Filtering device, buffering equipment and carbon leaching gold smelting system

Abstract

The utility model relates to a filtering device, buffering equipment and a carbon leaching gold smelting system. Wherein the filtering device comprises a fixed assembly, a movable assembly and a first fastener, the fixed assembly comprises a fixed plate, a connecting plate and a material passing pipe, the fixed plate is used for being arranged on the inner wall surface of the buffer equipment, the connecting plate is arranged on the fixed plate, the material passing pipe is arranged on the connecting plate, and the material passing pipe is used for being arranged at a feeding port of the buffer equipment and fixedly connected with the buffer equipment; the movable assembly comprises m filter plates and a plurality of second fasteners, the movable assembly, the connecting plate and the fixed plate are connected through the first fasteners to form an n-face body, and n = m + 2. The filtering device disclosed by the utility model integrally adopts hard linkage, can reduce the condition that activated carbon particles escape, improves the solid-liquid separation effect, and is divided according to the movable component and the fixed component, so that the mounting space is saved, and the adaptability to different spaces and specifications of the buffer tank is improved; the hoisting construction difficulty and the replacement and maintenance cost are reduced, and the practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon in leaching gold smelting technical field, concretely relates to a filter equipment, buffer equipment and carbon in leaching gold smelting system. BACKGROUND

[0002] Carbon in leaching gold smelting technology includes carbon in leaching adsorption process, and in carbon in leaching adsorption process, the ore pulp containing activated carbon particles flows to the next stage after reacting fully in the equipment, so it is required to use solid-liquid separation device to block the granular activated carbon. In the related technology, the solid-liquid separation device is installed at the outlet of the side wall of the carbon in leaching equipment tank to isolate the activated carbon particles mixed in the ore pulp flowing from outside to inside (with the inside of the solid-liquid separation device as the inside) and prevent them from flowing into the next stage buffer equipment through the material outlet. However, since the solid-liquid separation device needs to be cleaned or replaced frequently, the solid-liquid separation device and the discharge pipe of the carbon in leaching equipment are connected in a weak connection mode without bolts, which causes the granular activated carbon to escape at the connection and flow to the buffer equipment, resulting in low solid-liquid separation precision and loss of activated carbon. Therefore, related devices need to be provided in the buffer equipment to block or separate the solid activated carbon particles escaping in the ore pulp to achieve the required gold recovery rate. SUMMARY

[0003] The utility model aims at at least one of the technical problems in the related art to some extent.

[0004] To this end, the embodiment of the utility model provides a filter equipment, which adopts hard link as a whole, can reduce the escape of activated carbon particles, improve the solid-liquid separation effect, and the movable assembly is detachable, simple in structure, easy to process and manufacture, saves installation space, improves the adaptability to different spaces and specifications of the buffer tank, reduces the hoisting construction difficulty and replacement and maintenance cost, and is good in practicability.

[0005] The embodiment of the utility model provides a buffer equipment.

[0006] The embodiment of the utility model provides a carbon in leaching gold smelting system.

[0007] The filter equipment according to the embodiment of the utility model comprises a fixed assembly, a movable assembly and a first fastener, the fixed assembly comprises a fixed plate, a connecting plate and a material pipe, the fixed plate is arranged on the inner wall surface of the buffer equipment, the connecting plate is arranged on the fixed plate, and the material pipe is arranged on the connecting plate and fixedly connected with the buffer equipment and arranged at the feed inlet of the buffer equipment; the movable assembly comprises m filter plates and a plurality of second fasteners, the m filter plates are connected through the second fasteners, the movable assembly, the connecting plate and the fixed plate are connected through the first fastener to form an n-face body, and n=m+2.

[0008] The filtering device of the embodiment of the utility model, whole adopts hard link, can reduce active carbon granule to escape the situation, improve solid-liquid separation effect, and, will filter device according to movable assembly and fixed assembly and divide, saved installation space, improved the adaptability of buffer tank different space, specification, reduced hoisting construction difficulty and replacement maintenance cost, good practicality.

[0009] In some embodiments, the fixed assembly further comprises positioning columns, the positioning columns are arranged on the fixed plate, the positioning columns comprise first positioning plates and second positioning plates, the first positioning plates and the second positioning plates are connected, the first positioning plates are opposite to the connecting plates, the first positioning plates and the connecting plates are provided with the filter plates therebetween, the second positioning plates of adjacent two positioning columns are opposite, and the second positioning plates of the opposite two second positioning plates are provided with the filter plates therebetween.

