Auger device for silicon dioxide filter cake

Abstract

A packing auger device for silicon dioxide filter cakes relates to the technical field of silicon dioxide filter cake manufacturing tools and comprises a filter press, the outlet end of the filter press is connected with a packing auger conveyor, and the outlet end of the packing auger conveyor is connected with a beater; a liquid filtering plate is arranged between the outlet end of the filter press and the inlet end of the auger conveyor, a liquid guiding shell wrapping the liquid filtering plate is arranged below the liquid filtering plate, a liquid discharging barrel is connected to the outer wall of the liquid guiding shell, and a suspension assembly is connected to the top of an outer shell, located in the middle, of the auger conveyor. The utility model solves the problems that in the prior art, water leaked from a filter press above an auger is not collected and enters the next working procedure along with the auger, so that the production is not facilitated; the problems that an existing auger is long, the total length exceeds 8 meters, actual working conditions are not fully considered in the design, and consequently an auger mandrel is prone to breakage and too short in service life are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of silica cake manufacturing tools, and particularly relates to an auger device for silica cake. Background Art

[0002] In the existing silica production, since the cake between two filter plates of the filter press falls as a whole, with a drop of 3 meters, after the large cake enters the beater quickly through the conveyor, it brings a short-term super-large load to the stirring system, extremely likely causing the current of the stirring motor to suddenly soar and stall the beater, and it is difficult to resume normal operation in a short time. The conveyor belt rotates too fast, the cake enters the beater intermittently, without a buffer time, the beating time is too short, causing unnecessary repeated impacts on the beater, the quality of the prepared pulp is not good, and there are many coarse particles in the pulp.

[0003] A patent with a publication number of CN219502908U is disclosed in the prior art. The solution includes a U-shaped housing arranged below the cake discharge hopper. A conveying shaft is arranged through the central position inside the U-shaped housing. Sector-shaped blades are arranged on the conveying shaft along its length direction. Two adjacent sector-shaped blades are installed with a 90° dislocation in the length direction of the conveying shaft. The sector-shaped blades are fixedly connected with a shaft-piercing fixing rod. The shaft-piercing fixing rod passes through the conveying shaft and is locked by a nut. A breaking rod is vertically arranged on the surface of the sector-shaped blade. By designing the combination of the sector-shaped blades for spiral propulsion and cutting and the additional breaking rods, the sticky cake blocks propelled spirally can be cut, separated, broken, and loosened while being propelled forward, avoiding the sticking and wrapping of the sticky cake blocks to the paddle blades.

[0004] The existing devices including the above patent gradually expose the deficiencies of the prior art during use, mainly manifested in the following aspects:

[0005] First, the water leaking from the filter press above the auger is not collected and enters the next process along with the auger, which is not conducive to production.

[0006] Second, due to the long length of the existing auger, the total length exceeds 8 meters, and the design does not fully consider the actual working conditions, resulting in the easy fracture of the auger core shaft and too short service life, which is not conducive to production.

[0007] In summary, it is obvious that the prior art has inconveniences and defects in actual use, so it is necessary to improve. Content of the Utility Model

[0008] In view of the defects in the prior art, the utility model provides a screw conveyor device for silica filter cake, which is used to solve the problems that the water leaking from the filter press above the screw conveyor in the traditional technology is not collected and enters the next process along with the screw conveyor, which is not conducive to production; and the existing screw conveyor has a long length, the total length exceeds 8 meters, and the design does not fully consider the actual working conditions, resulting in easy fracture of the screw core shaft and too short service life.

[0009] To achieve the above object, the utility model provides the following technical solutions:

[0010] The screw conveyor device for silica filter cake includes a filter press, the outlet end of the filter press is connected with a screw conveyor, and the outlet end of the screw conveyor is connected with a beating machine;

[0011] A filtrate plate is arranged between the outlet end of the filter press and the inlet end of the screw conveyor, a liquid guide shell covering the filtrate plate is arranged below the filtrate plate, and a liquid discharge cylinder is connected to the outer wall of the liquid guide shell.

[0012] A suspension assembly is connected to the top of the outer shell body at the middle position of the screw conveyor.

[0013] As an optimized scheme, a rotating roller is horizontally and rotatably arranged inside the inlet end of the screw conveyor, and crushing teeth are arranged around the circumferential wall of the rotating roller.

[0014] As an optimized scheme, the filtrate plate is arranged to incline downward.

[0015] As an optimized scheme, the bottom surface of the liquid guide shell is arranged to incline downward, and the inclination direction of the liquid guide shell is arranged opposite to the inclination direction of the filtrate plate.

[0016] As an optimized scheme, the inlet end of the liquid discharge cylinder is flush with the bottom surface of the lower end of the liquid guide shell.

