Multi-layer spiral medium sand screening device

Abstract

The utility model relates to the technical field of medium sand screening, in particular to a multi-layer spiral type medium sand screening device which comprises a barrel body, a spiral screen plate used for filtering medium sand is arranged in the barrel body, a filtering assembly used for filtering impurities is arranged on the barrel body, trapezoid holes used for filtering the medium sand are formed in the spiral screen plate, and the spiral screen plate is provided with a plurality of spiral holes. Rib plates used for buffering and intercepting medium sand are arranged on the spiral sieve plate. The trapezoidal holes are formed in the spiral sieve plate, so that the contact degree of medium sand and the spiral sieve plate is increased, and the rib plates are arranged on the spiral sieve plate, so that the medium sand can be comprehensively sieved when flowing; according to the medium sand screening device, impurities in medium sand can be intercepted through a filter screen, the medium sand can be filtered again through a filter cylinder, the medium sand can be stirred when a stirring plate rotates, the cleanliness of the medium sand can be guaranteed when the medium sand is screened, and then the medium sand screening efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to middle sand screening technical field especially, relates to a multilayer spiral formula middle sand screening device. BACKGROUND

[0002] The middle sand is the sandstone of fineness modulus 3.0mm-2.3mm, and the average particle size is 0.5mm-0.25mm.

[0003] The middle sand is screened on the spiral screen plate, and the filter hole is formed in the spiral screen plate to filter the middle sand, so that the middle sand is filtered when flowing on the spiral screen plate, and the filter hole on the spiral screen plate is mostly circular structure, and a large amount of middle sand flows, so that the upper middle sand is difficult to contact the filter hole, the contact degree of the spiral screen plate and the middle sand is affected, and the middle sand is difficult to be fully screened. UTILITY MODEL CONTENT

[0004] The utility model provides a multilayer spiral formula middle sand screening device to solve the problem that the prior art is not filtered before middle sand screening.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A multilayer spiral formula middle sand screening device, comprising a barrel, and the barrel is provided with a spiral screen plate for filtering the middle sand, and the barrel is provided with a filter assembly for filtering impurities.

[0007] Preferably, the spiral screen plate is provided with a trapezoidal hole for filtering the middle sand, the spiral screen plate is provided with a rib plate for buffering and intercepting the middle sand, the barrel is provided with a through hole for discharging fine sand, and the spiral screen plate is provided with a pipeline for conveying the middle sand.

[0008] Preferably, the filter assembly comprises a guide rod fixedly installed on the barrel, a guide block is slidably sleeved on the guide rod, a filter frame and a support rod are integrally connected between the two guide blocks, a spring cooperating with the guide rod is welded between the guide block and the barrel, a filter screen for intercepting impurities is arranged on the filter frame, a filter cartridge cooperating with the filter screen and filtering the middle sand is arranged on the filter frame, and a telescopic rod connected with the support rod is installed on the barrel.

[0009] Preferably, the guide rod is vertically arranged at both sides of the filter frame, and the spring is sleeved on the guide rod.

[0010] Preferably, the filter frame is horizontally arranged above the spiral screen plate, the filter cylinder is integrally connected with a connecting lug, and the connecting lug is threadedly connected with a locking bolt connected with the filter frame.

[0011] Preferably, the filter frame is fixedly installed with a motor, and the motor output end is fixedly connected with a rotating shaft, the rotating shaft is fixedly installed with three stirring plates for stirring the medium sand, and the stirring plates are provided with brushes matched with the medium sand.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The trapezoidal hole can intercept the medium sand, thereby increasing the contact degree of the medium sand and the spiral screen plate, and the rib plate can intercept the falling medium sand, thereby enabling the medium sand to be fully screened when flowing.

[0014] 2. The filter screen can intercept impurities in the medium sand, the filter cylinder can filter the medium sand again, and the stirring plate can stir the medium sand when rotating, thereby ensuring the cleanliness of the medium sand when screening and improving the efficiency of medium sand screening. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model provides a kind of multi-layer spiral medium sand screening device structure schematic view;

[0016] Figure 2 The utility model provides a kind of multi-layer spiral medium sand screening device barrel section view;

[0017] Figure 3 The utility model provides a kind of multi-layer spiral medium sand screening device section view;

[0018] Figure 4 The utility model provides a kind of multi-layer spiral medium sand screening device section view.

[0019] In the drawing: 1, barrel body;2, spiral screen plate;3, rib plate;4, guide rod;5, guide block;6, filter frame;7, spring;8, support rod;9, telescopic rod;10, filter screen;11, filter cylinder;12, motor;13, rotating shaft;14, stirring plate;15, brush. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Refer toFigures 1-4 The utility model provides a multi -layer spiral formula medium sand screening device, including the barrel 1, and be equipped with the spiral screen plate 2 who is used to filter medium sand in the barrel 1,

[0022] The spiral screen plate 2 is provided with trapezoidal holes for filtering medium sand. By providing trapezoidal holes on the spiral screen plate 2, the trapezoidal holes can intercept large medium sand, and small medium sand slides in the trapezoidal holes quickly, thereby improving the falling speed of medium sand. The spiral screen plate 2 is provided with a rib plate 3 for buffering and intercepting medium sand. By uniformly distributing the rib plate 3 on the rib plate 3, the rib plate 3 can intercept the falling medium sand, thereby enabling the medium sand to be fully screened when falling.

[0023] The barrel 1 is provided with a through hole for discharging fine sand. The spiral screen plate 2 is provided with a pipeline for conveying medium sand. The through hole can convey small medium sand, and the pipeline can convey large medium sand.

