Processing technology for making seepage irrigation pipe with alternate effluent section and non-effluent section

Abstract

The present invention relates to a processing technology for manufacturing seepage irrigation pipe with alternating effluent sections and non-effluent sections, and in particular, to the field of underground seepage irrigation in agriculture and forestry. The processing technology combines the production unit for water-effluent pipes with the production unit for non-effluent pipes, and produces the seepage irrigation pipeline by adjusting the raw material ratios, controlling the spindle speed, spindle acceleration time, and spindle deceleration time of the two pipeline production units, to generate a seepage irrigation pipe with alternating effluent sections and non-effluent sections. The lengths of the effluent sections and non-effluent sections can be adjusted, the pipe wall thickness can also be adjusted by adjusting the inner and outer diameter of the internal mold of the pipe forming unit, a seepage irrigation pipe with alternating effluent sections and non-effluent sections is environment-friendly, efficient, water-saving, and useful for underground irrigation.

Claims

1. An apparatus configured to perform a process for manufacturing a seepage irrigation pipe with alternative effluent sections and non-effluent sections, comprising: a blender (2) configured to receive desulfurized tire rubber powder and high-density polyethylene pellet powder at a ratio of 1:0.6-1:0.3, and to mix the desulfurized tire rubber powder and high-density polyethylene pellet powder for 15-30 minutes at 15-35° C.; a first extruder (9) comprising a spindle and connected with a second extruder (4) through a pipe forming unit (8), the first extruder configured to receive the mixture of desulfurized tire rubber powder and high-density polyethylene pellet powder through a first automatic feeder (1); the blender (2) further configured to receive further desulfurized tire rubber powder and further high-density polyethylene pellet powder at a ratio of 1:1.2-1:0.7 and to mix the further desulfurized tire rubber powder and the further high-density polyethylene pellet powder for 15-30 minutes at 15-35° C.; the second extruder (4) configured to receive the mixture of the further desulfurized tire rubber powder and further high-density polyethylene pellet powder through a second automatic feeder (3); the first extruder (9) further configured to extrude an effluent section of a seepage irrigation pipe through the pipe forming unit (8) after a time of an effluent section producing reaction of 1˜2 minutes, wherein the length of the effluent section is controlled by setting a speed of the first extruder spindle at 500˜950r/min and wherein temperatures in different areas of the first extruder (9) are at 120˜170° C.; the second extruder (4) comprising a further spindle, the second extruder (9) further configured to extrude a non-effluent section of the pipe through the pipe forming unit (8) after a time of non-effluent section producing reaction of 1˜2 minutes, wherein a length of the non-effluent section is controlled by setting a speed of the further spindle at 500˜1000r/min and wherein temperatures in different areas of the second extruder (4) are at 120˜170° C.; a pipeline cooling device (5) configured to cool the sections extruded from the pipe forming unit (5); an automatic pipe coiler (7) through which the cooled sections are drawn via a pipe traction cutting machine, wherein a speed of traction cutting machine (6) is set at 0.03˜0.05 m/s and wherein after reaching a pre-set length of the pipe, the pipe traction cutter (6) automatically cuts the pipe and the automatic pipe coiler (7) wraps and packages the cut pipe, wherein the first extruder (9) and the second extruder (4) alternate in producing the effluent section and producing the non-effluent section, and wherein the blender (2), the pipe cooling device (5), the automatic pipe coiler (7), and one of the first extruder (9) and the second extruder (4) operate simultaneously, wherein when transitioning from producing the effluent section to producing the non-effluent section, the production of the effluent section is stopped automatically after 0.5˜2 seconds of the effluent section producing reaction via controlling a time of acceleration of the further spindle of the second extruder (4), subsequently the non-effluent section is extruded from the pipe forming unit (8), wherein the further spindle acceleration time is a time when the second extruder (4) accelerates from 0 to the set target speed; wherein when transitioning from producing the non-effluent section to producing the effluent section, the production of the non-effluent section is stopped automatically after 0.5˜2 seconds of non-effluent section producing reaction via controlling a time of deceleration of the further spindle of the second extruder (4), subsequently the effluent section is extruded from the pipe forming unit (8), wherein the further spindle deceleration time is a time when the second extruder (4) decelerates from a present running speed to 0.

