Screening device for powder sodium silicate production

Abstract

The utility model discloses a screening device for powder sodium silicate production. The screening device comprises a cylindrical outer cover. The lower end face of the cylindrical outer cover is closed, a detachable upper cover plate is installed on the upper end face of the cylindrical outer cover, a feeding pipe is installed on the upper surface of the detachable upper cover plate, a coarse material outlet and a fine material outlet are formed in the lower end face of the cylindrical outer cover, a main shaft is rotationally connected into the cylindrical outer cover, and the upper end of the main shaft penetrates through the detachable upper cover plate. According to the screening device for powder sodium silicate production, powder sodium silicate is screened in a sealed mode, dust overflow of the powder sodium silicate in the screening process can be effectively avoided, meanwhile, the powder sodium silicate can be effectively screened out by shaking the screen, and the powder sodium silicate can be effectively screened out by shaking the screen. The blocking condition of meshes of the screen can be effectively relieved; raw materials needing to be screened are fed into the first conical collecting barrel through the feeding pipe and finally fall onto the spiral filter screen through a discharging opening in one end of the conical collecting barrel.

Description

Technical Field

[0001] The present application relates to the technical field of powdered sodium silicate production, and in particular to a screening device for powdered sodium silicate production. Background Art

[0002] Before packing the powdered sodium silicate into bags, in order to ensure its quality, the powder needs to be screened. When the existing screening equipment screens the powdered sodium silicate powder, since the powdered sodium silicate powder is fine, dust will be generated during the screening process, and the operators often need to wear protective masks to work normally; at the same time, since the screen of the powdered sodium silicate screening equipment is often blocked by the solid shell, the screen needs to be frequently disassembled for cleaning, which leads to low filtration efficiency of the powdered sodium silicate. Summary of the invention

[0003] The present application provides a screening device for the production of powdered sodium silicate. By performing closed screening on the powdered sodium silicate, dust spillage of the powdered sodium silicate during the screening process can be effectively avoided. At the same time, by shaking the screen, the blockage of the screen mesh can be effectively alleviated, effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a screening device for the production of powdered sodium silicate, comprising a cylindrical outer cover; the lower end face of the cylindrical outer cover is closed, and a removable upper cover is installed on the upper end face of the cylindrical outer cover, and a feeding pipe is installed on the upper surface of the removable upper cover, and a coarse material outlet and a fine material outlet are arranged on the lower end face of the cylindrical outer cover, and a main shaft is rotatably connected inside the cylindrical outer cover, and the upper end of the main shaft is arranged through the removable upper cover, and a spiral guide groove is arranged on the outer side face of the main shaft, and a spiral filter screen is installed at the inner center of the spiral guide groove, and a spiral outer cover is installed at the open part of the spiral guide groove, and a conical collecting barrel 2 is provided at the end of the inner side face of the cylindrical outer cover, and a conical collecting barrel 1 is rotatably connected to the lower end of the inner side face of the cylindrical outer cover, and the lower end face of the conical collecting barrel 1 is communicated with the upper part of the spiral guide groove, and the outer side face of the conical collecting barrel 1 is connected to the spiral outer cover.

[0005] The lower end of the conical collecting cylinder 2 is connected to the coarse material outlet, a guide channel is arranged at the lower end of the inner side surface of the main shaft, the lower end of the guide channel is connected to the fine material outlet, a feed window is arranged on the guide channel, and the feed window is connected to the lower part of the spiral guide groove.

[0006] The upper surface of the detachable upper cover plate is provided with a swing mechanism for controlling the main shaft to swing back and forth.

[0007] Preferably, a ventilation tube is provided on the upper surface of the detachable upper cover plate, and the ventilation tube is connected to the external dust bag.

[0008] Preferably, the main shaft is arranged to pass through the second conical collecting cylinder.

[0009] Preferably, the swing mechanism includes a protective cover, a guide rail is installed inside the protective cover, a slider is slidably connected to the guide rail, a rack is installed on the slider, a gear is sleeved on the outer side of the main shaft, the gear is meshed with the rack, an electrically controlled telescopic rod is installed inside the protective cover, and the telescopic end of the electrically controlled telescopic rod is connected to the outer side of the slider.

[0010] Preferably, two vertically adjacent spiral guide channels are formed between the spiral outer cover, the spiral filter screen and the spiral guide groove.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] 1. This screening device for the production of powdered sodium silicate can effectively prevent the dust from spilling out during the screening process by performing closed screening on the powdered sodium silicate. At the same time, by shaking the screen, the blockage of the screen mesh can be effectively alleviated.

