CN214421499U

CN214421499U - Prevent conveyer belt of electrostatic interaction adhesion

Info

Publication number: CN214421499U
Application number: CN202022695230.8U
Authority: CN
Inventors: 唐建勇
Original assignee: Zhejiang Sanwei Rubber Item Co ltd
Current assignee: Sanwei Holding Group Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-10-19
Anticipated expiration: 2030-11-19

Abstract

The utility model relates to a conveyer belt technical field for reduce the adsorption phenomenon that the conveyer belt electrostatic action arouses in the cement powder is carried, disclose a prevent conveyer belt of electrostatic action adhesion, including core layer cloth, electrically conductive soft silk screen, the upper cover glue film of making by the rubber that contains the antistatic agent, cover glue film, limit glue film down, wherein cover the upper surface of glue film laminating core layer cloth, cover the lower surface of glue film laminating core layer cloth down, the both sides face of limit glue film laminating core layer cloth, electrically conductive soft silk screen is including the last electrically conductive soft silk screen and the lower electrically conductive soft silk screen of locating core layer cloth both sides, goes up electrically conductive soft silk screen in the cover glue film on the calendering embedding, electrically conductive soft silk screen is in the cover glue film under the calendering embedding down. The utility model discloses a conveyer belt can prevent the production in a large number of surface static to prevent the inside static of conveyer belt and to the surface transmission, in time disperse static simultaneously, avoid local static accumulation, moreover lasting antistatic.

Description

Prevent conveyer belt of electrostatic interaction adhesion

Technical Field

The utility model relates to a conveyer belt technical field, concretely relates to prevent conveyer belt of electrostatic interaction adhesion.

Background

The cement manufacturing industry needs a line for conveying cement powder by using a conveying belt. When the cement powder is produced, large blocks of clinker are ground into powdery cement powder, and the powdery cement powder is easy to agglomerate to generate agglomeration in the grinding process, so that grinding aid is added in the grinding process, and the cement powder added with the grinding aid is added in the grinding processThe conveyer belt transportation in-process is easy to attract with the static charge that produces when the conveyer belt rotates mutually, when unloading, and a lot of cement powder adsorb the conveyer belt surface along with the belt rotates always to constantly drop from the conveyer belt surface, lead to producing very serious raise dust phenomenon. At the same time, the required dust concentration in the closed space<10mg/m³In such a closed space, the collision of rollers during belt travel can produce sparks, which is also a hidden hazard. Therefore, it is necessary to eliminate static electricity from the conveyor belt to prevent adhesion of cement powder, thereby suppressing generation of dust.

Chinese patent CN 201921673279.4's utility model patent application "a resistant cutting type conveyer belt", this conveyer belt basic unit is PU baseband, is fixed with fire-retardant coating at PU baseband's inside wall, is fixed with at fire-retardant coating's inside wall and prevents the static coating, is fixed with elastic rubber layer at PU baseband's lateral wall, is fixed with corrosion-resistant coating at elastic rubber layer's lateral wall, and corrosion-resistant coating's lateral wall is fixed with wear-resistant coating. The conveyer belt has an anti-static effect through the arrangement of the anti-static coating. However, the anti-static coating of the conveyer belt is positioned inside the conveyer belt, so that a good anti-static effect cannot be achieved, and particularly, charges on other coatings cannot be effectively dispersed.

SUMMERY OF THE UTILITY MODEL

For the adsorption phenomenon that reduces in the cement powder and carry because the conveyer belt electrostatic action arouses, the utility model aims to provide a prevent the conveyer belt of electrostatic action adhesion, reduce or even eliminate the static charge on the conveyer belt, avoid the gathering of static to improve the absorption of cement powder, reduce the dust, improve the production security.

The utility model provides a following technical scheme:

the utility model provides a prevent conveyer belt of electrostatic action adhesion, includes core layer cloth, the conveyer belt still includes the upper cover glue film, lower cover glue film, the limit glue film of making by the rubber that contains the antistatic agent, wherein the upper surface of upper cover glue film laminating core layer cloth, the lower surface of lower cover glue film laminating core layer cloth, the both sides face of limit glue film laminating core layer cloth.

The utility model discloses an among the conveyer belt, upper cover glue film, lower cover glue film and the limit glue film that can play antistatic action are set up to upper surface, lower surface and the side of sandwich layer cloth, eliminate the production of a large amount of static on conveyer belt surface to prevent the inside static of conveyer belt to transmit to the surface. Meanwhile, the upper covering rubber layer, the lower covering rubber layer and the edge rubber layer are all made of rubber containing antistatic agents, so that the lasting antistatic property of the conveying belt can be maintained, the antistatic property is uniformly distributed, and the static accumulation of partial areas is avoided.

