Drying device for double-wall corrugated pipe production

Abstract

The utility model belongs to the technical field of double-wall corrugated pipe production, and particularly relates to a drying device for double-wall corrugated pipe production, which comprises a drying box, an outlet and an inlet are respectively arranged on the left side wall and the right side wall of the drying box, a water removal mechanism and a drying mechanism are arranged inside the drying box, and the water removal mechanism comprises a fixed cylinder fixed inside the drying box. A fixing ring is detachably connected to the interior of the fixing cylinder, a plurality of rotating rollers are rotatably arranged on the fixing ring and are uniformly arranged along the circumference of the fixing ring, a plurality of groups of silica gel rods are fixedly arranged on the outer side of each rotating roller, the plurality of groups of silica gel rods are uniformly arranged along the circumference of the outer wall of the rotating roller, and a water absorption layer wraps the exterior of each group of silica gel rods. The water absorbing layers outside the multiple sets of silica gel rods remove water on the outer wall of the double-wall corrugated pipe, the ends of the silica gel rods make contact with the bottoms of the troughs of the double-wall corrugated pipe, the water removing effect on the double-wall corrugated pipe is better, and the pressure of follow-up drying is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of double-wall corrugated pipe production, and specifically relates to a drying device for the production of double-wall corrugated pipes. Background Art

[0002] Double-wall corrugated pipe is a new type of pipe with an annular outer wall and a smooth inner wall. Double-wall corrugated pipe has the characteristics of strong resistance to external pressure, low engineering cost and long service life. It is mainly used in large-scale water supply, water supply, drainage, sewage, exhaust, subway ventilation, mine ventilation and farmland irrigation with working pressure below 0.6MPa.

[0003] The existing production process of double-wall corrugated pipes is generally as follows: the raw materials are first dried and mixed and then stirred evenly, and then the mixed raw materials are put into an extruder, and toughening agents and antioxidants are added at the same time for heating and extrusion to obtain double-wall corrugated pipe blanks, and the double-wall corrugated pipe blanks are sent to a molding device for plastic molding to obtain double-wall corrugated pipe molded parts, and then the double-wall corrugated pipe molded parts are sent to a cooling device for cooling, and after cooling, they are dried and finally cut according to production size requirements.

[0004] However, the existing double-wall corrugated pipe drying devices have certain defects. For example, a cooling and drying device for the production of HDPE double-wall corrugated pipes with application number CN202221181150.3 includes a machine body and a water removal device. The water removal device includes a driving ring and a plurality of rollers. Guide rails are provided on the left and right sides of the driving ring. The rollers are slidably connected to the left and right sides of the driving ring through the guide rails. A screw is threadedly connected to the inner side of the driving ring. The end of the screw away from the driving ring is rotatably connected to a water-absorbing sponge. A drying fan is fixedly installed on the right end of the inside of the machine body. After the HDPE double-wall corrugated pipe is sprayed and cooled by the spray plate, the water-absorbing sponge is driven to rotate by the screw to dewater the outside of the product, and then the surface of the product is dried by the drying fan.

[0005] Since the outer wall of the double-wall corrugated pipe is annular in structure, for double-wall corrugated pipes with high peak height, the absorbent sponge cannot completely remove the cooling water remaining in the trough during the process of removing water from the outer side, resulting in poor water removal effect, which increases the workload of subsequent drying. Utility Model Content

[0006] The purpose of the utility model is to provide a drying device for producing double-wall corrugated pipes to solve the technical problems raised in the above-mentioned background technology.

[0007] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0008] A drying device for producing double-wall corrugated pipes, comprising a drying box, wherein the left and right side walls of the drying box are respectively provided with an outlet and an inlet, a dewatering mechanism and a drying mechanism are arranged inside the drying box, and the drying mechanism is arranged on the left inner wall of the drying box, the dewatering mechanism comprises a fixed cylinder fixed inside the drying box, a fixed ring is detachably connected to the interior of the fixed cylinder, the double-wall corrugated pipe is located inside the fixed ring, a plurality of rotating rollers are rotatably provided on the fixed ring, the plurality of rotating rollers are evenly arranged along the circumference of the fixed ring, a plurality of groups of silicone rods are fixedly provided on the outside of each of the rotating rollers, the plurality of groups of silicone rods are evenly arranged along the circumference of the outer wall of the rotating roller, and the outside of each group of silicone rods is wrapped with a water absorbing layer.