[0013] 2. The raw materials to be screened are fed into the interior of the conical collecting cylinder through the feeding pipe, and finally fall into the spiral filter screen through the discharge port at the end of the conical collecting cylinder. While the materials spirally fall on the surface of the spiral filter screen, the fine materials pass through the mesh holes and enter the interior of the spiral guide groove, thereby realizing rapid screening of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of this application;

[0015] Figure 2 This is a cross-sectional view of this application;

[0016] Figure 3 Schematic diagram of the internal structure of the swing mechanism.

[0017] In the figure: 1 feeding pipe, 2 detachable upper cover, 3 swing mechanism, 31 gear, 32 protective cover, 33 guide rail, 34 slider, 35 electric telescopic rod, 4 air vent, 5 cylindrical cover, 6 coarse material outlet, 7 fine material outlet, 8 conical collecting barrel 1, 9 main shaft, 10 spiral cover, 11 spiral filter screen, 12 spiral guide groove, 13 conical collecting barrel 2, 14 feeding window. DETAILED DESCRIPTION

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

[0019] In the description of this application, if the orientation description is involved, for example, the orientation or position relationship indicated by "upper", "lower", "front", "back", "left", "right", etc. is based on the attached Figure 2 The orientation or position relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present application. When a feature is referred to as being "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0020] See also Figure 1-3 The present application provides the following technical solution: a screening device for powdered sodium silicate production, comprising a cylindrical outer cover 5; the lower end surface of the cylindrical outer cover 5 is closed, the upper end surface of the cylindrical outer cover 5 is installed with a detachable upper cover plate 2, the upper surface of the detachable upper cover plate 2 is installed with a feeding pipe 1, the lower end surface of the cylindrical outer cover 5 is provided with a coarse material outlet 6 and a fine material outlet 7, the inner part of the cylindrical outer cover 5 is rotatably connected with a main shaft 9, the upper end of the main shaft 9 is arranged through the detachable upper cover plate 2, and the main shaft 9 A spiral guide groove 12 is provided on the outer side surface, a spiral filter screen 11 is installed in the center of the spiral guide groove 12, a spiral outer cover 10 is installed at the open end of the spiral guide groove 12, a conical collecting cylinder 2 13 is provided on the end of the inner side surface of the cylindrical outer cover 5, and a conical collecting cylinder 18 is rotatably connected to the lower end of the inner side surface of the cylindrical outer cover 5. The lower end surface of the conical collecting cylinder 18 is communicated with the upper part of the spiral guide groove 12, and the outer side surface of the conical collecting cylinder 18 is connected to the spiral outer cover 10.

[0021] Specifically, the raw materials to be screened are fed into the interior of the conical collecting barrel 8 through the feeding pipe 1, and finally fall onto the spiral filter screen 11 through the discharge port at the end of the conical collecting barrel 8. While the material spirally falls on the upper surface of the spiral filter screen 11, the fine material passes through the mesh and enters the interior of the spiral guide groove 12, thereby realizing rapid screening of the material.

[0022] The lower end of the conical collecting cylinder 13 is connected to the coarse material outlet 6, and a guide channel is provided at the lower end of the inner side surface of the main shaft 9. The lower end of the guide channel is connected to the fine material outlet 7. A feed window 14 is opened on the guide channel, and the feed window 14 is connected to the lower part of the spiral guide groove 12.

[0023] Specifically, the conical collecting cylinder 13 is used to collect the coarse material discharged from the tail of the spiral filter 11. The coarse material is collected by the spiral filter 11 and then discharged into the coarse material outlet 6.

[0024] The upper surface of the detachable upper cover plate 2 is provided with a swing mechanism 3 for controlling the main shaft 9 to swing back and forth.

[0025] Specifically, the swing mechanism 3 can drive the main shaft 9 to repeatedly rotate forward and reversely at a small angle, thereby accelerating the downward movement of particles on the upper surface of the spiral filter 11 .

[0026] Furthermore, a ventilation tube 4 is provided on the upper surface of the detachable upper cover plate 2, and the ventilation tube 4 is connected to the external dust bag.

[0027] Specifically, the dust bag can be used to collect dust overflowing through the air vent 4 .

[0028] Furthermore, the main shaft 9 is disposed through the second conical collecting cylinder 13 .

[0029] Specifically, the main shaft 9 is rotatably connected to the conical collecting cylinder 13 .

[0030] Furthermore, the swing mechanism 3 includes a protective cover 32, a guide rail 33 is installed inside the protective cover 32, a slider 34 is slidably connected to the guide rail 33, a rack is installed on the slider 34, a gear 31 is sleeved on the outer side of the main shaft 9, the gear 31 is meshed with the rack, and an electrically controlled telescopic rod 35 is installed inside the protective cover 32, and the telescopic end of the electrically controlled telescopic rod 35 is connected to the outer side of the slider 34.

