A combined device for recovering metals from zinc hydrometallurgy residues

Abstract

The application discloses a combined device for recovering metal from zinc hydrometallurgy residue, and relates to the technical field of zinc hydrometallurgy.The combined device comprises a mixing box, four metering cavities which are uniformly distributed along the circumference are arranged at the upper end of the interior of the mixing box, a mixing cavity is arranged at the lower end of the interior of the mixing box, the metering cavities are communicated with the mixing cavity, and a metering assembly is arranged in each of the four metering cavities; a moving seat is used for moving the mixing box on the top of a smelting box, and the mixed residue in the mixing box is uniformly distributed into the smelting box; and the smelting box is arranged below the side of the mixing box, and three smelting grooves which are vertically and parallelly distributed are arranged in the interior of the smelting box.The zinc hydrometallurgy residue is crushed and uniformly mixed with an additive, is uniformly distributed into the smelting grooves, is smelted through the smelting box, and is side-blown through a side-blowing assembly, so that the problems of low metal recovery efficiency and poor recovery effect of the existing zinc hydrometallurgy residue are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of zinc hydrometallurgy, in particular to a combined device for recovering metals from zinc hydrometallurgy residues. BACKGROUND

[0002] Zinc hydrometallurgy refers to a process of dissolving zinc calcine or other zinc sulfide materials and zinc in zinc sulfide concentrate in an aqueous solution to extract metallic zinc or zinc compounds, which is the main method of modern zinc smelting, consisting of three major links of zinc leaching, purification from zinc acid solution, and zinc electrolytic deposition.

[0003] A large amount of leaching residue is generated in the process of zinc hydrometallurgy, which is hazardous waste. If the leaching residue is not treated, it will cause great environmental pressure to the enterprise, and the leaching residue contains not only zinc but also other valuable metals such as lead, copper, precious metals gold and silver, as well as most impurity elements such as silicon, iron, calcium, magnesium, etc. Therefore, zinc and valuable metals must be recovered from zinc leaching residue. There are various methods for recovering metals from zinc hydrometallurgy residues, which can be acid leaching, added to a rotary kiln for processing, or side-blown smelting residue processing.

[0004] After searching, the publication number CN111457722A, published on July 28, 2020, discloses a side-blown submerged combustion bath smelting system for hazardous waste disposal, which comprises a furnace body, a plurality of combustion lances, a plurality of oxygen-enriched lances, a combustion air supply system and an emergency gas supply system. The plurality of combustion lances are double-channel lances, one of the double channels is a first combustion air channel and the other is a fuel channel, and the plurality of combustion lances are installed on the side wall of the furnace body. The plurality of oxygen-enriched lances are single-channel lances, the single channel is a second combustion air channel, and the plurality of oxygen-enriched lances are installed on the side wall of the furnace body in a spaced manner. The first combustion air supply system of the combustion air supply system is in communication with the plurality of first combustion air channels, and the second combustion air supply system is in communication with the plurality of second combustion air channels. The emergency gas supply system is connected to the plurality of combustion lances. The present application effectively reduces the number of gas supply lances during furnace insulation and power failure accidents, greatly reduces the cost, has good safety and low energy consumption.

[0005] The patent has the following shortcomings:

[0006] 1. The contact between the side-blown gas and the material in the side-blown smelting pool is not complete enough, which affects the smelting effect of the material;

[0007] 2. The material distribution of the side-blown smelting pool is not convenient, and it is difficult to uniformly distribute a large amount of wet zinc hydrometallurgy residue to be treated into the smelting pool, and the processing efficiency is poor.

[0008] Therefore, the existing zinc hydrometallurgy residue metal recovery device cannot meet the needs in actual use, and there is an urgent need for improved technology on the market to solve the above problems. SUMMARY

[0009] The present application aims to provide a combined device for recovering metal from zinc hydrometallurgy residue, which is crushed and uniformly mixed with an additive, then uniformly distributed into multiple smelting tanks, smelted by a smelting box, and side blown by a side blowing assembly, solving the problems of low efficiency and poor recovery effect of the existing zinc hydrometallurgy residue recovery.

