Flue gas recovery and purification device used for smelting in power-in-power mode

Abstract

The utility model discloses a flue gas recovery and purification device for forage grass smelting, which belongs to the technical field of flue gas purification and comprises a bottom plate, a filter tower, an adsorption tower and a catalytic incinerator are mounted at the top of the bottom plate, and the filter tower and the adsorption tower are communicated together through a connecting pipeline. The adsorption tower and the catalytic incinerator are connected together through a connecting assembly, and a filtering assembly and an adsorption assembly are installed in an inner cavity of the filtering tower and an inner cavity of the adsorption tower respectively. According to the utility model, through the cooperative use of the filter tower, the adsorption tower and the catalytic incinerator, the flue gas generated by the smelting of the forage grass can be firstly purified by the filter tower and adsorbed by the adsorption tower, and finally the flue gas after the filtration and adsorption treatment is subjected to high-temperature combustion by the catalytic incinerator, so that the flue gas generated by the smelting of the forage grass can be effectively purified, and the utilization rate of the flue gas is improved. And the top covers at the tops of the filtering tower and the adsorption tower in the device are detachably arranged, so that a user can conveniently replace the filler in the device.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification, in particular to a flue gas recovery and purification device for bismuth smelting. Background Art

[0002] With the rapid development of my country's economy, the demand for metal minerals is increasing. As one of the important metal mineral resources, the mining and utilization of tantalum mining is also receiving more and more attention. However, in the traditional tantalum mining production process, due to the lack of effective flue gas recovery and purification devices, a large amount of waste gas is generated. In order to reduce environmental pollution and improve resource utilization, a flue gas recovery and purification device for tantalum smelting is urgently needed. Utility Model Content

[0003] The purpose of the utility model is to provide a fume recovery and purification device for tantalum smelting, which has the advantage of being able to effectively purify the fume generated by tantalum smelting, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides a fume recovery and purification device for arsenic smelting, comprising a base plate, a filter tower, an adsorption tower and a catalytic incinerator are installed on the top of the base plate, the filter tower and the adsorption tower are connected together through a connecting pipe, the adsorption tower and the catalytic incinerator are connected together through a connecting assembly, the inner cavities of the filter tower and the adsorption tower are respectively installed with a filter assembly and an adsorption assembly, the tops of the filter tower and the adsorption tower are both installed with a detachable top cover, and the top cover is locked and fixed to the tops of the filter tower and the adsorption tower through a positioning assembly.

[0005] Preferably, the filter assembly includes support mesh plate 1 and support mesh plate 2 arranged in the inner cavity of the filter tower, a cellulose filler layer is arranged between the support mesh plate 1 and the support mesh plate 2, and an activated carbon filler layer is arranged on the top of the support mesh plate 2.

[0006] Preferably, the adsorption assembly includes a support mesh plate three and a support mesh plate four arranged in the inner cavity of the adsorption tower, a molecular sieve filler layer is arranged between the support mesh plate three and the support mesh plate four, and an alumina filler layer is arranged on the top of the support mesh plate four.

[0007] Preferably, the inner cavities of the filtration tower and the adsorption tower are respectively provided with a support positioning ring 1 and a support positioning ring 2, the top of the support positioning ring 1 is fitted with the bottom of the support mesh plate 1, and the top of the support positioning ring 2 is fitted with the bottom of the support mesh plate 3.

[0008] Preferably, the positioning assembly includes a threaded positioning ring fixedly mounted on the top of the top cover, the tops of the filtration tower and the adsorption tower are both provided with threaded positioning grooves adapted to the threaded positioning rings, and the surface of the threaded positioning rings is threadedly connected to the inner wall of the threaded positioning grooves.

[0009] Preferably, the connecting assembly includes a tube body connected to the top cover surface of the adsorption tower, and a plurality of gas collecting hoods are fixedly installed on the top of the catalytic incinerator, and the top of the gas collecting hood is connected to the bottom of the tube body through a branch pipe.

[0010] Preferably, the bottom of one side of the filter tower is connected to an air inlet pipe, and one side of the catalytic incinerator is connected to a purified exhaust pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model uses a filter tower, an adsorption tower and a catalytic incinerator in coordination. The flue gas generated by arsenic smelting is first purified by the filter tower, and then adsorbed by the adsorption tower. Finally, the catalytic incinerator burns the flue gas after the filtration and adsorption treatment at high temperature, thereby effectively purifying the flue gas generated by arsenic smelting. The top covers of the filter tower and the adsorption tower in the device are both detachable, so that the user can easily replace the fillers inside them. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model purification exhaust pipe;

[0015] Figure 3 It is a schematic diagram of the structure inside the filter tower and adsorption tower of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the positioning component of the utility model.