[0009] As an improvement, the drying mechanism includes an outer cylinder fixed on the left inner wall of the drying box, an inner cylinder is provided inside the outer cylinder, a sealed drying chamber is formed between the inner cylinder and the outer cylinder, a plurality of groups of blowing hoses are provided on the inner cylinder, one end of the blowing hoses are located in the drying chamber, and the other end passes through the inner cylinder, a fan is fixed on the outer wall of the outer cylinder, and a heating device is provided inside the drying chamber.

[0010] As a further improvement, multiple groups of the blowing hoses are evenly distributed along the circumference of the inner cylinder, each group of the blowing hoses includes multiple short blowing hoses and multiple long blowing hoses, the lengths of the multiple short blowing hoses are smaller than the length of the long blowing hoses, and the multiple short blowing hoses and the multiple long blowing hoses are spaced apart along the axial direction of the inner cylinder.

[0011] As a further improvement, the outer wall of the double-wall corrugated tube is provided with crests and troughs, and a group of the silicone rods facing the center point of the fixing ring are in contact with the bottom of the trough.

[0012] As a further improvement, a conveying mechanism is further provided in the drying box, and the conveying mechanism is provided with two groups, and the two groups of the conveying mechanism are respectively located on both sides of the fixed cylinder.

[0013] As a further improvement, the conveying mechanism includes a support frame, and two groups of conveying rollers are provided on the top of the support frame. The two groups of conveying rollers each include two rotating rollers, and the two rotating rollers are both truncated cone-shaped. The end walls of the two rotating rollers with smaller diameters are connected to each other, and the two groups of conveying rollers are connected by chain transmission.

[0014] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] The utility model provides a drying device for producing double-wall corrugated pipes. The water-absorbing layers on the outside of multiple groups of silicone rods remove water from the outer wall of the double-wall corrugated pipes. The ends of the silicone rods are in contact with the bottom of the trough of the double-wall corrugated pipes. This has a better water removal effect on the double-wall corrugated pipes and reduces the pressure of subsequent drying.

[0016] The lengths of multiple short blowing hoses are all shorter than those of long blowing hoses, and multiple short blowing hoses and multiple long blowing hoses are spaced apart along the axial direction of the inner tube. Multiple short blowing hoses can dry the crests of the double-wall corrugated pipe, and multiple long blowing hoses can dry the troughs of the double-wall corrugated pipe, resulting in better drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of this embodiment;

[0018] Figure 2 Schematic diagram of the structure of the water removal mechanism in this embodiment;

[0019] Figure 3 is a cross-sectional view of the drying mechanism in this embodiment;

[0020] Figure 4 is a three-dimensional cross-sectional view of the drying mechanism in this embodiment;

[0021] Figure 5 Schematic diagram of the structure of the transmission mechanism in this embodiment;

[0022] Wherein: 1-drying box, 2-inlet, 3-water removal mechanism, 31-fixed cylinder, 32-fixed ring, 33-rotating roller, 34-silicone rod, 4-drying mechanism, 41-outer cylinder, 42-inner cylinder, 43-drying chamber, 44-blowing hose, 45-short blowing hose, 46-long blowing hose, 5-transmission mechanism, 51-support frame, 52-transmission roller, 53-rotating roller. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the specific implementation methods and the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] like Figure 1-5 As shown, a drying device for producing double-wall corrugated pipes comprises a drying box 1, and an outlet and an inlet 2 are respectively arranged on the left and right side walls of the drying box 1. The double-wall corrugated pipe enters the drying box 1 through the inlet 2 and leaves the drying box 1 through the outlet after drying. A dewatering mechanism 3 and a drying mechanism 4 are arranged inside the drying box 1. The drying mechanism 4 is fixedly arranged on the left inner wall of the drying box 1. The dewatering mechanism 3 is used for dewatering and absorbing water from the outer wall of the double-wall corrugated pipe, and the drying mechanism 4 is used for drying the outer wall of the double-wall corrugated pipe.

