first passes through the first inlet / outlet guide plate 1a1, where it flows to the right after being evenly distributed. When the flue gas reaches the right end, it passes through the first circulation guide plate 1a2 and enters the upper channel. Then, the flue gas flows to the left. When the flue gas reaches the left end, it passes through the second circulation guide plate 1a3 and enters the upper channel. Then, the flue gas flows to the right and exits at the flue gas inlet / outlet 1h. Similarly, industrial flue gas enters from the upper right opening, first passes through the second inlet / outlet guide plate 1a4, where it flows to the left after being evenly distributed. When the flue gas reaches the left end, it passes through the second circulation guide plate 1a3 and enters the upper channel. Then, the flue gas flows to the right. When the flue gas reaches the right end, it passes through the first circulation guide plate 1a2 and enters the upper channel. Then, the flue gas flows to the left and exits at the flue gas inlet / outlet 1h.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A bidirectional switching closed-loop curing carbonization device, characterized in that, include The cabin body (1) includes vertical and horizontal types. Several accommodating chambers (1i) are arranged inside the cabin body (1). Adjacent accommodating chambers (1i) are connected to form airflow channels. Several brick support platforms are arranged in each accommodating chamber (1i). A first inlet / outlet guide plate (1a1), a first circulation guide plate (1a2), a second circulation guide plate (1a3), and a second inlet / outlet guide plate (1a4) are arranged on the cabin body (1).

2. The bidirectional switching closed-loop curing carbonization device according to claim 1, characterized in that, Each brick support base has a hollow structure.

3. The bidirectional switching closed-loop curing carbonization device according to claim 1, characterized in that, The main body (1) of the cabin is connected to several pipes (1a0), and each pipe (1a0) is equipped with at least one electric butterfly valve (5a~5j).

4. The bidirectional switching closed-loop curing carbonization device according to claim 1, characterized in that, The first inlet / outlet guide plate (1a1) and the second inlet / outlet guide plate (1a4) are both connected to flue gas inlet / outlet (1h), and a temperature sensor (6) and a pressure sensor (7) are installed on the pipe (1a0) near the flue gas inlet / outlet (1h).

5. The bidirectional switching closed-loop curing carbonization system and device according to claim 3, characterized in that, One end of the pipe (1a0) is connected to an exhaust fan, and the other end of the pipe (1a0) is connected to an intake fan. An axial flow fan (4) is installed on one of the pipes (1a0).

6. The bidirectional switching closed-loop curing carbonization device according to claim 1, characterized in that, The bottom of the cabin body (1) is connected to a drainage channel (1b).

7. The bidirectional switching closed-loop curing carbonization device according to claim 1, characterized in that, Each containment chamber (1i) is equipped with a water mist nozzle (1d), which is connected to a water pipe. The water pipe is connected to a nozzle stub (1g), which is externally connected to a water supply device.

8. The bidirectional switching closed-loop curing carbonization device according to claim 1, characterized in that, Each containment chamber (1i) is equipped with a humidity sensor (1e), which is associated with a water mist nozzle (1d).

9. The bidirectional switching closed-loop curing carbonization device according to claim 1, characterized in that, A carbonized hatch (1f) is provided on one side of the main body of the cabin (1).

10. The bidirectional switching closed-loop curing carbonization device according to claim 1, characterized in that, The cabin body (1) has several observation holes (1c).

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