Gas washing device for superfine calcium production

By designing a gas washing device for ultrafine calcium production and utilizing a combination of multi-layer filler layers and sprayers, the problem of uneven exhaust gas movement was solved, efficient exhaust gas treatment was achieved, and the purity and whiteness of calcium carbonate were improved.

CN223351393UActive Publication Date: 2025-09-19JINGXING JINGHUA CALCIUM IND
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422615951.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-09-19
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

In the prior art, the tail gas moves unevenly in the scrubber and moves a short distance, resulting in poor tail gas treatment effect.

Method used

A scrubbing device for ultrafine calcium production was designed, comprising a tower body, an air inlet pipe, first and second packing layers, an inclined baffle, an auxiliary sprayer, and a main sprayer. Through the combination of multiple dispersed air outlets, scrubbing passages, and multiple packing layers, the contact area and movement distance between the exhaust gas and the scrubbing solution were increased, achieving uniform movement.

Benefits of technology

It improves the exhaust gas treatment effect, enhances the ability to remove impurity gases in the exhaust gas, improves the purity and whiteness of calcium carbonate, and reduces the iron and manganese content, reaching a purity of 97-99w/% and a whiteness of 95%.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223351393U_ABST
    Figure CN223351393U_ABST
Patent Text Reader

Abstract

The utility model provides a gas washing device for superfine calcium production, which belongs to the technical field of calcium carbonate production and comprises a tower body, a gas inlet pipeline, a first packing layer, an inclined baffle, a second packing layer, two auxiliary sprayers and a main sprayer. The tower body is provided with a working cavity, a scrubbing solution, a liquid outlet and an exhaust port; the gas inlet pipeline is mounted on the tower body, and one end extends towards the bottom of the tower body and is provided with a plurality of gas outlets; the second packing layer is mounted in the tower body, and the lower end of the second packing layer is fixedly connected with the inclined baffle; gas washing passages are formed on the two sides of the second filler layer; the auxiliary sprayers are fixedly mounted in the tower body and are respectively positioned on two sides of the second filler layer; the two auxiliary sprayers are arranged up and down at an interval; and the main sprayer is arranged in the tower body and is positioned above the gas washing passage and the auxiliary sprayer. According to the gas washing device for superfine calcium production, the moving distance of tail gas in the working cavity is increased, and the tail gas treatment effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of calcium carbonate production, and more specifically relates to an air washing device for ultrafine calcium production. Background Art

[0002] Ultrafine calcium carbonate is a type of calcium carbonate widely used in the plastics industry for applications such as pipes, films, coatings, paints, tires, papermaking, and food additives. Ultrafine calcium carbonate refers to calcium carbonate with particle sizes between 0.02 and 0.1 μm. Its unique quantum size effect, small size effect, and surface effect give it significant advantages over conventional powder materials in terms of reinforcement, transparency, dispersibility, thixotropy, and leveling. The processing of ultrafine calcium carbonate generates a large amount of exhaust gas, which is then treated and used in subsequent processes. Currently, exhaust gas treatment involves adding it to a scrubber, where it comes into contact with the scrubbing solution, removing impurities from the exhaust. However, the uneven movement of the exhaust gas within the scrubber results in poor exhaust treatment effectiveness. Furthermore, the exhaust gas travels a short distance, making it difficult to effectively remove impurities. Utility Model Content

[0003] The purpose of the utility model is to provide a scrubbing device for ultrafine calcium production to solve the technical problems in the prior art that the tail gas moves unevenly in the scrubbing tower and the tail gas movement distance is short, resulting in poor tail gas treatment effect.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide an air washing device for ultrafine calcium production, comprising:

[0005] The tower body has a working chamber inside, and the bottom of the working chamber contains a scrubbing solution; the lower end of the tower body is provided with a drain port, and the top is provided with an exhaust port;

[0006] an air inlet pipe installed on the tower body; one end of the air inlet pipe is passed through the side wall of the tower body and is located outside the tower body; the other end of the air inlet pipe extends toward the bottom of the tower body into the scrubbing solution and has a plurality of dispersed air outlets;

[0007] a first packing layer installed in the tower body and located above the working chamber;

[0008] An inclined baffle is installed in the tower body, with its lower end fixedly connected to the inner wall of the tower body and its upper end located in the middle of the tower body;

[0009] A second packing layer is installed in the tower body and arranged vertically; the lower end of the second packing layer is fixedly connected to the upper end of the inclined baffle; both sides of the second packing layer form a scrubbing passage for the flow of exhaust gas;

[0010] There are two auxiliary sprayers, both fixedly installed in the tower body and located on both sides of the second packing layer; the two auxiliary sprayers correspond to the second packing layer and are spaced apart from each other;

[0011] The main sprayer is installed in the tower body and is located above the air washing passage and the auxiliary sprayer.