[0031] Specifically, the electrically controlled telescopic rod 35 drives the slider 34 to perform reciprocating motion, the slider 34 drives the gear 31 to swing back and forth at a small angle through the rack, and the gear 31 drives the main shaft 9 to swing back and forth.

[0032] More specifically, a spring is provided between the outer side surface of the slider 34 and the inner side surface of the protective cover 32 .

[0033] Furthermore, two spiral guide channels adjacent to each other are formed between the spiral outer cover 10 , the spiral filter screen 11 and the spiral guide groove 12 .

[0034] Specifically, the two spiral guide channels are used to transport the filtered finished powder and large-particle slag respectively.

[0035] When in use: the powdered sodium silicate to be filtered is conveyed to the inside of the feeding pipe 1 by a screw conveyor, the powdered sodium silicate enters the inside of the conical collecting cylinder 8 through the feeding pipe 1, and then falls into the upper surface of the spiral filter screen 11 through the opening at the bottom of the conical collecting cylinder 8. While the powdered sodium silicate spirally slides down the upper surface of the spiral filter screen 11, the fine material passes through the mesh holes on the spiral filter screen 11 and enters the bottom of the spiral guide groove 12, thereby realizing rapid filtration of the material.

[0036] Qualified powder enters the feed window 14 through the tail of the spiral guide groove 12, and finally enters the fine material outlet 7 through the guide channel at the lower end of the main shaft 9 for discharge. Large particle waste falls into the conical collecting barrel 13 through the tail of the spiral filter 11, and finally enters the coarse material outlet 6 through the opening at the bottom of the conical collecting barrel 13 for discharge.

[0037] While the material is being filtered, the swing mechanism 3 is started, and the swing mechanism 3 drives the main shaft 9 to rotate forward and reverse at a small angle, thereby accelerating the falling of the material on the outer surface of the spiral filter screen 11 and the spiral guide groove 12. At the same time, the spiral filter screen 11 that oscillates back and forth can effectively alleviate the blockage of its mesh.

[0038] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A screening device for producing powdered sodium silicate, characterized in that: The invention comprises a cylindrical outer cover (5); the lower end surface of the cylindrical outer cover (5) is closed, the upper end surface of the cylindrical outer cover (5) is installed with a detachable upper cover plate (2), the upper surface of the detachable upper cover plate (2) is installed with a feeding pipe (1), the lower end surface of the cylindrical outer cover (5) is provided with a coarse material outlet (6) and a fine material outlet (7), the inner part of the cylindrical outer cover (5) is rotatably connected with a main shaft (9), the upper end of the main shaft (9) is arranged through the detachable upper cover plate (2), and the outer side surface of the main shaft (9) is provided with a spiral guide groove (1) 2), a spiral filter screen (11) is installed at the center of the spiral guide groove (12), a spiral outer cover (10) is installed at the open end of the spiral guide groove (12), a conical collecting tube 2 (13) is provided at the end of the inner side surface of the cylindrical outer cover (5), a conical collecting tube 1 (8) is rotatably connected to the lower end of the inner side surface of the cylindrical outer cover (5), the lower end surface of the conical collecting tube 1 (8) is communicated with the upper part of the spiral guide groove (12), and the outer side surface of the conical collecting tube 1 (8) is connected to the spiral outer cover (10); The lower end of the second conical collecting cylinder (13) is communicated with the coarse material outlet (6), the lower end of the inner side surface of the main shaft (9) is provided with a guide channel, the lower end of the guide channel is communicated with the fine material outlet (7), a feed window (14) is provided on the guide channel, and the feed window (14) is communicated with the lower part of the spiral guide groove (12); The upper surface of the detachable upper cover plate (2) is provided with a swing mechanism (3) for controlling the main shaft (9) to swing back and forth.

2. A screening device for producing powdered sodium silicate according to claim 1, characterized in that: The upper surface of the detachable upper cover plate (2) is provided with a ventilation tube (4), and the ventilation tube (4) is connected to an external dust bag.

3. A screening device for producing powdered sodium silicate according to claim 1, characterized in that: The main shaft (9) is arranged to pass through the second conical collecting cylinder (13).

4. A screening device for producing powdered sodium silicate according to claim 1, characterized in that: The swing mechanism (3) comprises a protective cover (32), a guide rail (33) is installed inside the protective cover (32), a slider (34) is slidably connected to the guide rail (33), a rack is installed on the slider (34), a gear (31) is sleeved on the outer side surface of the main shaft (9), the gear (31) is meshed with the rack, an electric control telescopic rod (35) is installed inside the protective cover (32), and the telescopic end of the electric control telescopic rod (35) is connected to the outer side surface of the slider (34).

5. A screening device for producing powdered sodium silicate according to claim 1, characterized in that: Two spiral guide channels adjacent to each other are formed between the spiral outer cover (10), the spiral filter screen (11) and the spiral guide groove (12).

Images