An automatic batching system for a whole-core flame-retardant conveyor belt

Abstract

The present invention provides an automated batching system for a whole-core flame-retardant conveyor belt, comprising: a core paste material bin, a core paste auxiliary material bin, a liquid bin, a cover glue material bin, a stirring kettle, a mixing unit, a weighing unit, and a control unit, wherein a loss-in-weight scale is provided in the core paste material bin, and the weighing unit is respectively connected to the core paste auxiliary material bin, the liquid bin, and the cover glue material bin; the core paste material bin, the core paste auxiliary material bin, and the liquid bin are connected to the stirring kettle; the cover glue material bin and the liquid bin are connected to the mixing unit; and the control unit is connected to the stirring kettle, the mixing unit, the weighing unit, and each material bin. The batching system is provided with a core paste material bin, which feeds the core paste main material, the paste resin, separately, and is provided with a loss-in-weight scale, which can weigh the paste resin separately and accurately under the control of the control unit. In addition, the paste resin and the core paste auxiliary material are conveyed separately, and the control unit can accurately divide and control the batching system, thereby improving the operational stability and production efficiency of the entire batching system.

Description

Technical Field

[0001] The invention relates to a batching system, in particular to an automatic batching system for a whole-core flame-retardant conveyor belt. Background Art

[0002] The whole-core flame-retardant conveyor belt is made of an integral belt core which is impregnated with polyvinyl chloride paste, plasticized, and then covered with glue or plasticized and then covered with glue and vulcanized. Compared with other flame-retardant conveyor belts for mining, it has the characteristics of convenient connection, light weight, large demand and small investment. At the same time, this product has good flame retardancy, anti-static, impact resistance, wear resistance and corrosion resistance. It is mainly suitable for underground transportation in coal mines, and can also be used for material transportation in the metallurgical and chemical industries.

[0003] The production of solid flame-retardant conveyor belts involves a wide variety of raw materials, typically around 12. Among these, there are approximately 5 to 6 types of liquid materials and 6 to 7 types of powder materials.

[0004] Currently, only a few companies on the market have adopted semi-automatic solutions for the batching of whole-core flame-retardant conveyor belts. Paste resins are used in large quantities, and due to their large specific surface area, high adhesion, and easy aggregation after accumulation, they are difficult to weigh and convey, and are prone to bridging. Their characteristics also make them unsuitable for conventional cumulative weighing unit control methods. Currently, no semi-automatic solutions on the market have achieved automatic weighing and feeding for paste resins. In addition, some main and auxiliary powders share weighing and conveying devices, resulting in a high frequency of personnel replenishment and a high system failure rate, which can easily lead to reduced system production efficiency. The cover glue system has strict control requirements for the feeding process, temperature, speed, and time. Currently, most systems on the market only use automatic weighing of liquid materials, and have not achieved fully automatic weighing of the cover glue production system. Furthermore, some liquid materials in the batching have poor fluidity or crystallization in winter, which can also affect the operational stability and production efficiency of the entire system. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: to provide an automatic batching system for a whole-core flame-retardant conveyor belt in view of the various technical defects of the existing batching system for a whole-core flame-retardant conveyor belt.

[0006] In order to solve the above technical problems, the present invention provides an automatic batching system for a whole-core flame-retardant conveyor belt, which includes: a core paste material bin, a core paste auxiliary material bin, a liquid bin, a cover glue material bin, a stirring kettle, a mixing unit, a weighing unit, and a control unit, wherein a loss-in-weight weighing meter is provided in the core paste material bin, and the weighing unit is respectively connected with the core paste auxiliary material bin, the liquid bin, and the cover glue material bin; the core paste material bin, the core paste auxiliary material bin, and the liquid bin are connected with the stirring kettle; the cover glue material bin and the liquid bin are connected with the mixing unit; the control unit is electrically connected with the stirring kettle, the mixing unit, the weighing unit and each of the material bins.

[0007] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may also have the following feature: the feed port of the core paste bin is connected to the core paste hopper through a spiral or vacuum conveying device.

[0008] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may also have the following features: an automatic dust removal component is provided at the top of the core paste silo, and an arch-breaking component and a flow-aiding air ring are provided at the discharge port of the core paste silo.

[0009] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may also have the following features: level meters are provided near the top and bottom of the core paste bin, the core paste auxiliary material bin, the liquid bin, and the cover glue bin.

[0010] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may also have the following features: the core paste auxiliary material bin, the liquid bin, and the cover glue bin are all provided with spare bins.

