Thickener rake frame with inclined plate structure

Abstract

The utility model discloses a thickener harrow frame with an inclined plate structure. The thickener harrow frame comprises a harrow frame mechanism and a driving shaft which is arranged on the harrow frame mechanism and is used for driving the harrow frame mechanism to rotate, the rake frame mechanism comprises a base, and inclined plate rake frame assemblies are fixedly connected to the two sides of the base correspondingly. The inclined plate harrow frame assembly comprises a special-shaped steel beam frame, and a plurality of inclined harrow plates which are arranged in an inclined mode are fixedly connected into the special-shaped steel beam frame. The inner end of the special-shaped steel beam frame is fixedly installed on the base through a connecting piece. The two sides of the base are fixedly connected with vertical beams perpendicular to the special-shaped steel beam frame respectively. The side walls of the two sides of the vertical beam are fixedly connected with obliquely-arranged connecting beams correspondingly, and the connecting beams are fixedly connected to the special-shaped steel beam frame. And a plurality of I-type rake rods and II-type rake rods are fixedly connected to the vertical beam and the connecting beam respectively. By means of the device, mineral aggregates in ore pulp, especially caked slag and slag which is not fully dispersed, are fully crushed, the raking and washing effect is improved, and then impurities in the ore pulp are cleaned after being fully raked and washed.

Description

Technical Field

[0001] The utility model belongs to the technical field of rake frames of thickeners, and particularly relates to a rake frame of a thickener with an inclined plate structure. Background Art

[0002] A thickener is a device used in industry for concentrating ore dressing and cleaning slag. Its main structure includes a thickening tank and a rake frame rotatably connected in the thickening tank. During the working process, the rotating rake frame continuously tilts the ore material, and the upper-layer clarified clean water continuously overflows from the overflow port of the thickening tank, realizing continuous tilting and continuous concentration.

[0003] Moreover, the ore sludge settled at the bottom of the thickener continuously discharges from the sewage discharge position at the bottom of the tank. Therefore, thickeners are widely used in the industry, such as in industrial ore dressing, mining ore washing, as well as in many fields such as chemical production and sewage treatment.

[0004] The rake frame is the core structure of the thickener. Specifically, during the raking and washing process, the rake frame continuously washes the materials in the pulp. Therefore, the raking and washing efficiency of the rake frame determines the subsequent washing efficiency of the ore material. Currently, the rake frame structure of the thickener mainly consists of a horizontal steel beam frame fixed on the shaft, and a plurality of scraper plates are installed at the bottom of the horizontal steel beam frame to continuously scrape the settled sludge.

[0005] The advantages of the above structural design are: light weight and flexible raking and washing. However, the disadvantages are also very obvious. Specifically, the ore material cannot be fully raked and washed. Especially in the process of fine ore dressing, due to the inability to fully rake and wash the ore material, the impurity content of the ore material after raking and washing is still very high, the quality of the selected ore is not high, and even secondary raking and washing are required for re-selection.

[0006] Obviously, the disadvantages are greater than the advantages. Secondary treatment will inevitably cause defects such as waste of water resources, excessive loss of ore material caused by raking and washing, and excessive production cost. Content of the Utility Model

[0007] Based on the above background, the purpose of the utility model is to provide a rake frame of a thickener with an inclined plate structure.

[0008] To achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A rake frame of a thickener with an inclined plate structure includes a rake frame mechanism and a drive shaft installed on the rake frame mechanism for driving the rotation of the rake frame mechanism; the rake frame mechanism includes a base, and inclined plate rake frame assemblies are respectively and fixedly connected to both sides of the base;

[0010] The inclined plate rake frame assembly includes a special-shaped steel beam frame, and a plurality of inclined rake plates are fixedly connected inside the special-shaped steel beam frame;

[0011] The inner end of the special-shaped steel beam frame is fixedly installed on the base through a connecting piece;

[0012] On both sides of the base, vertical beams arranged perpendicular to the special-shaped steel beam frame are fixedly connected respectively;

[0013] On the side walls on both sides of the vertical beam, connecting beams arranged obliquely are fixedly connected respectively, and the connecting beams are fixedly connected to the special-shaped steel beam frame;

[0014] On the vertical beam and the connecting beam, a number of type-I rake rods and type-II rake rods are fixedly connected respectively.