[0012] In a possible implementation, the air intake duct includes:

[0013] a transverse tube passing through the outer wall of the tower body, with two ends of the transverse tube respectively located on the inner and outer sides of the tower body;

[0014] A vertical tube is installed in the tower body and is located below the horizontal tube; the upper end of the vertical tube is connected to the end of the horizontal tube located inside the tower body;

[0015] There are multiple auxiliary pipes, which are radially distributed around the vertical pipe; one end of the auxiliary pipe is fixedly connected to the vertical pipe, and the other end extends toward the inner wall of the tower body; the ports at the other ends of the multiple auxiliary pipes are the multiple air outlets.

[0016] In one possible implementation, the horizontal tube and the vertical tube are integrally formed, the air intake duct also includes a vertically arranged central tube, a plurality of auxiliary tubes are arranged around the central tube and fixedly connected to the central tube, and the central tube is installed from bottom to top at the lower end of the vertical tube.

[0017] In a possible implementation, a water storage tank and a one-way valve installed at the bottom of the water storage tank are provided at the lower end of the inclined baffle.

[0018] In one possible implementation, the auxiliary sprayer includes:

[0019] A half plate is arranged horizontally and installed in the tower body; one side of the half plate is installed in cooperation with the inner wall of the tower body, and the other side is installed in cooperation with the second packing layer;

[0020] There are multiple water pipes, all fixedly installed on the lower end surface of the half plate;

[0021] There are multiple nozzles, all installed on the water pipe, for spraying the scrubbing solution downward.

[0022] In a possible implementation, the two half plates are respectively installed on the upper end side and the middle side of the second filler layer.

[0023] In a possible implementation, sealing strips for sealingly connecting with the inner wall of the tower body are provided on the side surfaces of the first packing layer, the second packing layer, and the inclined baffle.

[0024] In one possible implementation, the main sprinkler includes:

[0025] A first pipeline group is installed in the tower body; a plurality of first pipelines in the first pipeline group are arranged in parallel and spaced apart; each first pipeline is provided with a plurality of nozzles;

[0026] The second pipeline group is installed in the tower body and is located below the first pipeline group; multiple second pipelines in the second pipeline group are arranged in parallel and spaced apart; each second pipeline is provided with a plurality of nozzles; the length direction of the second pipeline is perpendicular to the length direction of the first pipeline, and the second pipeline is located between two adjacent nozzles on the first pipeline.

[0027] In a possible implementation, a liquid inlet pipe for adding the scrubbing solution into the working chamber is provided on the tower body, and the liquid inlet pipe is located above the scrubbing solution.

[0028] In a possible implementation, a plurality of supporting legs are provided at the lower end of the tower body. A drainage pipe is provided at the lower end of the tower body. The upper end of the drainage pipe is located in communication with the drainage port. A valve is provided on the drainage pipe.

[0029] The beneficial effects of the gas washing device for ultrafine calcium production provided by the utility model are as follows: compared with the prior art, the gas washing device for ultrafine calcium production provided by the utility model, when working, the tail gas enters the tower body from the air inlet pipe, and is evenly dispersed in the working chamber with the help of a plurality of dispersed gas outlets; the tail gas reacts with the gas washing solution to absorb a part of the impurity gas and continues to move upward, and the tail gas enters the first packing layer to increase the contact area between the gas washing solution and the tail gas, and the impurity gas in the tail gas is further absorbed; then the tail gas continues to rise and enters the gas washing passage on one side of the interior of the tower body along the guide line of the inclined plate, and with the help of the gas washing passage, The second packing layer and two auxiliary sprayers increase the distance the exhaust gas moves in the working chamber, and with the help of the second packing layer, the impurity gas in the exhaust gas is fully contacted and reacted with the scrubbing solution sprayed by the auxiliary sprayer; finally, the exhaust gas that continues to move upward further contacts and reacts with the scrubbing solution sprayed by the main sprayer to remove the impurity gas and discharge it from the exhaust port; in this way, the movement process of the exhaust gas in the tower body is more uniform, and the distance the exhaust gas moves in the working chamber is also increased. The exhaust gas will pass through the first packing layer and the second packing layer to fully contact and react with the scrubbing solution, thereby improving the exhaust gas treatment effect. The calcium carbonate produced in this way has good characteristics, especially in terms of purity, whiteness and iron and manganese content. Among them, the purity of calcium carbonate can reach between 97-99w / %, and the whiteness reaches more than 95%; while the iron content is less than 0.05w / %, and the manganese content is less than 0.005w / %. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 A front view of the internal structure of the gas washing device for ultrafine calcium production provided by an embodiment of the present utility model;

