CN111822267B - Waterproofing membrane pitch coating charging equipment - Google Patents
Waterproofing membrane pitch coating charging equipment Download PDFInfo
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- CN111822267B CN111822267B CN202010569600.5A CN202010569600A CN111822267B CN 111822267 B CN111822267 B CN 111822267B CN 202010569600 A CN202010569600 A CN 202010569600A CN 111822267 B CN111822267 B CN 111822267B
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- conveying pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1026—Valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0245—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
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Abstract
The invention relates to asphalt coating feeding equipment for a waterproof coiled material, which comprises a blanking device for coating the upper surface of the coiled material from the upper part and a feeding device for coating the lower surface of the coiled material from the lower part, wherein the blanking device comprises a double-layer jacket structure consisting of a coating inner pipe and a coating outer pipe, a coating pipe with a blanking port penetrating through the coating inner pipe and the coating outer pipe at the bottom, a coating conveying pipe for supplying materials to the coating pipe and an oil conveying pipe for conveying heat conduction oil to the coating outer pipe; the feeding device comprises a material pool for containing asphalt, a feeding roller which is arranged in the material pool and partially immersed in the asphalt and is used for coating the asphalt on the lower surface of the base fabric by rotating, a flash hopper which is used for coating by utilizing an opening on the upper surface, and a flash conveying pipe which is connected to the lower part of the flash hopper and used for supplying the flash hopper; the blanking device is arranged above the feeding device, and the flash mechanism is arranged behind the feeding roller. The device can not cause the conditions of large tension of the base fabric and serious contraction in the rear-section process.
Description
Technical Field
The invention relates to the technical field of waterproof coiled material production equipment, in particular to waterproof coiled material asphalt coating feeding equipment.
Background
The asphalt waterproof coiled material is a coiled material made of asphalt material, base material and surface spreading anti-sticking material, also called asphalt felt, and is commonly used for a pasting type waterproof layer. The asphalt waterproof coiled material comprises a filled coiled material and a non-filled coiled material. The roll-shaped material is made by impregnating base materials such as thick paper or glass fiber cloth, asbestos cloth, cotton and linen fabrics and the like with petroleum asphalt and is called as a base coiled material; asbestos, rubber powder, etc. are mixed into asphalt material, and the rolled material is called rolled coiled material, i.e. tubeless coiled material.
The modified asphalt waterproof coiled material is commonly called modified asphalt felt, and is a curlable sheet-like waterproof material which is prepared by taking a glass fiber felt, a polyester felt, a jute cloth, a polyethylene film, a polyester non-woven fabric, a metal foil or two composite materials as a base, taking synthetic high molecular polymer modified asphalt and oxidized asphalt with the mixing amount of not less than 10% as dip-coating materials and taking powder, sheet and granular mineral materials, synthetic high molecular films and metal films as covering materials. Due to inherent disadvantages of low softening point, high penetration and low temperature brittleness of asphalt itself, the application range of the asphalt is limited when the asphalt is used as a waterproof material. After the asphalt is modified by adding the high molecular polymer, the performances are greatly improved, the weather resistance, the temperature sensitivity (high-temperature characteristic and low-temperature flexibility) and the adaptability to substrate cracking are obviously improved, and the waterproof material prepared by using the modified asphalt is realistic and possible from the traditional 'heavy, thick, long and big' era to the 'light, thin, short and small' industrialized era.
The production process of the waterproof roll material is to dip-coat asphalt on base fabric such as glass fiber cloth or non-woven fabric, and then extrude the base fabric dipped with asphalt to tamp the asphalt on the base fabric. Two procedures of pre-dipping and coating are needed during production; the pre-dipping has the function of soaking the pre-dipping asphalt into the tire base fabric, so that the tire base fabric can be completely soaked with the asphalt, and water channeling and layering of a finished product after the finished product is in contact with water are avoided; the function of coating is to make the asphalt waterproof layers on the upper and lower surfaces of the base fabric of the waterproof roll material meet certain thickness requirements, and more importantly, to finally obtain a tight and uniform waterproof roll material. The currently common coating process is as follows: the method only depends on the adhesion effect of the base cloth to the asphalt coating material to enable the asphalt coating material to stay on the upper surface and the lower surface of the base cloth, so that the thickness of the asphalt on the upper surface and the lower surface of the produced asphalt waterproof coiled material is not easy to adjust, and the base cloth has large tension and serious shrinkage in the later process due to the continuous pressure effect of the compression roller on the base cloth. Accordingly, there is a need for improvements in existing coating devices.
Disclosure of Invention
The invention aims to overcome at least one defect of the prior art and provides waterproof coiled material asphalt coating feeding equipment which is used for solving the problems of large tension and large shrinkage rate of waterproof coiled materials produced by immersed asphalt coating equipment.
The technical scheme adopted by the invention is as follows:
a waterproof coiled material asphalt coating feeding device comprises a blanking device for coating the upper surface of a coiled material from the upper part and a feeding device for coating the lower surface of the coiled material from the lower part, wherein the blanking device comprises a coating pipe which is composed of a coating inner pipe and a coating outer pipe and has a double-layer jacket structure, a coating material conveying pipe for supplying materials to the coating pipe and an oil conveying pipe for conveying heat conduction oil to the coating outer pipe;
the bottom of the coating pipe is provided with a blanking port penetrating through the coating inner pipe and the coating outer pipe;
the feeding device comprises a material pool for containing asphalt and a feeding roller which is arranged in the material pool, is partially immersed in the asphalt and is used for coating the asphalt on the lower surface of the base fabric by rotating;
the feeding device also comprises a flash mechanism consisting of a flash hopper for coating by utilizing an opening on the upper surface and a flash conveying pipe which is connected to the lower part of the flash hopper and supplies materials to the flash hopper;
the blanking device is arranged above the feeding device, two ends of the base fabric entering and leaving the feeding device are defined as the front and the rear, and the flash mechanism is arranged behind the feeding roller;
and valves for controlling flow are arranged on the coating material conveying pipe, the oil conveying pipe and the flash material conveying pipe.
