Nano calcium carbonate raw material screening device

Abstract

The utility model discloses a nanometer calcium carbonate raw material screening device, which relates to the technical field of nanometer calcium carbonate raw material treatment and comprises a bottom plate, a screening box is fixed at the top of the bottom plate through a spring telescopic rod, a vibration motor is fixed at the bottom of the screening box, and a storage groove is arranged at the bottom of the inner side of the screening box. According to the nano calcium carbonate raw material screening device, the jet head is contained in the containing groove in the normal state, raw materials are completely prevented from entering the jet head in the screening process, the service life of the jet head is greatly prolonged, the equipment maintenance cost is reduced, and stable operation of the cleaning function is guaranteed; when the risk that the screen is blocked occurs, the hollow pipe driven by the servo motor and the air spraying head extend out of the containing groove to be located below the filter screen, the high-pressure air pump conducts powerful air spraying cleaning on the screen through the air spraying head, the problem that the screen is blocked is effectively solved, efficient and continuous screening is maintained, the shutdown maintenance time is shortened, and the production benefit is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanometer calcium carbonate raw material processing technical field, specifically is a nanometer calcium carbonate raw material screening device. BACKGROUND

[0002] Nanometer calcium carbonate is widely used in industrial production, and the screening of raw materials is a key link in the production process. The traditional nanometer calcium carbonate raw material screening device is prone to mesh blockage on the screen. It is difficult to clean the raw materials in the mesh through the vibration force of the device itself, resulting in a gradual decline in the screening efficiency of the device during use.

[0003] In view of the above problems, it is urgent to make innovative design on the basis of the original nanometer calcium carbonate raw material screening device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a nanometer calcium carbonate raw material screening device to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a nanometer calcium carbonate raw material screening device, including the bottom plate, the top of the bottom plate is fixed with the screening box through the spring telescopic link, the bottom of the screening box is fixed with the vibration motor, the bottom of the inside of the screening box is provided with the accommodation groove, the inside of the screening box is fixed with the screen, the height of the screen is higher than the height of the accommodation groove;

[0006] The inside of the accommodation groove is rotatably installed with a first rotating shaft through a bearing, the outer side of the first rotating shaft is provided with a movable block, the inside of the movable block is penetrated with a guide rod, the end of the guide rod is fixedly connected with the inner wall of the accommodation groove, the end of the first rotating shaft is penetrated with the side wall of the screening box and is fixedly connected with the output end of the servo motor, the outer wall of the servo motor is fixed to the outer wall of the screening box through a mounting plate, the side of the movable block and the side of the hollow tube are both fixed with a fixed plate, the second rotating shaft is rotatably installed between the fixed plates through a bearing, the outer wall of the second rotating shaft is fixedly connected with the inner wall of the end of the supporting plate, the top of the hollow tube is provided with a jet head at equal intervals, the bottom of the hollow tube is provided with a hose, the end of the hose is connected with the air outlet end of the high-pressure air pump, the air inlet end of the high-pressure air pump is provided with an air inlet pipe, the end of the air inlet pipe is penetrated with the side wall of the screening box and is located outside the screening box, and the jet head is located in the inside of the accommodation groove.

[0007] Preferably, the two ends of the first rotating shaft in the inside of the accommodation groove are provided with opposite threads, the first rotating shaft is threadedly connected with the movable block, the movable block is slidingly connected with the guide rod, and the movable block and the supporting plate are both symmetrically distributed with two center axes of the hollow tube.

[0008] Preferably, the bottom, the screen, the first rotating shaft, the movable block, the guide rod, the hollow pipe and the support plate in the screening box are all designed to be inclined and parallel to each other.

[0009] Preferably, a feeding bin is arranged above the highest part of the screen on the top of the screening box.

[0010] Preferably, a discharge pipe is arranged on the side of the screening box close to the lowest part of the screen and the bottom of the side of the screening box, a sealing cover is clamped on the end of the discharge pipe, and the sealing cover and the discharge pipe are fixedly connected through bolts.