[0015] Preferably, the special-shaped steel beam frame includes a straight bottom beam rod, a bow-shaped top beam rod is welded on the top of the straight bottom beam rod, and the inclined rake plate is welded at the bottom of the bow-shaped top beam rod and the top of the bottom beam rod.

[0016] Preferably, the bow-shaped top beam rod includes an upper inclined beam rod part integrally formed at the outer end part of the straight bottom beam rod, and the upper inclined beam rod part is arranged obliquely upward;

[0017] The inclined beam rod part is integrally formed with a straight beam rod part, and the straight beam rod part is integrally formed with a lower inclined beam rod part arranged obliquely downward;

[0018] The lower inclined beam rod part is integrally formed with a vertical beam part arranged vertically, and the vertical beam part is integrally formed with the inner end of the straight bottom beam rod.

[0019] Preferably, the connecting piece includes a triangular rib plate welded on the inner side wall of the vertical beam part, an assembly plate is welded at the bottom of the triangular rib plate, and the assembly plate is fastened on the base through a number of fastening bolts.

[0020] Preferably, support rolling wheels are respectively assembled and connected to the outer end of the special-shaped steel beam frame and the vertical beam part, and the support rolling wheels support and roll at the bottom of the thickener.

[0021] Preferably, the type-I rake rod includes a vertical rod part welded vertically, and two hooks bent in different directions are integrally formed at the upper end of the vertical rod part.

[0022] Preferably, the type-II rake rod includes a vertical rod welded vertically;

[0023] A hook part bent outward is integrally formed on the vertical rod.

[0024] Preferably, a number of ear plates are welded at the upper end of the drive shaft;

[0025] Hanging rings are hung on the ear plates, and wire ropes respectively pulling on the special-shaped steel beam frame and the vertical beam are fixedly connected to the hanging rings.

[0026] Preferably, the transverse cross-sectional shape of the base is rectangular;

[0027] A number of arc-shaped connecting beams are welded between the base and the vertical beam.

[0028] The utility model has the following beneficial effects:

[0029] 1. During the rotation process of the rake frame mechanism, firstly, the special-shaped steel beam frame of the special-shaped structure fully agitates the pulp. Secondly, with the cooperation of the inclined rake plate, the pulp is further agitated. The design of the inclined rake plate increases the impact points with the materials during the agitation of the pulp. Under the action of shear force, the ore materials in the pulp, especially the caked and insufficiently dispersed slag, are fully broken, enhancing the raking effect, and further realizing the full raking and cleaning of the impurities in the pulp.

[0030] 2. The type-I rake rod includes a vertical rod portion welded vertically, and two hooks bent in different directions are integrally formed at the upper end of the vertical rod portion. The type-II rake rod includes a vertical rod welded vertically; a hook portion bent outward is integrally formed on the vertical rod.

[0031] During the working process, the rotating rake frame mechanism drives the type-I rake rods and type-II rake rods to fully agitate the settled ore materials in the lower layer of the pulp. During the agitation process, the ore materials continuously impact on the type-I rake rods and type-II rake rods to further finely disperse the ore materials. Due to the top hook design of the type-I rake rods and type-I rake rods, the effect of impacting the ore materials can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0033] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present utility model;

[0034] Figure 2 It is a schematic diagram of the structure of the supporting rolling wheel in the embodiment of the present utility model;

[0035] Figure 3 In the embodiment of the present utility model Figure 1 It is a schematic diagram of the structure from another perspective;

[0036] Figure 4 It is a schematic diagram of the structure in which the ear plate is fixedly connected to the drive shaft in the embodiment of the present utility model.

[0037] The realization, functional features, and advantages of the present utility model will be further described in conjunction with embodiments with reference to the accompanying drawings. Detailed implementation manners

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0041] Embodiment 1

[0042] As Figures 1-4 shown, a rake frame of an inclined plate structure thickener includes a rake frame mechanism and a driving shaft 4 that is the same as the existing method and is installed on the rake frame mechanism to drive the rotation of the rake frame mechanism; the rake frame mechanism includes a base 1 (the transverse cross-sectional shape of the base 1 is rectangular), and inclined plate rake frame assemblies are respectively fixedly connected to both sides of the base 1.