[0011] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may further have the following feature: a heating and stirring component is provided on the liquid bin.

[0012] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may further have the following feature: the covering rubber material bin includes a covering rubber main material bin and a covering rubber auxiliary material bin.

[0013] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may also have the following feature: the inlet and the overflow port of the liquid bin are both connected to the liquid material tank.

[0014] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may further have the following features: the discharge port of the liquid bin is connected to a conveying pipeline, and the conveying pipeline is coated with a heat-insulating belt.

[0015] The automatic batching system for the whole-core flame-retardant conveyor belt provided by the present invention may also have the following features: the weighing unit includes several electronic scales, which are respectively arranged between the core paste auxiliary material bin and the stirring kettle, the liquid bin and the stirring kettle, the liquid bin and the mixing unit, and the cover glue bin and the mixing unit.

[0016] The beneficial effects of the present invention are:

[0017] In the automatic batching system for the whole core flame retardant conveyor belt of the present invention, the automatic batching system includes a core paste material bin, a core paste auxiliary material bin, a liquid bin, a cover glue material bin, a stirring kettle, a mixing unit, a weighing unit and a control unit. Among them, a loss-in-weight weighing meter is provided in the core paste material bin, the core paste auxiliary material bin, the liquid bin and the cover glue material bin are all connected to the weighing unit, the core paste material bin, the core paste auxiliary material bin and the liquid bin are connected to the stirring kettle, the cover glue material bin and the liquid bin are connected to the mixing unit, and the control unit is electrically connected to the mixing unit, the weighing unit and each of the material bins. Based on this automatic batching system, a core paste material bin is provided to feed the core paste main material paste resin separately, and a loss-in-weight weighing meter is provided therein, which can weigh the paste resin separately and accurately under the control of the control unit. In addition, the core paste auxiliary material bin, the liquid bin and the cover glue material bin are also connected to the weighing unit, which can weigh the core paste auxiliary material, liquid material and cover glue separately, thereby improving the accuracy of batching and production efficiency. In addition, the paste resin and core paste auxiliary materials are transported separately, and the control unit can accurately divide and control the batching system, so as to improve the operating stability and production efficiency of the entire batching system.

[0018] The top of the core paste silo is connected to the core paste hopper via a screw or vacuum conveyor, where the paste resin is stored. An automatic dust removal assembly is installed at the top of the silo to remove dust from the paste resin at the core paste silo inlet. Furthermore, an arch-breaking assembly and a flow-enhancing air ring are installed at the discharge port to prevent bridging of the paste resin at the discharge port and ensure smooth discharge of the paste resin.

[0019] In addition, the liquid bin is equipped with a heating and stirring component, which can heat and keep the liquid bin warm. It heats some liquid raw materials with poor low-temperature fluidity and easy crystallization, such as chlorinated paraffin and antistatic agent, and uses a stirring device to improve the heat exchange efficiency and liquid fluidity, thereby ensuring the smooth flow of liquid raw materials.

[0020] Moreover, the outlet of the liquid silo is connected to a conveying pipe, which is covered with an insulation tape. The insulation tape can further ensure the temperature of the liquid conveying pipe and prevent the liquid raw materials from crystallizing and sticking to the wall, thereby affecting the conveying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the automatic batching system for the whole-core flame-retardant conveyor belt in this embodiment;

[0022] Figure 2 It is a structural diagram of the core paste bin in this embodiment. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In this embodiment, the automatic batching system for the whole-core flame-retardant conveyor belt is used for the production of the whole-core flame-retardant conveyor belt, and performs batching, conveying, and stirring operations on the main and auxiliary materials of the whole-core flame-retardant conveyor belt.

[0025] like Figures 1 and 2 As shown, the automatic batching system for the whole-core flame-retardant conveyor belt includes a core paste material bin 10, a core paste auxiliary material bin 20, a liquid bin 30, a cover glue material bin 40, a stirring kettle 50, a mixing unit 60, a weighing unit 70 and a control unit 80.

[0026] A conveying device 11 is provided above the core paste material bin 10. A core paste material hopper 12 is provided at the front end of the conveying device 11, and paste resin is stored in the core paste material hopper 12. The outlet of the conveying device 11 is communicated with the feed port of the core paste material bin 10.

[0027] An automatic dust removal assembly 13 is provided at the top of the core paste silo 10 near the feed port. The dust removal assembly includes an anti-sticking material coated filter barrel and a pulse dust collector. The pulse dust collector can remove dust from the paste resin at the feed port.