[0010] In some embodiments, first connecting holes are arranged on the first positioning plates and the second positioning plates, edges of the filter plates are provided with connecting side plates, second connecting holes are arranged on the connecting side plates, and the first positioning plates and the second positioning plates are connected with adjacent connecting side plates by being arranged on the first connecting holes and the second connecting holes through the first fasteners.

[0011] In some embodiments, m is four, and the fixed plate is perpendicular to the connecting plate.

[0012] In some embodiments, the fixed plate is located on a side of the material pipe away from a hoisting hole of the buffer device.

[0013] In some embodiments, the fixed assembly further comprises a support, one end of the support is connected to the fixed plate, and the other end of the support is used for connecting an inner wall surface of the buffer device.

[0014] In some embodiments, the fixed assembly further comprises a limiting block, the limiting block is arranged on the fixed plate, the limiting block abuts against the filter plate, and the limiting block is located downstream of the filter plate in a fluid flow direction.

[0015] In some embodiments, the filter plate comprises a mounting frame, a support strip, a wire mesh, a lifting lug and a pressing strip, the mounting frame is provided with the lifting lug, the wire mesh is laid on one side of the mounting frame in a thickness direction of the mounting frame, the pressing strip is arranged on the wire mesh and connected to the mounting frame, the pressing strip is located upstream of the mounting frame in the fluid flow direction, and the mounting frame is provided with a plurality of support strips on the other side thereof in the thickness direction, and two ends of the support strips are connected to opposite sides of the mounting frame respectively.

[0016] The utility model embodiment's buffer equipment, including buffer jar and filter device, the buffer jar has feed port, the fixed plate of filter device is established on the inner wall surface of buffer jar, the material pipe of filter device is established in the feed port of buffer equipment and with buffer jar fixed connection.

[0017] The buffer equipment of the utility model embodiment has good filtering performance on activated carbon particles, and can improve the solid-liquid separation effect of the ore pulp.

[0018] The carbon-in-leach gold smelting system of the utility model embodiment comprises a carbon-in-leach device and a buffer equipment.

[0019] The carbon-in-leach gold smelting system of the utility model embodiment has high recovery rate of activated carbon particles, good solid-liquid separation effect and high gold recovery rate. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the buffer equipment of the utility model embodiment;

[0021] Figure 2 It is Figure 1 schematic view of the utility model embodiment;

[0022] Figure 3 It is the structure schematic diagram of the fixed assembly of the utility model embodiment one;

[0023] Figure 4 It is the structure schematic diagram of the fixed assembly of the utility model embodiment two;

[0024] Figure 5 It is the structure schematic diagram of the filter plate of the utility model embodiment;

[0025] Reference signs:

[0026] Buffer equipment 1000;

[0027] Filter device 100;Fixed plate 1, connecting plate 2, material pipe 3, filter plate 4, installation frame 41, support strip 42, silk screen 43, lug 44, pressing strip 45, connecting side plate 46, positioning column 5, first positioning plate 51, second positioning plate 52, support piece 6, limit block 7;Buffer jar 200, hoisting hole 2001. DETAILED DESCRIPTION

[0028] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0029] Below, referring to the drawings Figures 1 to 5The utility model discloses filter equipment 100, buffer equipment 1000 and carbon in leaching gold smelting system of detailed description embodiment of the utility model.

[0030] The utility model discloses carbon in leaching gold smelting system including carbon in leaching equipment (not shown in drawing) and buffer equipment 1000, and the outlet of carbon in leaching equipment communicates with the feed inlet of buffer equipment 1000.

[0031] The utility model discloses buffer equipment 1000 including buffer tank 200 and filter equipment 100, and buffer tank 200 has feed inlet and hoist hole 2001.

