A carbon dioxide capture carbonation furnace

Abstract

The utility model discloses a kind of carbon dioxide capture carbonation furnace, including furnace body, still including air inlet pipe, air inlet pipe fixed mounting is at furnace body bottom, and air inlet pipe input end is used to connect carbon dioxide gas source;Air intake component, air intake component setting is at furnace body bottom, and air intake component input end is fixedly connected with air inlet pipe;Air intake component includes air disc, air disc upper portion is fixedly connected with spoiler, and multiple spoilers are circumferentially arrayed on air disc upper portion, each spoiler is respectively provided with several air passages, which are communicated with air disc, and air passage is communicated with air inlet pipe.The utility model introduces carbon dioxide into air disc by bottom air inlet pipe, and uniformly diffuses to reaction space by spoiler multi-point distribution, realizes horizontal and vertical gas uniform flow, makes carbonate deposit in fixed carbon dioxide of filler layer, and exhaust gas is discharged after being filtered and purified by upper discharge port and meets the emission standard.

Description

Technical Field

[0001] This utility model belongs to the field of carbon dioxide capture technology, and in particular relates to a carbon dioxide capture carbonation furnace. Background Technology

[0002] A carbon dioxide capture carbonation furnace is a reaction device specifically designed for the reduction and resource utilization of carbon dioxide emissions from industrial waste gas. Its structure typically includes a furnace body, gas distribution pipes, distribution plates, reaction packing layers, heating and cooling systems, and dust removal, filtration, and waste gas emission systems. By filling the furnace body with calcium-based or magnesium-based absorbents, the incoming carbon dioxide-containing gas is evenly distributed and comes into full contact with the packing, undergoing a carbonation reaction to generate stable carbonate solids. This achieves the capture and long-term immobilization of gaseous carbon dioxide. At the same time, the heating and temperature control systems equipped on the outside of the furnace body can maintain optimal reaction conditions. The waste gas is filtered and discharged in compliance with standards. The entire process can effectively reduce greenhouse gas emissions and allow the reaction products to be used in building materials, fillers, etc., achieving synergistic benefits of carbon dioxide emission reduction and resource utilization.

[0003] However, existing technologies have some problems: the gas inlet pipe of traditional acidification furnaces is usually only arranged on one side of the furnace body, which causes the carbon dioxide gas to flow in one direction and be locally concentrated after entering the reaction chamber. The gas diffusion in the packing layer is insufficient, and some areas are prone to excessively high gas concentration while other areas are thin, which leads to reduced gas-solid contact efficiency, uneven carbonation reaction, and ultimately affects the overall absorption conversion rate and the quality of carbonate products. Therefore, we propose a carbon dioxide capture carbonation furnace. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a carbon dioxide capture and carbonation furnace.

[0005] This utility model is implemented as follows: a carbon dioxide capture carbonation furnace includes a furnace body and an inlet pipe, the inlet pipe being fixedly installed at the bottom of the furnace body, with its input end connected to a carbon dioxide gas source; an inlet assembly, the inlet assembly being disposed at the bottom of the furnace body, with its input end fixedly connected to the inlet pipe; the inlet assembly includes a gas plate, with a baffle plate fixedly connected to the upper part of the gas plate, and multiple baffle plates arranged in a circumferential array on the upper part of the gas plate, each baffle plate having several gas channels communicating with the gas plate, the gas channels communicating with the inlet pipe. In use, the inlet pipe, in conjunction with the gas plate, achieves uniform gas release and, in conjunction with the furnace body, achieves carbon dioxide capture.

[0006] As a preferred embodiment of this invention, a feed pipe is fixedly installed on the upper part of the furnace body, and the feed pipe is used to input filler into the furnace body.

[0007] As a preferred embodiment of this utility model, a hopper is fixedly installed at the lower part of the furnace body. The hopper is used to receive the seasonings transmitted by the feed pipe. The discharge pipe fixed at the lower part of the hopper extends through the furnace body to the outside and cooperates with the material valve to realize the saturated packing discharge action.

[0008] In a preferred embodiment of this invention, the hopper is provided with several air holes, the hopper separates the furnace body, and the carbon dioxide output from the gas plate reacts with the packing material inside the hopper through the air holes, and is finally discharged through the air outlet opened at the top of the furnace body.

