Multi-stage polypropylene cooling water tank

Abstract

The utility model relates to the technical field of polypropylene production, in particular to a multi-stage polypropylene cooling water tank, which comprises a first water tank arranged at the outlet end of an extruder, a second water tank obliquely arranged under the first water tank, an opening arranged at one end of the first water tank far away from the extruder, and an oblique upper end of the second water tank positioned under the opening. A third water tank is obliquely arranged under the second water tank, the oblique upper end of the third water tank is located under the oblique lower end of the second water tank, a fourth water tank is horizontally arranged under the third water tank, the oblique lower end of the third water tank is guided to the fourth water tank, and a plurality of guide plates are arranged on the second water tank and the third water tank. A water pumping pipe communicated with the first water tank is arranged on the fourth water tank. According to the utility model, the multi-layer water tank is arranged, so that the contact surface area of the water tank and air is increased; by arranging the guide plates on the inclined planes, the water flowing efficiency can be further improved, and the heat dissipation effect is improved in the flowing process.

Description

Technical Field

[0001] The utility model relates to the technical field of polypropylene production, in particular to a multi-stage polypropylene cooling water tank. Background Art

[0002] In the production of engineering plastic modification, the material strips extruded from the extruder head after high-temperature melting in the plastic extruder need to be cooled before entering the pelletizing system for pelletizing. This cooling process is the process of the material strips passing through the water tank.

[0003] The cooling process of the material strip from the extruder to the water tank will release a large amount of heat, and the temperature of the water tank will continue to rise. When the water temperature of the water tank rises to a temperature that affects the cooling of the material strip, cooling water must be added or the water body must be replaced, resulting in a waste of water resources. Utility Model Content

[0004] The utility model provides a multi-stage polypropylene cooling water tank to solve the above technical problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A multi-stage polypropylene cooling water trough comprises a first water trough arranged at the outlet end of an extruder, a second water trough being arranged obliquely directly below the first water trough, an opening being arranged at one end of the first water trough away from the extruder, an inclined upper end of the second water trough being located directly below the opening, a third water trough being arranged obliquely directly below the second water trough, an inclined upper end of the third water trough being located directly below the inclined lower end of the second water trough, a fourth water trough being arranged horizontally directly below the third water trough, an inclined lower end of the third water trough leading to the fourth water trough, a plurality of guide plates being arranged on the second water trough and the third water trough, and a water pumping pipe connected to the first water trough being arranged on the fourth water trough.

[0007] Furthermore, a plurality of the guide plates are alternately arranged on the side walls of the second water trough and the third water trough, and the inclination direction of the guide plates is toward the inclined lower end of the plate body. The high-temperature water body for cooling the material strips forms a confluence under the action of the guide plates on both sides of the second water trough or the third water trough. The guide plates can increase the residence time of the water body on the plate body, increase the length of the flow path, and then increase the area and time of contact with the air, so as to achieve the function of sufficient contact cooling.

[0008] Furthermore, two guide plates are symmetrically arranged at the inclined lower ends of the second and third water tanks, and a liquid channel is left between the two guide plates. The two guide plates can concentrate the water flow to the middle section of the plate body, ensuring that the impact force of the water flow is concentrated in the middle, thereby improving the stability of the overall structure.

[0009] Furthermore, the inclined upper end of the second water tank is located outside the opening, and the inclined upper end of the third water tank is located outside the inclined lower end of the second water tank. The inclined upper end of the second water tank extends outward, beyond the vertical plane corresponding to the opening, and the inclined upper end of the third water tank extends outward, beyond the vertical plane corresponding to the inclined lower end of the second water tank, which ensures that the water flow will not overflow from the board body.

[0010] Furthermore, a plurality of water outlet pipes are arranged at equal intervals along the long side of the first water tank, and the plurality of water outlet pipes are connected to the water pumping pipe. The water outlet pipes can evenly distribute the cooled water on the first water tank to ensure that the overall cooling effect is balanced and avoid excessive water temperature difference at both ends of the first water tank.

[0011] Furthermore, a plurality of flushing holes are provided on the top surface of the water outlet pipe, and the flushing holes are vertically upward. The flushing holes can directly cool the material strips above them, further improving the cooling effect and meeting the production requirements.

[0012] Furthermore, a water pump is provided on the water pumping pipe, and the water pump is provided at the fourth water tank. The water pump pumps water to the first water tank, and is used to transport the cooled water upward.

[0013] Furthermore, the first water tank, the second water tank, the third water tank and the fourth water tank are connected and fixed by support rods. The side walls of the first water tank, the second water tank, the third water tank and the fourth water tank are welded and fixed to the support rods, and the support rods play a role in stabilizing the overall structure.