In the technical scheme, a mode that a press roll is used for pressing the pre-soaked base fabric into an asphalt coating material pool to enable the base fabric to be adhered with the asphalt coating material on the two sides and then leave the material pool to coat the asphalt on the surface of the base fabric is abandoned, and a mode that waterproof coiled material asphalt coating feeding equipment is used for feeding the base fabric conveyed in the middle of the equipment in an upper surface blanking mode and a lower surface feeding mode is adopted for coating.
In the technical scheme, the blanking uses the coating pipe, the coating pipe is formed by welding and combining the inner pipe and the outer pipe, on one hand, asphalt from the batching pool is conveyed to the coating pipe through the coating material conveying pipe, on the other hand, heat conduction oil with proper temperature is conveyed to the coating outer pipe through the oil conveying pipe, heat is supplied to the asphalt in the coating inner pipe through the flowing heat conduction oil, and the proper temperature and good fluidity of the asphalt are kept. The bottom of the coating pipe is provided with an opening penetrating through the inner pipe and the outer pipe for asphalt blanking. Through the blanking speed of adjustment pitch and the transfer rate of child base cloth, the thickness of steerable child base cloth upper surface pitch layer conveniently makes the waterproofing membrane of different thickness.
Among this technical scheme, loading attachment is including locating child base cloth below the material loading roller and the material pond that is used for holding pitch, and the material pond is inside and the partial immersion pitch in, through rotating to child base cloth lower surface coating pitch to the material pond is located to the material roller. In the half immersion pitch of material loading roller, half on pitch, the material loading roller rotates the upper surface highest point tangent line that forms and child base cloth lower surface contact, lasts the roll through the material loading roller, and child base cloth only need last forward steadily convey alright evenly coat the pitch, the shrinkage deformation of child base cloth that has significantly reduced.
In this technical scheme, loading attachment still includes flash mechanism, and wherein the function of flash fill is further for being located the lower surface coating pitch of the horizontal conveying of top child base cloth, and flash fortune material pipe is in the continuous transport of pitch to flash fill, and pitch overflows from the upper surface opening of flash fill, adheres to on the child base cloth lower surface.
According to the technical scheme, the waterproof coiled material asphalt coating feeding equipment has the advantages that the tire base cloth is horizontally and stably conveyed below the blanking device at a constant speed, the tire base cloth does not need to be pressed into an asphalt coating material pool in the coating process, and the tire base cloth is not in a continuous pulling state, so that the conditions of large tension and serious contraction in the back-end process cannot occur.
Furthermore, the coating material transporting pipe penetrates through the coating outer pipe, the outlet of the coating material transporting pipe is communicated with the coating inner pipe, the bottom of the coating pipe is provided with a long-strip-shaped coating inner pipe blanking port and a conical coating outer pipe blanking port with an externally-expanded longitudinal section, and the coating outer pipe blanking port is arranged under the coating inner pipe blanking port.
Among this technical scheme, transport the material pipe through the coating and pass the coating outer tube and carry the coating inner tube with the pitch from the batching pond, coating inner tube blanking mouth is seted up to coating inner tube bottom, and coating outer tube blanking mouth is seted up to coating outer tube bottom, and coating outer tube blanking mouth locates under the coating inner tube blanking mouth, makes pitch can fall from coating inner tube blanking mouth, drops on the child base cloth of coating tube below horizontal transfer after passing coating outer tube blanking mouth, accomplishes pitch coating process. The design of the outward-expanding conical opening on the coating outer pipe is more than that of a common rectangular opening, so that asphalt has a larger falling space, the phenomenon that asphalt shakes and adheres to a coating outer pipe blanking port in the falling process due to the vibration of a machine and the like is avoided, and the phenomenon that the coating outer pipe blanking port is blocked due to the adhesion of the asphalt in long-time production is avoided.
Further preferably in this embodiment, the taper angle is 30 ° to 60 °. The outward-expanded conical angle is too small, so that the asphalt coating material falls off in a non-linear manner due to the vibration of a machine or unstable coating pressure and the like in the blanking process and is adhered to the conical side surface of the blanking port of the coating outer tube; meanwhile, the taper angle of the outward expansion cannot be too large, and as the heat conduction oil flows between the outer coating pipe and the outer wall of the inner coating pipe, the heat supply and heat preservation effects are achieved for the asphalt coating material in the inner coating pipe, and the heat supply and heat preservation effects are used for keeping the fluidity of asphalt, under the condition that the diameters of the inner coating pipe and the outer coating pipe and the opening size of the blanking opening of the inner coating pipe are fixed, if the outward expansion taper angle is too large, the heat supply of the heat conduction oil is possibly lacked around the blanking opening of the inner coating pipe, the viscosity of the asphalt around the blanking opening of the inner coating pipe is increased due to temperature reduction, and even solidification is caused, so that the problems that blanking is unstable or the outlet is blocked by the asphalt coating material are caused.
