CN209903685U - PVC grain cooling device with grading function - Google Patents

Abstract

The utility model provides a PVC granule cooling device with a grading function, which belongs to the field of PVC granulation production and comprises a multi-stage cyclone separator and a gravity screening device, the multi-stage cyclone separator comprises a plurality of cyclone separators, the plurality of cyclone separators are connected with the gravity screening device through a high-speed fan and a pipeline, the gravity screening device comprises a barrel body, a feed inlet, an air outlet, a discharge outlet, a baffle plate, a screening net and a guide plate, the upper end of the barrel body is provided with a feed inlet which is horizontally connected, a low-speed air outlet which is inclined at a certain included angle is arranged above the feed inlet, the baffle fix inside the staving and divide into finished product district and semi-manufactured goods district with staving inside, the discharge gate fix respectively in the bottom in finished product district and semi-manufactured goods district, have simple structure, hierarchical efficiency is high, improves product quality, easy operation maintenance's advantage.

Description

PVC grain cooling device with grading function

Technical Field

The utility model belongs to PVC granulation production field especially relates to a PVC grain cooling device with hierarchical function.

Background

The current production process of PVC granulation is to extrude and cut into granules by an extruder, the cut granules are cooled by a pipeline air cooling device, the granules are conveyed in a pipeline by air flow, and a multi-stage cyclone separator is needed to cool in order to reduce the temperature of the granules to the temperature meeting the packaging temperature. The pellets are prone to clumping and sticking together when not fully cooled, resulting in clumping or caking of the cooled crumb. Therefore, the cooled granules need to be crushed by a crusher, plastic granules mixed with colloidal particle agglomeration in the granules are crushed, and the crushed complete granular granules are packaged. At present, all PVC granules need be broken by a breaker, which causes the problems of long breaking time, low efficiency and high energy consumption.

SUMMERY OF THE UTILITY MODEL

Based on the problems existing in the prior art, the utility model provides a PVC granule cooling device with a grading function, which comprises a multi-stage cyclone separator and a gravity screening device, the multi-stage cyclone separator comprises a plurality of cyclone separators, the plurality of cyclone separators are connected with the gravity screening device through a high-speed fan and a pipeline, the gravity screening device comprises a barrel body, a feed inlet, an air outlet, a discharge outlet, a baffle plate, a screening net and a guide plate, the upper end of the barrel body is provided with a feed inlet which is horizontally connected, a low-speed air outlet which is inclined at a certain included angle is arranged above the feed inlet, the baffle fix inside the staving and divide into finished product district and semi-manufactured goods district with staving inside, the discharge gate fix respectively in the bottom in finished product district and semi-manufactured goods district, have simple structure, hierarchical efficiency is high, improves product quality, easy operation maintenance's advantage.

The utility model discloses a following detailed technical scheme reaches the purpose:

a PVC granule cooling device with a grading function comprises a multi-stage cyclone separator and a gravity screening device, wherein the multi-stage cyclone separator comprises a plurality of cyclone separators, the cyclone separators are sequentially connected with a pipeline through a high-speed fan, the last cyclone separator is connected with the gravity screening device through the high-speed fan and the pipeline, the gravity screening device comprises a barrel body, a feeding hole, an air outlet, a discharging hole, a baffle plate and a cover plate, the side surface of the upper end of the barrel body is provided with the horizontally connected feeding hole, the air outlet is arranged on one side of the top of the barrel body, which is far away from the feeding hole, the other side of the top of the barrel body is provided with a movable cover plate, the cover plate is connected with the barrel body through a hinge, the top of the cover plate is provided with a low-frequency fan, an air outlet pipeline of the, the baffle fix inside finished product district and the semi-manufactured goods district of dividing into of staving inside of staving, the bottom in finished product district and semi-manufactured goods district respectively is provided with a discharge gate, carries out classification treatment with the plastic pellet through gravity screening plant, and the solid particle that is different according to size and weight is in fluid medium's settling velocity difference and carry out the classification, gets rid of the micelle caking from the aggregate and carries out the breakage alone again, has simple structure, and classification efficiency is high, improves product quality, easy operation maintenance's advantage.

Wherein, a PVC grain cooling device with hierarchical function still includes screening net and guide plate, screening net and guide plate fix in semi-manufactured goods district, screening net and guide plate one end activity joint respectively on the baffle, the other end is connected to the support through the pivot on, the support is fixed again at the staving inner wall, screening net is located the guide plate top, screening net leans on the one end downward slope of staving, the guide plate leans on the one end downward slope to the baffle.

Wherein, open the position top that baffle and guide plate contacted has the notch, can further sieve the aggregate that falls into semi-manufactured goods district again through screening the net, the aggregate can pass and sieve the net and fall into the finished product district on the guide plate and through the notch.

Wherein, the screening net adopt square or circular sieve mesh, square or circular sieve mesh are favorable to circular particulate matter to pass through but are unfavorable for gluing and be the micelle caking of bar and pass through.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. carry out inertia classification processing with the plastic pellet through gravity screening plant, the micelle caking that utilizes to cohere is different with the weight and the size of finished product aggregate, reduces the air current velocity of flow suddenly and when the air outlet blows off cold wind and changes the air current flow direction, and the micelle caking of great granule is less and drops at the semi-manufactured goods district and further cools off simultaneously at gravity and inertial force effect down direction of motion deflection, has simple structure, and classification efficiency is high, characteristics that the energy consumption is low.

2. Set up screening net and guide plate and can further sieve under the condition of the material that reduces before sieving, sieve the micelle agglomerate and carry out crushing work on next step to semi-manufactured goods district, improved screening efficiency and sent back the finished product district with the finished product aggregate simultaneously, reduce the material volume that needs the breakage, improve product ejection of compact speed and finished product quality.

