CN201364004Y - Drying device of water-bearing waste plastic - Google Patents

Abstract

The utility model relates to a device which is matched with a waste plastic cracking processing device and dries waste plastic whose surface is wet. The device of the utility model comprises a base, a motor, a drying chamber, a charging port and a discharging part which are arranged on the drying chamber, wherein the drying chamber is a cylindrical component which is circular sectional and can rotate around an axial cord of the drying chamber and whose cylindrical wall is provided with through holes, the included angle between the axial cord of the drying chamber and the horizontal plane is 8-15 degrees, a sealed outer wall is arranged outside the drying chamber, a space is formed between the sealed outer wall and the cylindrical wall of the drying chamber, an air inlet pipe and an air outlet pipe are respectively arranged on the sealed outer wall, spaces in the outer wall and outside a cylinder of the drying chamber is respectively divided into an air inlet area and a venting area, and a drying unit which consists of each pair of the air inlet and the vent is arranged in the drying chamber.

Description

A kind of drying device of hydrous waste plastic

Technical field

The utility model relates to a kind of drying device, is a kind of to containing the waste plastic of moisture content exactly, and particularly its surface carries the withering device of waste plastic of moisture, the general and supporting use of waste plastic cracking treating apparatus of this device.Device of the present utility model is made of pedestal, motor, hothouse, the charging aperture and the discharging opening that are arranged on the hothouse.

Background technology

For ensureing Products Quality and processing technology normally being carried out, before carrying out plastic processing, often need carry out drying and handle plastic raw materials.A kind of plastics drying device is disclosed as Chinese utility model patent 03,258 129.7, this patent has a heating tank and a dry slot, this dry slot is for placing plastics to be dried, this heating tank top is provided with a blower fan, with with in this heating tank of outside air suction, a heater is set in this heating tank; Heater is covered with a cover body outward, and this cover body has down an opening, makes this heating tank volume inside be divided into an inner flow passage and an outer flow passage by this cover body, and this cover body is provided with an ajutage wind is delivered to this dry slot away from an end of this opening.China's utility model patent 8821025.1 discloses a kind of mechanical-vibration type mixing, granulation, drying device, it is by motor, air compartment, the operating room, the filter chamber, spray moisturing devices etc. constitute, during work, it is by vibrating material and being blown into hot blast, and spirality motion again reaches homogeneous mixing, granulation, drying when making the material boiling.It is introduced that this device can be used for industries such as pharmacy, food, chemical industry, dyestuff, pottery, mining industry, plastics, feed.

In recent years waste plastics is carried out thermal cracking resource and be treated as a kind of effective measures that the elimination waste plastics pollutes, and when the waste plastics that reclaims is carried out the thermal cracking resource processing, be rich in moisture owing in the plastic garbage, the a large amount of heat energy of waste can influence the cracking of plastics simultaneously in causing producing.For overcoming this problem, also need in advance plastic garbage to be carried out drying and handle.But present stage does not still have ripe special-purpose waste plastics drying equipment, and aforesaid plastics drying device and be not suitable for the processing plastic garbage, handles even use plastics after aforementioned means is handled to be unfavorable for carrying out cracking yet.

Summary of the invention

The utility model disclose a kind of can with the plastic cracking matched with devices to the withering device of plastic garbage.

The drying device of hydrous waste plastic of the present utility model, by pedestal, motor, hothouse, the charging aperture and the discharging opening that are arranged on the hothouse constitute, its hothouse is the Cylinder shape constructional element of circular section, its barrel is provided with passage, the axis of hothouse and horizontal plane angle are 8～15 degree, charging aperture is located at the high-end of hothouse, discharging opening is positioned at the low side of hothouse, hothouse passes through motor, the decelerator effect can be around its axis rotation, hothouse is outside equipped with the outer wall of sealing, make and form a space between the outer wall of sealing and hothouse outer tube wall, the outer wall place of sealing is provided with blast pipe and exhaust duct respectively, corresponding and symmetrical position at the sealing outer wall is respectively arranged with the air port that is communicated with blast pipe and exhaust duct in pairs, in outer wall with the hothouse cylindrical shell outside the space in be symmetrically arranged with two elastic skeleton rubber seals, make the space that outer wall is interior and the hothouse cylindrical shell is outer be divided into air intake district and exhaust zone, constitute a drying unit by every pair of air inlet and exhaust outlet in the hothouse.Have at least two drying unit this devices of the present utility model to make in the device of the present utility model to be in plastics in the hothouse to enter the motion of generation class pseudo boiling shape under the effect of the air-flow in the hothouse at the through hole on air inlet and hothouse barrel, and slide to the discharging opening of low side gradually by high-end charging aperture, in this motion process, progressively remove the moisture content that carry on the plastic garbage surface, and processed plastics itself do not change in dry run, can not influence the cracking that will carry out the back and handle.

