A bulk automatic loading system device

Abstract

The utility model relates to the technical field of loading systems, and discloses a bulk automatic loading system device, including a system circuit, characterized in that: a Roots blower, a dust collector, a lifting head, a frequency converter, a PLC, a touch screen, a rotor scale and a Coriolis scale are electrically connected in the system circuit. After the bulk loading system of the utility model is completed, unmanned loading is completely realized, the labor intensity of post personnel is reduced, and the process is simplified at the same time, the link of notifying the discharge of materials by the laboratory on site in the past is changed, the central control integration is more perfect, the loading time and unnecessary steps are saved, the loading measurement is more accurate, the reloading is more convenient, the operation is simpler, the phenomenon of vehicle congestion is reduced, and the safety factor is improved. The use of the frequency converter has a great protective effect on the equipment, reduces noise, fully meets the standards of environmental protection requirements, reduces the number of loading times, reduces the dust raised by vehicles going back and forth, and reduces the number of water spraying times.

Description

Technical Field

[0001] The utility model relates to the technical field of loading systems, in particular to a bulk automatic loading system device. Background Art

[0002] Bulk cement has the advantages of fast transportation out of the warehouse, strong ability to adapt to the delivery of multiple varieties, less waste of resources, which is conducive to reducing cement production costs and the sustainable development of the industry. Bulk cement is usually transported by tank trucks. During loading, the bulk automatic loading system controls the loading of cement from the bulk warehouse into the tank truck.

[0003] Since the promulgation of the National Overload Control Regulations in October 2016, when loading bulk trucks loaded with cement, the driver and loader cannot grasp the weight of the entire vehicle in real time, resulting in the inability to accurately grasp the loading volume. After loading, the driver often overloads the truck, resulting in the tonnage measured by the scale after loading often being overloaded or insufficient. It is often necessary to drive back to the bulk warehouse for reloading or unloading. As a result, the efficiency of bulk cement work is low, and there are many delivery vehicles, and the vehicles are rushing back and forth, which poses a great hidden danger to employee safety and is prone to traffic accidents. The vehicles shuttling back and forth cause serious pollution to the environment. At the same time, there are many people in this position, and there is a shortage of people in other positions, so the positions can be adjusted and optimized.

[0004] Therefore, we propose a bulk automatic loading system device to solve the above-mentioned problems. Summary of the invention

[0005] The utility model aims to provide a bulk automatic loading system device to solve the problem proposed in the above background technology that when loading a bulk truck loaded with cement, the driver and the loader cannot grasp the weight of the whole vehicle in real time and dynamically, resulting in the inability to accurately grasp the loading volume. After loading, the driver often overloads the vehicle, resulting in the tonnage measured by the scale after loading often being overloaded or insufficient, and it is often necessary to drive back to the bulk warehouse for reloading or unloading, resulting in low efficiency of bulk cement work, and a large number of delivery vehicles, which go back and forth, posing a great hidden danger to employee safety, prone to traffic accidents, and vehicles shuttling back and forth, causing serious pollution to the environment. At the same time, there are many people in this position and a shortage of people in other positions.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solutions: a bulk automatic loading system device, comprising a system circuit, wherein a Roots blower, a dust collector, a lifting head, a frequency converter, a PLC, a touch screen, a rotor scale and a Coriolis scale are electrically connected to the system circuit;

[0007] The given quantity and feedback quantity between the PLC and the frequency converter are 4-20MA;

[0008] The connection circuits of the Roots blower, dust collector, lifting head and rotor scale are all provided with thermal relays, circuit breakers and AC contactors;

[0009] A plurality of current relays are arranged in the fault circuit and indicator light circuit of the PLC.

[0010] Preferably, the loading capacity is preset in the system.

[0011] Preferably, the touch screen gives tons of cement.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model relates to an automatic bulk loading system device. Before the technical transformation of the bulk loading system, 5 personnel in each team were required to unload the materials. After the technical transformation of the bulk loading system, only 2 people are needed to unload the materials, which reduces 3 personnel in each shift and a total of 12 people. The labor intensity of the personnel is effectively reduced, and unmanned loading is completely realized.

[0014] 2. The utility model involves a bulk automatic loading system device, which simplifies the process, changes the link of on-site notification of material discharge by the laboratory before the completion of technical transformation, and makes the central control integration more perfect.

[0015] 3. The utility model relates to an automatic bulk loading system device, which greatly saves loading time and some unnecessary steps. Taking a 50-ton tank truck as an example, each truck can save 10 minutes of time and increase the unloading volume by 50-100 tons per hour.

[0016] 4. The utility model relates to a bulk automatic loading system device, which has more accurate measurement during loading, more convenient reloading and simpler operation.

[0017] 5. The utility model relates to a bulk automatic loading system device, which reduces vehicle congestion and improves the safety factor.

[0018] 6. The utility model involves a bulk automatic loading system device, which saves electricity and saves RMB 640,000 per year. In addition, due to the use of the frequency converter, it plays a great protective role on the equipment and reduces the noise to 30-40 decibels at night, which fully meets the environmental protection standards.

[0019] 7. The utility model relates to a bulk automatic loading system device, which reduces the number of loading times, reduces the dust raised by vehicles going back and forth, and reduces the number of water spraying times. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a circuit diagram of a bulk automatic loading system device before technical transformation involved in the utility model;

[0021] Figure 2 The utility model is a circuit diagram of a bulk automatic loading system after technical transformation. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-Figure 2 A bulk automatic loading system device includes a system circuit, in which a Roots blower, a dust collector, a lifting head, a frequency converter, a PLC, a touch screen, a rotor scale and a Coriolis scale are electrically connected.