[0017] In the figure: 1, bottom plate; 2, filter tower; 3, adsorption tower; 4, catalytic incinerator; 5, connecting pipe; 6, top cover; 7, support mesh plate one; 8, support mesh plate two; 9, cellulose filler layer; 10, activated carbon filler layer; 11, support mesh plate three; 12, support mesh plate four; 13, molecular sieve filler layer; 14, alumina filler layer; 15, support positioning ring one; 16, support positioning ring two; 17, threaded positioning ring; 18, threaded positioning groove; 19, pipe body; 20, gas collecting hood; 21, branch pipe; 22, air inlet pipe; 23, purified exhaust pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4 The utility model provides a fume recovery and purification device for arsenic smelting, comprising a bottom plate 1, a filter tower 2, an adsorption tower 3 and a catalytic incinerator 4 are installed on the top of the bottom plate 1, an air intake pipe 22 is connected to the bottom of one side of the filter tower 2, and a purified exhaust pipe 23 is connected to one side of the catalytic incinerator 4. The filter tower 2 and the adsorption tower 3 are connected together through a connecting pipe 5, and the adsorption tower 3 and the catalytic incinerator 4 are connected together through a connecting assembly, and the connecting assembly includes a pipe body 19 connected to the surface of a top cover 6 at the top of the adsorption tower 3, and a plurality of groups of gas collecting hoods 20 are fixedly installed on the top of the catalytic incinerator 4, and the top of the gas collecting hood 20 is connected to the bottom of the pipe body 19 through a branch pipe 21, and the inner cavities of the filter tower 2 and the adsorption tower 3 are respectively installed with a filter assembly and an adsorption assembly.

[0020] In this embodiment, the flue gas generated by the smelting of tantalum needs to go through three processing steps of filtration, adsorption and combustion purification. First, the flue gas enters the filter tower 2 through the air inlet pipe 22, and is preliminarily filtered by the filter component. The filtered flue gas will enter the adsorption tower 3 through the connecting pipe 5, and the adsorption component will adsorb the flue gas. The flue gas after adsorption and filtration treatment finally enters the catalytic incinerator 4 through the connecting component for combustion purification. The flue gas purified through the three steps will be discharged to the outside through the purified exhaust pipe 23.

[0021] Specifically, the above-mentioned filter assembly includes a support mesh plate 1 7 and a support mesh plate 2 8 arranged in the inner cavity of the filter tower 2, a cellulose filler layer 9 is arranged between the support mesh plate 1 7 and the support mesh plate 2 8, and an activated carbon filler layer 10 is arranged on the top of the support mesh plate 2 8. Through the coordinated use of the support mesh plate 1 7 and the support mesh plate 2 8, the cellulose filler layer 9 can be fixed therebetween, and the activated carbon filler layer 10 is flatly laid on the surface of the support mesh plate 2 8, and the flue gas will be filtered when passing through the cellulose filler layer 9 and the activated carbon filler layer 10.

[0022] Specifically, the above-mentioned adsorption component includes a support mesh plate three 11 and a support mesh plate four 12 set in the inner cavity of the adsorption tower 3, a molecular sieve packing layer 13 is set between the support mesh plate three 11 and the support mesh plate four 12, and an alumina packing layer 14 is set on the top of the support mesh plate four 12. Through the coordinated use of the support mesh plate three 11 and the support mesh plate four 12, the molecular sieve packing layer 13 can be fixed therebetween, and the alumina packing layer 14 will be laid flat on the top of the support mesh plate four 12, and the flue gas will be adsorbed and purified when passing through the molecular sieve packing layer 13 and the alumina packing layer 14.

[0023] Among them, the inner cavities of the filter tower 2 and the adsorption tower 3 are respectively provided with a support positioning ring 15 and a support positioning ring 2 16, the top of the support positioning ring 15 is in contact with the bottom of the support mesh plate 1 7, and the top of the support positioning ring 2 16 is in contact with the bottom of the support mesh plate 3 11. Through the setting of the support positioning ring 15 and the support positioning ring 2 16, the filter component and the adsorption component can be supported and fixed in the inner cavities of the filter tower 2 and the adsorption tower 3 respectively.