[0009] As a preferred embodiment of the present invention, the air intake assembly further includes an air ring fixed to the bottom of the furnace body, the input end of the air ring being fixedly connected to the output end of the air intake pipe, and a rotating ring being rotatably installed inside the first annular air groove formed inside the air ring.

[0010] In a preferred embodiment of this invention, a number of inclined plates are fixedly connected in a uniform array around the second annular air groove inside the rotating ring. The air disk is fixed to the upper part of the rotating ring and communicates with the second annular air groove. When carbon dioxide passes through the second annular air groove, the inclined plates form a fan, which in turn drives the air disk to achieve a rotating exhaust action.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention introduces an external carbon dioxide gas source into the bottom of the furnace body through an inlet pipe. The gas first enters the gas plate in the inlet assembly, and then passes through multiple baffles set on the gas plate. The baffles have gas channels communicating with the gas plate, through which the carbon dioxide gas is evenly dispersed and diffuses along the furnace body cross-section into the reaction space. Unlike traditional single-sided gas distribution, this structure utilizes the multi-point distribution characteristics of the gas plate and baffles to effectively break the concentrated flow of gas rising in one direction, allowing the gas flow field to expand evenly in both the lateral and longitudinal directions, avoiding localized areas of excessively concentrated or insufficient gas. The carbonate produced in the reaction is deposited in the packing layer, achieving the fixation and resource utilization of carbon dioxide. Unabsorbed exhaust gas is purified through the upper exhaust port and filter device before being discharged, ensuring compliance with emission standards. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the furnace body provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the exploded structure of the air intake assembly provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating ring provided in an embodiment of this utility model.

[0013] In the diagram: 1. Furnace body; 2. Inlet pipe; 3. Outlet; 4. Feed pipe; 5. Inlet assembly; 6. Hopper; 7. Air vent; 8. Discharge pipe; 501. Air ring; 502. First annular air groove; 503. Rotating ring; 504. Second annular air groove; 505. Inclined plate; 506. Air disc; 507. Spoiler; 508. Air passage. Detailed Implementation

[0014] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0015] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0016] like Figures 1 to 4 As shown in the figure, the carbon dioxide capture carbonation furnace provided in this embodiment of the present invention includes a furnace body 1 and an air inlet pipe 2. The air inlet pipe 2 is fixedly installed at the bottom of the furnace body 1, and the input end of the air inlet pipe 2 is used to connect to a carbon dioxide gas source. An air inlet assembly 5 is disposed at the bottom of the furnace body 1, and the input end of the air inlet assembly 5 is fixedly connected to the air inlet pipe 2. The air inlet assembly 5 includes an air plate 506, and a baffle plate 507 is fixedly connected to the upper part of the air plate 506. Multiple baffle plates 507 are arranged in a circumferential array on the upper part of the air plate 506. Each baffle plate 507 has several air passages 508 that communicate with the air plate 506. The air passages 508 communicate with the air inlet pipe 2. In use, the air inlet pipe 2 cooperates with the air plate 506 to achieve uniform gas release and cooperates with the furnace body 1 to achieve carbon dioxide capture.

[0017] The aforementioned carbon dioxide capture carbonation furnace inputs an external carbon dioxide gas source into the bottom of the furnace body 1 through the gas inlet pipe 2. The gas first enters the gas plate 506 in the gas inlet assembly 5, and then passes through multiple baffles 507 set on the gas plate 506. The baffle 507 has an air passage 508 that communicates with the air plate 506. Carbon dioxide gas is evenly dispersed through these air passages 508 and diffuses into the reaction space along the cross section of the furnace body 1. Unlike traditional single-sided gas distribution, this structure utilizes the multi-point distribution characteristics of the gas plate 506 and the baffle 507 to effectively break the concentrated flow state of the gas rising in one direction, so that the gas flow field expands uniformly in the lateral and longitudinal directions, avoiding the phenomenon of excessively rich or low gas concentration in local areas. The carbonates generated during the reaction are deposited in the packing layer, achieving carbon dioxide immobilization and resource utilization. Exhaust gas that is not fully absorbed is purified through the upper exhaust port and filtration device before being discharged, ensuring compliance with emission standards.