[0011] Preferably, the spring telescopic rod comprises an inner cylinder, a spring and an inner rod, the side of the top of the bottom plate is fixedly connected with the inner cylinder, the bottom of the inner cylinder is fixedly connected with the spring, the upper end of the spring is fixedly connected with the inner rod, the upper end of the inner rod penetrates through the top of the inner cylinder and is fixedly connected with the side of the bottom of the screening box, and the inner cylinder and the inner rod are interactively connected.

[0012] Preferably, the bottom of the bottom plate is fixedly connected with a rubber pad.

[0013] Compared with the prior art, the nano calcium carbonate raw material screening device has the advantages that the air jet head is normally accommodated in the accommodation groove, so that the raw material is completely prevented from entering the air jet head during the screening process, the service life of the air jet head is greatly prolonged, the equipment maintenance cost is reduced, and stable operation of the cleaning function is ensured; when the screen is at the risk of being blocked, the hollow pipe and the air jet head driven by the servo motor are stretched out from the accommodation groove and located below the filter screen, the high-pressure air pump cleans the screen by strong air jet through the air jet head, the problem of screen blockage is effectively solved, efficient and continuous screening is maintained, downtime for maintenance is reduced, and production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the sectional structure of the utility model;

[0015] Figure 2 It is a front view of the sectional structure of the utility model; Figure 1 It is an enlarged structure schematic view of position A in the utility model;

[0016] Figure 3 It is a sectional installation structure schematic view of the hollow pipe in the utility model from the side;

[0017] Figure 4 It is a sectional installation structure schematic view of the first rotating shaft in the utility model from the side;

[0018] Figure 5 It is a front view of the sectional structure of the utility model; Figure 4 It is an enlarged structure schematic view of position B in the utility model;

[0019] Figure 6 It is a top view of the installation structure schematic view of the hollow pipe in the utility model;

[0020] Figure 7 It is a schematic diagram of the installation structure of the sectional view of the sealing cover.

[0021] In the figure: 1, bottom plate; 2, screening box; 3, vibration motor; 4, storage groove; 5, screen; 6, first rotating shaft; 7, movable block; 8, servo motor; 9, guide rod; 10, hollow pipe; 11, fixed plate; 12, second rotating shaft; 13, support plate; 14, air jet head; 15, high-pressure air pump; 16, hose; 17, air inlet pipe; 18, feeding bin; 19, discharge pipe; 20, sealing cover; 21, bolt; 22, inner cylinder; 23, spring; 24, inner rod; 25, rubber pad. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-7The utility model provides a technical scheme: a kind of nanometer calcium carbonate raw material screening device, including bottom plate 1, the top of bottom plate 1 is fixed with screening box 2 by spring telescopic link, the top of screening box 2 is located above the highest place of screen 5 and is provided with feeding bin 18, the bottom of screening box 2 is fixed with vibration motor 3, the bottom of screening box 2 inside is provided with receiving groove 4, the inside of screening box 2 is fixed with screen 5, the height of screen 5 is higher than the height of receiving groove 4, first shaft 6 is rotatably installed in the inside of receiving groove 4 by bearing, the outside of first shaft 6 is provided with movable block 7, the inside of movable block 7 is penetrated by guide rod 9, the end of guide rod 9 is fixedly connected with the inner wall of receiving groove 4, the end of first shaft 6 is fixedly connected with the output end of servo motor 8 by penetrating the side wall of screening box 2, the outer wall of servo motor 8 is fixed to the outer wall of screening box 2 by mounting plate, one side of movable block 7 and one side of hollow tube 10 are all fixed with fixed plate 11, second shaft 12 is rotatably installed between fixed plate 11 by bearing, the inner wall of the end of support plate 13 is fixedly connected with the outer wall of second shaft 12, hollow tube 10 is provided with jet head 14 at top at equal intervals, the bottom of hollow tube 10 is provided with hose 16, the end of hose 16 is connected with the air outlet end of high pressure gas pump 15, the air inlet end of high pressure gas pump 15 is provided with air inlet pipe 17, the end of air inlet pipe 17 penetrates the side wall of screening box 2 and is located in the outside of screening box 2, jet head 14 is located in the inside of receiving groove 4, spring telescopic link cooperates with vibration motor 3, so that screening box 2 generates compound vibration, enhances material dispersion effect, improves screening efficiency, the setting of receiving groove 4 provides receiving space for jet head 14, prevents raw materials from entering the inside of jet head 14, realizes the flexible movement of hollow tube 10 and jet head 14 by transmission mechanism formed by first shaft 6, movable block 7, guide rod 9, servo motor 8 etc., can effectively clean screen 5 when needed.