[0026] The water removal mechanism 3 includes a fixed cylinder 31 fixed inside the drying box 1, and the interior of the fixed cylinder 31 is detachably connected to a fixed ring 32, and the double-walled corrugated pipe is located inside the fixed ring 32. A plurality of rotating rollers 33 are rotatably provided on the fixed ring 32, and the plurality of rotating rollers 33 are evenly arranged along the circumference of the fixed ring 32. A plurality of groups of silicone rods 34 are fixedly provided on the outside of each rotating roller 33, and the plurality of groups of silicone rods 34 are evenly arranged along the outer circumference of the rotating roller 33. The outside of each group of silicone rods 34 is wrapped with a water-absorbing layer, wherein a group of silicone rods 34 facing the center of the fixed ring 32 contacts the bottom of the trough on the outer wall of the double-walled corrugated pipe.

[0027] Preferably, the water-absorbing layer is made of a water-absorbing soft material.

[0028] In this embodiment, a conveying mechanism 5 is further provided in the drying box 1. The conveying mechanism 5 is provided with two groups. The two groups of conveying mechanisms 5 are respectively located on both sides of the fixed cylinder 31. The conveying mechanism 5 is used to transport the double-wall corrugated pipe.

[0029] The conveying mechanism 5 conveys the double-walled corrugated pipe into the fixed cylinder 31, and the water-absorbing layer on the silicone rod 34 absorbs the water on the outer wall of the double-walled corrugated pipe. Driven by the conveying mechanism 5, the double-walled corrugated pipe moves toward the outlet of the drying box 1. At the same time, since the silicone rod 34 contacts the bottom of the trough on the outer wall of the double-walled corrugated pipe, the movement of the double-walled corrugated pipe will simultaneously drive the multiple rotating rollers 33 on the fixed ring 32 to rotate, thereby achieving the dewatering effect on the outer wall of the double-walled corrugated pipe, and the dewatering effect is better.

[0030] In this embodiment, the conveying mechanism 5 includes a support frame 51, and two groups of conveying rollers 52 are arranged on the top of the support frame 51. The two groups of conveying rollers 52 each include two rotating rollers 53. The two rotating rollers 53 are both truncated cone-shaped. The end walls of the two rotating rollers 53 with smaller diameters are connected to each other. The two groups of conveying rollers 52 are connected by chain transmission. Specifically, a driving motor is fixedly provided on the support frame 51, and the output end of the driving motor is fixedly connected to the rotating rollers 53 of one group of conveying rollers 52. The ends of the two groups of conveying rollers 52 are connected by chain transmission. The driving motor drives one group of conveying rollers 52 to rotate, thereby driving the two groups of conveying rollers 52 to rotate, thereby realizing the transportation of double-wall corrugated pipes.

[0031] In this embodiment, the drying mechanism 4 includes an outer cylinder 41 fixed on the inner wall of the left side of the drying box 1, an inner cylinder 42 is provided inside the outer cylinder 41, a sealed drying chamber 43 is formed between the inner cylinder 42 and the outer cylinder 41, a plurality of blowing hoses 44 are provided on the inner cylinder 42, one end of the blowing hoses 44 are all located inside the drying chamber 43, the other end of the blowing hoses 44 passes through the inner cylinder 42 and extends toward the central axis of the inner cylinder 42, a fan is fixed on the outer wall of the outer cylinder 41, the output end of the fan is connected to the drying chamber 43, and a heating device is provided inside the drying chamber 43.

[0032] The conveying mechanism 5 conveys the double-walled corrugated pipe from the dewatering mechanism 3 to the drying mechanism 4. After the double-walled corrugated pipe enters the drying mechanism 4, it is located inside the inner cylinder 42, and air is conveyed to the drying chamber 43 through the fan. At the same time, the heating device heats the air in the drying chamber 43, and then blows hot air to the outer wall of the double-walled corrugated pipe through multiple groups of blowing hoses 44 to achieve drying of the double-walled corrugated pipe.

[0033] Preferably, the heating device is electric heating, that is, a heating tube is arranged in the drying chamber 43 to heat the air inside the drying chamber 43 .

[0034] Preferably, multiple groups of blowing hoses 44 are evenly distributed along the circumference of the inner cylinder 42, and each group of blowing hoses 44 includes multiple short blowing hoses 45 and multiple long blowing hoses 46. The length of the short blowing hose 45 is less than the length of the long blowing hose 46. The multiple short blowing hoses 45 and the multiple long blowing hoses 46 are arranged at intervals along the axial direction of the inner cylinder 42. When the double-wall corrugated pipe moves toward the outlet of the drying box 1, the multiple short blowing hoses 45 can dry the peaks of the double-wall corrugated pipe, and the multiple long blowing hoses 46 can dry the troughs of the double-wall corrugated pipe, and the drying effect is good.