[0032] The utility model discloses filter equipment 100 including fixed assembly, movable assembly and first fastener, and fixed assembly includes fixed plate 1, connecting plate 2 and material pipe 3, and fixed plate 1 is established on the inner wall surface of buffer tank 200 of buffer equipment 1000, is equipped with connecting plate 2 on fixed plate 1, and material pipe 3 is established on connecting plate 2, and material pipe 3 is equipped in the feed inlet of buffer tank 200 and is fixedly connected with buffer tank 200 of buffer equipment 1000, and movable assembly includes m filter plate 4 and a plurality of second fastener, and m filter plate 4 is connected through second fastener, and movable assembly, connecting plate 2 and fixed plate 1 are connected through fastener and form n polyhedron, and n=m+2.

[0033] When installing filter equipment 100, fixed assembly is installed to buffer tank 200, and movable assembly is assembled outside buffer tank 200, and m filter plate 4 is fixedly connected through second fastener and is assembled in turn, and then movable assembly is hoisted to buffer tank 200 through hoist hole 2001 of buffer tank 200, and the different filter plate 4 of movable assembly is docked with connecting plate 2 and fixed plate 1 of fixed assembly respectively, and then first fastener is used to fasten and connect filter plate 4 and connecting plate 2, filter plate 4 and fixed plate 1, and the hard link of movable assembly and fixed assembly is completed.

[0034] The utility model discloses carbon in leaching gold smelting system under the operating state, and the ore pulp flows to buffer equipment 100 after being fully reacted in carbon in leaching equipment, and in the carbon in leaching equipment, the active carbon particles escaping from the carbon in leaching equipment flow to buffer tank 200 with the ore pulp.

[0035] Since the solid-liquid separation device is arranged in the carbon in leaching equipment, the amount of active carbon particles escaping from the solid-liquid separation device is less than the amount of active carbon particles blocked by the solid-liquid separation device, so the maintenance or replacement frequency of the filter equipment 100 of the utility model embodiment is much smaller than the maintenance or replacement frequency of the solid-liquid separation device in the carbon in leaching equipment.

[0036] Specifically, the two buffer devices 1000 are arranged in parallel at the outlet of the carbon-in-pulp equipment, that is, the inlets of the material pipes 3 of the two buffer devices 1000 are connected with the outlet of the carbon-in-pulp equipment, in the working state, the outlet of the carbon-in-pulp equipment is communicated with the first buffer device 1000 to perform normal work, the outlet of the carbon-in-pulp equipment is disconnected from the second buffer device 1000, and the second buffer device 1000 serves as a standby device. When it is necessary to maintain or replace the filter plate 4 in the first buffer device 1000, the outlet of the carbon-in-pulp equipment is connected with the second buffer device 1000, the outlet of the carbon-in-pulp equipment is disconnected from the first buffer device 1000, the first buffer device 1000 is emptied, the first fastener between the filter plate 4 and the connecting plate 2 is removed, the first fastener between the filter plate 4 and the fixed plate 1 is removed, the hard link between the movable assembly and the fixed assembly is released, then the movable assembly is hoisted out of the buffer tank 200, the filter plate 4 of the movable assembly is maintained or replaced, and the activated carbon particles accumulated on the filter plate 4 are recovered. After the maintenance or replacement is completed, the movable assembly is hoisted to the fixed assembly, and the fastener is used for fastening connection, and then the buffer tank 200 can be normally used.

[0037] The filter device 100 of the embodiment of the utility model, the filter screen is not arranged on the material pipe 3, the fixed plate 1 and the connecting plate 2 of the fixed assembly, the material pipe 3, the fixed plate 1 and the connecting plate 2 do not directly participate in blocking activated carbon particles, therefore, the material pipe 3, the fixed plate 1 and the connecting plate 2 are less likely to accumulate activated carbon particles, so that the fixed assembly needs to be maintained or replaced less frequently, thereby, the filter device 100 is fixed to the buffer tank 200 through the fixed assembly, when the filter plate 4 is maintained or replaced, the fixed assembly does not need to be separated from the buffer tank 200, the fixed assembly does not need to be hoisted, and the fixed assembly does not need to be considered to be hoisted in and out of the hoisting hole 2001 of the buffer tank 200, only the movable assembly needs to be hoisted, thereby, the size of the part (that is, the movable assembly) that needs to be hoisted after being split (after the fixed assembly and the movable assembly are split) is smaller, the size of the filter device 100 is effectively reduced, accordingly, the space required for hoisting is reduced, the hoisting cost is reduced, and the adaptability to different specifications of the buffer tank 200 is better.