[0032] Figure 2 A schematic structural diagram of an air intake duct provided in an embodiment of the present utility model;

[0033] Figure 3 A schematic diagram of the connection between the inclined baffle and the second packing layer provided in an embodiment of the present utility model;

[0034] Figure 4 This is a front view of a scrubbing device for producing ultrafine calcium provided by an embodiment of the present utility model.

[0035] Among them, the reference numerals in the figures are:

[0036] 1. Tower body; 11. Working chamber; 12. Scrubbing solution; 13. Drain port; 14. Exhaust port; 15. Liquid inlet pipe; 16. Drain pipe; 17. Valve; 18. Support leg; 2. Air inlet pipe; 21. Air outlet; 22. Horizontal pipe; 23. Vertical pipe; 24. Auxiliary pipe; 25. Center pipe; 3. First packing layer; 4. Inclined baffle; 41. Water storage tank; 42. One-way valve; 5. Second packing layer; 51. Scrubbing passage; 6. Auxiliary sprinkler; 61. Half plate; 62. Water pipe; 63. Sprinkler; 7. Main sprinkler; 71. First pipeline; 72. Second pipeline. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0041] See also Figures 1 to 4, the scrubbing device for ultrafine calcium production provided by the utility model is now described. A scrubbing device for ultrafine calcium production, comprising a tower body 1, an air inlet pipe 2, a first packing layer 3, an inclined baffle 4, a second packing layer 5, an auxiliary sprayer 6 and a main sprayer 7; a working chamber 11 is provided inside the tower body 1, and a scrubbing solution 12 is contained at the bottom of the working chamber 11; a liquid discharge port 13 is provided at the lower end of the tower body 1, and an exhaust port 14 is provided at the top; the air inlet pipe 2 is installed on the tower body 1; one end of the air inlet pipe 2 is passed through the side wall of the tower body 1 and is located outside the tower body 1; the other end of the air inlet pipe 2 extends toward the bottom of the tower body 1 into the scrubbing solution 12, and has a plurality of dispersedly arranged air outlets 21; the first packing layer 3 is installed in the tower body 1, and is located at Above the working chamber 11; the inclined baffle 4 is installed in the tower body 1, and the lower end is fixedly connected to the inner wall of the tower body 1, and the upper end is located in the middle position of the tower body 1; the second packing layer 5 is installed in the tower body 1 and is arranged vertically; the lower end of the second packing layer 5 is fixedly connected to the upper end of the inclined baffle 4; both sides of the second packing layer 5 form a scrubbing passage 51 for the flow of exhaust gas; there are two auxiliary sprayers 6, both of which are fixedly installed in the tower body 1 and are respectively located on both sides of the second packing layer 5; the two auxiliary sprayers 6 correspond to the second packing layer 5 and are arranged at intervals up and down; the main sprayer 7 is installed in the tower body 1 and is located above the scrubbing passage 51 and the auxiliary sprayer 6.

[0042] Compared with the prior art, the gas washing device for ultrafine calcium production provided by the present invention is as follows: when working, the tail gas enters the tower body 1 from the air inlet pipe 2 and is evenly dispersed in the working chamber 11 by means of a plurality of dispersed gas outlets 21; the tail gas reacts with the gas washing solution 12 to absorb a portion of the impurity gas and continues to move upward, and the tail gas enters the first packing layer 3 to increase the contact area between the gas washing solution 12 and the tail gas, and the impurity gas in the tail gas is further absorbed; then the tail gas continues to rise and enters the gas washing passage 51 on one side of the interior of the tower body 1 along the guide line of the inclined plate, and is dispersed in the working chamber 11 by means of the gas washing passage 51, the second packing layer 5 and the two auxiliary sprayers 6. While increasing the moving distance of the exhaust gas in the working chamber 11, the second packing layer 5 is used to make the impurity gas in the exhaust gas fully contact and react with the scrubbing solution 12 sprayed by the auxiliary sprayer 6; finally, the exhaust gas that continues to move upward is further contacted and reacted with the scrubbing solution 12 sprayed by the main sprayer 7 to remove the impurity gas and is discharged from the exhaust port 14; in this way, the movement process of the exhaust gas in the tower body 1 is more uniform, and the moving distance of the exhaust gas in the working chamber 11 is also increased. The exhaust gas will pass through the first packing layer 3 and the second packing layer 5 to make the exhaust gas fully contact and react with the scrubbing solution 12, thereby improving the treatment effect of the exhaust gas.