[0010] To solve the above technical problems, the present application is realized by the following technical scheme:

[0011] The present application is a combined device for recovering metal from zinc hydrometallurgy residue, comprising a mixing box, four metering cavities uniformly distributed along the circumference are arranged at the upper end of the interior of the mixing box, a mixing cavity is arranged at the lower end of the interior of the mixing box, the metering cavities are communicated with the mixing cavity, and metering assemblies are arranged in the four metering cavities; a moving seat is used to drive the mixing box to move on the top of a smelting box, and the mixed residue in the mixing box is uniformly distributed into the smelting box; the smelting box is arranged below the side of the mixing box, and three smelting tanks are arranged in the interior of the smelting box and distributed in parallel along the vertical direction, the three smelting tanks are horizontally moved by respective air cylinders; and the side blowing assembly is arranged in multiple groups and uniformly distributed on both sides of the smelting box.

[0012] Further, four feed hoppers uniformly distributed along the circumference are arranged at the top of the mixing box, the feed hoppers are communicated with the metering cavities; a stirrer is arranged in the interior of the mixing cavity, the stirrer is fixedly connected with the output shaft of a stirring motor, and the stirring motor is fixed at the top center of the mixing box; and an electric control valve is arranged on the bottom discharge pipe of the mixing box.

[0013] Further, the metering assembly comprises a crushing roller group, a metering cylinder and a weighing sensor; the crushing roller group is arranged directly above the metering cylinder, a ring-shaped weighing sensor is fixedly sleeved at the lower end of the metering cylinder, and the weighing sensor is fixed on the inner wall of the metering cavity; a discharge hopper is arranged at the bottom of the metering cylinder, the discharge hopper is fixedly connected with the movable end of an electric push rod, the rod body of the electric push rod is fixed at the bottom of a cross support frame, and the cross support frame is fixed at the top of the metering cylinder. The top of the cross support frame is conical to avoid the crushed residue from accumulating thereon.

[0014] Further, the moving seat comprises a bottom plate and four traveling wheels arranged at the bottom of the bottom plate; a traveling motor is arranged at the top of the bottom plate, and the traveling motor is used to drive the traveling wheels to rotate.

[0015] Further, support tables are fixed at both sides of the upper end of the smelting box, rails are fixed at the top of the support tables, and the rails are matched with the traveling wheels; the length of the rail is greater than the length of the smelting box, and both ends of the rail extend to the outside of the smelting box.

[0016] Further, the inside of the smelting box is provided with three layers of support partitions distributed at equal intervals for supporting the smelting tank; and the two sides of the smelting box are provided with strip-shaped through holes for the smelting tank to pass through.

[0017] Further, the smelting tank comprises an intermediate tank body and L-shaped plates fixed to the two sides of the intermediate tank body; the top horizontal plate of the L-shaped plate is provided with a hollow structure; and the L-shaped plate on one side is fixedly connected with the movable end of the air cylinder, and the cylinder body of the air cylinder is fixed on the cylinder body support frame.

[0018] Further, the side blowing assembly comprises a side blowing main pipe and a plurality of side blowing branch pipes distributed at equal intervals on the side of the side blowing main pipe; the side blowing branch pipes are inserted into the smelting box, and the outlet ends thereof extend to above the smelting tank; and the end of the side blowing main pipe is provided with a flange connecting piece for being connected with an external pipeline.

[0019] The present application has the following beneficial effects:

[0020] 1. By means of the mixing box, the smelting box and the side blowing assembly, the wet zinc slag is crushed, mixed with the additives, and then uniformly distributed into the smelting tank, smelted by the smelting box, and side blown by the side blowing assembly, so that the recyclable metals in the wet zinc slag can be thoroughly taken out, and a large amount of wet zinc slag can be processed at one time, and the processing efficiency is greatly improved.