[0028] A loss-in-weight scale 14 is provided in the core paste material bin 10 , and the loss-in-weight scale is electrically connected to the control unit 80 , which controls and weighs the discharge amount of the paste resin in the core paste material bin 10 .

[0029] Rotary paddle level gauges 15 are provided near the top and bottom of the core paste silo 10. The level gauges 15 are provided on the side walls of the silo to avoid impact from falling materials.

[0030] At the bottom of the core paste silo 10, near the discharge port, are installed an arch-breaking device 16 and a flow-enhancing ring 17. The arch-breaking device 16 comprises a stirring assembly and a hardened or helical gear reducer. The flow-enhancing ring 17 comprises a stainless steel nozzle and a polyurethane nozzle, threaded into the assembly. The strategic arrangement of the arch-breaking device 16 and the flow-enhancing ring 17 prevents bridging of the paste resin at the discharge port. Furthermore, a double-layered flow-enhancing ring 17 can be installed to enhance the fluidity of the paste resin, depending on the specific equipment requirements.

[0031] A transversely mounted variable frequency metering twin screw 18 is located below the discharge port of the core paste silo 10. This twin screw 18 is connected to a pneumatic gate valve 19. This gate valve 19 controls the start and stop of the variable frequency metering twin screw 18. When the variable frequency metering twin screw 18 is activated, it delivers the paste resin from the discharge port of the core paste silo 10 to the stirring kettle 50.

[0032] The core paste auxiliary material bin 20 includes four auxiliary material bins and one spare material bin. Aluminum hydroxide, No. 1 flame retardant, No. 2 flame retardant and calcium carbonate powder are stored in the four auxiliary material bins respectively.

[0033] The four auxiliary material silos and one spare material silo are also equipped with automatic dust removal components, two material level gauges, arch breaking devices, flow-aiding air rings, variable-frequency metering twin screws, and starter gate valves. The positional relationship and connection relationship of the dust removal components, two material level gauges, arch breaking devices, flow-aiding air rings, variable-frequency metering twin screws, and starter gate valves in the auxiliary material silos are the same as the positional relationship and connection relationship of the dust removal components, two material level gauges, arch breaking devices, flow-aiding air rings, variable-frequency metering twin screws, and starter gate valves in the core paste silo 10, and will not be repeated here.

[0034] The liquid storage tank 30 includes five liquid storage tanks and one standby tank. Each of the five liquid storage tanks contains plasticizers, flame retardants, stabilizers, chlorinated paraffin, and an antistatic agent. The tops of the five liquid storage tanks and the standby tank are connected to their respective liquid storage tanks.

[0035] Liquid level gauges are installed in the five liquid material bins and one spare bin, and a liquid material conveying unit is arranged in the pipeline between the liquid material bin and the liquid material weighing unit.

[0036] The liquid silos storing the chlorinated paraffin and antistatic agent are equipped with a heating assembly 31 on the outside and a stirring assembly 32 on the top. The heating assembly heats the chlorinated paraffin and antistatic agent in the liquid silos via an external power source, while the stirring assembly is controlled by a control unit. Furthermore, the connecting pipes between the two liquid silos are covered with insulation tape to insulate the pipes.

[0037] The rubber cover material bin 40 includes a main rubber cover material bin 41 and an auxiliary rubber cover material bin 42. The main rubber cover material bin 41 includes five main powder bins and one backup bin. The five main powder bins store aluminum hydroxide, flame retardant No. 1, flame retardant No. 2, calcium carbonate powder, and powdered resin, respectively. The auxiliary rubber cover material bin 42 includes two small rubber cover material bins, one for chlorinated polyethylene and one for nitrile rubber.

[0038] The main cover glue silo 41 and the auxiliary cover glue silo 42 of the cover glue silo 40 are also equipped with a dust removal assembly, two material level gauges, a dome breaking device, a flow-aiding air ring, a variable frequency metering twin screw, and a starter gate valve. The positional relationship and connection relationship of the dust removal assembly, two material level gauges, a dome breaking device, a flow-aiding air ring, a variable frequency metering twin screw, and a starter gate valve in the auxiliary material silo are the same as the positional relationship and connection relationship of the dust removal assembly, two material level gauges, a dome breaking device, a flow-aiding air ring, a variable frequency metering twin screw, and a starter gate valve in the core paste silo 10, and will not be repeated here.

[0039] The weighing unit 70 includes five electronic weighing scales, including three powder electronic weighing scales and two liquid electronic weighing scales.

