CN214645174U

CN214645174U - PTFE membrane is with vertical draft oven

Info

Publication number: CN214645174U
Application number: CN202023341821.1U
Authority: CN
Inventors: 赵景鑫
Original assignee: Changzhou Fusheng New Material Technology Co ltd
Current assignee: Changzhou Fusheng New Material Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-09
Anticipated expiration: 2030-12-31

Abstract

The application relates to a PTFE membrane is with vertical draft oven relates to the field of PTFE membrane production facility, and it includes oven body, be equipped with heating element on the lateral wall of oven body inner chamber, it has the chamber door that can close to articulate on oven body's the lateral wall. This application has the effect that is heated the part and is changed into whole being heated, promote the material and be heated the degree of consistency, and then promote the tensile degree of consistency of material.

Description

PTFE membrane is with vertical draft oven

Technical Field

The application relates to the field of PTFE membrane production equipment, in particular to a PTFE membrane longitudinal drafting oven.

Background

The polytetrafluoroethylene, abbreviated as PTFE in English, has the advantages of acid and alkali resistance, chemical corrosion resistance, radiation resistance, excellent biocompatibility and the like, is a membrane material with excellent performance for filtering and separating micro-particles, and is an ideal membrane separation material in the industries of environmental protection, chemical engineering, biological medicine and the like. And the hollow fiber structure is made of the composite material, so that the filling density of the components can be obviously improved, the advantages of high-efficiency separation and space saving of membrane products are exerted, and the filtering precision and the filtering efficiency of the filtering material are further improved.

After the polytetrafluoroethylene material is melted and subjected to calendaring molding, the polytetrafluoroethylene material needs to be longitudinally stretched, and the polytetrafluoroethylene material needs to be heated again during longitudinal stretching to soften the polytetrafluoroethylene material so as to be stretched. The existing stretching method generally comprises introducing a heat source into a roller for conveying polytetrafluoroethylene so as to heat the polytetrafluoroethylene.

However, the inventor finds that heating by adding a heat source in the roller is effective only on the part directly contacted with the roller, and the heat absorbed by the surface not contacted with the roller is limited, so that the polytetrafluoroethylene is not uniformly heated, and the stretching is uniform.

SUMMERY OF THE UTILITY MODEL

In order to improve the inhomogeneous problem of material heating, the application provides a PTFE membrane is with vertical draft oven.

The application provides a PTFE membrane is with vertical draft oven adopts following technical scheme:

the utility model provides a PTFE membrane is with vertical draft oven, includes oven body, be equipped with heating element on the lateral wall of oven body inner chamber, it has the chamber door that can close to articulate on oven body's the lateral wall.

By adopting the technical scheme, the box door is closed, so that the inner cavity of the oven body forms an airtight cavity, and then the heating assembly heats, so that the temperature in the inner cavity of the oven body is uniform, the heating of materials entering the inner cavity of the oven body is uniform, and the subsequent stretching uniformity of the materials is improved.

Optionally, a baffle for shielding the heating assembly is arranged on the side wall of the inner cavity of the oven body, and a plurality of diathermanous holes are formed in the baffle.

Through adopting above-mentioned technical scheme, the heat that heating element produced passes through heat-permeable hole to the inner chamber of oven body for the heat is comparatively gentle even, promotes the degree of consistency to the material heating.

Optionally, the inner chamber of oven body is including heating the chamber and tensile chamber, the heating chamber includes the drying zone and the zone of heating, be equipped with the baffle on the roof in heating chamber, the drying zone separates through the baffle with the zone of heating, the material in the drying zone gets into the zone of heating earlier and then gets into tensile chamber.

Through adopting above-mentioned technical scheme, the material is earlier through drying, continues the heating afterwards, and is tensile at last, and the drying area is used for drying the fluid from the area on the material, and the drying area separates through the baffle with the zone of heating, reduces the oil stain and spatters the possibility of spilling the sword zone of heating.

Optionally, the top of the heating cavity is communicated with an air suction pipe.

Through adopting above-mentioned technical scheme, the breathing pipe is convenient for siphon away the oil gas that the fluid heating formed.

