Limestone screening device

Abstract

The utility model relates to a limestone screening device which comprises a small particle screening device and a large block classifier, the small particle screening device is provided with a small particle limestone outlet and a large block limestone outlet, and the large block limestone outlet is communicated with a feeding port of the large block classifier or arranged opposite to the feeding port of the large block classifier. According to the utility model, small-particle limestone and large-block limestone are screened through the small-particle screener, and then the large-block limestone is classified through the large-block classifier; by means of screening of the small-particle screening device, small-particle limestone is prevented from entering the large-block classifier, flying dust in the large-block classifier can be reduced, the selection range of the large-block classifier is wider, the large-block classifier is not limited to screens which are prone to loss any more, and meanwhile the situation that the limestone is smashed in the screening process due to excessive use of the screens is avoided.

Description

Technical Field

[0001] The utility model relates to the field of limestone production, in particular to a limestone screening device. Background Art

[0002] At present, limestone screening devices mostly use a multi-layer screen structure to screen limestone; the multi-layer screen structure causes excessive dust, and the screen is easily worn. At the same time, excessive use of the screen causes the limestone to be crushed during the screening process.

[0003] For example, the utility model patent "A Screening Machine for Limestone Processing" with the announcement number CN 220879549 U discloses a screening machine for limestone processing. The screening machine for limestone processing includes: a screening box; a plurality of screens, which are all arranged inside the screening box; a plurality of vibration motors, which are respectively arranged at the bottom of the plurality of screens; a plurality of guide hoppers, which are respectively arranged on the outer walls of both sides of the screening box, and a collection frame is correspondingly arranged below the plurality of guide hoppers; a connection port, which is opened at the top of the screening box; a collecting mechanism, which is arranged on the screening box and is used to collect and process the dust generated during the limestone screening process. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provides a limestone screening device, which first screens small-particle limestone and large-block limestone through a small-particle screener, and then classifies the large-block limestone through a large-block classifier.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A limestone screening device comprises a small particle screener and a large block classifier. The small particle screener is provided with a small particle limestone outlet and a large block limestone outlet. The large block limestone outlet is connected to or arranged opposite to a feed inlet of the large block classifier.

[0007] Furthermore, a screen is provided inside the small particle screener, and the screen is provided with a vibrator.

[0008] Furthermore, one end of the screen is rotatably connected to the small particle screener, and the other end of the screen is detachably connected to a connector, the connector is connected to the small particle screener, the small particle screener is provided with a rotator, and the rotator controls the rotational connection between the screen and the small particle screener, the large limestone outlet is arranged at one end where the screen is rotatably connected to the small particle screener, and the small particle limestone outlet is arranged below the screen.

[0009] Furthermore, the vibrator is arranged on the side wall of the screen, and the screen and the connecting piece vibrate along the plane of the screen under the action of the vibrator.

[0010] Furthermore, shaft rods are provided on both the front and rear sides of one end of the screen mesh rotatably connected to the small particle screener, a shaft hole is provided on the small particle screener at a position corresponding to the shaft rod, the shaft rod and the shaft hole are clearance-matched, and an elastic member is provided between the shaft rod and the shaft hole.

[0011] Furthermore, connecting rods are provided on both the front and rear sides of the connecting piece, and connecting holes matching with the connecting rods are provided at positions corresponding to the connecting rods on the small particle screener. The connecting rods and the connecting holes are clearance-matched, and an elastic piece is provided between the connecting rods and the connecting holes.

[0012] Furthermore, the connecting rod is not a cylindrical rod, and the connecting hole is not a circular hole.

[0013] Furthermore, the rotator is a mechanical arm arranged below the screen and the connecting piece, and the mechanical arm includes a first arm and a second arm that are rotatably connected, the first arm is connected to the small particle screener, and the end of the second arm that is not connected to the first arm is arranged below the screen, and a telescopic structure is connected between the middle of the first arm and the middle of the second arm.

[0014] Furthermore, a fan is provided in the bulk classifier, and the fan is arranged below the inlet. The bulk classifier is provided with a plurality of outlets, and the arrangement direction of the outlets is consistent with the wind direction of the fan.