[0014] Furthermore, a fixing plate is provided at the bottom of the fourth water tank, and the bottom of the support rod is vertically fixed on the fixing plate.

[0015] Furthermore, the guide plate is a straight plate or a curved plate. The straight plate can guide the water flow alternately, and the water flow rate is faster, which can improve the cooling effect. The curved plate can slow down the water flow rate and increase the residence time of the water flow on the plate body, thereby extending the contact time with the air.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model increases the surface area of ​​the water tank in contact with the air by setting up a multi-level water tank, thereby accelerating the heat dissipation effect through heat exchange;

[0018] 2. The utility model can further increase the efficiency of water flow and increase the heat dissipation effect during the flow process by arranging a guide plate on the inclined surface;

[0019] 3. The utility model can give priority to using water with longer cooling time and lower temperature through step-by-step cooling to ensure that the temperature range of the cooling material strips is reached. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a plan view of the utility model;

[0022] Figure 3 is a top view of the second water tank;

[0023] Figure identification: 1-first water trough, 101-opening, 2-second water trough, 3-third water trough, 4-fourth water trough, 5-guide plate, 6-water suction pipe, 7-water outlet pipe, 701-flushing hole, 8-water pump, 9-support rod, 10-fixed plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0025] Embodiment 1, as Figure 1 , 2 As shown in Figure 3, the utility model discloses a multi-stage polypropylene cooling water trough, including a first water trough 1 arranged at the outlet end of an extruder, a second water trough 2 is obliquely arranged directly below the first water trough 1, an opening 101 is arranged at the end of the first water trough 1 away from the extruder, the oblique upper end of the second water trough 2 is located directly below the opening 101, a third water trough 3 is obliquely arranged directly below the second water trough 2, the oblique upper end of the third water trough 3 is located directly below the oblique lower end of the second water trough 2, a fourth water trough 4 is horizontally arranged directly below the third water trough 3, the oblique lower end of the third water trough 3 leads to the fourth water trough 4, a plurality of guide plates 5 are arranged on the second water trough 2 and the third water trough 3, and a water suction pipe 6 connected to the first water trough 1 is arranged on the fourth water trough 4.

[0026] A plurality of guide plates 5 are alternately arranged on the side walls of the second water trough 2 and the third water trough 3, and the inclination direction of the guide plates 5 is toward the inclined lower end of the plate body. Specifically, the high-temperature water body for cooling the material strips forms a confluence under the action of the guide plates 5 on both sides of the second water trough 2 or the third water trough 3. The guide plates 5 can increase the residence time of the water body on the plate body, increase the length of the flow path, and then increase the area and time of contact with the air, so as to achieve the function of sufficient contact cooling.

[0027] Two guide plates 5 are symmetrically arranged at the inclined lower ends of the second water tank 2 and the third water tank 3, and a liquid channel is left between the two guide plates 5. Specifically, the two guide plates 5 can concentrate the water flow to the middle section of the plate body, ensuring that the impact force of the water flow is concentrated in the middle, thereby improving the stability of the overall structure.

[0028] The inclined upper end of the second water tank 2 is located outside the opening 101, and the inclined upper end of the third water tank 3 is located outside the inclined lower end of the second water tank 2. Specifically, the inclined upper end of the second water tank 2 extends outward, beyond the vertical plane corresponding to the opening 101, and the inclined upper end of the third water tank 3 extends outward, beyond the vertical plane corresponding to the inclined lower end of the second water tank 2, which ensures that the water flow will not overflow from the board body.

[0029] A plurality of water outlet pipes 7 are arranged at equal intervals along the long side of the first water tank 1, and the plurality of water outlet pipes 7 are connected to the water pumping pipe 6. Specifically, the water outlet pipes 7 can evenly distribute the cooled water on the first water tank 1, ensuring that the overall cooling effect is balanced and avoiding excessive water temperature difference at both ends of the first water tank 1.

[0030] The top surface of the water outlet pipe 7 is provided with a plurality of flushing holes 701, and the flushing holes 701 are vertically upward. Specifically, the flushing holes 701 can directly cool the material strips above them, further improving the cooling effect and meeting the production requirements.

[0031] The water pump 8 is provided on the water pump pipe 6, and the water pump 8 is provided at the fourth water tank 4. Specifically, the water pump 8 pumps water to the first water tank 1 to transport the cooled water upward. Preferably, a suction pump can be added to the first water tank 1 to improve the suction efficiency and increase the pressure at the flushing hole 701 so that the water column can directly act on the material strip.