[0017] As an optimized scheme, a connecting seat is fixedly connected to the outer wall of the liquid guide shell, and the connecting seat is fixed to the bottom of the filter press by bolts.

[0018] As an optimized scheme, the suspension assembly includes a vertically arranged threaded cylinder, the lower end of the threaded cylinder is threadedly connected with a lower screw rod, the lower end of the lower screw rod is fixedly connected with a lifting hook, a lifting lug plate is fixedly connected to the top of the outer shell body at the middle position of the screw conveyor, and the lifting hook is connected with the lifting lug plate.

[0019] As an optimized scheme, the upper end of the threaded cylinder is threadedly connected with an upper screw rod, the thread rotation direction of the upper screw rod is opposite to the thread rotation direction of the lower screw rod, and the upper end of the upper screw rod is fixedly connected with a lifting ring.

[0020] As an optimized solution, a lower locking nut is threadedly connected to the lower screw rod, the upper end of the lower locking nut abuts against the lower end of the threaded cylinder, an upper locking nut is threadedly connected to the upper screw rod, and the lower end of the upper locking nut abuts against the upper end of the threaded cylinder.

[0021] As an optimized solution, a driving nut is fixedly connected to the outer wall of the threaded cylinder.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] A suspension assembly is arranged at the middle part of the auger for hanging support to overcome the problem of core shaft fracture; after the hanging support, the pitch of the auger can be increased from 300 mm to 400 mm, reducing the swing amplitude of the end of the core shaft in the later stage of filter cake conveying and extending the service life of the core shaft and the hanging support;

[0024] By providing a filtrate plate and a liquid guide shell, the filtrate plate separates the water running, leaking and dripping from the filter press, enabling the water to fall into the liquid guide shell for collection. The material enters the auger conveyor along the inclined filtrate plate, and the water running, leaking and dripping in the liquid guide shell is recycled for production and no longer enters the auger, solving the problem of filter cake with water. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0026] Figure 1 It is a structural schematic diagram of the present utility model.

[0027] In the figure: 1 - filter press; 2 - auger conveyor; 3 - pulper; 4 - filtrate plate; 5 - liquid guide shell; 6 - drain pipe; 7 - connecting seat; 8 - roller; 9 - crushing teeth; 10 - threaded cylinder; 11 - lower screw rod; 12 - hook; 13 - lifting ear plate; 14 - lower locking nut; 15 - driving nut; 16 - upper screw rod; 17 - upper locking nut; 18 - lifting ring. Detailed Embodiments

[0028] The following will describe in detail the embodiments of the technical solutions of the present utility model in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and thus are only examples and cannot be used to limit the protection scope of the present utility model.

[0029] As Figure 1As shown in the figure, the silica filter cake screw device includes a filter press 1. The outlet end of the filter press 1 is connected to a screw conveyor 2, and the outlet end of the screw conveyor 2 is connected to a pulper 3.

[0030] A filtrate plate 4 is provided between the outlet end of the filter press 1 and the inlet end of the screw conveyor 2. A liquid guide shell 5 covering the filtrate plate 4 is provided below the filtrate plate 4. A drain cylinder 6 is connected to the outer wall of the liquid guide shell 5.

[0031] A suspension assembly is connected to the top of the outer shell of the screw conveyor 2 at the middle position.

[0032] A rotating roller 8 is horizontally rotatably provided inside the inlet end of the screw conveyor 2. Crushing teeth 9 are arranged around the circumferential wall of the rotating roller 8. A driving machine for driving the rotating roller 8 to rotate is fixedly connected to the outer wall of the inlet end of the screw conveyor 2, so as to preliminarily crush large pieces of materials.

[0033] The filtrate plate 4 is arranged obliquely downward.

[0034] The bottom surface of the liquid guide shell 5 is arranged obliquely downward, and the inclination direction of the liquid guide shell 5 is opposite to the inclination direction of the filtrate plate 4.

[0035] The inlet end of the drain cylinder 6 is flush with the bottom surface of the lower end of the liquid guide shell 5.

[0036] A connecting seat 7 is fixedly connected to the outer wall of the liquid guide shell 5, and the connecting seat 7 is fixed to the bottom of the filter press 1 by bolts.

[0037] The suspension assembly includes a vertically arranged threaded cylinder 10. The lower end of the threaded cylinder 10 is threadedly connected to a lower screw rod 11. A hook 12 is fixedly connected to the lower end of the lower screw rod 11. A lifting ear plate 13 is fixedly connected to the top of the outer shell of the screw conveyor 2 at the middle position, and the hook 12 is connected to the lifting ear plate 13.