[0024] The opposite threads are provided on the two ends of first shaft 6 located in the inside of receiving groove 4, first shaft 6 is threadedly connected with movable block 7, movable block 7 is slidably connected with guide rod 9, movable block 7 and support plate 13 are both symmetrically distributed with two about the central axis of hollow tube 10, the opposite threads of the two ends of first shaft 6 are designed so that when rotating, it can drive two movable blocks 7 to make relative or opposite linear motion along guide rod 9, to further control the extension and storage actions of hollow tube 10.

[0025] The bottom in screening box 2, screen 5, first shaft 6, movable block 7, guide rod 9, hollow tube 10 and support plate 13 are all designed as inclined parallel, and the inclined parallel design utilizes gravity to make materials naturally slide down during screening process, to speed up the moving speed of materials on screen 5, to improve screening efficiency.

[0026] The side of the screening box 2 near the lowest part of the screen 5 and the bottom of the side of the screening box 2 are provided with discharge pipes 19, the end of the discharge pipe 19 is clamped with a sealing cover 20, the sealing cover 20 and the discharge pipe 19 are fixedly connected through a bolt 21, so that the sealing cover 20 can be detached from the discharge pipe 19.

[0027] The spring telescopic rod comprises an inner cylinder 22, a spring 23 and an inner rod 24, the inner cylinder 22 is fixed on the side of the top of the bottom plate 1, the spring 23 is fixed on the bottom in the inner cylinder 22, the upper end of the spring 23 is fixed with the inner rod 24, the upper end of the inner rod 24 is fixedly connected with the bottom of the screening box 2 through the top of the inner cylinder 22, and the inner cylinder 22 and the inner rod 24 are interactively connected.

[0028] The bottom of the bottom plate 1 is fixed with a rubber pad 25, the rubber pad 25 plays a role of shock absorption and anti-skid, and reduces the influence of vibration generated during the operation of the device on the surrounding environment.

[0029] Working principle: when the nano calcium carbonate raw material screening device is used, first, the vibration motor 3 starts to work, the vibration force generated is transmitted to the screening box 2 through the spring telescopic rod, the spring telescopic rod is composed of the inner cylinder 22, the spring 23 and the inner rod 24, and the structure makes the screening box 2 produce composite vibration, thereby enhancing the material dispersion effect.

[0030] The nano calcium carbonate raw material is put into the feeding bin 18, since the inner bottom of the screening box 2, the screen 5, the first rotating shaft 6, the movable block 7, the guide rod 9, the hollow pipe 10 and the supporting plate 13 are all designed to be inclined and parallel to each other, under the vibration of the screening box 2 and the action of gravity, the raw material continuously jumps on the screen 5 and moves to the lower part of the screen 5, in this process, the nano calcium carbonate raw material smaller than the aperture of the screen 5 passes through the screen 5 and falls into the bottom of the screening box 2, and the raw material larger than the aperture of the screen 5 slides along the screen 5 and is finally discharged from the discharge pipe 19 near the lowest part of the screen 5.

[0031] When normal screening is performed, the hollow pipe 10 and the air jet head 14 are accommodated in the accommodation groove 4, so as to avoid the raw material from entering the inside of the air jet head 14, when the screening efficiency is reduced and the screen 5 is blocked, the servo motor 8 is started, the servo motor 8 drives the first rotating shaft 6 to rotate, due to the action of the thread, the two movable blocks 7 move linearly in opposite directions or in the same direction under the constraint of the guide rod 9, the movable block 7 and one side of the hollow pipe 10 are both fixed with the fixed plate 11, the fixed plate 11 is connected with the supporting plate 13 through the second rotating shaft 12, so that the movement of the movable block 7 drives the hollow pipe 10 to move out of the accommodation groove 4 through the supporting plate 13.

[0032] At the same time, the high-pressure air pump 15 works, the outside air enters through the air inlet pipe 17, reaches the hollow pipe 10 through the hose 16, and is sprayed out from the top evenly distributed air jet head 14 at high speed, the screen 5 is cleaned by all-round air jet, the raw materials clogging the screen 5 mesh are blown off, and the screening performance of the screen 5 is restored.