In the drying device of the present utility model, be provided with inwardly protruded floor in the barrel of its hothouse, air inlet is positioned at the bottom of hothouse, and exhaust outlet is positioned at the top of hothouse.The rib structure of the projection in the dry locular wall can make the strength and stiffness of hothouse be improved on the one hand, in the hothouse agitaion that rib structure can produce similar paddle to the plastics in it when its axis rotates, plastics are produced stir more fully on the other hand; Plastics are more fully contacted with dry gas stream; The structure that air inlet is arranged at the bottom of hothouse and the top that exhaust outlet is arranged at hothouse can make the wind that enters hothouse that the plastics in it are upwards blown afloat, and plastics are floated, and has further strengthened dry effect.

Each air inlet of the present utility model and exhaust outlet place are provided with the valve of quantity-adjustable, can the utility model are under the best condition of work by regulating the aperture control air quantity of each valve.

According to relevant test, hothouse axis of the present utility model and horizontal plane angle are that 10 degree have best effect.

In the drying device of the present utility model, be respectively arranged with valve and a blower fan that is used for cold and hot wind is mixed and improves blast of cool air hose and warm-air pipe, quantity-adjustable in the upstream of blast pipe, downstream at blower fan is provided with temperature element, adopt this structure to make to enter the temperature of the dry wind in the hothouse to be controlled, both can farthest improve the drying efficiency of device, can avoid causing the problem of plastics coking again because of hot blast temperature is too high.

In the drying device of the present utility model, be provided with dust arrester, can make that amount of dust reduces greatly in the gas that device of the present utility model is discharged, avoid pollution environment in the downstream of exhaust duct.

The results showed in the device of the present utility model to constitute best treatment effect can be arranged by four drying units.

Description of drawings

Accompanying drawing is embodiment of enforcement of the present utility model, and wherein: Fig. 1 is hothouse of the present utility model and the longitudinal profile schematic diagram that seals outer wall construction, and the parts that wherein are positioned at the passage 23 on the barrel have adopted the technique of painting of local amplification; Fig. 2 is hothouse and the horizontal section schematic diagram that seals outer wall construction; Fig. 3 is a blast pipe upstream structural representation; Fig. 4 is the dust arrester schematic diagram in exhaust duct downstream; Fig. 5 is the local enlarged diagram in holder roller position among Fig. 1.

Each component names and label are among the above-mentioned figure: cool air hose 1, and warm-air pipe 2 is positioned at the manually-operated gate 3 of cool air hose 1, be positioned at the manually-operated gate 4 of warm-air pipe 2, cold and hot mixing wind control valve 5, blower fan 6, temperature measuring equipment 7, electric control cabinet 8, pedestal 9, blast pipe 10, holder roller 11, motor and decelerator 12, air inlet 13, the valve 14 of adjusting intake, skeleton elastic caoutchouc sealing 15, floor 16, hothouse (tube) 17, the valve 18 of adjusting exhaust air rate, air outlet 19, sealing outer wall 20, skeleton elastic caoutchouc sealing 21, charging aperture guide plate 22, be positioned at the passage 23 on the barrel, exhaust duct 24, deduster 25, air-introduced machine 26, subiculum roller 27, discharging opening and discharging guide plate 28, the tail end 29 of reclaiming plate, backing ring 30.

The specific embodiment

The utility model is below in conjunction with the accompanying drawing explanation:

Referring to Fig. 1 and Fig. 2, device of the present utility model by the outer wall 20 of sealing, be positioned at outer wall 20 and the relatively hothouse 17 that rotates of outer wall 20, the motor and the decelerator 12 of driving hothouse 17 rotations, and blast pipe 10 and exhaust duct 24 formations, wherein: hothouse 17 is the cylindrical part of circular section.At the front end of hothouse, an end that promptly is provided with motor reducer among the figure is provided with charging aperture and charging guide plate 22, and the tail end of hothouse is provided with discharging opening and discharging guide plate 28.Have passage 23 on the wall of hothouse, the inside of wall is provided with inwardly protruded floor 16.There are a space in 17 of this sealing outer wall 20 and hothouses, and hothouse is provided with blast pipe 10 and exhaust duct 24.Be respectively arranged with several on blast pipe 10 and the exhaust duct 24 and be communicated with air inlet 13 and exhaust outlet 19 with the outer pars intramuralis of sealing (just sealing the space between outer wall and hothouse), air inlet 13 equates with the quantity of exhaust outlet 19, and air inlet 13 is positioned at the place, the lower right corner of sealing outer wall, and exhaust outlet 19 is positioned at the left upper of sealing outer wall.The upper right corner of sealing outer wall 20 and the upper left corner are respectively arranged with skeleton elastic caoutchouc sealing 21 and 15, one end of skeleton elastic caoutchouc sealing 21 and 15 is fixed on the sealing outer wall, the other end be posted by on the wall of hothouse, making is that space between sealing outer wall and hothouse is divided into the exhaust zone on the left side and the air intake district on the right.Form a drying unit by every pair of air inlet and exhaust outlet in the utility model.Be fixed with holder roller 11 and 27 respectively in the front and back of pedestal, wherein the height of holder roller 11 is higher than the height of holder roller 27, respectively have on one section part that passage is not set in the front end of hothouse barrel and rear end and to be set with backing ring 30 respectively, backing ring 30 places respectively on the holder roller 11 and 27, referring to Fig. 5, the low shape setting in high back before hothouse 17 is, but because the effect of holder roller has retrained hothouse motion vertically.The longitudinal axis of hothouse and horizontal plane angle in 8 to 15 degree scopes, relevant test show when angle be that 10 effects when spending are the best.Also can when drying operation, will breaking away from the metal object that bonds and twine and separate of the utility model device at discharging opening place installation electromagnetism sorting mechanism.