[0021] 2. By means of the metering assembly, the mixing box has the function of metering, and the wet zinc slag and various additives can be added into the mixing box in a quantitative manner, so that the subsequent smelting effect can be optimized.

[0022] 3. By means of the moving seat, the mixed slag in the mixing box can be uniformly distributed into the smelting tank, and by means of the three layers of smelting tanks, the side blowing effect of the side blowing assembly is better, the mixed slag can be maximally contacted with oxygen, and the smelting effect is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings:

[0024] Figure 1 is a three-dimensional schematic view of the overall structure Figure 1 ;

[0025] Figure 2 is a three-dimensional schematic view of the overall structure Figure 2 ;

[0026] Figure 3 It is a schematic diagram of the mobile seat structure;

[0027] Figure 4 It is a schematic diagram of the internal structure of the mixing box;

[0028] Figure 5 It is a schematic diagram of the structure of the metering assembly;

[0029] Figure 6 It is a front view of the smelting box;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the smelting box;

[0031] Figure 8 It is a schematic diagram of the structure of the smelting tank;

[0032] Figure 9 It is a schematic diagram of the structure of the side blowing assembly;

[0033] In the drawings, the components represented by each reference numeral are listed as follows:

[0034] 1, mixing box; 2, metering assembly; 3, mobile seat; 4, smelting box; 5, smelting tank; 6, side blowing assembly; 7, air cylinder; 11, feed hopper; 12, metering cavity; 13, mixing cavity; 14, stirrer; 15, stirring motor; 16, electric control valve; 21, crushing roller group; 22, metering cylinder; 23, weighing sensor; 24, discharge hopper; 25, electric push rod; 26, cross support frame; 31, bottom plate; 32, walking wheel; 33, walking motor; 41, support table; 42, track; 43, support partition; 44, strip-shaped through hole; 51, intermediate tank body; 52, L-shaped plate; 61, side blowing main pipe; 62, side blowing branch pipe; 63, flange connecting piece; 71, cylinder body support frame. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0036] Please refer to Figures 1-2 , 4, the present application is a kind of from wet zinc slag recovery metal combination device, including, mixing box 1, the upper end of the inside of mixing box 1 is provided with four circumferentially uniform distribution metering cavity 12, the lower end of the inside of mixing box 1 is provided with mixing cavity 13, metering cavity 12 is communicated with mixing cavity 13, four metering cavities 12 are provided with metering assembly 2 in;The top of mixing box 1 is provided with four circumferentially uniform distribution feed hopper 11, feed hopper 11 is communicated with metering cavity 12;The inside of mixing cavity 13 is provided with stirrer 14, stirrer 14 is fixedly connected with the output shaft of stirring motor 15, stirring motor 15 is fixed at the top center of mixing box 1;The bottom discharge pipe of mixing box 1 is provided with electric control valve 16.

[0037] As shown in Figures 4-5 The metering assembly 2 includes a crushing roller set 21, a metering cylinder 22, and a weighing sensor 23; the crushing roller set 21 is arranged directly above the metering cylinder 22, the lower end of the metering cylinder 22 is fixedly sleeved with a ring-shaped weighing sensor 23, the weighing sensor 23 is fixed on the inner wall of the metering cavity 12; the bottom of the metering cylinder 22 is provided with a lower hopper 24, the lower hopper 24 is fixedly connected with the movable end of an electric push rod 25, the rod body of the electric push rod 25 is fixed at the bottom of a cross support frame 26, and the cross support frame 26 is fixed at the top of the metering cylinder 22.

[0038] The arrangement of the metering assembly 2 enables the mixing box 1 to have a metering function, so that the wet zinc residue and various additives can be added into the mixing box 1 in a quantitative manner, thereby ensuring that the subsequent smelting effect can reach the best; in specific use, the weight of the material in the metering cylinder 22 is accurately weighed by the weighing sensor 23, and then the electric push rod 25 is controlled to drive the lower hopper 24 to descend, at which time the material falls into the mixing cavity 13.