[0038] Moreover, the fixed assembly and the movable assembly of the filter device 100 of the embodiment of the utility model are connected by the first fastener to form a whole, which can reduce the possibility of activated carbon particles escaping, thereby improving the separation effect of activated carbon particles and slurry, and improving the gold recovery efficiency of the carbon-in-pulp gold smelting system.

[0039] Meanwhile, the m filter plates are connected to form a movable assembly through the fasteners, when one filter plate needs to be replaced, only the filter plate needs to be disassembled from the movable assembly for replacement, and the whole movable assembly or even the filter device does not need to be replaced.

[0040] Therefore, the filter device 100 has the advantages that the hard link is adopted as a whole, the active carbon particles are prevented from escaping, the solid-liquid separation effect is improved, the filter device 100 is divided into the movable assembly and the fixed assembly, the installation space is saved, the adaptability to different spaces and specifications of the buffer tank 200 is improved, the hoisting construction difficulty and the replacement and maintenance cost are reduced, and the practicality is good.

[0041] In some embodiments, m is four, and n is six, as shown in Figure 1 and Figure 2 The connecting plate 2, the fixed plate 1 and the four filter plates 4 are connected to form a hexahedron.

[0042] Further, the fixed plate 1 is perpendicular to the connecting plate 2, the connecting plate 2, the fixed plate 1 and the four filter plates 4 are connected to form a cuboid, and the four filter plates 4 of the movable assembly are connected perpendicularly when assembled, so that the convenience of assembly of the movable assembly is further improved, and the convenience of butt joint installation of the movable assembly and the fixed assembly is improved.

[0043] As shown in Figure 1 and Figure 2 The material pipe 3 is perpendicular to the connecting plate 2, the material pipe 3 is perpendicular to the wall surface of the buffer tank 200, and the fixed plate 1 is parallel to the material pipe 3.

[0044] In some embodiments, the fixed assembly further comprises a positioning column 5, the positioning column 5 is arranged on the fixed plate 1, the positioning column 5 comprises a first positioning plate 51 and a second positioning plate 52, the first positioning plate 51 and the second positioning plate 52 are connected, the first positioning plate 51 is opposite to the connecting plate 2, the filter plate 4 is arranged between the first positioning plate 51 and the connecting plate 2, the second positioning plates 52 of the adjacent two positioning columns 5 are opposite to each other, and the filter plate 4 is arranged between the two opposite second positioning plates 52. The first positioning plate 51 is spaced apart from the connecting plate 2 and forms a positioning space, and meanwhile, the two opposite second positioning plates 52 are spaced apart to form a positioning space, the positioning space can cooperate with the filter plate 4, so that the installation of the filter plate 4 of the movable assembly can be positioned, the filter plate 4 can be quickly butt jointed into the positioning space, the convenience and efficiency of installation of the movable assembly and the fixed assembly are improved, and the hoisting construction difficulty and the replacement and maintenance cost are further reduced.

[0045] Specifically, the positioning column 5 is perpendicular to the fixed plate 1, and the cross section of the positioning column 5 perpendicular to the extending direction thereof is L-shaped.

[0046] In some embodiments, the positioning column 5 is made of angle steel.

[0047] Specifically, the first positioning plate 51 and the second positioning plate 52 are both provided with first connecting holes, the edge of the filter plate 4 is provided with a connecting side plate 46, the connecting side plate 46 is provided with a second connecting hole, and the first positioning plate 51 and the second positioning plate 52 are both connected with the adjacent connecting side plate 46 by penetrating the first connecting hole and the second connecting hole thereof with the first fastener.

[0048] The first positioning plate 51 and the second positioning plate 52 are both connected with the connecting side plate 46 by the first fastener, so as to realize the hard connection between the movable assembly and the fixed assembly, the connection strength is large, the sealing performance and the barrier performance of the active carbon particles at the connection position are good, and the amount of the active carbon particles escaping from the connection position between the movable assembly and the fixed assembly can be reduced.

[0049] Specifically, the first fastener is a fastening bolt, and the second fastener is a fastening bolt.