[0024] The barrel 1 is provided with a filtering assembly for filtering impurities.

[0025] The filtering assembly includes a guide rod 4 fixedly installed on the barrel 1. Guide blocks 5 are slidably sleeved on the guide rod 4. A filter frame 6 and a support rod 8 are integrally connected between the two guide blocks 5. Springs 7 are welded between the guide blocks 5 and the barrel 1 and cooperate with the guide rod 4. The guide rod 4 guides the guide blocks 5, enabling the guide blocks 5 to smoothly pull the filter frame 6 and the support rod 8 when moving. The springs 7 can buffer the moving guide blocks 5, ensuring the stability of the filter frame 6 when moving.

[0026] The filter frame 6 is provided with a filter screen 10 for intercepting impurities. The filter frame 6 is provided with a filter cartridge 11 cooperating with the filter screen 10 and filtering medium sand. The barrel 1 is provided with a telescopic rod 9 connected to the support rod 8. The telescopic rod 9 drives the filter screen 10 to reciprocate, thereby dynamically filtering medium sand. The filter cartridge 11 can filter medium sand again, intercepting impurities in the medium sand, thereby ensuring the cleanliness of the medium sand.

[0027] The guide rod 4 is vertically arranged on both sides of the filter frame 6. The springs 7 are sleeved on the guide rod 4. The filter frame 6 is horizontally arranged above the spiral screen plate 2. The filter cartridge 11 is integrally connected with a connecting lug, and the connecting lug is threadedly connected with a locking bolt connected with the filter frame 6.

[0028] The filter frame 6 is fixedly installed with a motor 12, and the output end of the motor 12 is fixedly connected with a rotating shaft 13. Three stirring plates 14 for stirring medium sand are fixedly installed on the rotating shaft 13, and the stirring plates 14 are provided with brushes 15 cooperating with the medium sand.

[0029] The motor 12 drives the rotating shaft 13 to rotate, and the rotating shaft 13 drives the stirring plate 14 to stir the medium sand, and the brush 15 can stir the medium sand when rotating, so that the medium sand can uniformly fall down;

[0030] It should be noted that the specific type and specification of the telescopic rod 9 and the motor 12 need to be determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, so it is not described in detail.

[0031] The function principle of the utility model can be described by the following operation mode:

[0032] The medium sand is put into the filter frame 6;

[0033] The telescopic rod 9 drives the supporting rod 8 to reciprocate, the supporting rod 8 drives the guide block 5 to slide on the guide rod 4, the spring 7 is stressed, the guide block 5 drives the filter frame 6 to reciprocate, and the medium sand can be filtered through the filter screen 10 and the filter cylinder 11, so that the medium sand falls on the spiral sieve plate 2;

[0034] The motor 12 drives the rotating shaft 13 to rotate, and the rotating shaft 13 drives the stirring plate 14 to stir the medium sand, and the brush 15 can scratch the medium sand in the filter frame 6, so that the medium sand can uniformly fall down;

[0035] After the medium sand falls on the spiral sieve plate 2, the trapezoidal holes in the spiral sieve plate 2 can screen the medium sand, so that the medium sand can be intercepted by the trapezoidal holes, and the fine sand is discharged out of the barrel 1 through the trapezoidal holes and the through holes;

[0036] When the medium sand flows on the spiral sieve plate 2, the rib plate 3 on the spiral sieve plate 2 can intercept the medium sand, so that the medium sand can be fully screened when falling.

[0037] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A multi-layer spiral medium sand screening device, comprising a barrel (1), and a spiral screen plate (2) is arranged in the barrel (1) to filter the medium sand, characterized in that, The barrel body (1) is provided with a filter assembly for filtering impurities; The filter assembly comprises a guide rod (4) fixedly installed on the barrel body (1), a guide block (5) slidably sleeved on the guide rod (4), a filter frame (6) and a supporting rod (8) integrally connected between the two guide blocks (5), and a spring (7) welded between the guide block (5) and the barrel body (1) and matched with the guide rod (4); the filter frame (6) is provided with a filter screen (10) for intercepting impurities, and a filter cylinder (11) matched with the filter screen (10) and filtering the sand; and the barrel body (1) is provided with a telescopic rod (9) connected with the supporting rod (8).

2. A multi-deck spiral sand sifting device according to claim 1, characterized in that, The spiral sieve plate (2) is provided with trapezoidal holes for filtering the sand, and is provided with rib plates (3) for buffering and intercepting the sand; the barrel body (1) is provided with through holes for discharging fine sand; and the spiral sieve plate (2) is provided with pipelines for conveying the sand.

3. A multi-deck spiral sand sifting device according to claim 1, characterized in that, The guide rod (4) is vertically arranged on both sides of the filter frame (6), and the spring (7) is sleeved on the guide rod (4).

4. A multi-deck spiral sand sifting device according to claim 1, characterized in that, The filter frame (6) is horizontally arranged above the spiral sieve plate (2), the filter cylinder (11) is integrally connected with a connecting lug, and the connecting lug is threadedly connected with a locking bolt connected with the filter frame (6).

5. A multi-deck spiral sand sifting device according to claim 1, characterized in that, The filter frame (6) is fixedly installed with a motor (12), and the output end of the motor (12) is fixedly connected with a rotating shaft (13), the rotating shaft (13) is fixedly installed with three stirring plates (14) for stirring the sand, and the stirring plates (14) are provided with brushes (15) matched with the sand.

Images