1. An energy-saving plastic wood particle extrusion sufficient cooling device comprises a mounting bracket and a device body arranged on the mounting bracket; the equipment body comprises a cooling unit (1) and a spiral feeding device (2) for discharging materials from the lower part of the cooling unit (1); the cooling unit (1) is characterized by comprising a cooling cavity (11) arranged on an installation support, a cooling plate (3) and a cooling rod (4) which are sequentially arranged in the cooling cavity (11) from top to bottom, a cold source module (12) for providing a cold source for the cooling plate (3) and the cooling rod (4), and a connecting module (5) for connecting the cooling plate (3), the cooling rod (4) and the cold source module (12);

a material buffer storage cavity (110) is arranged at the upper end of the cooling cavity (11);

the cooling plates (3) are multiple, and the multiple cooling plates (3) are arranged inside the cooling cavity (11) and used for prolonging the moving path of the plastic-wood particles through the inside of the cooling cavity (11);

the cooling plates (3) respectively comprise a supporting base plate (31) arranged on the cooling cavity (11), a first exchange metal plate (32) which is embedded on the surface of the supporting base plate (31), can be in contact with the plastic-wood particles and is used for carrying out heat exchange with the plastic-wood particles, and a heat dissipation fin (33) with one end arranged on the first exchange metal plate (32); a heat exchange channel cavity (310) is formed in the supporting base plate (31), and the other end of the radiating fin (33) is located in the heat exchange channel cavity (310);

the cooling rods (4) are arranged in a linear shape and are arranged in the cooling cavity (11) in a staggered manner from top to bottom, and the cooling rods (4) are all positioned below the cooling plate (3);

the cooling rods (4) respectively comprise a base pipe (41) arranged in the cooling cavity (11), a second exchange metal plate (42) which is embedded in the base pipe (41) and has a semicircular cross section and is used for exchanging heat with the plastic-wood particles, and a plurality of heat exchange pipes (43) which are arranged in the base pipe (41) and are in contact with the lower surface of the second exchange metal plate (42);

temperature sensors are arranged on the surfaces of the material caching cavity (110), one or more supporting base plates (31) and one or more base pipes (51);

the connecting module (5) comprises a first cold source cavity (51) and a first recovery cavity which are respectively connected with the heat exchange channel cavity (310), a second cold source cavity (52) and a second recovery cavity which are respectively connected with the heat exchange tube (43), a first connecting channel (53) and a first recovery channel of which one ends are respectively connected with the first cold source cavity (51), a second connecting channel (54) and a second recovery channel of which one ends are respectively connected with the second cold source cavity (52), a third connecting channel (55) for connecting the first cold source cavity (51) and the second cold source cavity (52), and electromagnetic valves arranged on the first connecting channel (53), the second connecting channel (54), the third connecting channel (55), the first recovery channel and the second recovery channel;

the cold source module (12) can provide cooling water or cooling gas for the first connecting channel (54) and the second connecting channel (55), and the cold source module (12) can recover the cooling water or cooling gas after heat exchange from the first recovery channel and the second recovery channel.

2. The energy-saving plastic wood particle extrusion cooling device as claimed in claim 1, wherein the heat sink module (12) supplies cooling gas to the first connecting channel (54) and the second connecting channel (55); the cold source module (12) can recover the cooling gas after heat exchange from the first recovery channel and the second recovery channel; an exhaust module (311) connected with the first connecting channel (54) is further arranged in the cooling plate (3); the exhaust module (311) includes an exhaust passage (3111) and an exhaust hole (3112) connected to the exhaust passage (3111); and an electromagnetic valve is arranged on the exhaust hole (3112).

3. The energy-saving plastic-wood particle extrusion cooling device as claimed in claim 1, wherein the cooling plate (3) is obliquely arranged inside the cooling cavity (11) and the inclination angle is 30-45 °.

4. The energy-saving plastic-wood particle extrusion cooling device as claimed in claim 1, wherein the longitudinal section of the cooling plate (3) is in a sawtooth structure.

5. The energy-saving plastic wood particle extrusion cooling device as claimed in claim 1, wherein the longitudinal section of the cooling plate (3) is of a diamond structure.