[0039] As shown in Figures 1-3 The moving seat 3 is used to drive the mixing box 1 to move on the top of the smelting box 4, so that the mixed residue in the mixing box 1 can be evenly distributed into the smelting box 4; the moving seat 3 includes a bottom plate 31 and four walking wheels 32 arranged at the bottom of the bottom plate 31; the top of the bottom plate 31 is provided with a walking motor 33 for driving the walking wheels 32 to rotate.

[0040] As shown in Figures 1-2 The smelting box 4 is arranged below the side of the mixing box 1, and the inside of the smelting box 4 is provided with three smelting tanks 5 arranged in parallel along the vertical direction, and the three smelting tanks 5 are horizontally movable through respective cylinders 7; the upper ends of the smelting box 4 are fixed with support tables 41 on both sides, the top of each support table 41 is fixed with a track 42, and the track 42 cooperates with the walking wheels 32; the length of the track 42 is greater than the length of the smelting box 4, and the two ends of the track 42 extend to the outside of the smelting box 4; the inside of the smelting box 4 is provided with three layers of support partitions 43 arranged at equal intervals for supporting the smelting tanks 5; and the two sides of the smelting box 4 are provided with strip-shaped through holes 44 for the smelting tanks 5 to pass through.

[0041] As shown in Figures 1-2 The smelting tank 5 includes an intermediate tank body 51 and L-shaped plates 52 fixed on both sides of the intermediate tank body 51; the top horizontal plate of each L-shaped plate 52 is provided with a hollow structure; and one side of the L-shaped plate 52 is fixedly connected with the movable end of the cylinder 7, and the cylinder body of the cylinder 7 is fixed on a cylinder body support frame 71.

[0042] The three-layer smelting tank 5 is arranged so that the side blowing effect of the side blowing assembly 6 is better, the mixed slag can be maximally contacted with oxygen, and the smelting effect is greatly improved; the top horizontal plate of the L-shaped plate 52 and the support partition plate 43 are both provided with holes for oxygen to pass through, so that oxygen can fill the entire smelting box 4.

[0043] wherein as shown in Figures 1-2 , 6, 9, the side blowing assembly 6 is provided with multiple groups and is uniformly distributed on both sides of the smelting box 4; the side blowing assembly 6 includes a side blowing main pipe 61 and multiple side blowing branch pipes 62 which are evenly distributed on the side of the side blowing main pipe 61; the side blowing branch pipe 62 is inserted into the smelting box 4, and the outlet end thereof extends to the upper part of the smelting tank 5; the end of the side blowing main pipe 61 is provided with a flange connecting piece 63 which is connected with an external pipeline through the flange connecting piece 63.

[0044] The use operation of the embodiment is as follows:

[0045] S1: The zinc hydrometallurgy slag to be recycled is added from the feed hopper 11 into the mixing box 1, is crushed by the crushing roller group 21 first, is metered by the metering cylinder 22, and is put into the mixing cavity 13 after reaching the required weight;

[0046] S2: According to the same steps, multiple additives are quantitatively added to the mixing cavity 13, and then the materials are uniformly mixed by the stirrer 14;

[0047] S3: The smelting tank 5 is driven by the air cylinder 7 to extend out of the smelting box 4, and the mixing box 1 is driven by the moving seat 3 to move along the track 42, so that the mixed slag in the mixing box 1 is uniformly distributed into the smelting tank 5;

[0048] S4: When the three smelting tanks 5 in the smelting box 4 are uniformly distributed with the mixed slag, smelting is started, and the side blowing assembly 6 is used for side blowing during the smelting process.

[0049] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement of the technical solutions recorded in the foregoing embodiments, and any modification, equivalent replacement, improvement, all belong to the protection scope of the present application.