Referring to Fig. 3, the provided upstream of blast pipe 10 is equipped with cool air hose 1 and warm-air pipe 2; In cool air hose 1, be provided with manually-operated gate 3, in warm-air pipe 2, be provided with manually-operated gate 4; Be provided with cold and hot mixing wind control valve 5 after the valve 3 and 4, be provided with blower fan 6 behind the valve 5, the blower fan efferent duct connects blast pipe 10, also be provided with temperature measuring equipment 7 within it, the temperature signal that temperature measuring equipment 7 records is sent into electric control cabinet 8, and according to measured signal controlling blower fan 6 and valve 5, and the valve 18 of the set adjusting exhaust air rate of the valve 14 of the set adjusting intake of motor 12 and each air inlet and each exhaust outlet.

Referring to Fig. 4, the downstream of exhaust duct 24 is connected to air-introduced machine 26 and deduster 25..

The withering process of the utility model is as follows: waste plastics is in charging guide plate 22 enters hothouse 17, because hothouse is in tilted layout, the material that is dried slow tail end to hothouse under its gravity effect slides, simultaneously owing to hothouse rotates around its axis, the agitaion that the 16 pairs of materials of floor that are provided with in the hothouse 17 produce similar paddle, the drift of assistance material, being arranged at passage 23 on the air-flow drying locular wall that the air inlet 13 of hothouse below is blown into simultaneously enters hothouse inside that plastics are upwards blown afloat is unsteady, form the motion of class pseudo boiling shape, and the material surface is fully acted on air-flow, make the moisture drying that is carried on the material surface gradually, final dry material is discharged from discharging opening and discharging guide plate 28.When carrying out drying operation, warm-air pipe 2 in the utility model device can be directly heats with the waste heat that produces at cracking process of thermal cracker, the energy is made full use of, simultaneously by control valve 5, perhaps by manual adjustments valve 3 and 4, make the gas flow temperature that enters hothouse 17 controlled, so both can obtain best drying process parameter, also can avoid simultaneously because of the too high material that causes of the gas flow temperature that enters hothouse by coking.

Claims (6)

1, a kind of drying device of hydrous waste plastic, by pedestal, motor, hothouse, the charging aperture and the discharging opening that are arranged on the hothouse constitute, it is characterized in that hothouse is the Cylinder shape constructional element of circular section, its barrel is provided with passage, the axis of hothouse and horizontal plane angle are 8～15 degree, charging aperture is located at the high-end of hothouse, discharging opening is positioned at the low side of hothouse, hothouse passes through motor, the decelerator effect can be around its axis rotation, hothouse is outside equipped with the outer wall of sealing, make and form a space between the outer wall of sealing and hothouse outer tube wall, the outer wall place of sealing is provided with blast pipe and exhaust duct respectively, corresponding and symmetrical position at the sealing outer wall is respectively arranged with the air port that is communicated with blast pipe and exhaust duct in pairs, in outer wall with the hothouse cylindrical shell outside the space in be symmetrically arranged with two elastic skeleton rubber seals, make the space that outer wall is interior and the hothouse cylindrical shell is outer be divided into air intake district and exhaust zone, constitute a drying unit by every pair of air inlet and exhaust outlet in the hothouse, in device of the present invention, have two drying units at least.

2, drying device according to claim 1 is characterized in that being provided with inwardly protruded floor in the barrel of hothouse, and air inlet is positioned at the bottom of hothouse, and exhaust outlet is positioned at the top of hothouse.

3, drying device according to claim 2 is characterized in that each air inlet and exhaust outlet place are provided with the valve of quantity-adjustable.

4, drying device according to claim 3 is characterized in that the axis of hothouse and horizontal plane angle are 10 degree.

5 according to claim 1 or 2 or 3 or 4 described drying devices, the upstream that it is characterized in that blast pipe is respectively arranged with valve and blower fan that is used for cold and hot wind is mixed and improves blast of cool air hose and warm-air pipe, quantity-adjustable, is provided with temperature element in the downstream of blower fan.

6, drying device according to claim 5 is characterized in that the downstream of exhaust duct is provided with dust arrester.

7, drying device according to claim 6 is characterized in that whole device is made of four drying units.

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