6. The energy-saving plastic-wood particle extrusion cooling device as claimed in claim 1, further comprising an anti-adhesion unit (6); the anti-adhesion unit (6) comprises a plurality of rotating shafts (61) arranged in parallel at the connecting positions of the material buffer cavities (110) and the cooling cavities (11), a driving motor (62) for providing power for the crushing shafts (61) and a soft module (63) wound on the surface of the rotating shafts (61); the rotating shaft (61) and the soft module (63) form an anti-adhesion module.

7. The energy-saving plastic-wood particle extrusion cooling device as claimed in claim 6, wherein the material buffer chamber (110) is funnel-shaped, and the anti-adhesion module is arranged in parallel at a feed opening of the material buffer chamber (110).

8. The energy-saving plastic wood particle extrusion cooling device as claimed in claim 6, wherein the soft module (63) comprises a winding bottom belt pad (631) wrapped on the surface of the rotating shaft (61), a plurality of elastic connecting rods (632) with one ends uniformly arranged on the winding bottom belt pad (631), and a plurality of convex balls (633) respectively installed at the other ends of the elastic connecting rods (632) in a one-to-one manner.

9. The cooling process of the cooling apparatus according to any one of claims 1 to 8, comprising: the plastic-wood particles fall under the influence of gravity after entering the material buffer cavity (110), and are sequentially contacted with the cooling plate (3) and the cooling rod (4) for heat exchange to realize cooling.

Background

The plastic-wood particles are a new composite material which is briskly developed in recent years at home and abroad, and refer to composite material particles or particles which are prepared by mixing polyvinyl chloride with plant fibers such as wood powder, rice hulls, bamboo powder and the like to form a new wood material, and mixing and granulating the new wood material. And then the plate or the section is produced by plastic processing technologies such as extrusion, mould pressing, injection molding and the like.

After extrusion, granulation, processing and molding, the plastic-wood particles are easy to deform due to high temperature, so that the appearance of the particles is affected, and therefore, the plastic-wood particles need to be cooled.

However, there is no special cooling device for the plastic-wood particles in the prior art, and a cooling device for the preparation process of the plastic-wood particles is needed urgently.

Disclosure of Invention

Aiming at the problems, the invention provides energy-saving plastic-wood particle extrusion sufficient cooling equipment and process.

The technical scheme of the invention is as follows: an energy-saving plastic wood particle extrusion sufficient cooling device comprises a mounting bracket and a device body arranged on the mounting bracket; the equipment body comprises a cooling unit and a spiral feeding device for discharging materials from the cooling unit; the cooling unit comprises a cooling cavity arranged on the mounting bracket, a cooling plate and a cooling rod which are sequentially arranged in the cooling cavity from top to bottom, a cold source module for providing a cold source for the cooling plate and the cooling rod, and a connecting module for connecting the cooling plate, the cooling rod and the cold source module;

a material caching cavity is arranged at the upper end of the cooling cavity;

the cooling plates are arranged in the cooling cavity and used for prolonging the moving path of the plastic-wood particles through the cooling cavity;

the cooling plates comprise a supporting base plate arranged on the cooling cavity, a first exchange metal plate which is embedded on the surface of the supporting base plate, can be in contact with the plastic-wood particles and is used for carrying out heat exchange with the plastic-wood particles, and a radiating fin of which one end is arranged on the first exchange metal plate; a heat exchange channel cavity is formed in the supporting substrate, and the other end of the radiating fin is located in the heat exchange channel cavity;

the cooling device comprises a cooling cavity, a plurality of cooling rods and a plurality of cooling plates, wherein the plurality of cooling rods are arranged in a linear shape and are arranged in the cooling cavity in a staggered manner from top to bottom, and the plurality of cooling rods are all positioned below the cooling plates;

the cooling rods respectively comprise a base pipe arranged in the cooling cavity, a second exchange metal plate which is embedded on the upper surface of the base pipe and has a semicircular cross section and is used for carrying out heat exchange with the plastic-wood particles, and a plurality of heat exchange pipes which are arranged in the base pipe and are contacted with the lower surface of the second exchange metal plate;

temperature sensors are arranged on the material caching cavity, the surface of one or more supporting base plates and the surface of one or more base pipes;

the connecting module comprises a first cold source cavity, a first recovery cavity, a second cold source cavity, a second recovery cavity, a first connecting channel and a first recovery channel, wherein the first cold source cavity and the first recovery cavity are respectively connected with the heat exchange tube;

the cold source module can provide cooling water or cooling gas for first connecting channel, second connecting channel, and the cold source module can retrieve the cooling water or cooling gas after the heat exchange from first recovery channel, second recovery channel.