[0043] Specifically, the inclined plate rake frame assembly includes a special-shaped steel beam frame 2 (the inner end of the special-shaped steel beam frame 2 is fixedly installed on the base 1 through a connecting member 23. Specifically, the connecting member 23 includes a triangular rib plate welded to the inner side wall of the vertical beam part, and an assembly plate is welded to the bottom of the triangular rib plate, and the assembly plate is fastened to the following base 1 through a plurality of fastening bolts).

[0044] Meanwhile, the shape of the special-shaped steel beam frame 2 is as follows: the special-shaped steel beam frame 2 includes a straight bottom beam rod 21, and a bow-shaped top beam rod 22 is welded to the top of the straight bottom beam rod 21. The shape of the bow-shaped top beam rod 22 is: the bow-shaped top beam rod includes an upper inclined beam rod part integrally formed at the outer end part of the straight bottom beam rod 21, and the upper inclined beam rod part is arranged obliquely upward; a straight beam rod part is integrally formed on the inclined beam rod part, and a lower inclined beam rod part arranged obliquely downward is integrally formed on the straight beam rod part; a vertical beam part arranged vertically is integrally formed on the lower inclined beam rod part, and the vertical beam part is integrally formed at the inner end of the straight bottom beam rod 21.

[0045] A plurality of obliquely arranged rake plates 3 (the rake plates 3 are fixed by welding) are fixedly connected inside the special-shaped steel beam frame 2, that is, the rake plates 3 are welded in the space formed between the bow-shaped top beam rod 22 and the straight bottom beam rod 21. Therefore, the lengths of the rake plates 3 are different.

[0046] Under the above structure, during the rotation of the rake frame mechanism, first, the special-shaped steel beam frame 2 with a special shape fully stirs the pulp. Secondly, with the cooperation of the rake plates 3, the pulp is further stirred. The design of the rake plates 3 increases the impact action points with the materials during the stirring of the pulp. Under the action of shear force, the ore materials in the pulp, especially the caked and insufficiently dispersed slag, are fully broken, the rake washing effect is increased, and then the impurities in the pulp are fully raked and washed and then cleaned.

[0047] Embodiment 2

[0048] As Figures 1-4 shown, on the basis of the structure of Embodiment 1 in this embodiment, in order to further increase the rake washing effect, vertical beams 5 arranged perpendicular to the special-shaped steel beam frame 2 are respectively fixedly connected to the front and rear sides of the base 1; connecting beams 6 arranged obliquely are respectively fixedly connected to the side walls on both sides of the vertical beam 5, and the connecting beams 6 are fixedly connected to the special-shaped steel beam frame 2.

[0049] Specifically, a plurality of type-I rake rods 51 and type-II rake rods 61 are respectively fixedly connected to the vertical beam 5 and the connecting beam 6. During the rake washing process by using the type-I rake rods 51 and the type-II rake rods 61, the pulp is further raked and washed by the type-I rake rods 51 and the type-II rake rods 61, and the rake washing effect is increased.

[0050] Specifically, the type-I rake rod 51 includes a vertical rod part welded vertically, and two bent hooks (the hooks are bent in opposite directions) are integrally formed at the upper end of the vertical rod part.

[0051] Meanwhile, the type-II rake rod 61 includes a vertical rod welded vertically; a bent hook part bent outward is integrally formed on the vertical rod.

[0052] During operation, the rotating rake frame mechanism carries the type-I rake rods 51 and type-II rake rods 61 to fully agitate the settled ore materials in the lower layer of the pulp. During the agitation process, the ore materials continuously impact on the type-I rake rods 51 and type-II rake rods 61 to further finely disperse the ore materials. Since the type-I rake rods 51 and type-II rake rods 61 adopt a top hook design, the effect of impacting the ore materials can be increased.

[0053] Embodiment 3

[0054] As Figures 1-4 shown, on the basis of the structure of Embodiment 1 in this embodiment, support rolling wheels 8 are respectively assembled and connected to the outer ends of the above-mentioned special-shaped steel beam frame 2 and the vertical beam 5. The support rolling wheels 8 support and roll at the bottom position of the thickener. The design of the support rolling wheels 8 ensures that during the rotation process, the heavy rake frame mechanism can be supported, the load of the motor drive can be reduced (the same as the existing method, the drive shaft 4 is installed on the motor driving the rake frame mechanism), the flexibility of rake washing can be increased, and the resistance during rake washing can be reduced. Especially when there is a lot of sludge at the bottom of the pool, the rollers can increase the flexibility of rotation.