[0043] See also Figure 1 and Figure 2As a specific embodiment of the air washing device for ultrafine calcium production provided by the present invention, the air inlet pipe 2 includes a horizontal pipe 22, a vertical pipe 23 and an auxiliary pipe 24; the horizontal pipe 22 is passed through the outer wall of the tower body 1, and the two ends of the horizontal pipe 22 are respectively located on the inner and outer sides of the tower body 1; the vertical pipe 23 is installed in the tower body 1 and is located below the horizontal pipe 22; the upper end of the vertical pipe 23 is connected to the end of the horizontal pipe 22 located inside the tower body 1; the number of auxiliary pipes 24 is multiple, and they are radially distributed around the vertical pipe 23; one end of the auxiliary pipe 24 is fixedly connected to the vertical pipe 23, and the other end extends toward the inner wall of the tower body 1; the ports at the other ends of the multiple auxiliary pipes 24 are Multiple gas outlets 21 are provided. A through-hole is formed in the sidewall of the tower body 1, and a transverse tube 22 is inserted through the through-hole and sealed therewith. One end of the transverse tube 22 is located outside the tower body 1, and the other end extends toward the center of the tower body 1. The upper end of a vertical tube 23 is connected to the other end of the transverse tube 22, and the lower end extends toward the bottom of the tower body 1. Multiple auxiliary tubes 24 are installed on the outer side of the lower end of the vertical rod, and the multiple auxiliary tubes 24 are arranged radially. One end of the auxiliary tube 24 is connected to and communicates with the vertical tube 23. Exhaust gas enters from one end of the transverse tube 22, and then enters the vertical tube 23 and the multiple auxiliary tubes 24, dispersing outward and flowing into the working chamber 11 to react with the scrubbing solution 12. Preferably, there are four to six auxiliary tubes 24.

[0044] See also Figure 2 As a specific embodiment of the gas washing device for ultrafine calcium production provided by the present invention, the horizontal tube 22 and the vertical tube 23 are integrally formed. The air intake duct 2 also includes a vertically arranged central tube 25. Multiple auxiliary tubes 24 are arranged around the central tube 25 and fixedly connected to the central tube 25. The central tube 25 is installed from bottom to top at the lower end of the vertical tube 23. The vertical tube 23 and the horizontal tube 22 are integrally formed into an L-shaped structure, ensuring a stable connection between the two. The central tube 25 is set, and the multiple auxiliary tubes 24 are first connected to the central tube 25, and the central tube 25 is connected to the lower end of the vertical tube 23. The central tube 25 and the vertical tube 23 are connected by thread.

[0045] See also Figure 1 As a specific embodiment of the gas washing device for ultrafine calcium production provided by the present invention, a water storage tank 41 and a one-way valve 42 installed at the bottom of the water storage tank 41 are provided at the lower end of the inclined baffle 4; the gas washing solution 12 flowing from top to bottom falls on the inclined baffle 4 and enters the water storage tank 41; after a certain amount of water is in the water storage tank 41, the one-way valve 42 is opened and the gas washing solution continues to flow downward into the bottom of the tower body 1; thus, gas leakage is avoided.