2. The apparatus according to claim 1, wherein an internal mold of the pipe forming unit (8) has an inner diameter of 15˜18 mm and an outer diameter of 20˜23 mm.

3. The apparatus according to claim 1, wherein particle size of the desulfurized tire rubber powder ranges from 0.5˜0.9 mm, and the particle size of high-density polyethylene ranges from 1˜3 mm.

4. The apparatus according to claim 1, wherein the length of the effluent section, non-effluent section, and the total length of the pipe can be set freely.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a diagram showing a pipe production device configured to manufacture a seepage irrigation pipe with alternating effluent sections and non-effluent sections.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Embodiment 1

(2) Adjust the inner diameter and outer diameter of internal mold of the pipe forming unit (8) to 16.6 mm and 21.2 mm, respectively. Add 100 parts of 20 mesh desulfurized tire rubber powder (natural gum:synthetic gum:carbon black:aromatic oil:zinc oxide:stearic acid:accelerant=55:40:50:7:3:1:1:0.5) and 45 parts of 10 mesh high density polyethylene powder into a blender (2) to stir for 30 minutes at 25° C.; load the mixture to the first extruder (9) through the first automatic feeder (1); add 100 parts of 20 mesh desulfurized tire rubber powder (natural gum:synthetic gum:carbon black:aromatic oil:zinc oxide:stearic acid:accelerant=55:40:50:7:3:1:1:0.5) and 100 parts of 10 mesh high density polyethylene powder into the blender (2) to stir for 30 minutes in at 25° C., load the mixture to the second extruder (4) through the second automatic feeder (3).

(3) Set the spindle speed of the first extruder (9) at 650 r/min. There are three heat-melting areas and one raw material extrusion area in the first extruder (9). Set the temperatures of three heat-melting areas and one raw material extrusion area at 156° C., 163° C., 157° C. and 143° C., respectively. After reacting for 1˜2 minutes, the effluent pipe is extruded from the pipe forming unit (8).

(4) Set the length of effluent section at 50 cm. When transiting from producing effluent section to producing non-effluent section, set the spindle speed of the second extruder at 720 r/min. The second extruder has four heat-melting areas and one raw material extrusion area, the temperatures of which are set at 145° C., 149° C., 149° C., 143° C., and 150° C., respectively. The spindle acceleration time of the second extruder is 0.9 s, the effluent section stops production automatically after 0.9 s, the non-effluent section starts to be extruded from the pipe forming unit (8).

(5) Set the length of the non-effluent section at 50 cm, when transiting from producing non-effluent section to producing effluent section, set the spindle deceleration time of the second extruder at 1.0 s, the non-effluent section stops production automatically after 1.0 s, the effluent pipe starts to be extruded from the pipe forming unit (8). The effluent and non-effluent sections are automatically produced alternately.

(6) The pipe extruded from pipe forming unit (8) is drawn to an automatic pipe coiler through a pipe traction cutting machine after cooling by pipeline cooling device. Control the traction speed of traction cutting machine to 0.04 m/s, set the total pipe length at 150 m, after reaching 150 m, the pipe traction cutter automatically cuts the pipe, and the automatic pipe coiling machine tightens the pipe to pack.

(7) The performance parameters of the seepage irrigation pipe with alternating effluent sections and non-effluent sections are: the inner and outer diameter of the pipe is 16 mm and 21 mm, respectively; the wall thickness of the pipe is 2.5 mm. The pipe can be buried at 10˜30 cm below the ground for underground irrigation, with effluent section and non-effluent section appears alternately in the same pipe. The lengths of the effluent and non-effluent section are all 50 cm, the service life is more than 5 years, saving 45% of the cost.