As the utility model discloses a preferred, the conveyer belt still includes electrically conductive soft silk screen, and electrically conductive soft silk screen is including the last electrically conductive soft silk screen and the lower electrically conductive soft silk screen of locating sandwich layer cloth both sides, go up electrically conductive soft silk screen and cover in the gum layer on the calendering embedding, electrically conductive soft silk screen covers in the gum layer under the calendering embedding down. The conductive soft silk screen can disperse static charges generated in the upper covering glue layer and the lower covering glue layer outwards in time, so that local accumulation of static is avoided, and the antistatic performance of the upper covering glue layer and the lower covering glue layer is enhanced.

As the utility model discloses a preferred, electrically conductive soft silk screen is woven by footpath guide silk thread and latitudinal direction guide silk thread and is formed, footpath guide silk thread, latitudinal direction guide silk thread are 20 ~ 30 ℃ with the width direction's of core layer cloth acute angle contained angle. The design of the acute included angle of 20-30 ℃ can reduce the wrinkles and the warps of the upper conductive soft silk screen and the lower conductive soft silk screen in the conveying process of the conveying belt, and the firmness and the durability of the conductive soft silk screens are enhanced.

As the optimization of the utility model, the conductive soft silk screen is made by drying the glass fiber net after being dipped in the glue solution containing the antistatic agent. The preparation cost of the conductive soft silk screen prepared by directly dipping the antistatic glue solution into the glass fiber net is low.

As the utility model discloses a preferred, electrically conductive soft silk screen is woven by the copper wire and is formed. High static electricity dispersing effect and high durability.

As the utility model discloses a preferred, the conveyer belt still includes the soft conducting wire that extends along the width direction of conveyer belt, soft conducting wire passes the upper surface and the lower surface of conveyer belt in turn, just the crossing department of soft conducting wire overlap joint footpath guide wire line and latitudinal direction guide wire line. Utilize soft conductive wire to pass in turn on the conveyer belt, make and go up conductive soft silk screen and conductive soft silk screen electricity intercommunication down, and then the intercommunication coats the glue film, covers the glue film down, in time shifts the static charge of upper surface or lower surface to another surface, promotes static dispersion performance, strengthens antistatic effect.

As the utility model discloses a preferred, the upper surface and the lower surface of core layer cloth still laminate respectively on prevent static film layer, prevent static film layer down, on prevent static film layer locate core layer cloth and go up cover between the glue film, prevent static film layer down and locate core layer cloth and cover down between the glue film. The antistatic film layer improves the antistatic capacity of the core layer cloth and improves the bonding strength between the core layer cloth and the covering glue layer.

The utility model has the advantages as follows:

the utility model discloses a conveyer belt is through setting up the electrically conductive upper cover glue film, cover the glue film and limit glue film eliminates a large amount of productions of conveyer belt surface static down to prevent the inside static of conveyer belt to the surface transmission, the setting of electrically conductive soft silk screen and soft conductive wire can in time disperse static simultaneously, avoids local static accumulation, thereby improves the antistatic properties of conveyer belt, moreover permanent antistatic.

Drawings

Fig. 1 is a cross-sectional view of one embodiment of a conveyor belt of the present invention.

Fig. 2 is a top surface elevation view of another embodiment of a conveyor belt of the present invention.

Fig. 3 is a cross-sectional view at a-a in fig. 2.

Fig. 4 is a cross-sectional view of yet another embodiment of a conveyor belt of the present invention.

In the figure, 1, a core layer cloth, 2, an upper covering glue layer, 3, a lower covering glue layer, 4, an edge glue layer, 5, a conductive soft silk screen, 51, a radial guide wire, 52, a weft guide wire, 53, a soft conductive wire, 6 and a lower anti-static film layer.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

As shown in figure 1, the conveying belt with the anti-static function adhesion comprises a base body, core layer cloth 1 is adopted as a base body, an upper covering glue layer 2 and a lower covering glue layer 3 are respectively arranged on the upper surface and the lower surface of the core layer cloth, two side faces of the core layer cloth are provided with edge glue layers 4 which are attached to the core layer cloth, the upper covering glue layer and the lower covering glue layer, and the upper covering glue layer, the lower covering glue layer and the edge glue layers are all made of rubber containing an antistatic agent.

The antistatic agent used in the present application can be a conventional antistatic agent that can be used in the prior art, for example, in the present embodiment, the antistatic agent is nitrate SN of octadecyl amine ethyl dimethyl- β -hydroxylamine, and the upper cover glue layer, the lower cover glue layer, and the edge glue layer can be made by the following conventional film processing procedures:

adding ethylene propylene diene monomer rubber into a double-roller open mill for plasticating, then putting the mixture into an internal mixer for banburying, opening a top bolt, adding a reinforcing material, zinc oxide, stearic acid, a softening agent, PE powder and an anti-aging agent for banburying, and preparing a section of rubber compound through the processes of turning over, discharging and cooling by a normal-temperature fan; and putting the prepared first-stage rubber compound, a vulcanizing agent DCP, an auxiliary crosslinking agent TAIC and an antistatic agent SN into an internal mixer, mixing, turning over, discharging, cooling by a normal-temperature fan to obtain a second-stage rubber compound, extruding by an extruder according to a set size to obtain an upper covering rubber sheet, a lower covering rubber sheet and an edge rubber sheet, vulcanizing, respectively attaching to a core layer cloth on a forming machine to obtain an upper covering rubber layer, a lower covering rubber layer and an edge rubber layer, and vulcanizing to obtain the conveying belt.