Optionally, a plurality of stretching rollers are rotatably connected in the stretching cavity, and each stretching roller has a higher rotation speed than the previous stretching roller.

Through adopting above-mentioned technical scheme, the rotational speed of stretching roller is one faster than one, forms the differential conveying, and then realizes stretching the material, and is convenient for realize stretching many times, promotes tensile effect, reduces and once stretches too much and lead to the cracked possibility of material.

Optionally, a heat inlet hole is formed in the stretching roller along the axial direction of the stretching roller, and the heat inlet hole penetrates through one end of the stretching roller.

Through adopting above-mentioned technical scheme, advance the inside that the hot hole is convenient for the heat got into stretching roller for stretching roller's temperature is the same with the temperature of stretching the intracavity, and then promotes the tensile degree of consistency of material.

Optionally, a discharge port is formed in the side wall, away from the heating cavity, of the stretching cavity, a guide-out roller for receiving materials conveyed out from the discharge port is arranged on the side wall of the oven body, and a blowing device for cooling the materials on the guide-out roller is arranged above the guide-out roller.

By adopting the technical scheme, the blowing and sealing device cools the material led out from the discharge hole, so that the material is formed at an accelerated speed, and the subsequent rolling is facilitated.

Optionally, the blowing device includes a fan and a blowing box, the fan is mounted on the side wall of the oven body, the blowing box is located at the air outlet end of the fan, a blowing opening is formed in one end, facing the guide-out roller, of the blowing box, and the length of the blowing opening is greater than the width of the material.

Through adopting above-mentioned technical scheme, the fan promotes the wind regime, and the mouth of blowing then all blows everywhere of material for the cooling rate is the same everywhere in the material, and then promotes the cooling effect.

Optionally, a pyramid is arranged at the bottom of the blowing box, a small end of the pyramid faces the guide roller, and the blowing port is arranged at the small end of the pyramid.

Through adopting above-mentioned technical scheme, the setting of pyramis increases the wind pressure of the wind that the mouth of blowing blew out, has further promoted the cooling effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the heating assembly and the box door, the effect of changing local heating into integral heating, improving the uniformity of material heating and further improving the uniformity of material stretching is achieved;

2. through discharge gate, derivation roller and blast apparatus's setting, cool off the material of deriving from the discharge gate, shaping with higher speed, the follow-up rolling of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of the whole in the embodiment of the present application.

Fig. 2 is a schematic structural diagram of a heating assembly embodied in an embodiment of the present application.

FIG. 3 is a schematic diagram of the material winding route of the drying roller, the heating roller and the stretching roller in the embodiment of the application.

Fig. 4 is a schematic structural diagram of an embodiment of the blowing device in the present application.

Description of reference numerals: 1. a baking oven body; 11. a heating cavity; 111. a drying zone; 1111. a first drying roller; 1112. a second drying roller; 1113. a third drying roller; 1114. a fourth drying roller; 112. a heating zone; 1121. a first heating roller; 1122. a second heating roller; 1123. a third heating roller; 1124. a fourth heating roller; 113. a transfer slot; 114. a partition plate; 115. a conveying trough; 1151. a conveying roller; 116. an air intake duct; 117. a heat inlet hole; 12. a stretching chamber; 121. a first stretching roller; 122. a second stretching roller; 123. a third stretching roller; 124. a fourth stretching roller; 125. a fifth drawing roll; 126. a sixth stretching roller; 127. a seventh drawing roll; 128. an eighth stretching roller; 129. a ninth drawing roll; 13. a box door; 14. a baffle plate; 141. a thermally conductive aperture; 15. a heating assembly; 16. a discharge port; 17. a delivery roller; 18. a blowing device; 181. a fan; 182. a blowing box; 183. a pyramid part; 184. an air blowing opening.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses PTFE membrane is with vertical draft oven.