Embodiment 2

(8) Adjust the inner diameter and outer diameter of internal mold of the pipe forming unit (8) to 16.6 mm and 22.5 mm, respectively. Add 100 parts of 20 mesh desulfurized tire rubber powder (natural gum:synthetic gum:carbon black:aromatic oil:zinc oxide:stearic acid:accelerant=55:40:50:7:3:1:1:0.5) and 40 parts of 10 mesh high density polyethylene powder into a blender to stir for 25 minutes at 25° C.; load the mixture to the first extruder through the first automatic feeder (1); add 100 parts of 20 mesh desulfurized tire rubber powder (natural gum:synthetic gum:carbon black:aromatic oil:zinc oxide:stearic acid:accelerant=55:40:50:7:3:1:1:0.5) and 90 parts of 10 mesh high density polyethylene powder into the blender to stir for 25 minutes in at 25° C., load the mixture to the second extruder through the second automatic feeder.

(9) Set the spindle speed of the first extruder (9) at 900 r/min. There are three heat-melting areas and one raw material extrusion area in the first extruder (9). Set the temperatures of three heat-melting areas and one raw material extrusion area at 127° C., 126° C., 137° C. and 138° C., respectively. After reacting for 1˜2 minutes, the effluent pipe is extruded from the pipe forming unit.

(10) Set the length of effluent section at 40 cm. When transiting from producing effluent section to producing non-effluent section, set the spindle speed of the second extruder at 960 r/min. The second extruder has four heat-melting areas and one raw material extrusion area, the temperatures of which are set at 128° C., 132° C., 138° C., 140° C., and 133° C., respectively. The spindle acceleration time of the second extruder is 0.8 s, the effluent section stops production automatically after 0.8 s, the non-effluent section starts to be extruded from the pipe forming unit.

(11) Set the length of the non-effluent section at 90 cm, when transiting from producing non-effluent section to producing effluent section, set the spindle deceleration time of the second extruder at 0.7 s, the non-effluent section stops production automatically after 0.7 s, the effluent pipe starts to be extruded from the pipe forming unit. The effluent and non-effluent sections are automatically produced alternately.

(12) The pipe extruded from pipe forming unit is drawn to an automatic pipe coiler through a pipe traction cutting machine after cooling by pipeline cooling device. Control the traction speed of traction cutting machine to 0.044 m/s, set the total pipe length at 200 m, after reaching 200 m, the pipe traction cutter automatically cuts the pipe, and the automatic pipe coiling machine tightens the pipe to pack.

(13) The performance parameters of the seepage irrigation pipe with alternating effluent sections and non-effluent sections are: the inner and outer diameter of the pipe is 16 mm and 22 mm, respectively; the wall thickness of the pipe is 3.0 mm. The pipe can be buried at 10˜50 cm below the ground for underground irrigation, with effluent section and non-effluent section appears alternately in the same pipe. The length of the effluent is 40 cm, the length of the non-effluent section is 90 cm. The service life is more than 6 years. Cost-saving is above 55%.

Embodiment 3

(14) Adjust the inner diameter and outer diameter of internal mold of the pipe forming unit (8) to 16.6 mm and 22.5 mm, respectively. Add 100 parts of 20 mesh desulfurized tire rubber powder (natural gum:synthetic gum:carbon black:aromatic oil:zinc oxide:stearic acid:accelerant=55:40:50:7:3:1:1:0.5) and 40 parts of 10 mesh high density polyethylene powder into a blender to stir for 25 minutes at 25° C.; load the mixture to the first extruder through the first automatic feeder.

(15) The pipe extruded from pipe forming unit is drawn to an automatic pipe coiler through a pipe traction cutting machine after cooling by pipeline cooling device. Control the traction speed of traction cutting machine to 0.041 m/s, set the total pipe length at 120 m, after reaching 120 m, the pipe traction cutter automatically cuts the pipe, and the automatic pipe coiling machine wraps and packs the cut pipe.

(16) The performance parameters of the full-permeability pipe produced by this Embodiment are as follows: the inner and outer diameter of the pipe is 16 mm and 22 mm, respectively; the wall thickness of the pipe is 3.0 mm. The pipe can be buried at 10˜35 cm below the ground for underground irrigation. The entire length of the pipe is permeable. The service life is more than 6 years. Cost-saving is above 60%.