Further preferably, in the technical scheme, the width of the blanking port of the coating inner tube is 1-3 mm. According to the thickness requirement of the waterproof roll, the width of the blanking port of the coating inner tube can be controlled, so that the thickness of the asphalt coating material falling on the upper surface of the base fabric below is controlled. If the width of the blanking port of the coating inner tube is less than 1mm, the opening is easily blocked due to the characteristic of high viscosity of asphalt; if the width of the blanking port of the coating inner tube is larger than 3mm, the blanking process is unstable due to the too high dropping speed of the asphalt, so that the thickness of the asphalt layer is difficult to control. Preferably, the length of the blanking port of the outer coating tube is 1-1.5m, the length of the blanking port of the inner coating tube is 0.8-1.2m, the length of the blanking port of the inner coating tube is smaller than the length of the blanking port of the outer coating tube, and the blanking port of the inner coating tube is located in the middle of the blanking port of the outer coating tube. The coating inner tube blanking port is arranged in the middle of the opening range of the coating outer tube blanking port, so that the asphalt blanking is smooth and not blocked, and the pollution and the opening blockage are avoided.
Preferably, a baffle is arranged between the coating inner tube and the coating outer tube, the space between the coating inner tube and the coating outer tube is divided into two cavities by the baffle, an oil inlet of the oil conveying tube and an oil outlet of the oil conveying tube are arranged on the two cavities at the same end of the coating outer tube, and an oil through port for heat conduction oil to pass through is formed in the tail end of one end, far away from the oil inlet of the oil conveying tube, of the baffle.
In the technical scheme, a baffle penetrating through the longitudinal direction of the coating tube is arranged between the coating inner tube and the coating outer tube, the space between the coating inner tube and the coating outer tube is divided into two cavities, the oil inlet and the oil outlet of heat transfer oil are arranged on different cavities at the same end of the coating outer tube, and the end of one end, far away from the oil inlet and the oil outlet, of the baffle is provided with an oil through port through which the heat transfer oil can pass, so that the heat transfer oil flows along a U-shaped path from the two cavities between the coating inner tube and the coating outer tube. The heat transfer oil can be supplied to the asphalt coating material in the coating inner pipe by passing in and out at the same end, and meanwhile, the oil conveying pipe is reduced, the installation space is saved, and the structure of the coating system is more compact and reasonable.
Preferably, the coating material conveying pipes are provided with two groups, each group comprises a first coating material conveying pipe and a second coating material conveying pipe, the two groups of coating pipes comprise a first coating pipe and a second coating pipe, an oil outlet of an oil conveying pipe on the first coating pipe is communicated with an oil inlet of an oil conveying pipe on the second coating pipe through the oil conveying pipe, the second coating pipe is arranged behind the first coating pipe, the first coating pipe is arranged above the feeding roller, and the second coating pipe is arranged above the flash hopper.
In the technical scheme, the coating system formed by the first coating conveying pipe and the first coating pipe can be used for primary coating, the coating system formed by the second coating conveying pipe and the second coating pipe can be used for secondary coating, the primary coating and the secondary coating share the heat conduction oil system, only the oil outlet of the oil conveying pipe on the first coating pipe is communicated with the oil inlet of the oil conveying pipe on the second coating pipe through the oil conveying pipe, the use of the oil conveying pipe is further reduced, and the installation space is saved.
Preferably, the surface of the feeding roller is a frosted surface. Because the material loading roller is in rolling contact with the tire base cloth, the position of the tire base cloth contacted with the material loading roller is only the highest tangent line of the rolling upper surface, in order to ensure a certain coating effect, the surface of the material loading roller is processed into a frosted surface, so that the friction force can be increased, and the coating rate and the uniformity of asphalt are increased.
This technical scheme is further preferred, the diameter of material loading roller is between 600 ~ 800mm, and the diameter of material loading roller is big more, and the area of contact with child base cloth is just big more, for guaranteeing better coating effect, establishes the diameter of material loading roller between 600 ~ 800 mm. The longitudinal section of the material pool is triangular. Waterproofing membrane production line stops work, needs in time with the pitch clean up in the pond, this structure makes things convenient for pitch to flow out, does not keep the dead angle.
Further, the longitudinal section of the overflow hopper is asymmetrical inverted trapezoid, the overflow hopper is installed above the overflow material conveying pipe, the lower surface of the overflow hopper is provided with an asphalt inlet, the upper end of the overflow material conveying pipe is provided with an overflow outlet of the overflow material conveying pipe, and the overflow outlet of the overflow material conveying pipe is arranged in the asphalt inlet.
In the technical scheme, the longitudinal section of the overflow hopper is designed to be an inverted trapezoid, the upper surface of the overflow hopper is wide, the lower surface of the overflow hopper is narrow, the overflow hopper belongs to an asymmetric inverted trapezoid, the two waist lengths are different, and the overflow hopper is provided with a short waist and a long waist. If the longitudinal section of the hopper is designed to be symmetrical trapezoid and the lengths of the two sides are the same, if the depth of the hopper is controlled to be shallow, the opening on the upper surface of the hopper is very large, and a large installation space is occupied; if the opening on the upper surface of the hopper is made small, the hopper is very deep, a large amount of asphalt coating materials are stored in the hopper, raw materials are wasted, and the production cost is increased. Among this technical scheme, asymmetric inverted trapezoid design can make the upper surface opening size and the hopper degree of depth of overflow hopper all adjust suitable scope, the upper surface opening is great, the hopper is lighter simultaneously, obtain the flash mechanism of a miniaturized design, remaining pitch material is few in the overflow hopper, even restart after shutting down, remaining a small amount of pitch in the hopper also can melt very fast, consequently overflow hopper fixed mounting, needn't overturn, practiced thrift when reaching the base fabric lower surface coating and covered the equipment fixing and used shared space.