Referring to fig. 1, a PTFE film longitudinal drawing oven comprises an oven body 1, wherein a heating cavity 11 and a stretching cavity 12 are formed in the oven body 1, and the heating cavity 11 and the stretching cavity 12 are communicated through a conveying groove 113. Two doors 13 are hinged to the side wall of the oven body 1, one door is used for closing the heating cavity 11, and the other door is used for closing the stretching cavity 12. The heating cavity 11 comprises a drying area 111 and a heating area 112, a partition plate 114 is fixedly connected to the top wall of the heating cavity 11 and used for separating the drying area 111 from the heating area 112, and a conveying groove 115 for materials to pass through is arranged between the partition plate 114 and the bottom wall of the heating cavity 11. The top of the heating cavity 11 is communicated with an air suction pipe 116 for sucking away oil gas formed after oil liquid on the material is heated. The material penetrates into the drying area 111, dries oil on the material, simultaneously realizes primary heating, then enters the heating area 112 for heating, and finally enters the stretching cavity 12 for stretching.

Referring to fig. 1 and 2, the heating module 15 is fixedly connected to the side walls and the bottom wall of the heating cavity 11 and the stretching cavity 12, the heating module 15 may be an electric heating tube, the baffle plate 14 is further fixedly connected to the side walls of the heating cavity 11 and the stretching cavity 12, the electric heating tube is used for shielding the electric heating tube, the heat penetration holes 141 are formed in the baffle plate 14, the heat penetration holes 141 are uniformly arranged on the baffle plate 14, the heat generated by the heating module 15 is uniformly divided, and therefore the heat in the heating cavity 11 and the stretching cavity 12 is uniform.

Referring to fig. 2 and 3, a first drying roller 1111, a second drying roller 1112, a third drying roller 1113, and a fourth drying roller 1114 are sequentially rotatably connected in the drying zone 111, the first drying roller 1111 is located at the lowermost position, the second drying roller 1112 and the fourth drying roller 1114 are at the same height and are all located at the middle position, and the third drying roller 1113 is located at the uppermost position. A first heating roller 1121, a second heating roller 1122, a third heating roller 1123, and a fourth heating roller 1124 are rotatably connected in this order within the heating zone 112, the first heating roller 1121 is positioned at the lowermost position, the second heating roller 1122 and the fourth heating roller 1124 are at the same height and are positioned at the middle position, and the third heating roller 1123 is positioned at the uppermost position. The conveying groove 115 is provided with conveying rollers 1151, and the conveying rollers 1151 are in transmission connection with the side wall of the heating cavity 11. The material passes under first drying roller 1111, then passes under second drying roller 1112, then passes over third drying roller 1113, then passes under the left side of fourth drying roller 1114, then passes under conveyor roller 1151, then passes under the left side of second heated roller 1122, then passes over third heated roller 1123, then passes under the right side of fourth heated roller 1124, and finally passes under the left side of first drying roller 1111 into transfer chute 113 to transfer to draw chamber 12.

Referring to fig. 1 and 3, a discharge hole 16 is formed in a side wall of the stretching cavity 12 away from the heating cavity 11 for allowing the material to pass through. A plurality of stretching rollers are rotatably connected in the stretching cavity 12, and include a first stretching roller 121, a second stretching roller 122, a third stretching roller 123, a fourth stretching roller 124, a fifth stretching roller 125, a sixth stretching roller 126, a seventh stretching roller 127, an eighth stretching roller 128 and a ninth stretching roller 129 which are sequentially arranged. The first stretching roller 121 and the ninth stretching roller 129 are the same in height, the second stretching roller 122 and the eighth stretching roller 128 are the same in height, the third stretching roller 123 and the seventh stretching roller 127 are the same in height, and the fourth stretching roller 124, the fifth stretching roller 125 and the sixth stretching roller 126 are the same in height. The material sequentially passes through the oven body 1 from the discharge port 16 from the right side of the first stretching roller 121, the left side of the second stretching roller 122, the right side of the third stretching roller 123, the left side of the fourth stretching roller 124, the lower side of the fifth stretching roller 125, the upper side of the sixth stretching roller 126, the left side of the seventh stretching roller 127, the right side of the eighth stretching roller 128 and the left side of the ninth stretching roller 129. The rotating speeds of the nine stretching rollers are sequentially increased, and the materials are stretched through differential speed.

Referring to fig. 1, all of the drying rollers, the heating rollers, and the stretching rollers are opened with a heat inlet hole 117 at one end facing the door 13 for conducting heat into the rollers.