[0050] In some embodiments, the fixed plate 1 is located on the side of the material passing pipe 3 away from the lifting hole 2001 of the buffer device 1000. As shown in Figure 1 the lifting hole 2001 of the buffer tank 200 is located on the upper side of the buffer tank 200, and the fixed plate 1 is located on the lower side of the material passing pipe 3. Therefore, the movable assembly is located on the upper side of the fixed plate 1, so as to facilitate the lifting of the movable assembly through the lifting hole 2001, and further reduce the lifting construction difficulty and the replacement and maintenance cost.

[0051] Further, the fixed assembly further comprises a support 6, one end (upper end) of the support 6 is connected with the fixed plate 1, and the other end (lower end) of the support 6 is connected with the inner wall surface of the buffer tank 200. The support 6 enhances the stability of the connection between the fixed plate 1 and the buffer tank 200, and also increases the stability of the filter device 100, so as to reduce the influence of liquid shaking.

[0052] In this embodiment, the support 6 is a steel plate, and the support 6 is connected with the fixed plate 1 and the inner wall surface of the buffer tank 200 by welding.

[0053] Specifically, the fixed plate 1 is welded on the inner wall surface of the buffer tank 200, the material passing pipe 3 is welded on the inlet of the buffer tank 200, and the material passing pipe 3 and the connecting plate 2, and the connecting plate 2 and the fixed plate 1 are connected by welding.

[0054] The fixed assembly further comprises a limiting block 7, the limiting block 7 is arranged on the fixed plate 1, the limiting block 7 abuts against the filter plate 4, and the limiting block 7 is located downstream of the filter plate 4 in the fluid flow direction. Figure 3 and Figure 4 As shown in the figure, the limiting block 7 can provide support for the filter plate 4 to resist the impact generated by the flow of ore pulp, thereby limiting the movement of the filter plate 4, improving the stability of the filter plate 4, and then improving the connection strength of the filter plate 4 and the fixed assembly, reducing the situation of activated carbon particles escaping from the connection between the filter plate 4 and the fixed plate 1, and improving the solid-liquid separation effect.

[0055] Specifically, as shown in the figure, Figure 5 The filter plate 4 includes a mounting frame 41, a support bar 42, a wire mesh 43, an ear 44, and a pressing bar 45.

[0056] The mounting frame 41 is provided with an ear 44, which is located on the upper side of the mounting frame 41. The ear 44 can facilitate the installation of hoisting equipment, thereby facilitating the hoisting of the filter plate 4 and the movable assembly.

[0057] The mounting frame 41 is provided with a wire mesh 43 on one side in the thickness direction, and a pressing bar 45 is provided on the wire mesh 43 and connected to the mounting frame 41. The pressing bar 45 and the wire mesh 43 are both located upstream of the mounting frame 41 in the fluid flow direction. The other side of the mounting frame 41 in the thickness direction is provided with a plurality of support bars 42, and the two ends of the support bars 42 are respectively connected to the opposite sides of the mounting frame 41. The support bars 42 are connected to the mounting frame 41, which can provide support for the wire mesh 43 and ensure the stability of the wire mesh 43 when facing the flow of ore pulp, thereby improving the service life of the wire mesh 43.

[0058] Specifically, the mounting frame 41 includes four mounting plates, which are sequentially connected end to end to form a rectangular mounting frame 41.

[0059] Specifically, the support bar 42 is made of round steel, and the two intersecting round steels are welded and fixed at the connection point.

[0060] Both the mounting frame 41 and the pressing bar 45 are provided with bolt holes. The mounting frame 41 and the pressing bar 45 are connected by bolts, and the wire mesh 43 is fixed between the pressing bar 45 and the mounting frame 41. The installation method is simple and convenient for replacing the wire mesh 43. If the wire mesh 43 is damaged, only the wire mesh 43 needs to be replaced, without the need to replace the entire filter plate 4 where the damaged wire mesh 43 is located.

[0061] As shown in the figure, Figure 1 and Figure 2 Among the four filter plates 4, one filter plate 4 forms the top plate of the hexahedron, and three filter plates 4 form the side plates of the hexahedron. The filter plates 4 serving as side plates are provided with connecting side plates 46 on at least three edges, so that the connecting side plates 46 on the side plates are connected to the filter plate 4 serving as the top plate, and the connecting side plates 46 on the side plates are connected to the first positioning plate 51 or the second positioning plate 52.