[0024] Preferably, a removable top cover 6 is installed on the top of the filter tower 2 and the adsorption tower 3, and the top cover 6 is locked and fixed to the top of the filter tower 2 and the adsorption tower 3 by a positioning assembly. The positioning assembly includes a threaded positioning ring 17 fixedly installed on the top of the top cover 6, and a threaded positioning groove 18 compatible with the threaded positioning ring 17 is opened on the top of the filter tower 2 and the adsorption tower 3, and the surface of the threaded positioning ring 17 is threadedly connected to the inner wall of the threaded positioning groove 18.

[0025] In this embodiment, the top covers 6 of the filter tower 2 and the adsorption tower 3 are both detachable. The user can remove the top cover 6 to take out and replace the fillers in the filter tower 2 and the adsorption tower 3. After the replacement is completed, the user can cover the top cover 6 tightly on the top of the filter tower 2 and the adsorption tower 3, and screw the top cover 6. The rotation of the top cover 6 will drive the threaded positioning ring 17 to be tightened in the inner cavity of the threaded positioning groove 18, thereby tightening and fixing the top cover 6 on the top of the filter tower 2 and the adsorption tower 3.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fume recovery and purification device for tantalum smelting, comprising a bottom plate (1), characterized in that: A filter tower (2), an adsorption tower (3) and a catalytic incinerator (4) are installed on the top of the base plate (1); the filter tower (2) and the adsorption tower (3) are connected together via a connecting pipe (5); the adsorption tower (3) and the catalytic incinerator (4) are connected together via a connecting assembly; the inner cavities of the filter tower (2) and the adsorption tower (3) are respectively installed with a filter assembly and an adsorption assembly; the tops of the filter tower (2) and the adsorption tower (3) are both installed with a detachable top cover (6); the top cover (6) is locked and fixed to the tops of the filter tower (2) and the adsorption tower (3) via a positioning assembly.

2. The device for recovering and purifying flue gas for tantalum smelting according to claim 1 is characterized in that: The filter assembly comprises a support mesh plate 1 (7) and a support mesh plate 2 (8) arranged in the inner cavity of a filter tower (2); a cellulose filler layer (9) is arranged between the support mesh plate 1 (7) and the support mesh plate 2 (8); and an activated carbon filler layer (10) is arranged on the top of the support mesh plate 2 (8).

3. The device for recovering and purifying flue gas for tantalum smelting according to claim 2 is characterized in that: The adsorption assembly comprises a supporting mesh plate three (11) and a supporting mesh plate four (12) arranged in the inner cavity of the adsorption tower (3), a molecular sieve filler layer (13) is arranged between the supporting mesh plate three (11) and the supporting mesh plate four (12), and an alumina filler layer (14) is arranged on the top of the supporting mesh plate four (12).

4. The device for recovering and purifying flue gas for tantalum smelting according to claim 3 is characterized in that: The inner cavities of the filtration tower (2) and the adsorption tower (3) are respectively provided with a support positioning ring 1 (15) and a support positioning ring 2 (16); the top of the support positioning ring 1 (15) is in contact with the bottom of the support mesh plate 1 (7); and the top of the support positioning ring 2 (16) is in contact with the bottom of the support mesh plate 3 (11).

5. The device for recovering and purifying flue gas for bismuth smelting according to claim 1 is characterized in that: The positioning assembly comprises a threaded positioning ring (17) fixedly mounted on the top of the top cover (6); the tops of the filtration tower (2) and the adsorption tower (3) are both provided with threaded positioning grooves (18) adapted to the threaded positioning ring (17); the surface of the threaded positioning ring (17) is threadedly connected to the inner wall of the threaded positioning groove (18).

6. The device for recovering and purifying flue gas for tantalum smelting according to claim 1 is characterized in that: The connection assembly comprises a tube body (19) connected to the surface of a top cover (6) at the top of the adsorption tower (3); a plurality of groups of gas collecting hoods (20) are fixedly installed on the top of the catalytic incinerator (4); the top of the gas collecting hood (20) is connected to the bottom of the tube body (19) through a branch pipe (21).

7. The device for recovering and purifying flue gas for tantalum smelting according to claim 1 is characterized in that: The bottom of one side of the filtering tower (2) is connected to an air inlet pipe (22), and one side of the catalytic incinerator (4) is connected to a purified exhaust pipe (23).

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