Furthermore, the flash fill includes first lateral wall and has the second lateral wall of certain inclination towards pitch waterproofing membrane direction of transfer, second lateral wall longitudinal section length exceedes 2 times first lateral wall longitudinal section length, flash fill upper surface opening is the level form.
Among this technical scheme, the first lateral wall of excessive hopper is asymmetric inverted trapezoid's short waist promptly, and the second lateral wall that has certain inclination towards pitch waterproofing membrane direction of transfer is long waist promptly, and first lateral wall can be vertical board, makes asymmetric inverted trapezoid become the right trapezoid of inversion, and first lateral wall also does have certain inclination towards the opposite direction of pitch waterproofing membrane conveying, makes asymmetric inverted trapezoid become non-right trapezoid, specifically can carry out the reasonable selection according to equipment fixing space. The length of the longitudinal section of the second side wall is greater than that of the longitudinal section of the first side wall, and meanwhile, the opening in the upper surface of the flash hopper is horizontal, so that the opening in the upper surface of the flash hopper in the technical scheme is horizontal to the base fabric of the tire above, asphalt is uniformly distributed on the base fabric of the tire, and the prepared waterproof coiled material has a better effect. The length of the longitudinal section of the second side wall exceeds 2 times of that of the first side wall, so that the opening of the overflow hopper is larger, and the coating is more favorably carried out.
Further preferably, the second sidewall of the overflow hopper has an inclination angle of 60-80 °. The inclination angle of the second side wall is larger than 60 degrees, the opening of the upper surface of the overflow hopper can be ensured to be large, coating is facilitated, the inclination angle cannot exceed 80 degrees, otherwise, the longitudinal section of the overflow hopper is too flat, the opening of the upper surface of the overflow hopper is too large, too large installation space is occupied, meanwhile, the storage of asphalt materials in the overflow hopper is too small, and the condition of uneven coating is likely to occur. First side wall top is established and is used for increasing the first board of heightening, second side wall top is established and is used for increasing the second of heightening and increases the board, first board and the second of heightening are vertical baffle. The vertically arranged first heightening plate and the vertically arranged second heightening plate are used for improving the height of the upper surface of the overflowing hopper and preventing asphalt coating materials from overflowing from the upper surface. The width of the overflow port of the overflow material conveying pipe is 1-3mm, the width of the asphalt inlet is 2-4mm, the width of the overflow port of the overflow material conveying pipe is smaller than the width of the asphalt inlet, and the overflow port of the overflow material conveying pipe is positioned in the middle of the asphalt inlet. The length of the overflow port of the overflow material conveying pipe is 0.8-1.2m, the length of the asphalt inlet is 1-1.5m, the length of the overflow port of the overflow material conveying pipe is smaller than the length of the asphalt inlet, and the overflow port of the overflow material conveying pipe is positioned in the middle of the asphalt inlet. The longitudinal section of the flash material conveying pipe is rectangular or square. Because the lower surface of the flash hopper is horizontal, the flash conveying pipe is designed into a rectangle or square shape and has a horizontal upper surface, so that the joint part of the flash conveying pipe and the flash hopper can be more tightly matched, and material leakage is prevented.
Furthermore, the flash material conveying pipe is of a double-layer jacket structure comprising a conveying inner layer and a heat insulation layer, the heat insulation layer is provided with a heat conduction oil inlet and a heat conduction oil outlet, and asphalt flowability in the flash material mechanism is kept by leading heat conduction oil into the heat insulation layer. The heat conducting oil with a certain temperature flows in the heat preservation layer, can provide heat for the asphalt coating material in the material conveying inner layer, keeps the proper temperature and good fluidity of the asphalt, and enables the asphalt layer coated on the tire base cloth to be more uniform.
Furthermore, a closable discharge opening is formed at the bottom of the flash conveying pipe, and the discharge opening is connected to the conveying inner layer.
In the technical scheme, the discharge hole at the bottom of the flash material conveying pipe is in a closed state in the coating process, and the asphalt materials in the flash hopper and the coating inner layer can be discharged and recycled by opening the discharge hole after the coating is finished, so that almost no asphalt is remained in the flash mechanism. The design that the bin outlet can be closed at the bottom makes the flash hopper of this technical scheme need not to overturn the row material after accomplishing the coating, consequently can practice thrift and scribble the space that the equipment installation and use occupy of covering.
The device further comprises a coating incoming pipe for supplying asphalt and a flash incoming pipe, wherein the coating incoming pipe is connected with a coating conveying pipe, and a coating flow control valve for controlling the flow of the asphalt entering the coating pipe is arranged on the coating conveying pipe; the flash feeding pipe is connected with the flash conveying pipe, and the flash conveying pipe is provided with a flash flow control valve for controlling the flow of the asphalt entering the flash mechanism. The flow control device is used for controlling the asphalt content in the coating pipe and the overflow hopper, so that asphalt waterproof coiled materials with different thicknesses can be processed.
Compared with the prior art, the invention has the beneficial effects that: the asphalt coating feeding equipment for the waterproof coiled material does not have the conditions of large tension of the base fabric and serious shrinkage in the later process, and can control the thickness of the asphalt layers on the upper surface and the lower surface of the base fabric, thereby being convenient for manufacturing the waterproof coiled materials with different thicknesses.
Drawings
Fig. 1 is a schematic structural view of asphalt coating and feeding equipment for a waterproof roll according to this embodiment.
Fig. 2 is a schematic perspective view of the coating tube of this embodiment.
Fig. 3 is a front view of the coating tube of the present embodiment.
Fig. 4 is a left side view of the coating tube of the present embodiment.