[0040] Three electronic powder weighing scales are installed between the pipeline connecting the core paste auxiliary material bin 20 and the stirring kettle 50, between the pipeline connecting the capping glue main material bin 41 and the mixing unit 60, and between the pipeline connecting the capping glue auxiliary material bin 42 and the mixing unit 60. The lower ends of these three electronic powder weighing scales are also equipped with a percussion hammer, a flow-aiding air ring, and a pneumatic gate valve to control the electronic weighing scales and accelerate the circulation of the weighed powder.

[0041] Two electronic liquid weighing scales are respectively arranged between the pipeline connecting the liquid tank 30 and the stirring tank 50, and between the pipeline connecting the liquid tank 30 and the mixing unit 60. The two electronic liquid weighing scales are provided with pneumatic ball valves for control.

[0042] The upper end of the stirring kettle 50 is connected to the discharge port of the core paste material bin 10 , the core paste auxiliary material bin 20 , the liquid bin 30 or the discharge port of the weighing unit 70 .

[0043] The mixing unit 60 includes a high-speed mixer 61 and a cooling mixer 62. The upper end of the high-speed mixer 61 is connected to the liquid tank 30 and the main capping rubber bin 41 via the discharge port of a weighing unit 70. The cooling mixer 62 is connected to the auxiliary capping rubber bin 42 via the discharge port of the weighing unit 70. The discharged material then enters the subsequent product production process, such as the pelletizing extruder.

[0044] The control unit 80 includes an electrical control cabinet and a monitoring computer. The control unit is equipped with a Siemens S7 series PLC and module components, and is electrically connected to the above-mentioned silos, weighing units, stirring tank 50, and mixing unit 60 to control them.

[0045] The operating process of the mixing tank 50 is as follows: first, the liquid silo 30 is fed according to the recipe instructions of the control unit 80, and the liquid is weighed on the electronic liquid scale, and the mixing tank 50 is started. At the same time, the core paste auxiliary material silo 20 is fed according to the recipe instructions of the control unit 80, and the powder is weighed on the electronic powder scale. When the material is filled to 2 / 3 of the mixing tank 50, it is added to the mixing tank 50. Secondly, the core paste material silo 10 is weighed on the loss-in-weight scale 14 inside it and added to the mixing tank 50. Then, stirring is carried out according to the process time of the control unit 80. After stirring is completed, the pneumatic ball valve of the mixing tank 50 is opened to discharge the material, and the pneumatic ball valve is closed after the discharge is completed.

[0046] When the raw material in the liquid tank 30 falls below the lower liquid level, the control unit 80 controls the corresponding pump of the liquid material storage tank above the liquid tank 30 to start delivering the raw material to the corresponding liquid tank 30. When the upper limit is reached, the pump station stops working. The control is cyclically controlled in sequence.

[0047] The operating process of the mixing unit 60 is as follows: First, the main capping rubber material silo 41 is fed according to the recipe instructions of the control unit 80, and the material is weighed on the electronic powder scale. The high-speed mixer 61 is activated for low-speed mixing. The weighed main capping rubber material enters the high-speed mixer 61. Then, the liquid silo 30 is fed according to the recipe instructions of the control unit 80, and the material is weighed on the electronic liquid scale. After the material is added, the high-speed stirring function of the high-speed mixer 61 is activated and the material is mixed according to the process of the control unit 80. Next, the auxiliary capping rubber material silo 42 is fed according to the recipe instructions of the control unit 80, and the material is weighed on the electronic powder scale. The vertical cooling mixer 62 is then activated according to the process. Simultaneously, the material from the high-speed mixer 61 is discharged into the cooling mixer 62. When the temperature drops to 50°C, the weighed small capping rubber material is added to the cooling mixer 62 and mixed according to the process. After mixing is completed, the powder is discharged. The discharged material then enters the subsequent product production process such as the granulation extruder.

[0048] According to the automatic batching system for the whole core flame retardant conveyor belt in the above embodiment, the automatic batching system includes a core paste material bin, a core paste auxiliary material bin, a liquid bin, a cover glue material bin, a stirring kettle, a mixing unit, a weighing unit and a control unit. Among them, a loss-in-weight weighing meter is provided in the core paste material bin, the core paste auxiliary material bin, the liquid bin and the cover glue material bin are all connected to the weighing unit, the core paste material bin, the core paste auxiliary material bin and the liquid bin are connected to the stirring kettle, the cover glue material bin and the liquid bin are connected to the mixing unit, and the control unit is electrically connected to the stirring kettle, the mixing unit, the weighing unit and each bin. Based on the automatic batching system, a core paste material bin is provided to feed the core paste main material paste resin separately, and a loss-in-weight weighing meter is provided therein, which can weigh the paste resin separately and accurately under the control of the control unit. In addition, the core paste auxiliary material bin, the liquid bin and the cover glue material bin are also connected to the weighing unit, which can weigh the core paste auxiliary material, liquid material and cover glue separately, thereby improving the accuracy of batching and production efficiency. In addition, the paste resin and core paste auxiliary materials are transported separately, and the control unit can accurately divide and control the batching system, so as to improve the stability and production efficiency of the entire batching system.