For the messenger go up the cover glue film, cover the especially static sparse in time that the surface produced of glue film, avoid the accumulation, as shown in fig. 2, the utility model discloses a conveyer belt still is equipped with electrically conductive soft screen 5, include the last electrically conductive soft screen that sets up at the upper surface of core layer cloth, the lower electrically conductive soft screen that sets up at the lower surface of core layer cloth, will go up electrically conductive soft screen and the last cover glue film of lower electrically conductive soft screen laminating conveyer belt respectively, cover the glue film down, then through the calender calendering, cover the surface of glue film in the electrically conductive soft screen embedding on the messenger, in the cover glue film under the electrically conductive soft screen embedding down, both strengthen the fastness, be favorable to covering the intraformational static of glue to disperse through electrically conductive soft screen moreover. Further, the conductive soft silk screen is formed by weaving conductive radial guide wires 51 and conductive weft guide wires 52, acute included angles between the radial guide wires and the weft guide wires and the width direction of the conveying belt are 20-30 degrees, for example, 30 degrees is set in the embodiment, and the small included angle design can reduce the probability that the soft silk screen warps and folds during the operation of the conveying belt.

From the viewpoint of economic cost, the conductive soft silk screen is made by soaking a glass fiber net in the glue solution of the antistatic agent SN and then drying, and the glue solution of the SN can be directly coated on the glass fiber net. Furthermore, from the viewpoint of durability and antistatic effect, the fabric can also be woven by soft copper wires or other conductive silk threads.

In order to enhance the dispersion effect of static electricity on the conveyor belt, as shown in fig. 2 and 3, the conveyor belt further includes soft conductive threads 53 alternately passing through the upper and lower surfaces of the conveyor belt in the width direction of the conveyor belt, the soft conductive threads overlapping the intersections of the radial guide threads and the latitudinal guide threads to conduct the upper and lower surfaces of the core fabric more easily than the edge rubber layer.

In order to strengthen the anti-static effect of the conveyer belt, as shown in fig. 4, the conveyer belt can also be respectively provided with an upper anti-static film layer and a lower anti-static film layer 6 on the upper surface and the lower surface of the core layer cloth, thereby forming an antistatic agent belt core layer consisting of the upper anti-static film layer, the core layer cloth and the lower anti-static film layer, the upper anti-static film layer and the lower anti-static film layer are respectively extruded by two sections of rubber mixtures through an extruder to obtain an upper covering film, the lower covering film is directly attached to the core layer cloth before vulcanization, the upper anti-static film layer is arranged between the upper covering film layer and the core layer cloth, the lower anti-static film layer is arranged between the lower covering film layer and the core layer cloth, the adhesive force of the core layer cloth and the adhesive force of the upper and lower covering films are enhanced, and the anti-static performance of the core layer cloth is improved.

Claims

1. The utility model provides an prevent conveyer belt of electrostatic action adhesion, includes core layer cloth, its characterized in that, the conveyer belt still includes the upper cover glue film, lower cover glue film, the limit glue film of being made by the rubber that contains antistatic agent, wherein the upper surface of upper cover glue film laminating core layer cloth, the lower surface of lower cover glue film laminating core layer cloth, the both sides face of limit glue film laminating core layer cloth.

2. The conveyor belt of claim 1 further comprising a conductive flexible web comprising an upper conductive flexible web and a lower conductive flexible web disposed on opposite sides of the core fabric, the upper conductive flexible web being calendered and embedded in the upper cover mastic and the lower conductive flexible web being calendered and embedded in the lower cover mastic.

3. The conveyor belt according to claim 2, wherein the conductive soft silk screen is woven by conductive radial-direction guide silk threads and weft-direction guide silk threads, and acute included angles between the radial-direction guide silk threads and the weft-direction guide silk threads and the width direction of the core cloth are 20-30 ℃.

4. The conveyor belt according to claim 2 or 3, wherein the conductive soft wire mesh is made of a glass fiber mesh impregnated in a glue solution containing an antistatic agent and then dried.

5. The conveyor belt of claim 2 or 3 wherein the conductive soft wire mesh is woven from copper wire.

6. The conveyor belt of claim 3 further comprising a flexible conductive thread extending across the width of the belt, the flexible conductive thread passing alternately across the upper and lower surfaces of the belt and overlapping the intersection of the radial and latitudinal guide threads.

7. The conveyor belt of claim 1 wherein the upper and lower surfaces of the core fabric are further bonded to upper and lower antistatic film layers, respectively, the upper antistatic film layer being disposed between the core fabric and the upper cover layer, and the lower antistatic film layer being disposed between the core fabric and the lower cover layer.