Fig. 5 is a plan view of the coating tube of this embodiment.
Fig. 6 is a bottom view of the coating pipe of the present embodiment.
Fig. 7 is a schematic structural view of the feeding roller and the material tank in the embodiment.
Fig. 8 is a schematic perspective view of the flash mechanism of this embodiment.
Fig. 9 is a schematic perspective view of the combination of the overflow hopper and the insulating layer according to the embodiment.
Fig. 10 is a schematic perspective view of the material conveying inner tube of this embodiment.
Fig. 11 is a top view of the flash mechanism of this embodiment.
Fig. 12 is a bottom view of the flash mechanism of this embodiment.
The figure includes: a material tank 111; a feeding roller 121; coating the tube 300; a first coating tube 310; a second coating tube 320; a first coating inner tube 311, a second coating inner tube 321; a first coated outer tube 312; a second coated outer tube 322; a first coating inner tube blanking port 3111 and a second coating inner tube blanking port 3211; a first coating outer tube blanking port 3121; a second coating outer tube drop port 3221; an overflow hopper 400; an overflow hopper lower surface 401; an asphalt inlet 402; a hopper upper surface 403; a first sidewall 404; a first heightening plate 405; a second sidewall 406; a second heightening plate 407; an oil carrying pipe 500; a first oil inlet 501; a first oil outlet 502; a second oil inlet 503; a second oil outlet 504; a first coating conveying pipe 610; a second coating transfer pipe 620; a flash transfer pipe 630; a pipe overflow 631; a material handling inner layer 632; an insulating layer 633; a discharge opening 634.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Examples
As shown in fig. 1, the asphalt coating feeding apparatus for a waterproof coiled material according to this embodiment includes a blanking device for coating from above to the upper surface of the coiled material and a feeding device for coating from below to the lower surface of the coiled material, where the blanking device includes two groups of coating tubes 300 having a double-layer jacket structure and composed of a coating inner tube and a coating outer tube, a coating material conveying tube for supplying material to the coating tubes 300, and an oil conveying tube for conveying heat transfer oil to the coating outer tube; the bottom of the coating tube is provided with a blanking port penetrating through the coating inner tube and the coating outer tube; the feeding device comprises a material pool 111 for containing asphalt and a feeding roller 121 which is arranged in the material pool 111, is partially immersed in the asphalt and is used for coating the asphalt on the lower surface of the base fabric by rotating; the feeding device also comprises a flash hopper 400 which is coated by utilizing an opening on the upper surface, and a flash conveying pipe which is connected to the lower part of the flash hopper 400 and supplies the flash hopper 400; the blanking device is arranged above the feeding device, two ends of the base fabric entering and leaving the feeding device are specified as the front and the rear, and the flash mechanism is arranged behind the feeding roller. The asphalt coating and feeding equipment for the waterproof coiled material further comprises a coating incoming pipe for supplying asphalt and a flash incoming pipe, wherein the coating incoming pipe is connected with a coating conveying pipe, and a coating flow control valve for controlling the flow of the asphalt entering the coating pipe is arranged on the coating conveying pipe; the flash material feeding pipe is connected with the flash material conveying pipe, and the flash material conveying pipe is provided with a flash material flow control valve for controlling the flow of the asphalt entering the flash mechanism. The flow control device is used for controlling the asphalt content in the coating pipe and the overflow hopper, so that asphalt waterproof coiled materials with different thicknesses can be processed. The oil conveying pipe is also provided with a valve for controlling the flow of the heat-conducting oil.
As shown in fig. 2 to 6, in the blanking device of this embodiment, two sets of coating conveying pipes are provided, including a first coating conveying pipe 610 and a second coating conveying pipe 620, and two sets of coating pipes are provided, including a first coating pipe 310 and a second coating pipe 320, where a first oil outlet 502 of an oil conveying pipe 500 on the first coating pipe 310 is communicated with a second oil inlet 503 of the oil conveying pipe 500 on the second coating pipe 320 through another oil conveying pipe. In the production process of the asphalt waterproof coiled material, the waterproof coiled material with the thickness and the surface flatness meeting the standard can not be produced through one-time coating and pressing, generally, at least one-time coating, rough pressing, secondary coating and fine pressing are required, the coating device formed by the first coating conveying pipe 610 and the first coating pipe 310 in the embodiment can be used for one-time coating, the coating device formed by the second coating conveying pipe 620 and the second coating pipe 320 can be used for secondary coating, and the one-time coating and the secondary coating share a heat-conducting oil system, only the first oil outlet 502 on the first coating pipe 310 and the second oil inlet 503 on the second coating pipe 320 are communicated through the section of oil conveying pipe 500, so that the use of the oil conveying pipe 500 is further reduced, and the installation space is saved.
The first coating pipe 310 is a double-layer jacket structure comprising a first coating inner pipe 311 for asphalt material flowing and a first coating outer pipe 312 for heat conduction oil flowing, the first coating conveying pipe 610 penetrates through the first coating outer pipe 312, the outlet of the first coating conveying pipe 610 is communicated with the first coating inner pipe 311, the bottom of the first coating pipe 310 is provided with a first coating inner pipe blanking port 3111 and a first coating outer pipe blanking port 3121, and the first coating outer pipe blanking port 3121 is arranged under the first coating inner pipe blanking port 3111. The longitudinal section of the first coating outer tube blanking port 3121 is a tapered shape expanding outward. The design of flaring toper opening outward than ordinary rectangle opening, can make pitch have bigger space that drops, can not lead to pitch to produce the shake and the adhesion on first coating outer tube blanking mouth 3121 at the in-process that drops because of reasons such as machine vibrations, avoided in the long-time production first coating outer tube blanking mouth 3121 to pile up the condition of jam because of the pitch adhesion.