[0046] See also Figure 1As a specific embodiment of the gas washing device for ultrafine calcium production provided by the present invention, the auxiliary sprayer 6 includes a half-plate 61, a water pipe 62, and a nozzle 63: the half-plate 61 is arranged horizontally and installed in the tower body 1; one side of the half-plate 61 is installed in conjunction with the inner wall of the tower body 1, and the other side is installed in conjunction with the second packing layer 5; the number of the water pipe 62 is multiple, all of which are fixedly installed on the lower end surface of the half-plate 61; the number of the nozzle 63 is multiple, all of which are installed on the water pipe 62 for spraying the gas washing solution 12 downward; the half-plate 61 is installed on the tower body 1 The auxiliary sprayer 6 closes the scrubbing passage 51 on one side, and is installed in conjunction with the inner wall of the tower body 1, and the other side is installed in conjunction with the second packing layer 5, thereby closing the scrubbing passage 51 on one side, and the other auxiliary sprayer 6 closes the scrubbing passage 51 on the other side, and with the help of the auxiliary sprayers 6 staggered up and down, the scrubbing passage 51 is better sealed; a water pipe 62 is fixedly mounted on the lower end of the half-piece 61, and a nozzle 63 is mounted on the water pipe 62; one end of the water pipe 62 is located outside the tower body 1, and the scrubbing solution 12 enters the tower body 1 through the water pipe 62, and is sprayed downward through the nozzle 63.

[0047] See also Figure 1 As a specific embodiment of the scrubbing device for ultrafine calcium production provided by the utility model, two half-plates 61 are respectively installed on the upper end side and the middle side of the second packing layer 5; the exhaust gas moves up along the inclined baffle 4 to the bottom of the auxiliary sprayer 6 located in the middle position, and is affected by the scrubbing solution 12 sprayed by the auxiliary sprayer 6, and then passes through the second packing layer 5 on one side into the scrubbing passage 51 on the other side, and is affected by the scrubbing solution 12 sprayed by the auxiliary sprayer 6 located at the top of the second packing layer 5; then the exhaust gas passes through the second packing layer 5 on one side and flows out of the scrubbing passage 51.

[0048] As a specific embodiment of the gas washing device for ultrafine calcium production provided by the utility model, sealing strips for sealing connection with the inner wall of the tower body 1 are provided on the sides of the first packing layer 3, the second packing layer 5 and the inclined baffle 4; with the help of the sealing strips, the movement process route of the exhaust gas is accurate, ensuring a good treatment effect of the exhaust gas.

[0049] See also Figure 1As a specific embodiment of the gas washing device for ultrafine calcium production provided by the present invention, the main sprayer 7 includes a first pipeline group and a second pipeline group; the first pipeline group is installed in the tower body 1; multiple first pipelines 71 in the first pipeline group are arranged in parallel and spaced apart; each first pipeline 71 is provided with a plurality of nozzles 63; the second pipeline group is installed in the tower body 1 and is located below the first pipeline group; multiple second pipelines 72 in the second pipeline group are arranged in parallel and spaced apart; each second pipeline 72 is provided with a plurality of nozzles 63; the length direction of the second pipeline 72 is perpendicular to the length direction of the first pipeline 71, and the second pipeline 72 is located between two adjacent nozzles 63 on the first pipeline 71; in this way, the nozzles 63 on the multiple first pipelines 71 and the nozzles 63 on the multiple second pipelines 72 have a larger coverage area in the tower body 1, and the exhaust gas is smoothly moved upward by the first pipeline 71 and the second pipeline 72 arranged in an upper and lower interval.

[0050] See also Figure 1 As a specific embodiment of the scrubbing device for ultrafine calcium production provided by the utility model, a liquid inlet pipe 15 for adding scrubbing solution 12 into the working chamber 11 is provided on the tower body 1. The liquid inlet pipe 15 is located above the scrubbing solution 12. When it is necessary to add scrubbing solution 12 to the working chamber 11, the staff can directly add the scrubbing solution 12 into the tower body 1 through the liquid inlet pipe 15, which is convenient and quick to operate. The liquid inlet pipe 15 is set above the scrubbing solution 12 to avoid interference. A plug is installed at the outer end of the liquid inlet pipe 15 to prevent external impurities from entering the tower body 1 through the liquid inlet pipe 15.