Further, the cold source module provides cooling gas for the first connecting channel and the second connecting channel; the cold source module can recover the cooling gas after heat exchange from the first recovery channel and the second recovery channel; an exhaust module connected with the first connecting channel is further arranged in the cooling plate; the exhaust module comprises an exhaust channel and an exhaust hole connected with the exhaust channel; the exhaust hole is provided with an electromagnetic valve; can utilize exhaust module to change the inside temperature of cooling chamber to the inside direct discharge cold air of cooling chamber, more do benefit to the cooling efficiency of moulding the wood particle.

Furthermore, the cooling plate is obliquely arranged in the cooling cavity, and the inclination angle is 30-45 degrees; not only will prolong the time that the wood-plastic particles slided down on the cooling plate, it can glide still to guarantee that the wood-plastic particles receive gravity, and the time is too short if the angle is too big, and the angle undersize then can't glide.

Furthermore, the longitudinal section of the cooling plate is of a sawtooth structure.

Further, the longitudinal section of the cooling plate is of a diamond structure.

Further, the anti-adhesion device also comprises an anti-adhesion unit; the anti-adhesion unit comprises a plurality of rotating shafts arranged in parallel at the joints of the material caching cavities and the cooling cavities, a driving motor for providing power for the crushing shafts and a flexible module wound on the surface of the rotating shafts; the rotating shaft and the soft module form an anti-adhesion module; the problem that the plastic-wood particles are mutually adhered when heated can be effectively avoided by utilizing the anti-adhesion unit.

Furthermore, the material caching cavity is funnel-shaped, and the anti-adhesion module is arranged at a feed opening of the material caching cavity in parallel; the anti-adhesion unit is like a valve to close or open a feed opening of the material buffer cavity, and when the anti-adhesion unit operates, plastic wood particles fall from a gap of the anti-adhesion module; when the anti-adhesion unit is closed, the anti-adhesion modules are in a closed state, so that the elastic connecting rods and the protruding balls on different anti-adhesion modules are crossed to reduce gaps among the anti-adhesion modules, and the plastic wood particles are blocked; therefore, the blanking rate of the plastic-wood particles can be controlled by controlling the rotating speed of the rotating shaft.

Furthermore, the soft module comprises a winding bottom belt pad wrapped on the surface of the rotating shaft, a plurality of elastic connecting rods with one ends uniformly arranged on the winding bottom belt pad, and a plurality of convex balls respectively arranged on the other ends of the elastic connecting rods in a one-to-one mode.

Further, a cooling process of a cooling apparatus, comprising: the plastic-wood particles fall under the influence of gravity after entering the material buffer cavity, and are sequentially contacted with the cooling plate and the cooling rod for heat exchange to realize cooling.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention has reasonable integral structure design, and utilizes the cooling plate and the cooling bar to carry out twice contact heat exchange cooling treatment on the plastic-wood particles; because the temperature of the plastic-wood particles is generally kept within 200 ℃ during extrusion, granulation and processing molding, excessively complex cooling equipment inevitably causes resource waste during actual use, and the invention adopts twice cooling treatment, thereby not only effectively ensuring the cooling treatment of the plastic-wood particles, but also realizing the characteristic of energy conservation;

2. the equipment has high automation degree, so that the cooling process is simple, and the labor amount can be greatly reduced in the actual treatment;

3. the equipment has low integral manufacturing cost, is suitable for industrial mass production and is more beneficial to popularization.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a front partial sectional view of embodiment 1 of the present invention;

FIG. 3 is a partial exploded view of embodiment 1 of the present invention;

FIG. 4 is a schematic view showing the internal structure of a cooling plate according to embodiment 1 of the present invention;

FIG. 5 is a cross-sectional view of a cooling rod according to example 1 of the present invention;

FIG. 6 is a schematic view showing the internal structure of a cooling plate according to example 3 of the present invention;

FIG. 7 is a schematic view showing the installation of a cooling plate according to embodiment 4 of the present invention;