[0055] Meanwhile, 4 ear plates are welded to the upper end of the drive shaft 4; a hanging ring 41 is hung on each ear plate, and a wire rope 42 that is respectively pulled on the special-shaped steel beam frame 2 and the vertical beam 5 is fixedly connected to the hanging ring 41. By this method, the heavy rake frame can be pulled, and the flexibility of rotation can be increased.

[0056] Meanwhile, 4 arc-shaped connecting beams 7 are welded between the above-mentioned base 1 and the vertical beam 5. The arc-shaped connecting beams 7 are used to increase the structural strength of the rake frame structure.

[0057] Certainly, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A rake frame of a thickener with an inclined plate structure, comprising a rake frame mechanism and a drive shaft mounted on the rake frame mechanism for driving the rake frame mechanism to rotate; characterized in that: The rake frame mechanism comprises a base, and inclined plate rake frame assemblies are respectively fixedly connected to both sides of the base; The inclined plate rake frame assembly comprises a special-shaped steel beam frame, and a plurality of inclined rake plates arranged obliquely are fixedly connected in the special-shaped steel beam frame; The inner end of the special-shaped steel beam frame is fixedly mounted on the base through a connecting piece; Both sides of the base are respectively fixedly connected with vertical beams arranged perpendicularly to the special-shaped steel beam frame; The side walls on both sides of the vertical beam are respectively fixedly connected with inclined connecting beams, and the connecting beams are fixedly connected to the special-shaped steel beam frame; A plurality of type I rake rods and type II rake rods are fixedly connected to the vertical beam and the connecting beam respectively.

2. The inclined plate structure thickener rake according to claim 1, characterized in that: The special-shaped steel beam frame comprises a straight bottom beam rod, a bow-shaped top beam rod is welded on the top of the straight bottom beam rod, and the inclined rake plate is welded at the bottom of the bow-shaped top beam rod and the top of the bottom beam rod.

3. The inclined plate structure thickener rake according to claim 2, characterized in that: The arched top beam rod comprises an upper inclined beam rod portion integrally formed at the outer end of the straight bottom beam rod, and the upper inclined beam rod portion is arranged to be inclined upward; The oblique beam portion is integrally formed with a straight beam portion, and the straight beam portion is integrally formed with a lower oblique beam portion arranged downwardly inclined; The lower oblique beam portion is integrally formed with a vertical beam portion which is vertically arranged, and the vertical beam portion is integrally formed with the inner end of the straight bottom beam portion.

4. The inclined plate structure thickener rake according to claim 3, characterized in that: The connecting piece comprises a triangular rib plate welded on the inner side wall of the vertical beam portion, an assembly plate is welded on the bottom of the triangular rib plate, and the assembly plate is fastened to the base by a plurality of fastening bolts.

5. The inclined plate structure thickener rake according to claim 1, characterized in that: The outer ends of the special-shaped steel beam frame and the vertical beam portion are respectively equipped with supporting rolling wheels, and the supporting rolling wheels are supported and rolled at the bottom of the concentration tank.

6. The inclined plate structure thickener rake according to claim 1, characterized in that: The Class I rake rod comprises a vertically welded vertical rod portion, and the upper end of the vertical rod portion is integrally formed with two hooks bent in different directions.

7. The inclined plate structure thickener rake according to claim 1, characterized in that: The Class II rake bar comprises a vertically welded vertical bar; The vertical rod is integrally formed with a hook portion that is bent outward.

8. The inclined plate structure thickener rake according to claim 1, characterized in that: A plurality of lug plates are welded to the upper end of the drive shaft; The pull ear plate is provided with a hanging ring, and the hanging ring is fixedly connected with a steel wire rope pulled on the special-shaped steel beam frame and the vertical beam respectively.

9. The inclined plate structure thickener rake according to claim 1, characterized in that: The transverse cross-section of the base is rectangular; A plurality of arc-shaped connecting beams are welded between the base and the vertical beam.

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