A baffle penetrating through the longitudinal direction of the first coating tube 310 is arranged between the first coating inner tube 311 and the first coating outer tube 312, the space between the first coating inner tube 311 and the first coating outer tube 312 is divided into two cavities, the first oil inlet 501 and the first oil outlet 502 of heat conduction oil are arranged on different cavities at the same end of the first coating outer tube 312, and the end of the baffle far away from the first oil inlet 501 and the first oil outlet 502 is provided with an oil through port through which the heat conduction oil can pass, so that the heat conduction oil flows in a U-shaped path from the two cavities between the first coating inner tube 311 and the first coating outer tube 312. The heat transfer oil can be supplied to the asphalt in the first coating inner pipe 311 through the same-end inlet and outlet of the heat transfer oil, and meanwhile, the use of oil conveying pipes is reduced, the installation space is saved, and the structure of the coating system is more compact and reasonable.
In this embodiment, the taper angle of the longitudinal section of the blanking port 3121 of the first coating outer tube is selected to be 30 °. The outward-expanding conical angle is too small, so that pitch easily falls off in a non-linear manner due to machine shaking or unstable coating pressure and the like in the blanking process and is adhered to the conical side surface of the blanking port 3121 of the first coating outer pipe; meanwhile, the taper angle of the outward expansion cannot be too large, and since heat conduction oil flows between the outer wall of the first coating outer pipe 312 and the outer wall of the first coating inner pipe 311, heat supply and heat preservation effects are achieved for the asphalt in the first coating inner pipe 311, and fluidity of the asphalt is maintained, under the condition that the diameters of the first coating inner pipe 311 and the first coating outer pipe 312 are fixed and the opening size of the first coating inner pipe blanking port 3111 is fixed, if the taper angle of the outward expansion is too large, heat conduction oil is possibly lacked around the first coating inner pipe blanking port 3111 for supplying heat, so that the viscosity of the asphalt around the first coating inner pipe blanking port 3111 is increased due to temperature reduction, and even solidification is caused, and therefore the problems that blanking is unstable or the asphalt partially blocks the outlet are caused.
The width of the first coating inner tube blanking port 3111 is 1.5 mm. According to the thickness requirement of the waterproof roll, the width of the blanking port 3111 of the first coating inner tube can be controlled to control the thickness of the asphalt falling on the upper surface of the base fabric of the lower tire. If the width of the first coating inner tube blanking port 3111 is less than 1mm, the opening is easily blocked due to the characteristic of high viscosity of the asphalt itself; if the width of the blanking port 3111 of the first coating inner tube is larger than 3mm, the asphalt layer is liable to fall at an excessively high speed, which makes the blanking process unstable and makes it difficult to control the thickness of the asphalt layer.
The length of the outer tube blanking opening of the first coating tube 310 is 1.5m, the length of the inner tube blanking opening 3111 of the first coating tube is 1.2m, the length of the inner tube blanking opening 3111 of the first coating tube is less than the length of the outer tube blanking opening 3121 of the first coating tube, and the inner tube blanking opening 3111 of the first coating tube is located in the middle of the outer tube blanking opening 3121 of the first coating tube. With first coating inner tube blanking mouth 3111 setting in the middle position of first coating outer tube blanking mouth 3121 opening range, can make the pitch blanking smooth not receive the hindrance, avoid polluting and block up the opening.
The first coating transporting pipe 610 has the same diameter as the first coating inner pipe 311. Since the outlet end of the first coating transporting pipe 610 is communicated with the first coating inner pipe 311, the flowing state of the asphalt is most stable when the diameters of the two circular pipes are the same. If the diameter of the first coating transporting pipe 610 is smaller than the diameter of the first coating inner pipe 311, a large amount of bubbles are generated when the asphalt enters the first coating inner pipe 311; if the diameter of the first coating conveying pipe 610 is larger than that of the first coating inner pipe 311, the flow of asphalt at the joint of the two circular pipes is blocked to a certain extent, which is not beneficial to producing high-quality asphalt waterproof coiled materials.
The first coating material conveying pipe 610 is provided with a fillet at the bending position, and the size of the fillet is 80 degrees. The first coating material conveying pipe 610 is changed into a vertical pipe from a horizontal pipe after bending, and a fillet of 70-90 degrees is designed at the middle bending part, so that the conveying of asphalt is smoother and more stable.
The second coating pipe 320 has the same structure as the first coating pipe 310, and the second coating pipe 320 has a double-layered jacket structure including a second coating inner pipe 321 for asphalt to flow and a second coating outer pipe 322 for heat transfer oil to flow. The taper angle of the longitudinal section of the second coating outer tube blanking port 3221 is 30 °, the width of the second coating inner tube blanking port 3211 is 2.5mm, the length of the second coating outer tube blanking port 3221 is 1.5m, and the length of the second coating inner tube blanking port 3211 is 1.2 m. The length of the second coating inner tube blanking port 3211 is less than the length of the second coating outer tube blanking port 3221, and the second coating inner tube blanking port 3211 is located in the middle of the second coating outer tube blanking port 3221. The second coating conveying pipe 620 has the same diameter as the second coating inner pipe 321. The second coating material conveying pipe 620 is provided with a fillet at the bending position, and the size of the fillet is 80 degrees.