[0015] Furthermore, the feed inlet is provided with an arc-shaped guide plate.

[0016] The beneficial effects of the utility model are:

[0017] First, small-particle limestone and large-block limestone are screened through a small-particle screener, and then the large-block limestone is classified through a large-block classifier. Screening with the small-particle screener can prevent small-particle limestone from entering the large-block classifier, which can reduce dust in the large-block classifier. The large-block classifier has a wider selection range and is no longer limited to easily worn screens. At the same time, it can avoid the crushing of limestone during the screening process due to excessive use of screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model;

[0019] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 It is a sectional axonometric drawing of the utility model;

[0021] Figure 4 for Figure 3The enlarged view of point B in the middle;

[0022] Figure 5 for Figure 3 Enlarged view of point C in the middle.

[0023] In the figure, 1-small particle screener, 2-large block classifier, 3-small particle limestone outlet, 4-large block limestone outlet, 5-feeding port, 6-screen, 7-vibrator, 8-vibration trough, 9-connecting piece, 10-axis rod, 11-axis hole, 12-connecting rod, 13-connecting hole, 14-first arm, 15-second arm, 16-telescopic structure, 17-fan, 18-discharging port, 19-arc guide plate. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0026] Embodiment 1:

[0027] like Figures 1 to 5 As shown, a limestone screening device includes a small particle screener 1 and a large block classifier 2. The small particle screener 1 is provided with a small particle limestone outlet 3 and a large block limestone outlet 4. The large block limestone outlet 4 is connected to or arranged opposite to the feed port 5 of the large block classifier 2.

[0028] First, small-particle limestone and large-block limestone are screened through the small-particle screener 1, and then the large-block limestone is classified through the large-block classifier 2; through the screening of the small-particle screener 1, small-particle limestone is prevented from entering the large-block classifier 2, which can reduce dust in the large-block classifier 2. The large-block classifier 2 has a wider selection range and is no longer limited to the easily worn screen 6. At the same time, it is avoided that the limestone is crushed during the screening process due to excessive use of the screen 6.

[0029] The small particle screener 1 is provided with a screen 6 , and the screen 6 is provided with a vibrator 7 .

[0030] One end of the screen 6 is rotatably connected to the small particle screener 1, and the other end of the screen 6 is detachably connected to a connector 9, and the connector 9 is connected to the small particle screener 1. The small particle screener 1 is provided with a rotator, and the rotator controls the rotational connection between the screen 6 and the small particle screener 1. The large limestone outlet 4 is provided at one end where the screen 6 is rotatably connected to the small particle screener 1, and the small particle limestone outlet 3 is provided below the screen 6.

[0031] The vibrator 7 is arranged on the side wall of the screen 6 , and the screen 6 and the connecting member 9 vibrate along the plane of the screen 6 under the action of the vibrator 7 .

[0032] The small particle screener 1 is provided with a vibration trough 8, and the vibrator 7 is arranged in the vibration trough 8. The vibration trough 8 extends along the trajectory of the vibrator 7 when the screen 6 rotates.

[0033] Axles 10 are provided on both the front and rear sides of one end of the screen 6 which is rotatably connected to the small particle screener 1. An axis hole 11 is provided on the small particle screener 1 at a position corresponding to the axis 10. The axis 10 and the axis hole 11 are clearance-matched, and an elastic member is provided between the axis 10 and the axis hole 11.

[0034] Connecting rods 12 are provided on both the front and rear sides of the connecting member 9. Connecting holes 13 cooperating with the connecting rods 12 are provided at positions corresponding to the connecting rods 12 on the small particle screener 1. The connecting rods 12 and the connecting holes 13 are clearance-matched. An elastic member is provided between the connecting rods 12 and the connecting holes 13.

[0035] The connecting rod 12 is not a cylindrical rod, and the connecting hole 13 is not a circular hole.

[0036] In this embodiment, the connecting rod 12 is a hexagonal rod, and the connecting hole 13 is a hexagonal hole.

[0037] The connecting member 9 is L-shaped.