[0032] The first water tank 1, the second water tank 2, the third water tank 3 and the fourth water tank 4 are connected and fixed by a support rod 9. Specifically, the side walls of the first water tank 1, the second water tank 2, the third water tank 3 and the fourth water tank 4 are welded and fixed to the support rod 9, and the support rod 9 plays a role in stabilizing the overall structure.

[0033] A fixing plate 10 is provided at the bottom of the fourth water tank 4, and the bottom of the support rod 9 is vertically fixed on the fixing plate 10. Specifically, the fixing plate 10 is made of solid metal material to further improve the overall stability.

[0034] The guide plate 5 is a straight plate or a curved plate. Specifically, the straight plate can guide the water flow alternately, and the water flow rate is faster, which can improve the cooling effect. The curved plate can slow down the water flow rate and increase the residence time of the water flow on the plate body, thereby extending the contact time with the air. Both can improve the cooling effect of the water body, and the specific cooling effect requirements can be selected according to actual data.

[0035] Embodiment 2: Based on embodiment 1, this embodiment proposes a specific working principle of a multi-stage polypropylene cooling water tank.

[0036] The specific implementation principle process is as follows:

[0037] The material strip is extruded from the outlet end of the extruder, enters the right end of the first water tank 1 and is submerged in water, and then is led out from the left end of the first water tank 1 to enter the next process. At this time, the water temperature increases due to heat exchange when the material strip is cooled, and the increased water enters the second water tank 2, the third water tank 3 and the fourth water tank 4 in turn. Under the action of the water pump 8, the water flow is guided from the left end of the fourth water tank 4 to the right end, and rises to the first water tank 1 through the water pump 6. Under the diversion of multiple outlet pipes 7, it is respectively guided to various places of the first water tank 1, so that the overall water temperature tends to be average. At the same time, the flushing hole 701 directly acts on the material strip, which can improve the cooling efficiency of the material strip.

[0038] Of course, the present invention may have many other implementation modes. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multi-stage polypropylene cooling water tank, comprising a first water tank (1) arranged at the outlet end of an extruder, characterized in that: A second water trough (2) is arranged obliquely directly below the first water trough (1); an opening (101) is arranged at one end of the first water trough (1) away from the extruder; the inclined upper end of the second water trough (2) is located directly below the opening (101); a third water trough (3) is arranged obliquely directly below the second water trough (2); the inclined upper end of the third water trough (3) is located directly below the inclined lower end of the second water trough (2); a fourth water trough (4) is arranged horizontally directly below the third water trough (3); the inclined lower end of the third water trough (3) leads to the fourth water trough (4); a plurality of guide plates (5) are arranged on the second water trough (2) and the third water trough (3); and a water extraction pipe (6) connected to the first water trough (1) is arranged on the fourth water trough (4).

2. A multi-stage polypropylene cooling water tank according to claim 1, characterized in that: A plurality of the guide plates (5) are alternately arranged on the side walls of the second water trough (2) and the third water trough (3), and the inclination direction of the guide plates (5) is toward the inclined lower end of the plate body.

3. A multi-stage polypropylene cooling water tank according to claim 2, characterized in that: Two guide plates (5) are symmetrically arranged at the inclined lower ends of the second water trough (2) and the third water trough (3), and a liquid channel is left between the two guide plates (5).

4. A multi-stage polypropylene cooling water tank according to claim 1, characterized in that: The inclined upper end of the second water trough (2) is located outside the opening (101), and the inclined upper end of the third water trough (3) is located outside the inclined lower end of the second water trough (2).

5. A multi-stage polypropylene cooling water tank according to claim 1, characterized in that: A plurality of water outlet pipes (7) are arranged at equal intervals along the long side of the first water tank (1), and the plurality of water outlet pipes (7) are connected to the water pumping pipe (6).

6. A multi-stage polypropylene cooling water tank according to claim 5, characterized in that: A plurality of flushing holes (701) are provided on the top surface of the water outlet pipe (7), and the flushing holes (701) face vertically upward.

7. A multi-stage polypropylene cooling water tank according to claim 1, characterized in that: The water pump (8) is provided on the water pump pipe (6), and the water pump (8) is arranged at the fourth water tank (4).

8. A multi-stage polypropylene cooling water tank according to claim 1, characterized in that: The first water tank (1), the second water tank (2), the third water tank (3) and the fourth water tank (4) are connected and fixed via a support rod (9).

9. A multi-stage polypropylene cooling water tank according to claim 8, characterized in that: A fixing plate (10) is provided at the bottom of the fourth water tank (4), and the bottom of the support rod (9) is vertically fixed on the fixing plate (10).

10. A multi-stage polypropylene cooling water tank according to claim 1, characterized in that: The guide plate (5) is a straight plate or an arc-shaped plate.

Images