As shown in fig. 7, the feeding roller 121 and the material tank 111 of the present embodiment are provided, and the surface of the feeding roller 121 is a frosted surface. Because the feeding roller 121 is in rolling contact with the tire base cloth, the position of the feeding roller 121 in contact with the tire base cloth is only the highest tangent line of the rolling upper surface, in order to ensure a certain coating effect, the surface of the feeding roller 121 is processed into a frosted surface, so that the friction force can be increased, and the coating rate and uniformity of asphalt are increased.
Further preferably, the diameter of the feeding roller 121 is 800mm, the larger the diameter of the feeding roller 121 is, the larger the contact area with the tire base fabric is, and in order to ensure a good coating effect, the diameter of the feeding roller 121 is set between 600 mm and 800 mm. The longitudinal cross-sectional shape of the material tank 111 is triangular. When waterproofing membrane production line stopped working, need in time with the pitch clean up in the material pond 111, this structure makes things convenient for pitch to flow out, does not keep the dead angle.
As shown in fig. 8 to 12, the flash mechanism of the present embodiment includes a flash conveying pipe 630 for feeding and a flash hopper 400 for coating, the flash hopper 400 has an asymmetric inverted trapezoid longitudinal section, the flash hopper 400 is installed above the flash conveying pipe 630, the lower surface 401 of the flash hopper is provided with an asphalt inlet 402, the upper end of the flash conveying pipe 630 is provided with a flash outlet 631, and the flash outlet 631 is disposed in the asphalt inlet 402. The asymmetric inverted trapezoid design in the embodiment can enable the opening size of the upper surface of the overflow hopper 400 and the depth of the hopper to be adjusted to a proper range, the opening size of the upper surface is large, meanwhile, the hopper is shallow, the overflow mechanism with a miniaturized design is obtained, residual asphalt materials in the overflow hopper 400 are few, even if the overflow hopper is restarted after shutdown, a small amount of residual asphalt in the hopper can be quickly dissolved, therefore, the overflow hopper 400 is fixedly installed and does not need to be turned over, and the occupied space of installation and use of the coating equipment can be saved while the lower surface of the tire base cloth is coated.
In this embodiment, the overflow hopper 400 includes a first sidewall 404 and a second sidewall 406 having a certain inclination toward the conveying direction of the asphalt waterproof roll, the longitudinal section length of the second sidewall 406 is greater than that of the first sidewall 404, the opening of the upper surface 403 of the overflow hopper is horizontal and horizontal with the base fabric conveyed above, the asphalt is uniformly distributed on the base fabric, and the obtained waterproof roll has a better effect. In this embodiment, the longitudinal cross-sectional length of the second sidewall 406 is 3 times the longitudinal cross-sectional length of the first sidewall 404, and the angle of inclination of the second sidewall 406 of the bucket 400 is selected to be 60 °. A first heightening plate 405 for heightening is arranged above the first side wall 404, a second heightening plate 407 for heightening is arranged above the second side wall 406, and the first heightening plate 405 and the second heightening plate 407 are vertical baffles. The width of carrier pipe overflow 631 is 2mm, the width of asphalt inlet 402 is 3mm, the width of carrier pipe overflow 631 is less than the width of asphalt inlet 402, and carrier pipe overflow 631 is located in the middle of asphalt inlet 402. The length of the material conveying pipe overflow port 631 is 1m, the length of the asphalt inlet 402 is 1.2m, the length of the material conveying pipe overflow port 631 is smaller than the length of the asphalt inlet 402, and the material conveying pipe overflow port 631 is located in the middle of the asphalt inlet 402. In this embodiment, the longitudinal section of the flash material conveying pipe 630 is square, and has a horizontal upper surface, so that the joint of the flash material conveying pipe 630 and the flash hopper 400 can be more tightly matched to prevent material leakage.
The flash material conveying pipe 630 is a double-layer jacket structure comprising a conveying inner layer 632 and a heat insulation layer 633, the heat insulation layer 633 is provided with a heat conduction oil inlet and a heat conduction oil outlet, and asphalt fluidity in the flash material conveying mechanism is kept by leading heat conduction oil into the heat insulation layer 633. Heat conduction oil with a certain temperature flows in the heat insulation layer 633, can provide heat for asphalt in the material conveying inner layer 632, keeps the proper temperature and good fluidity of the asphalt, and enables the asphalt layer coated on the tire base cloth to be more uniform. The bottom of the flash material conveying pipe 630 is provided with a closable discharge opening 634, and the discharge opening 634 is connected to the inner material conveying layer 632, so that the flash hopper 400 of the embodiment does not need to be turned over for discharging after coating is completed, and the occupied space for installing and using the coating equipment can be saved.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (10)
1. A waterproof coiled material asphalt coating feeding device comprises a blanking device for coating from the upper part to the upper surface of a coiled material and a feeding device for coating from the lower part to the lower surface of the coiled material, and is characterized in that the blanking device comprises a coating pipe, a coating conveying pipe and an oil conveying pipe, wherein the coating pipe is composed of a coating inner pipe and a coating outer pipe and has a double-layer jacket structure;
the bottom of the coating pipe is provided with a blanking port penetrating through the coating inner pipe and the coating outer pipe;
the feeding device comprises a material pool for containing asphalt and a feeding roller which is arranged in the material pool, is partially immersed in the asphalt and is used for coating the asphalt on the lower surface of the base fabric by rotating;
the feeding device also comprises a flash mechanism consisting of a flash hopper for coating by utilizing an opening on the upper surface and a flash conveying pipe which is connected to the lower part of the flash hopper and supplies materials to the flash hopper;
the blanking device is arranged above the feeding device, two ends of the base fabric entering and leaving the feeding device are defined as the front and the rear, and the flash mechanism is arranged behind the feeding roller;
valves for controlling flow are arranged on the coating material conveying pipe, the oil conveying pipe and the flash material conveying pipe;
the overflow hopper is used for further coating asphalt on the lower surface of the base fabric horizontally conveyed above, the overflow conveying pipe is used for continuously conveying the asphalt into the overflow hopper, and the asphalt overflows from an upper surface opening of the overflow hopper and adheres to the lower surface of the base fabric.