[0024] Among them, Roots blower is a positive displacement blower, with impeller end face, front and rear end covers of the blower. The principle is to use two blade-shaped rotors to make relative motion in the cylinder to compress and transport gas. This blower has a simple structure and is easy to manufacture. It is widely used in aquaculture oxygenation, sewage treatment aeration, cement transportation, and is more suitable for gas transportation and pressurization systems in low-pressure occasions. It can also be used as a vacuum pump, etc.

[0025] The PLC model is S7-200, which is a small programmable controller suitable for automation of detection, monitoring and control in various industries and occasions;

[0026] In a Coriolis scale, the main measuring element is an impeller or measuring wheel driven at a constant speed. The bulk material flow will hit this wheel axially. Then, the deflection cone will radially convey the fluid to the guide vanes. The guide vanes accelerate the material conveying speed to the constant peripheral speed of the measuring wheel. The force required for acceleration is called the Coriolis force. At a constant speed, the Coriolis force can measure the weight through the torque required by the drive motor (the torque is proportional to the mass flow rate of the material); the dust collector is a widely used dust removal equipment;

[0027] The principle of the rotor scale is that when the material is fed into the ring-shaped balance rotor scale by the quantitative feeder, the rotor scale impeller rotates, causing the material to flow evenly within the semicircle from the feed port to the discharge port. Since the scale body adopts a balance structure, there is material on one side of the disc-shaped scale body and no material on the other half, causing the scale body to lose balance. The weight of the material is detected by the weighing sensor and sent to the control instrument. At the same time, the detected speed signal is sent to the instrument. After processing, the instantaneous flow rate and cumulative amount are obtained. The flow rate can be adjusted by controlling the feeding speed.

[0028] The loading quantity is preset in the system, and when the unloading quantity reaches the set value, the flow valve above the metering scale is automatically closed (not shown in the figure).

[0029] The given quantity and feedback quantity between PLC and frequency converter are 4-20MA.

[0030] The touch screen gives the tonnage of cement, so that the driver and loader can grasp the weight of the whole vehicle in real time and dynamically, to avoid the inability to accurately grasp the loading volume. The driver often overloads the vehicle after loading, resulting in the tonnage measured by the scale after loading being often overloaded or insufficient. It is often necessary to drive back to the bulk warehouse for reloading or unloading, which causes the problem of low efficiency of bulk cement work.

[0031] Thermal relays, circuit breakers and AC contactors are installed in the connection circuits of Roots blowers, dust collectors, lifting heads and rotor scales. Thermal relays use the thermal effect of current to cut off the circuit protection device, which is used for motor overload protection, phase loss and current unbalanced operation protection and other electrical equipment heating state control. Circuit breakers are used to protect circuits from damage caused by overcurrent / overload or short circuit, and disconnect the current when the protection relay detects a fault. AC contactors are used to connect and disconnect lines or frequently control the operation of motors and other equipment.

[0032] Multiple current relays are set in the fault circuit and indicator light circuit of the PLC. When current passes through the circuit, a magnetic field will be generated, which will generate electromagnetic force in the energized coil. This electromagnetic force can open or close a mechanical switch, thereby achieving the purpose of controlling the current.

[0033] In this embodiment: the touch screen gives the tonnage of cement, so that the driver and loader can grasp the weight of the whole vehicle in real time and dynamically, avoiding the inability to accurately grasp the loading volume. Taking comprehensive consideration, Henan Fengbo Coriolis scale is more in line with the requirements of technical transformation. It has the advantages of accurate measurement, small equipment size, suitable for most sites, and short construction period. After the technical transformation, the bulk loading system is completed by 5 positions of each team to discharge the material, but now only 2 people are needed, 3 positions are reduced per shift, and a total of 12 people are reduced, which fully realizes unmanned loading, reduces the labor intensity of the personnel, simplifies the process, and changes the link of notifying the discharge of materials by the laboratory on site in the past. The central control integration is more perfect.

[0034] Working principle: Through investigation, a floor scale is installed under the channel of bulk cement trucks; a solid (powder) flow meter, bulk Pfister rotor scale and Henan Fengbo Coriolis scale are installed at the bottom of the bulk warehouse. Through comprehensive consideration of the advantages and disadvantages of various scales, such as accuracy, price, maintenance cost, engineering cycle, etc., Henan Fengbo Coriolis scale is more in line with the requirements of technical transformation. By presetting the loading quantity in the system, the flow valve above the metering scale is automatically closed when the unloading quantity reaches the set value.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bulk automatic loading system device, including a system circuit, characterized in that: The system circuit is electrically connected with a Roots blower, a dust collector, a lifting head, a frequency converter, a PLC, a touch screen, a rotor scale and a Coriolis scale; The given quantity and feedback quantity between the PLC and the frequency converter are 4-20MA; The connection circuits of the Roots blower, dust collector, lifting head and rotor scale are all provided with thermal relays, circuit breakers and AC contactors; A plurality of current relays are arranged in the fault circuit and indicator light circuit of the PLC.

2. The bulk automatic loading system device according to claim 1, characterized in that: The loading quantity is preset in the system.

3. The bulk automatic loading system device according to claim 1, characterized in that: The touch screen gives the tonnage of cement.

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