FIG. 8 is a schematic view showing the installation of a cooling plate according to embodiment 1 of the present invention;

FIG. 9 is a left partial sectional view of embodiment 5 of the present invention;

FIG. 10 is a front partial sectional view of embodiment 5 of the present invention;

FIG. 11 is a schematic structural view of an anti-blocking unit according to example 5 of the present invention;

wherein, 1-cooling unit, 11-cooling chamber, 110-material buffer chamber, 12-cold source module, 2-spiral feeding device, 3-cooling plate, 31-supporting substrate, 310-heat exchange channel chamber, 311-exhaust module, 3111-exhaust channel, 3112-exhaust hole, 32-first exchange metal plate, 33-radiating fin, 4-cooling rod, 41-base tube, 42-second exchange metal plate, 43-heat exchange tube, 5-connecting module, 51-first cold source chamber, 52-second cold source chamber, 53-first connecting channel, 54-second connecting channel, 55-third connecting channel, 6-anti-adhesion unit, 61-rotating shaft, 62-driving motor, 63-soft module, 631-winding bottom belt pad, 632-elastic connecting rod, 633-convex ball.

Detailed Description

Example 1: the energy-saving plastic-wood particle extrusion sufficient cooling equipment shown in fig. 1, 2 and 3 comprises a mounting bracket and an equipment body mounted on the mounting bracket; the equipment body comprises a cooling unit 1 and a spiral feeding device 2 for discharging materials from the cooling unit 1; the cooling unit 1 comprises a cooling cavity 11 arranged on the mounting bracket, a cooling plate 3 and a cooling rod 4 which are sequentially arranged in the cooling cavity 11 from top to bottom, a cold source module 12 for providing a cold source for the cooling plate 3 and the cooling rod 4, and a connecting module 5 for connecting the cooling plate 3, the cooling rod 4 and the cold source module 12;

a material buffer storage cavity 110 is arranged at the upper end of the cooling cavity 11;

as shown in fig. 2, 3 and 8, a plurality of cooling plates 3 are arranged, and the plurality of cooling plates 3 are obliquely arranged inside the cooling cavity 11 for extending the moving path of the plastic-wood particles through the inside of the cooling cavity 11 and are inclined at an angle of 35 °; the longitudinal section of the cooling plate 3 is of a diamond structure;

as shown in fig. 4, each of the plurality of cooling plates 3 includes a supporting substrate 31 mounted on the cooling chamber 11, a first exchanging metal plate 32 embedded on the surface of the supporting substrate 31 and capable of contacting with the plastic-wood particles for heat exchange with the plastic-wood particles, and a heat dissipating fin 33 having one end mounted on the first exchanging metal plate 32; a heat exchange channel cavity 310 is arranged inside the support substrate 31, and the other end of the heat dissipation fin 33 is positioned inside the heat exchange channel cavity 310;

as shown in fig. 2 and 3, a plurality of cooling rods 4 are provided, the plurality of cooling rods 4 are arranged in a straight line shape and are installed in the cooling cavity 11 in a staggered manner from top to bottom, and the plurality of cooling rods 4 are all positioned below the cooling plate 3;

as shown in fig. 5, each of the plurality of cooling rods 4 includes a base pipe 41 installed inside the cooling chamber 11, a second exchange metal plate 42 embedded in the base pipe 41 and having a semicircular cross-section on the upper surface thereof for exchanging heat with the wood-plastic particles, and a plurality of heat exchange tubes 43 installed inside the base pipe 41 and contacting the lower surface of the second exchange metal plate 42;

temperature sensors are arranged on the material caching cavity 110, the surface of the support substrate 31 and the surface of the base pipe 51;

as shown in fig. 1, the connection module 5 includes a first cold source chamber 51, a first recovery chamber connected to the heat exchange channel chamber 310, a second cold source chamber 52, a second recovery chamber connected to the heat exchange tube 43, a first connection channel 53, a first recovery channel connected to the first cold source chamber 51, a second connection channel 54, a second recovery channel connected to the second cold source chamber 52, a third connection channel 55 for connecting the first cold source chamber 51 and the second cold source chamber 52, and solenoid valves installed on the first connection channel 53, the second connection channel 54, the third connection channel 55, the first recovery channel, and the second recovery channel;

the cold source module 12 can provide cooling water for the first connection channel 54 and the second connection channel 55, and the cold source module 12 can recover the cooling water after heat exchange from the first recovery channel and the second recovery channel.