Drawings

FIG. 1 is a schematic structural diagram of a gravity sieving device with a grading function PVC granule cooling device.

FIG. 2 is a schematic structural diagram of a PVC pellet cooling device with a grading function.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The PVC granule cooling device with the grading function shown in the attached figures 1 to 2 comprises a multi-stage cyclone separator and a gravity screening device 20, wherein the multi-stage cyclone separator comprises a plurality of cyclone separators 10, the cyclone separators 10 are sequentially connected with a pipeline through a high-speed fan 30, the last cyclone separator 10 is connected with the gravity screening device 20 through the pipeline through the high-speed fan 30, the gravity screening device comprises a barrel body 21, a feeding hole 22, an air outlet 23, a discharging hole 24, a baffle 25 and a cover plate 26, the feeding hole 22 which is horizontally connected is arranged on the side face of the upper end of the barrel body 21, the air outlet 23 is arranged on one side, far away from the feeding hole 22, of the top of the barrel body 21, the movable cover plate 26 is arranged on the other side of the top of the barrel body 21, the cover plate 26 is connected with the barrel body 21 through a hinge, and, the air outlet pipeline of the low-frequency fan 40 is inserted into the barrel body 21, the outlet wind direction and the feed inlet 22 are obliquely arranged at a certain included angle, the baffle 25 is fixed inside the barrel body 21 and divides the interior of the barrel body 21 into a finished product area 21a and a semi-finished product area 21b, and the bottom of each of the finished product area 21a and the semi-finished product area 21b is provided with a discharge hole 24.

Preferably, the PVC granule cooling device with the grading function further comprises a screening net 27 and a guide plate 28, the screening net 27 and the guide plate 28 are fixed in the semi-finished product area 21b, one ends of the screening net 27 and the guide plate 28 are movably clamped on the baffle 25 respectively, the other ends of the screening net 27 and the guide plate 28 are connected to the support through rotating shafts, the support is fixed on the inner wall of the barrel body 21, the screening net 27 is located above the guide plate 28, one end, close to the barrel body 21, of the screening net 27 inclines downwards, and one end, close to the baffle 25, of the guide plate 28 inclines downwards.

Preferably, the baffle 25 is provided with a notch 29 at a position where it contacts the baffle 28.

Preferably, the screening net 27 adopts circular screen holes.

Based on the preferred scheme, the cut granules enter the gravity screening device 20 from the multistage cyclone separator 10 through the high-speed fan 30 and the pipeline, and when entering the barrel body 21 from the feed inlet 22 at a high speed, cold air in the air outlet 23 obliquely above is blown out, so that the movement directions of air flow and granules deflect, the movement direction deflection of colloidal particle agglomeration is small due to large inertia, the colloidal particle agglomeration enters the semi-finished product area 21b, and the granules deflect and enter the finished product area 21a along with the movement track of the air flow; and the granule that drops into semi-manufactured goods district 21b sieves through the screening board, granule passes circular sieve mesh and drops on guide plate 28 and the landing is to notch 29, the finished product case is collected to the granule, and the micelle caking is because can't fall between guide plate 28 and staving 21 through circular sieve mesh landing, the hole between support and guide plate 28 falls in semi-manufactured goods district 21 b's bottom, the micelle caking enters into the breaker through discharge gate 24 of semi-manufactured goods district 21b bottom and carries out the breakage back rethread feed inlet 22 and gets into gravity screening plant 20 and sieve again. The granular materials are taken as finished products and enter a hopper from a discharge port 24 at the bottom of the finished product area 21a or are directly discharged for packaging.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (4)

1. The PVC grain cooling device with the grading function comprises a multi-stage cyclone separator and a gravity screening device (20), and is characterized in that the multi-stage cyclone separator comprises a plurality of cyclone separators (10), the cyclone separators (10) sequentially pass through a high-speed fan (30) and are connected with a pipeline, the last cyclone separator (10) passes through the high-speed fan (30) and is connected with the gravity screening device (20) through the pipeline, the gravity screening device comprises a barrel body (21), a feeding hole (22), an air outlet (23), a discharging hole (24), a baffle plate (25) and a cover plate (26), the side face of the upper end of the barrel body (21) is provided with the feeding hole (22) which is horizontally connected, the air outlet (23) is arranged on one side, far away from the feeding hole (22), of the top of the barrel body (21), and the other side of the top of the barrel body (21) is, apron (26) pass through hinged joint on staving (21), apron (26) top be provided with low frequency fan (40), the air-out pipeline of low frequency fan (40) inserts staving (21) inside and export wind direction and feed inlet (22) and be the slope setting of certain contained angle, baffle (25) fix staving (21) inside with staving (21) inside divide into finished product district (21 a) and semi-manufactured goods district (21 b), the bottom in finished product district (21 a) and semi-manufactured goods district (21 b) respectively is provided with a discharge gate (24).

2. The PVC particle cooling device with the grading function is characterized by further comprising a screening net (27) and a guide plate (28), wherein the screening net (27) and the guide plate (28) are fixed in a semi-finished product area (21 b), one ends of the screening net (27) and the guide plate (28) are movably clamped on the baffle (25) respectively, the other ends of the screening net and the guide plate are connected to a support through rotating shafts, the support is fixed on the inner wall of the barrel body (21), the screening net (27) is located above the guide plate (28), one end, close to the barrel body (21), of the screening net (27) inclines downwards, and one end, close to the baffle (25), of the guide plate (28) inclines downwards.

3. The PVC pellet cooling device with the grading function according to claim 2, wherein the baffle (25) is provided with a notch (29) above the position where the baffle contacts with the deflector (28).

4. The PVC pellet cooling device with the grading function as claimed in claim 2, wherein the screening net (27) adopts square or circular screen holes.

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