[0038] The upper end of the threaded cylinder 10 is threadedly connected to an upper screw rod 16. The thread rotation direction of the upper screw rod 16 is opposite to the thread rotation direction of the lower screw rod 11. A lifting ring 18 is fixedly connected to the upper end of the upper screw rod 16, and the lifting ring is fixed on the top beam or the frame.

[0039] A lower locking nut 14 is threadedly connected to the lower screw rod 11. The upper end of the lower locking nut 14 abuts against the lower end of the threaded cylinder 10. An upper locking nut 17 is threadedly connected to the upper screw rod 16. The lower end of the upper locking nut 17 abuts against the upper end of the threaded cylinder 10.

[0040] A driving nut 15 is fixedly connected to the outer wall of the threaded cylinder 10.

[0041] The working principle of this device is as follows:

[0042] A suspension component is arranged in the middle part of the auger for hanging support to overcome the problem of core shaft fracture; by adding the hanging support and increasing the pitch of the rear section, there is no obvious swing at the end of the core shaft, the operation is more stable, and the service life of the auger is extended.

[0043] After the hanging support, the pitch of the auger can be increased from 300 mm to 400 mm, reducing the swing amplitude at the end of the core shaft in the later stage of filter cake conveying and extending the service life of the core shaft and the hanging support; after the diameter of the auger is increased, the rotation speed is reduced from 36 revolutions per minute to 24 revolutions per minute, and the wear of the blades is significantly weakened.

[0044] By setting the filtrate plate 4 and the liquid guide shell 5, the filtrate plate 4 separates the water leaking from the filter press 1, allowing the water to fall into the liquid guide shell 5 for collection. The material enters the auger conveyor 2 along the inclined filtrate plate 4, and the water leaking from the liquid guide shell 5 is recycled for production and no longer enters the auger, solving the problem of filter cake carrying water.

[0045] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. Screw device for silica cake, characterized in that: It includes a filter press (1), the outlet end of the filter press (1) is connected to a screw conveyor (2), and the outlet end of the screw conveyor (2) is connected to a pulping machine (3); A filtrate plate (4) is provided between the outlet end of the filter press (1) and the inlet end of the screw conveyor (2). A liquid guide shell (5) covering the filtrate plate (4) is provided below the filtrate plate (4). A liquid discharge cylinder (6) is connected to the outer wall of the liquid guide shell (5). A suspension assembly is connected to the top of the outer shell of the screw conveyor (2) at the middle position.

2. The auger device for silica filter cake according to claim 1, characterized in that: A rotating roller (8) is horizontally rotatably provided inside the inlet end of the screw conveyor (2), and crushing teeth (9) are arranged around the circumferential wall of the rotating roller (8).

3. The auger device for silica filter cake according to claim 1, characterized in that: The filtrate plate (4) is arranged obliquely downward.

4. The auger device for silica filter cake according to claim 1, wherein: The bottom surface of the liquid guide shell (5) is arranged obliquely downward, and the inclination direction of the liquid guide shell (5) is opposite to the inclination direction of the filtrate plate (4).

5. The auger device for silica filter cake according to claim 1, characterized in that: The inlet end of the liquid discharge cylinder (6) is flush with the bottom surface of the lower end of the liquid guide shell (5).

6. The auger device for silica filter cake according to claim 1, characterized in that: A connecting seat (7) is fixedly connected to the outer wall of the liquid guide shell (5), and the connecting seat (7) is fixed to the bottom of the filter press (1) by bolts.

7. The auger device for silica filter cake according to claim 1, characterized in that: The suspension assembly includes a vertically arranged threaded cylinder (10). The lower end of the threaded cylinder (10) is threadedly connected to a lower screw rod (11). The lower end of the lower screw rod (11) is fixedly connected to a hook (12). A lifting ear plate (13) is fixedly connected to the top of the outer shell of the screw conveyor (2) at the middle position, and the hook (12) is connected to the lifting ear plate (13).

8. The auger device for silica filter cake according to claim 7, characterized in that: The upper end of the threaded cylinder (10) is threadedly connected to an upper screw rod (16). The thread rotation direction of the upper screw rod (16) is opposite to the thread rotation direction of the lower screw rod (11). The upper end of the upper screw rod (16) is fixedly connected to a lifting ring (18).

9. The auger device for silica filter cake according to claim 8, characterized in that: A lower locking nut (14) is threadedly connected to the lower screw rod (11), and the upper end of the lower locking nut (14) abuts against the lower end of the threaded cylinder (10). An upper locking nut (17) is threadedly connected to the upper screw rod (16), and the lower end of the upper locking nut (17) abuts against the upper end of the threaded cylinder (10).

10. The auger device for silica filter cake according to claim 7, characterized in that: A driving nut (15) is fixedly connected to the outer wall of the threaded cylinder (10).

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