It should be noted that: in this embodiment, the first exchange metal plate 32, the heat dissipation fins 33, and the second exchange metal plate 42 are all made of aluminum alloy. In this embodiment, the temperature sensor, the solenoid valve cold source module 12 are all commercially available products. The embodiment further includes a PLC control system and a power supply device connected to the electrical appliance, which are not described herein.

The cooling process of the cooling device of the embodiment comprises the following steps: the plastic-wood particles fall under the influence of gravity after entering the heat exchange channel cavity of the material caching cavity 110, and are in heat exchange contact with the heat exchange channel cavity of the cooling plate heat exchange channel cavity 3 and the heat exchange channel cavity of the cooling rod heat exchange channel cavity 4 in sequence to realize cooling.

It should be noted that: the embodiment can realize the aging adjustment of the heat exchange by carrying out temperature measurement feedback on the plastic-wood particles through temperature sensors at different parts and then by the connecting module 5, namely, the aging adjustment of the heat exchange is changed by controlling the flow rate of cooling water through the connecting module 5 and the cold source module 12.

Example 2: the difference from example 1 is: the cold source module 12 can provide cooling gas for the first and second connection channels 54 and 55, and the cold source module 12 can recover the cooling gas after heat exchange from the first and second recovery channels.

Example 3: the difference from example 1 is: as shown in fig. 6, the cool source module 12 supplies cooling gas to the first and second connection passages 54 and 55; the cold source module 12 can recover the cooling gas after heat exchange from the first recovery channel and the second recovery channel; an exhaust module 311 connected with the first connecting channel 54 is further arranged in the cooling plate 3; the exhaust module 311 includes an exhaust passage 3111 and an exhaust hole 3112 connected to the exhaust passage 3111; the exhaust port 3112 is provided with an electromagnetic valve.

It should be noted that: in the embodiment, the cold source module 12 directly injects cold air into the cooling chamber 11 through the exhaust module 311 to adjust the temperature inside the cooling chamber 11.

Example 4: the difference from example 1 is: as shown in fig. 7, the cooling plate 3 has a zigzag structure in longitudinal section.

Example 5: the difference from example 1 is: as shown in fig. 9 and 10, the anti-adhesion device also comprises an anti-adhesion unit 6; as shown in fig. 11, the anti-adhesion unit 6 includes a plurality of rotating shafts 61 arranged in parallel at the connection between the material buffer cavities 110 and the cooling cavity 11, a driving motor 62 for providing power to the plurality of crushing shafts 61, and a soft module 63 wound on the surface of the rotating shafts 61; the rotating shaft 61 and the soft module 63 form an anti-adhesion module; the material caching cavity 110 is funnel-shaped, and the anti-adhesion module is arranged at the feed opening of the material caching cavity 110 in parallel; the flexible module 63 includes a winding base belt pad 631 wrapped on the surface of the rotating shaft 61, a plurality of elastic connecting rods 632 with one ends uniformly arranged on the winding base belt pad 631, and a plurality of convex balls 633 respectively installed on the other ends of the elastic connecting rods 632 one by one; and the elastic connecting rod 632 and the convex ball 633 on different anti-adhesion modules are crossed.

It should be noted that: before the plastic-wood particles fall from the material caching cavity 110, the anti-adhesion unit 6 scrapes the plastic-wood particles to prevent the plastic-wood particles from being adhered due to high temperature;

the anti-adhesion unit 6 like a valve closes or opens the feed opening of the material buffer cavity 110, and when the anti-adhesion unit 6 operates, the plastic-wood particles fall from the anti-adhesion module gap; when the anti-adhesion unit 6 is closed, the anti-adhesion modules are in a closed state, so that the elastic connecting rods 632 and the convex balls 633 on different anti-adhesion modules are crossed to reduce gaps among the anti-adhesion modules, and the plastic wood particles are blocked; therefore, the blanking rate of the plastic-wood particles can be controlled by controlling the rotating speed of the rotating shaft 61; in actual use, the temperature of the plastic-wood particles at different parts can be sensed through the temperature sensor, and then the actual blanking rate of the plastic-wood particles is controlled.