[0033] After cleaning, the servo motor 8 reverses, drives the movable block 7 to move reversely, the hollow pipe 10 and the air jet head 14 are re-stored into the storage groove 4, and normal screening work is continued.

[0034] After screening, the materials with different particle sizes are collected through the corresponding position of the discharge pipe 19, the material with large particle size is discharged from the discharge pipe 19 close to the lowest part of the screen 5, and the material with small particle size is discharged from the discharge pipe 19 at the bottom of the screening box 2.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A nano-calcium carbonate raw material screening device, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixed with a screening box (2) by a spring telescopic rod. The bottom of the screening box (2) is fixed with a vibration motor (3). The bottom of the inner side of the screening box (2) is provided with a storage groove (4). The inside of the screening box (2) is fixed with a screen (5). The height of the screen (5) is higher than the height of the storage groove (4). The first rotating shaft (6) is rotatably mounted inside the receiving trough (4) via a bearing. A movable block (7) is provided on the outside of the first rotating shaft (6). A guide rod (9) passes through the inside of the movable block (7). The end of the guide rod (9) is fixedly connected to the inner wall of the receiving trough (4). The end of the first rotating shaft (6) passes through the side wall of the screening box (2) and is fixedly connected to the output end of the servo motor (8). The outer wall of the servo motor (8) is fixed to the outer wall of the screening box (2) via a mounting plate. A fixing plate (11) is fixed on one side of the movable block (7) and one side of the hollow tube (10). A second rotating shaft (12) is rotatably mounted between the two parts via bearings. The outer wall of the second rotating shaft (12) is fixedly connected to the inner wall of the end of the support plate (13). The top of the hollow tube (10) is provided with jet nozzles (14) at equal intervals. The bottom of the hollow tube (10) is provided with a flexible hose (16). The end of the flexible hose (16) is connected to the outlet of the high-pressure air pump (15). The inlet end of the high-pressure air pump (15) is provided with an inlet pipe (17). The end of the inlet pipe (17) penetrates the side wall of the screening box (2) and is located outside the screening box (2). The jet nozzles (14) are located inside the receiving trough (4).

2. The nano-calcium carbonate raw material screening device according to claim 1, characterized in that: The first rotating shaft (6) is provided with opposite threads at both ends inside the receiving groove (4). The first rotating shaft (6) and the movable block (7) are threadedly connected. The movable block (7) and the guide rod (9) are slidably connected. The movable block (7) and the support plate (13) are symmetrically distributed in two places about the central axis of the hollow tube (10).

3. The nano-calcium carbonate raw material screening device according to claim 1, characterized in that: The bottom, screen (5), first rotating shaft (6), movable block (7), guide rod (9), hollow tube (10) and support plate (13) of the screening box (2) are all designed to be inclined and parallel to each other.

4. The nano-calcium carbonate raw material screening device according to claim 1, characterized in that: The top of the screening box (2) is located above the highest point of the screen (5) and a feeding bin (18) is provided.

5. The nano-calcium carbonate raw material screening device according to claim 1, characterized in that: The screening box (2) is provided with a discharge pipe (19) at the lowest point of the screen (5) on one side and at the bottom of the screening box (2) on the other side. The end of the discharge pipe (19) is fitted with a sealing cap (20). The sealing cap (20) and the discharge pipe (19) are fixedly connected by bolts (21).

6. The nano-calcium carbonate raw material screening device according to claim 1, characterized in that: The spring telescopic rod includes an inner cylinder (22), a spring (23) and an inner rod (24). The inner cylinder (22) is fixed to the top side of the bottom plate (1). The spring (23) is fixed to the bottom of the inner cylinder (22). The inner rod (24) is fixed to the upper end of the spring (23). The upper end of the inner rod (24) passes through the top of the inner cylinder (22) and is fixedly connected to the bottom side of the screening box (2). The inner cylinder (22) and the inner rod (24) are interactively connected.

7. The nano-calcium carbonate raw material screening device according to claim 1, characterized in that: A rubber pad (25) is fixed to the bottom of the base plate (1).

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