[0051] See also Figure 1 and Figure 4 As a specific embodiment of the gas washing device for ultrafine calcium production provided by the present invention, a plurality of support legs 18 are provided at the lower end of the tower body 1. A drain pipe 16 is provided at the lower end of the tower body 1. The upper end of the drain pipe 16 is located and connected to the drain port 13. A valve 17 is provided on the drain pipe 16. The support legs 18 are provided to support the tower body 1, so that a certain installation space is provided between the bottom of the tower body 1 and the ground. The drain pipe 16 is then installed at the lower end of the tower body 1. One end of the drain pipe 16 is connected to the drain port 13. The valve 17 is also installed on the drain pipe 16. When it is necessary to discharge the gas washing solution 12, a liquid storage tank or the like is placed in the installation space below the tower body 1. The valve 17 is opened to allow the gas washing solution 12 in the tower body 1 to flow out through the drain port 13 and the drain pipe 16.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A scrubber for producing ultrafine calcium, characterized in that: include: The tower body has a working chamber inside, and the bottom of the working chamber contains a scrubbing solution; the lower end of the tower body is provided with a drain port, and the top is provided with an exhaust port; an air inlet pipe installed on the tower body; one end of the air inlet pipe is passed through the side wall of the tower body and is located outside the tower body; the other end of the air inlet pipe extends toward the bottom of the tower body into the scrubbing solution and has a plurality of dispersed air outlets; a first packing layer installed in the tower body and located above the working chamber; An inclined baffle is installed in the tower body, with its lower end fixedly connected to the inner wall of the tower body and its upper end located in the middle of the tower body; A second packing layer is installed in the tower body and arranged vertically; the lower end of the second packing layer is fixedly connected to the upper end of the inclined baffle; both sides of the second packing layer form a scrubbing passage for the flow of exhaust gas; There are two auxiliary sprayers, both fixedly installed in the tower body and located on both sides of the second packing layer; the two auxiliary sprayers correspond to the second packing layer and are spaced apart from each other; The main sprayer is installed in the tower body and is located above the air washing passage and the auxiliary sprayer.

2. The gas washing device for producing ultrafine calcium according to claim 1, characterized in that: The air intake duct comprises: a transverse tube passing through the outer wall of the tower body, with two ends of the transverse tube respectively located on the inner and outer sides of the tower body; A vertical tube is installed in the tower body and is located below the horizontal tube; the upper end of the vertical tube is connected to the end of the horizontal tube located inside the tower body; There are multiple auxiliary pipes, which are radially distributed around the vertical pipe; one end of the auxiliary pipe is fixedly connected to the vertical pipe, and the other end extends toward the inner wall of the tower body; the ports at the other ends of the multiple auxiliary pipes are the multiple air outlets.

3. The gas washing device for producing ultrafine calcium according to claim 2, characterized in that: The transverse tube and the vertical tube are integrally formed, and the air intake duct further includes a vertically arranged central tube. A plurality of auxiliary tubes are arranged around the central tube and fixedly connected to the central tube. The central tube is installed at the lower end of the vertical tube from bottom to top.

4. The gas washing device for producing ultrafine calcium according to claim 1, characterized in that: The lower end of the inclined baffle is provided with a water storage tank and a one-way valve installed at the bottom of the water storage tank.

5. The gas washing device for producing ultrafine calcium according to claim 1, characterized in that: The auxiliary sprayer comprises: A half plate is arranged horizontally and installed in the tower body; one side of the half plate is installed in cooperation with the inner wall of the tower body, and the other side is installed in cooperation with the second packing layer; There are multiple water pipes, all fixedly installed on the lower end surface of the half plate; There are multiple nozzles, all installed on the water pipe, for spraying the scrubbing solution downward.

6. The gas washing device for producing ultrafine calcium according to claim 5, characterized in that: The two half plates are respectively installed on the upper end side and the middle side of the second filler layer.

7. The gas washing device for producing ultrafine calcium according to claim 1, characterized in that: Sealing strips for sealing connection with the inner wall of the tower body are provided on the side surfaces of the first packing layer, the second packing layer and the inclined baffle.

8. The gas washing device for producing ultrafine calcium according to claim 1, characterized in that: The main sprinkler comprises: A first pipeline group is installed in the tower body; a plurality of first pipelines in the first pipeline group are arranged in parallel and spaced apart; each first pipeline is provided with a plurality of nozzles; The second pipeline group is installed in the tower body and is located below the first pipeline group; multiple second pipelines in the second pipeline group are arranged in parallel and spaced apart; each second pipeline is provided with a plurality of nozzles; the length direction of the second pipeline is perpendicular to the length direction of the first pipeline, and the second pipeline is located between two adjacent nozzles on the first pipeline.

9. The gas washing device for producing ultrafine calcium according to claim 1, characterized in that: The tower body is provided with a liquid inlet pipe for adding the scrubbing solution into the working chamber, and the liquid inlet pipe is located above the scrubbing solution.

10. The gas washing device for producing ultrafine calcium according to claim 9, characterized in that: The lower end of the tower body is provided with a plurality of supporting legs, the lower end of the tower body is provided with a drainage pipe, the upper end of the drainage pipe is located in communication with the drainage port; and a valve is provided on the drainage pipe.