[0038] The connecting member 9 is provided with a connecting groove, and the bottom of the screen 6 is provided with a connecting pin, and the connecting groove and the connecting pin are interference fit, so as to realize a detachable connection between the screen 6 and the connecting member 9.

[0039] The rotator is a mechanical arm disposed below the screen 6 and the connecting piece 9, and the mechanical arm includes a first arm 14 and a second arm 15 that are rotatably connected. The first arm 14 is connected to the small particle screener 1, and the end of the second arm 15 that is not connected to the first arm 14 is disposed below the screen 6. A telescopic structure 16 is connected between the middle of the first arm 14 and the middle of the second arm 15.

[0040] In this embodiment, the telescopic structure 16 is a gas cylinder or an oil cylinder.

[0041] The bulk classifier 2 is provided with a fan 17 , and the fan 17 is arranged below the inlet 5 . The bulk classifier 2 is provided with a plurality of outlets 18 , and the arrangement direction of the outlets 18 is consistent with the wind direction of the fan 17 .

[0042] Under the blowing action of the fan 17, the large pieces of limestone entering the inlet 5 are affected by the wind, and the heavier large pieces of limestone will fall to the discharge port 18 closer to the inlet 5, and the lighter large pieces of limestone will fall to the discharge port 18 farther from the inlet 5, thereby classifying the large pieces of limestone by weight.

[0043] The feed inlet 5 is provided with an arc-shaped guide plate 19. Under the action of the arc-shaped guide plate, the large pieces of limestone entering the feed inlet 5 fall vertically downward, so that the classification is more accurate.

[0044] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A limestone screening device, characterized in that: The invention comprises a small particle screener and a large block classifier. The small particle screener is provided with a small particle limestone outlet and a large block limestone outlet. The large block limestone outlet is connected with or arranged opposite to the feeding port of the large block classifier.

2. A limestone screening device according to claim 1, characterized in that: A screen is arranged inside the small particle screener, and a vibrator is arranged on the screen.

3. A limestone screening device according to claim 2, characterized in that: One end of the screen is rotatably connected to the small particle screener, and the other end of the screen is detachably connected to a connector, and the connector is connected to the small particle screener. The small particle screener is provided with a rotator, and the rotator controls the rotational connection between the screen and the small particle screener. The large limestone outlet is arranged at one end where the screen is rotatably connected to the small particle screener, and the small particle limestone outlet is arranged below the screen.

4. A limestone screening device according to claim 3, characterized in that: The vibrator is arranged on the side wall of the screen, and the screen and the connecting piece vibrate along the plane of the screen under the action of the vibrator.

5. A limestone screening device according to claim 4, characterized in that: The screen is rotatably connected to the small particle screener at one end, and shafts are arranged on both sides of the front and rear sides. The small particle screener is provided with a shaft hole at a position corresponding to the shaft. The shaft and the shaft hole are clearance-matched, and an elastic member is arranged between the shaft and the shaft hole.

6. A limestone screening device according to claim 4, characterized in that: The front and rear sides of the connecting piece are both provided with connecting rods, and the small particle screener is provided with connecting holes matching with the connecting rods at positions corresponding to the connecting rods. The connecting rods and the connecting holes are clearance-matched, and an elastic piece is provided between the connecting rods and the connecting holes.

7. A limestone screening device according to claim 6, characterized in that: The connecting rod is not a cylindrical rod, and the connecting hole is not a circular hole.

8. A limestone screening device according to claim 3, characterized in that: The rotator is a mechanical arm arranged below the screen and the connecting piece, and the mechanical arm includes a first arm and a second arm which are rotatably connected. The first arm is connected to the small particle screener, and the end of the second arm which is not connected to the first arm is arranged below the screen. A telescopic structure is connected between the middle of the first arm and the middle of the second arm.

9. A limestone screening device according to claim 1, characterized in that: The bulk classifier is provided with a fan, which is arranged below the inlet. The bulk classifier is provided with a plurality of outlets, and the arrangement direction of the outlets is consistent with the wind direction of the fan.

10. A limestone screening device according to claim 1, characterized in that: The feeding port is provided with an arc-shaped guide plate.

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