Claims

1. A combined apparatus for recovering metals from a zinc hydrometallurgy residue, characterized in that: The utility model relates to a mixed box (1) is provided with four metering cavities (12) on the upper end of the inside of mixed box (1), and the lower end of the inside of mixed box (1) is provided with mixing cavity (13), and metering cavity (12) is connected with mixing cavity (13), and four metering cavities (12) are provided with metering assembly (2) in. The utility model relates to a mobile seat (3) is used for driving mixed box (1) moves on the top of smelting box (4), and the mixed slag in mixed box (1) is evenly distributed to smelting box (4) in. The utility model relates to a smelting box (4) is arranged below the side of mixed box (1), and the inside of smelting box (4) is provided with three smelting tanks (5) along the vertical direction and parallel distribution, and three smelting tanks (5) realize horizontal movement through respective air cylinder (7). The utility model relates to a side blowing assembly (6) is provided with multiple groups and is evenly distributed on the both sides of smelting box (4). The utility model relates to a mobile seat (3) includes bottom plate (31) and four walking wheels (32) arranged in the bottom of bottom plate (31), and the top of bottom plate (31) is provided with walking motor (33), and walking motor (33) is used for driving walking wheel (32) rotation, and the both sides of the upper end of smelting box (4) are fixed with support table (41), and the top of support table (41) is fixed with track (42), and track (42) is matched with walking wheel (32), and the length of track (42) is greater than the length of smelting box (4), and both ends of track (42) extend to the outside of smelting box (4). The utility model relates to a smelting box (4) is provided with three layers of support partition plates (43) that are equally spaced and are arranged in the inside, and are used for supporting smelting tank (5), and the both sides of smelting box (4) are provided with strip-shaped through holes (44) for smelting tank (5) to pass through, and smelting tank (5) includes middle tank body (51) and L-shaped plate (52) fixed on the both sides of middle tank body (51), and the top horizontal plate of L-shaped plate (52) is provided with hollow structure, and the movable end of air cylinder (7) is fixedly connected with the L-shaped plate (52) on one side, and the cylinder body of air cylinder (7) is fixed on cylinder body support frame (71).

2. A combined device for recovering metals from a zinc hydrometallurgy residue according to claim 1, characterized in that, The utility model relates to a mixed box (1) is provided with four feeding hoppers (11) that are evenly distributed along the circumference on the top, and feeding hopper (11) is connected with metering cavity (12). The utility model relates to a mixing cavity (13) is provided with stirrer (14) in the inside, and stirrer (14) is fixedly connected with the output shaft of stirring motor (15), and stirring motor (15) is fixed at the top center of mixed box (1). The utility model relates to a mixed box (1) is provided with electric control valve (16) on the bottom discharge pipe.

3. A combined device for recovering metals from a zinc hydrometallurgy residue according to claim 1, characterized in that, The utility model relates to a metering assembly (2) includes crushing roller group (21), metering cylinder (22) and weighing sensor (23). Crushing roller group (21) is arranged directly above metering cylinder (22), and the lower end of metering cylinder (22) is fixedly provided with annular weighing sensor (23), and weighing sensor (23) is fixed on the inner wall of metering cavity (12). The bottom of the metering cylinder (22) is provided with a lower hopper (24), the lower hopper (24) is fixedly connected with the movable end of an electric push rod (25), the rod body of the electric push rod (25) is fixed at the bottom of a cross support frame (26), and the cross support frame (26) is fixed at the top of the metering cylinder (22).

4. A combined apparatus for recovering metals from a zinc hydrometallurgy residue according to claim 1, characterized in that, The side blowing assembly (6) comprises a side blowing main pipe (61) and a plurality of side blowing branch pipes (62) which are arranged on the side of the side blowing main pipe (61) and are distributed at equal intervals. The side blowing branch pipe (62) is inserted into the smelting box (4), and the outlet end thereof extends to the position above the smelting tank (5); and the end of the side blowing main pipe (61) is provided with a flange connecting piece (63) which is connected with an external pipeline.

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