[0018] In this embodiment, a feed pipe 4 is fixedly installed on the upper part of the furnace body 1. The feed pipe 4 is used to input filler into the furnace body 1. A hopper 6 is fixedly installed on the lower part of the furnace body 1. The hopper 6 is used to receive the seasonings transmitted by the feed pipe 4. The discharge pipe 8 fixed at the lower part of the hopper 6 extends through the furnace body 1 to the outside. It works with the material valve to realize the saturated filler discharge action. The hopper 6 has several air holes 7. The hopper 6 separates the furnace body 1. The carbon dioxide output by the gas plate 506 reacts with the filler inside the hopper 6 through the air holes 7 and is finally guided out through the air outlet 3 opened on the upper part of the furnace body 1.

[0019] The upper part of the furnace body 1 continuously feeds filler into the interior through the feed pipe 4. The filler falls into the lower hopper 6 along the feed pipe 4. The hopper 6 is used to temporarily store and distribute the filler. At the same time, several air holes 7 are opened in the hopper 6 to form a channel inside the hopper 6 that is connected to the airflow output from the air plate 506.

[0020] When carbon dioxide gas enters from the air inlet assembly 5 at the bottom of the furnace body 1, the gas first passes through the uniform distribution of the gas plate 506, and then permeates into the packing layer through the air holes 7 on the hopper 6, fully contacting and reacting with the packing to generate carbonates that are deposited inside the packing, thus achieving the fixation of carbon dioxide.

[0021] The feed pipe 8, in conjunction with the feed valve, can orderly discharge the reacted or saturated packing material from the furnace body 1, enabling continuous or periodic packing material replacement. The exhaust gas that is not fully absorbed during the reaction process is guided and discharged through the gas outlet 3 at the top of the furnace body 1. It can also be treated in conjunction with a filtration device or purification system to ensure that the exhaust gas emissions meet environmental protection requirements.

[0022] By separating the furnace body 1 by the hopper 6, the gas flows evenly within the packing layer, avoiding excessively strong or weak local airflow, thus improving the carbon dioxide absorption efficiency and immobilization effect. At the same time, it ensures the coordinated operation of continuous packing replenishment and discharge, thereby optimizing reaction stability and equipment operation continuity.

[0023] In this embodiment, the air intake assembly 5 also includes an air ring 501 fixed to the bottom of the furnace body 1. The input end of the air ring 501 is fixedly connected to the output end of the air intake pipe 2. A rotating ring 503 is rotatably installed inside the first annular air groove 502 opened inside the air ring 501. A number of inclined plates 505 are fixedly connected in a uniform array around the second annular air groove 504 opened inside the rotating ring 503. The air disk 506 is fixed on the upper part of the rotating ring 503 and communicates with the second annular air groove 504. When carbon dioxide passes through the second annular air groove 504, the number of inclined plates 505 form a fan, which in turn drives the air disk 506 to achieve a rotating exhaust action.

[0024] The air intake assembly 5 further includes an air ring 501 fixed to the bottom of the furnace body 1. The input end of the air ring 501 is fixedly connected to the output end of the air intake pipe 2. After the gas is introduced into the air ring 501 through the air intake pipe 2, it enters the rotating ring 503 along the first annular air groove 502.

[0025] The rotating ring 503 can rotate freely in the gas groove, and a second annular gas groove 504 is provided inside it. Several inclined plates 505 are evenly arranged around the second gas groove. When carbon dioxide gas flows through the second gas groove, the inclined plates 505 will form a flow guiding effect, causing the gas to rotate and flow tangentially, thereby driving the gas disk 506 to achieve rotational exhaust.

[0026] During the rotation of the gas plate 506, carbon dioxide gas forms a uniformly distributed rotating flow field within the furnace body 1, allowing the gas to diffuse fully in both the longitudinal and transverse directions, enhancing the contact efficiency with the packing material, and achieving uniform absorption and immobilization of carbon dioxide.

[0027] This rotating flow also prevents airflow concentration or stagnation, avoids localized packing saturation or gas loss, and improves overall absorption efficiency and reaction stability.