2. The asphalt coating and feeding equipment for the waterproof coiled material according to claim 1, wherein the coating material conveying pipe penetrates through the coating outer pipe, the outlet of the coating material conveying pipe is communicated with the coating inner pipe, the bottom of the coating pipe is provided with a long-strip-shaped coating inner pipe blanking port and a conical coating outer pipe blanking port with an outward-expanded longitudinal section, and the coating outer pipe blanking port is arranged under the coating inner pipe blanking port.
3. The asphalt coating and feeding equipment for the waterproof coiled material according to claim 1, wherein a baffle is arranged between the inner coating pipe and the outer coating pipe, the space between the inner coating pipe and the outer coating pipe is divided into two cavities by the baffle, the oil inlet and the oil outlet of the oil conveying pipe are arranged on the two cavities at the same end of the outer coating pipe, and the end of one end of the baffle, which is far away from the oil inlet, is provided with an oil through port through which heat transfer oil can pass.
4. The asphalt coating and feeding equipment for the waterproof coiled material according to claim 3, wherein the two groups of coating conveying pipes are arranged and comprise a first coating conveying pipe and a second coating conveying pipe, the two groups of coating pipes comprise a first coating pipe and a second coating pipe, an oil outlet of the oil conveying pipe on the first coating pipe is communicated with an oil inlet of the oil conveying pipe on the second coating pipe through the oil conveying pipe, the second coating pipe is arranged behind the first coating pipe, the first coating pipe is arranged above the feeding roller, and the second coating pipe is arranged above the overflowing hopper.
5. The asphalt coating feeding equipment for waterproof rolls according to any one of claims 1 to 4, wherein the surface of the feeding roller is a frosted surface.
6. The asphalt coating and feeding equipment for waterproof coiled materials according to any one of claims 1 to 4, wherein the longitudinal section of the overflow hopper is asymmetrical inverted trapezoid, the overflow hopper is installed above the overflow pipe, the lower surface of the overflow hopper is provided with an asphalt inlet, the upper end of the overflow pipe is provided with an overflow outlet of the overflow pipe, and the overflow outlet of the overflow pipe is arranged in the asphalt inlet.
7. The asphalt coating and feeding equipment for waterproof rolls as claimed in claim 6, wherein the overflow hopper comprises a first side wall and a second side wall inclined toward the conveying direction of the asphalt waterproof rolls, the longitudinal section length of the second side wall exceeds 2 times of that of the first side wall, and the upper surface of the overflow hopper is opened horizontally.
8. The asphalt coating feeding device for the waterproof coiled material according to any one of claims 1 to 4, wherein the flash conveying pipe is of a double-layer jacket structure comprising an inner conveying layer and an insulating layer, the insulating layer is provided with a heat transfer oil inlet and an outlet, and asphalt fluidity in the flash mechanism is maintained by introducing heat transfer oil into the insulating layer.
9. The asphalt coating and feeding device for waterproof coiled materials as claimed in claim 8, wherein a closable discharge opening is arranged at the bottom of the flash material conveying pipe, and the discharge opening is connected to the inner layer of the flash material conveying pipe.
10. The asphalt coating and feeding equipment for the waterproof coiled material as claimed in claim 1, further comprising a coating incoming pipe for supplying asphalt and a flash incoming pipe, wherein the coating incoming pipe is connected with a coating conveying pipe, and a coating flow control valve for controlling the flow of the asphalt entering the coating pipe is arranged on the coating conveying pipe; the flash feeding pipe is connected with the flash conveying pipe, and the flash conveying pipe is provided with a flash flow control valve for controlling the flow of the asphalt entering the flash mechanism.
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| CN202010569600.5A CN111822267B (en) | 2020-06-20 | 2020-06-20 | Waterproofing membrane pitch coating charging equipment |
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| CN202010569600.5A CN111822267B (en) | 2020-06-20 | 2020-06-20 | Waterproofing membrane pitch coating charging equipment |
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| CN111822267B true CN111822267B (en) | 2021-09-07 |
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| EP0657227A1 (en) * | 1993-09-28 | 1995-06-14 | ZIBULLA & SOHN GMBH Raziol-Schmierungstechnik | Device for greasing strip or plate-like workpieces |
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| CN106400525A (en) * | 2016-10-25 | 2017-02-15 | 百耐尔河北建材科技有限公司 | Tire asphalt waterproof roll production line |
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| CN111054578A (en) * | 2019-12-26 | 2020-04-24 | 重庆科顺新材料科技有限公司 | Double-pressure type waterproof coiled material coating device |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0657227A1 (en) * | 1993-09-28 | 1995-06-14 | ZIBULLA & SOHN GMBH Raziol-Schmierungstechnik | Device for greasing strip or plate-like workpieces |
| CN202672003U (en) * | 2012-07-05 | 2013-01-16 | 福建南方路面机械有限公司 | Asphalt heat preservation connecting pipe |
| CN205270040U (en) * | 2016-01-12 | 2016-06-01 | 北京远大洪雨防水材料有限责任公司 | Oil coating device |
| CN106400525A (en) * | 2016-10-25 | 2017-02-15 | 百耐尔河北建材科技有限公司 | Tire asphalt waterproof roll production line |
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