[0062] Specifically, the connecting side plate 46, mounting plate, fixing plate 1 and connecting plate 2 are all made of steel plate.

[0063] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0064] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the features of different embodiments or examples described in the present application and the features of different embodiments or examples within the scope of the present application without contradiction.

[0068] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A filter device (100), characterized in that The utility model relates to a filter device for buffer equipment, which comprises a fixed assembly and a movable assembly. The fixed assembly comprises a fixed plate (1), a connecting plate (2) and a material pipe (3), the fixed plate (1) is arranged on the inner wall of the buffer equipment (1000), the connecting plate (2) is arranged on the fixed plate (1), the material pipe (3) is arranged on the connecting plate (2) and is fixedly connected with the buffer equipment (1000) at the inlet of the buffer equipment (1000). The movable assembly comprises m filter plates (4) and a plurality of second fasteners, the m filter plates (4) are connected by the second fasteners, and the movable assembly, the connecting plate (2) and the fixed plate (1) are connected by the first fasteners to form an n-face body, n = m + 2.

2. The filter device (100) according to claim 1, characterized in that The fixed assembly further comprises positioning columns (5) arranged on the fixed plate (1), the positioning columns (5) comprise first positioning plates (51) and second positioning plates (52), the first positioning plates (51) and the second positioning plates (52) are connected, the first positioning plates (51) are opposite to the connecting plate (2), the filter plates (4) are arranged between the first positioning plates (51) and the connecting plate (2), the second positioning plates (52) of adjacent two positioning columns (5) are opposite to each other, and the filter plates (4) are arranged between the opposite second positioning plates (52).

3. The filter device (100) according to claim 2, characterized in that First connecting holes are arranged on the first positioning plates (51) and the second positioning plates (52), the edges of the filter plates (4) are provided with connecting side plates (46), second connecting holes are arranged on the connecting side plates (46), and the first positioning plates (51) and the second positioning plates (52) are arranged on the first connecting holes and the second connecting holes by the first fasteners to be connected with the adjacent connecting side plates (46).

4. The filter device (100) according to claim 1, characterized in that m is four, and the fixed plate (1) is perpendicular to the connecting plate (2).

5. The filter device (100) according to claim 4, characterized in that The fixed plate (1) is located on the side of the material pipe (3) away from the lifting hole (2001) of the buffer equipment (1000).

6. The filter device (100) according to claim 5, characterized in that The fixed assembly further comprises a support (6), one end of the support (6) is connected with the fixed plate (1), and the other end of the support (6) is used for being connected with the inner wall of the buffer equipment (1000).

7. The filter device (100) according to claim 1, characterized in that The fixed assembly further comprises limiting blocks (7) arranged on the fixed plate (1), the limiting blocks (7) abut against the filter plates (4), and the limiting blocks (7) are located downstream of the filter plates (4) in the fluid flow direction.

8. The filter device (100) according to claim 1, characterized in that The filter plate (4) comprises a mounting frame (41), a support strip (42), a wire mesh (43), an ear (44) and a pressing strip (45), the mounting frame (41) is provided with the ear (44), the wire mesh (43) is laid on one side of the mounting frame (41) in the thickness direction, the pressing strip (45) is arranged on the wire mesh (43) and connected with the mounting frame (41), the pressing strip (45) is located upstream of the mounting frame (41) in the fluid flow direction, the other side of the mounting frame (41) in the thickness direction is provided with a plurality of support strips (42), and two ends of the support strip (42) are respectively connected with the opposite two sides of the mounting frame (41).

9. A buffering device (1000) characterized by, The filter device (100) is the filter device (100) according to any one of claims 1 to 8, the fixed plate (1) of the filter device (100) is arranged on the inner wall surface of the buffer tank (200), and the material passage pipe (3) of the filter device (100) is arranged at the material inlet of the buffer device (1000) and is fixedly connected with the buffer tank (200).

10. A carbon-in-pulp gold smelting system characterised in that, The filter device (100) is the filter device (100) according to any one of claims 1 to 8, the fixed plate (1) of the filter device (100) is arranged on the inner wall surface of the buffer tank (200), and the material passage pipe (3) of the filter device (100) is arranged at the material inlet of the buffer device (1000) and is fixedly connected with the buffer tank (200).

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