[0035] When the present embodiment is in use, the double-walled corrugated pipe enters the drying box 1 from the inlet 2 of the drying box 1, and the conveying mechanism 5 drives the double-walled corrugated pipe to move. After the double-walled corrugated pipe enters the fixing ring 32, the water-absorbing layer outside the silicone rod 34 absorbs and removes the water on the outer wall of the double-walled corrugated pipe. At the same time, the multiple rotating rollers 33 rotate with the movement of the double-walled corrugated pipe. The double-walled corrugated pipe after water removal enters the inner cylinder 42, and the fan blows air into the drying chamber 43. At the same time, the heating device heats the air in the drying chamber 43, and then the multiple groups of blowing hoses 44 blow the hot air to the outer wall of the double-walled corrugated pipe, so as to achieve the effect of drying the double-walled corrugated pipe.

[0036] In the utility model, the water absorbing layers outside the plurality of groups of silicone rods remove water from the outer wall of the double-walled corrugated pipe, and the ends of the silicone rods contact the bottom of the trough of the double-walled corrugated pipe, which has a better water removal effect on the double-walled corrugated pipe.

[0037] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A drying device for producing double-wall corrugated pipes, comprising a drying box, wherein an outlet and an inlet are respectively arranged on the left and right side walls of the drying box, characterized in that: A dewatering mechanism and a drying mechanism are provided inside the drying box. The drying mechanism is arranged on the left inner wall of the drying box. The dewatering mechanism includes a fixed cylinder fixed inside the drying box. A fixed ring is detachably connected to the inside of the fixed cylinder. The double-wall corrugated pipe is located inside the fixed ring. A plurality of rotating rollers are rotatably provided on the fixed ring. The plurality of rotating rollers are evenly arranged along the circumference of the fixed ring. A plurality of groups of silicone rods are fixedly provided on the outside of each of the rotating rollers. The plurality of groups of silicone rods are evenly arranged along the circumference of the outer wall of the rotating roller. The outside of each group of silicone rods is wrapped with a water-absorbing layer.

2. The drying device for producing double-wall corrugated pipes according to claim 1, characterized in that: The drying mechanism includes an outer cylinder fixed on the left inner wall of the drying box, an inner cylinder is arranged inside the outer cylinder, a sealed drying chamber is formed between the inner cylinder and the outer cylinder, a plurality of blowing hoses are arranged on the inner cylinder, one end of the blowing hoses is located in the drying chamber, and the other end passes through the inner cylinder, a fan is fixed on the outer wall of the outer cylinder, and a heating device is arranged inside the drying chamber.

3. The drying device for producing double-wall corrugated pipes according to claim 2, characterized in that: Multiple groups of the blowing hoses are evenly distributed along the circumference of the inner cylinder, each group of the blowing hoses includes multiple short blowing hoses and multiple long blowing hoses, the lengths of the multiple short blowing hoses are all shorter than the length of the long blowing hoses, and the multiple short blowing hoses and the multiple long blowing hoses are spaced apart along the axial direction of the inner cylinder.

4. The drying device for producing double-wall corrugated pipes according to claim 1, characterized in that: The outer wall of the double-wall corrugated pipe is provided with crests and troughs, and a group of the silicone rods facing the center point of the fixing ring are in contact with the bottom of the trough.

5. The drying device for producing double-wall corrugated pipes according to any one of claims 1 to 4, characterized in that: A conveying mechanism is also provided in the drying box. The conveying mechanism is provided with two groups, and the two groups of the conveying mechanism are respectively located on both sides of the fixed cylinder.

6. The drying device for producing double-wall corrugated pipes according to claim 5, characterized in that: The conveying mechanism includes a support frame, and two groups of conveying rollers are arranged on the top of the support frame. The two groups of conveying rollers each include two rotating rollers, and the two rotating rollers are both truncated cone-shaped. The end walls of the two rotating rollers with smaller diameters are connected to each other, and the two groups of conveying rollers are connected by chain transmission.

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