Referring to fig. 3, a guiding-out roller 17 is rotatably connected to the side wall of the oven body 1 for receiving the material conveyed out from the discharge port 16, and a blowing device 18 is arranged above the guiding-out roller 17 for cooling the material on the guiding-out roller 17. The blowing device 18 comprises a fan 181 and a blowing box 182, the fan 181 is fixedly connected to the side wall of the oven body 1, and the blowing box 182 is fixedly connected to the air outlet end of the fan 181. The bottom of the blowing box 182 is communicated with a taper 183, the small end of the taper 183 faces the delivery roller 17, the small end of the taper 183 faces one end of the delivery roller 17 and is provided with a blowing port 184, and the length of the blowing port 184 is larger than the width of the material and is used for cooling the material on the delivery roller 17.

The implementation process of the longitudinal drafting oven for the PTFE film in the embodiment of the application is as follows: the operator firstly passes the material from the drying roller, the heating roller and the stretching roller in sequence, and then the material passes through the material outlet 16. The door 13 is then closed and the heating assembly 15 begins to heat up, and when the temperature in the heating chamber 11 and the stretching chamber 12 reaches a predetermined value, the material begins to be conveyed. The material penetrates drying zone 111 earlier, and the fluid on the drying material realizes preliminary heating simultaneously, and the entering heating zone 112 heats, and it is tensile to enter tensile chamber 12 at last. When the material is rolled, a part of the material for guiding is cut off.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a PTFE membrane is with vertical draft oven, includes oven body (1), its characterized in that: a heating assembly (15) is arranged on the side wall of the inner cavity of the oven body (1), and a closable oven door (13) is hinged to the side wall of the oven body (1); the side wall of the inner cavity of the oven body (1) is provided with a baffle (14) for shielding the heating assembly (15), and the baffle (14) is provided with a plurality of heat-transmitting holes (141).

2. The longitudinal drawing oven for PTFE membranes according to claim 1, characterized in that: the inner cavity of oven body (1) includes heating chamber (11) and tensile chamber (12), heating chamber (11) are including drying zone (111) and heating zone (112), be equipped with baffle (114) on the roof of heating chamber (11), drying zone (111) and heating zone (112) separate through baffle (114), the material in drying zone (111) gets into heating zone (112) earlier and then gets into tensile chamber (12).

3. The longitudinal drawing oven for PTFE films according to claim 2, characterized in that: the top of the heating cavity (11) is communicated with an air suction pipe (116).

4. The longitudinal drawing oven for PTFE films according to claim 2, characterized in that: a plurality of stretching rollers are rotationally connected in the stretching cavity (12), and the rotating speed of each stretching roller is higher than that of the previous stretching roller.

5. The longitudinal drawing oven for the PTFE film according to claim 4, wherein: a heat inlet hole (117) is formed in the stretching roller along the axial direction of the stretching roller, and the heat inlet hole (117) penetrates through one end of the stretching roller.

6. The longitudinal drawing oven for the PTFE film according to claim 5, wherein: the utility model discloses a material drying oven, including oven body (1), tensile chamber (12), discharge gate (16) have been seted up on keeping away from the lateral wall of heating chamber (11) in tensile chamber (12), be equipped with on the lateral wall of oven body (1) and be used for catching derivation roller (17) from the material that discharge gate (16) conveyed out, the top of derivation roller (17) is equipped with and is used for carrying out refrigerated blast apparatus (18) to the material on derivation roller (17).

7. The longitudinal drawing oven for PTFE membranes according to claim 6, characterized in that: the blowing device (18) comprises a fan (181) and a blowing box (182), the fan (181) is installed on the side wall of the oven body (1), the blowing box (182) is arranged at the air outlet end of the fan (181), a blowing opening (184) is formed in one end, facing the guide-out roller (17), of the blowing box (182), and the length of the blowing opening (184) is larger than the width of the material.

8. The longitudinal drawing oven for PTFE membranes according to claim 7, characterized in that: the bottom of the blowing box (182) is provided with a cone part (183), the small end of the cone part (183) faces the guide-out roller (17), and the blowing port (184) is arranged at the small end of the cone part (183).