[0049] The top of the core paste silo is connected to the core paste hopper via a conveyor, where paste resin is stored. An automatic dust removal assembly is installed at the top of the silo to remove dust from the paste resin at the core paste silo's inlet. Furthermore, an arch-breaking assembly and a flow-enhancing air ring are installed at the discharge port to prevent bridging of the paste resin at the discharge port, ensuring smooth discharge of the paste resin.

[0050] In addition, the liquid bin is provided with a heating and stirring component, which can heat and keep the liquid bin warm. By heating some liquid raw materials with poor low-temperature fluidity and easy crystallization, such as chlorinated paraffin and antistatic agent, and using a stirring device at the same time, the heat exchange efficiency and liquid fluidity are improved, thereby ensuring the smooth flow of liquid raw materials.

[0051] Moreover, the outlet of the liquid silo is connected to a conveying pipe, which is covered with an insulation tape. The insulation tape can further ensure the temperature of the liquid conveying pipe and prevent the liquid raw materials from crystallizing and sticking to the wall, thereby affecting the conveying effect.

[0052] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. An automatic batching system for a whole-core flame-retardant conveyor belt, characterized in that: include: Core paste material bin, core paste auxiliary material bin, liquid bin, cover glue bin, stirring kettle, mixing unit, weighing unit, control unit, Wherein, a loss-in-weight weighing meter is provided in the core paste bin. The weighing unit is respectively connected to the core paste auxiliary material warehouse, the liquid warehouse, and the cover glue material warehouse; The core paste material bin, the core paste auxiliary material bin, and the liquid bin are connected to the stirring kettle; The capping glue material bin and the liquid bin are in communication with the mixing unit; The control unit is electrically connected to the stirring tank, the mixing unit, the weighing unit and each of the silos. A conveying device is provided above the core paste material bin, and a core paste material hopper is provided at the front end of the conveying device. The feed port of the core paste bin is connected to the core paste hopper through a screw or vacuum conveying device. An automatic dust removal component is provided at the top of the core paste bin near the feed inlet. The weighing unit includes several electronic scales, and the cover glue material bin includes a cover glue main material bin and a cover glue auxiliary material bin. The electronic scales are respectively arranged between the pipelines connecting the core paste auxiliary material bin and the stirring kettle, between the pipelines connecting the cover glue main material bin and the mixing unit, and between the pipelines connecting the cover glue auxiliary material bin and the mixing unit, and a striking air hammer is also arranged under the electronic scale.

2. The automatic batching system for a solid flame-retardant conveyor belt according to claim 1 is characterized by: An arch-breaking component and a flow-aiding air ring are provided at the discharge port of the core paste bin.

3. The automatic batching system for a solid flame-retardant conveyor belt according to claim 1 is characterized in that: Material level meters are provided near the top and bottom of the core paste material bin, the core paste auxiliary material bin, the liquid bin, and the cover glue material bin.

4. The automatic batching system for a solid flame-retardant conveyor belt according to claim 1 is characterized in that: The core paste auxiliary material bin, the liquid bin, and the cover glue bin are all provided with spare material bins.

5. The automatic batching system for a solid flame-retardant conveyor belt according to claim 1 is characterized in that: The liquid bin is provided with a heating and stirring component.

6. The automatic batching system for a solid flame-retardant conveyor belt according to claim 1 is characterized in that: The capping glue material bin comprises a capping glue main material bin and a capping glue auxiliary material bin.

7. The automatic batching system for a solid flame-retardant conveyor belt according to claim 1 is characterized in that: The inlet and overflow port of the liquid bin are both connected to the liquid material tank.

8. The automatic batching system for a solid flame-retardant conveyor belt according to claim 1 is characterized in that: The discharge port of the liquid bin is connected to a delivery pipeline. The conveying pipeline is coated with a thermal insulation belt.

9. The automatic batching system for a solid flame-retardant conveyor belt according to claim 1, characterized in that: The electronic scale is also respectively arranged between the liquid bin and the stirring kettle, and between the liquid bin and the mixing unit.

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