[0028] In addition, the rotating exhaust mechanism formed by the coordinated operation of the air ring 501, the rotating ring 503 and the inclined plate 505 makes the gas flow field controllable and uniform, which not only optimizes the gas distribution, but also assists the mechanical structure of the air plate 506 to achieve stable operation, and improves the automation and operational reliability of the equipment.

[0029] The working principle of this utility model: During operation, external carbon dioxide gas is introduced into the bottom of the furnace body 1 through the air inlet pipe 2. The gas first enters the gas plate 506 in the air inlet assembly 5, and then passes through multiple baffles 507 set on the gas plate 506. The baffles 507 have air passages 508 that communicate with the gas plate 506. The carbon dioxide gas is evenly dispersed through these air passages 508 and diffuses into the reaction space along the cross-section of the furnace body 1. Unlike the traditional single-sided gas distribution, this structure utilizes the multi-point distribution characteristics of the gas plate 506 and the baffles 507 to effectively break the concentrated flow state of unidirectional gas rise, so that the gas flow field is evenly expanded in the lateral and longitudinal directions, avoiding the phenomenon of excessively concentrated or insufficient gas in local areas. The carbonate generated by the reaction is deposited in the packing layer, realizing the fixation and resource utilization of carbon dioxide. The exhaust gas that is not completely absorbed is purified by the upper exhaust port and the filter device before being discharged to ensure that the emission meets the standards.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide capture carbonation furnace comprising a furnace body (1), characterised in that, Also includes: An air inlet pipe (2) is fixedly installed at the bottom of the furnace body (1), and the input end of the air inlet pipe (2) is used to connect to a carbon dioxide gas source; An air intake assembly (5) is provided at the bottom of the furnace body (1), and the input end of the air intake assembly (5) is fixedly connected to the air intake pipe (2); The air intake assembly (5) includes an air plate (506), and a baffle plate (507) is fixedly connected to the upper part of the air plate (506). Multiple baffle plates (507) are arranged in a circumferential array on the upper part of the air plate (506). Each baffle plate (507) has several air passages (508) that communicate with the air plate (506). The air passages (508) communicate with the air intake pipe (2). In use, the air intake pipe (2) works with the air plate (506) to achieve uniform air release and works with the furnace body (1) to achieve carbon dioxide capture.

2. A carbon dioxide capture carbonation furnace as claimed in claim 1, characterised in that: A feed pipe (4) is fixedly installed on the upper part of the furnace body (1), and the feed pipe (4) is used to input filler into the furnace body (1).

3. A carbon dioxide capture carbonation furnace as claimed in claim 2, characterised in that: A hopper (6) is fixedly installed at the lower part of the furnace body (1). The hopper (6) is used to receive the seasonings transmitted by the feed pipe (4). The discharge pipe (8) fixed at the lower part of the hopper (6) extends through the furnace body (1) to the outside and cooperates with the material valve to realize the saturated packing discharge action.

4. A carbon dioxide capture and carbonation furnace as described in claim 3, characterized in that: The hopper (6) has several air holes (7), the hopper (6) separates the furnace body (1), the carbon dioxide output by the gas plate (506) reacts with the packing inside the hopper (6) through the air holes (7), and is finally discharged through the gas outlet (3) opened on the upper part of the furnace body (1).

5. A carbon dioxide capture and carbonation furnace as described in claim 1, characterized in that: The air intake assembly (5) also includes an air ring (501) fixed at the bottom of the furnace body (1). The input end of the air ring (501) is fixedly connected to the output end of the air intake pipe (2). A rotating ring (503) is rotatably installed inside the first annular air groove (502) inside the air ring (501).

6. A carbon dioxide capture and carbonation furnace as described in claim 5, characterized in that: A number of inclined plates (505) are fixedly connected in a uniform array around the second annular air groove (504) inside the rotating ring (503). The air disk (506) is fixed on the upper part of the rotating ring (503) and communicates with the second annular air groove (504). When carbon dioxide passes through the second annular air groove (504), the inclined plates (505) form a fan, which in turn drives the air disk (506) to achieve a rotating exhaust action.

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