Automatic batching system for light crystal stone wall material raw materials

Abstract

A light crystal stone wall material raw material automatic batching system comprises a plurality of raw material bin control units, a material supplementing spiral conveyor and a weighing bin control unit, each raw material bin control unit comprises an upper limiting rotation stopping material level device, a lower limiting rotation stopping material level device and a plurality of raw material bins, and each weighing bin control unit comprises a weighing bin and a discharging spiral conveyor. Every two raw material bins correspond to one weighing bin, the material supplementing spiral conveyors are fixedly connected to the lower portions of the raw material bins, the material supplementing spiral conveyors convey raw materials of the raw material bins into the weighing bins through the material distributing electromagnetic valves, the weighing bins are in flexible connection with the material supplementing spiral conveyors, and the measuring ranges of the material supplementing spiral conveyors and the measuring ranges of the weighing bins are consistent. And an unloading screw conveyor is arranged below the weighing bin. Two raw material bins correspond to one weighing bin, the whole structure is simple and compact, and the measuring range of the material supplementing spiral conveyor is consistent with the measuring range of the weighing bin, so that the measuring range of the material supplementing spiral conveyor and the measuring range of the weighing bin are consistent with the matching parameters of raw materials, the control difficulty of weighing equipment is reduced, and more controllable material supplementing and discharging processes are ensured.

Description

Technical Field

[0001] The utility model belongs to the field of barytes wall material production equipment, and particularly relates to an automatic batching system for barytes wall material raw materials. Background Art

[0002] The commonly used control systems on the equipment in the related industries at present are as follows Figure 1 : Adopting the serial communication method, communicating to the PLC controller via RS485, realizing the reading and writing operations of the electronic scale on the touch screen. The electronic scale requires parameters such as zero clearing, peeling, air quantity, and residual quantity. The control process is complex. One feeding screw conveyor only corresponds to one weighing bin, and it cannot achieve fully automatic batching. The structure of the entire batching system is not reasonable enough to ensure the batching accuracy. Since the barytes raw materials have relatively high requirements for the batching accuracy, it is relatively difficult to implement the batching process of barytes raw materials with this traditional batching control system. Content of the Utility Model

[0003] In order to overcome the above deficiencies, the utility model provides an automatic batching system for barytes wall material raw materials.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] An automatic batching system for barytes wall material raw materials includes multiple raw material bin control units, feeding screw conveyors, and weighing bin control units. The raw material bin control unit includes upper limit non-contact rotary level switches, lower limit non-contact rotary level switches, and multiple raw material bins. The weighing bin control unit includes weighing bins and discharging screw conveyors. Every two of the raw material bins correspond to one weighing bin. The feeding screw conveyors are fixedly connected below the raw material bins. The feeding screw conveyors transport the raw materials in the raw material bins into the weighing bins through distributing solenoid valves. The weighing bins are flexibly connected to the feeding screw conveyors. The measuring ranges of the feeding screw conveyors and the weighing bins are the same. A discharging screw conveyor is arranged below the weighing bin.

[0006] Further optimization: A bin body vibration motor is arranged on the outer wall of the raw material bin. The upper limit non-contact rotary level switch and the lower limit non-contact rotary level switch are respectively arranged at the upper and lower parts inside the raw material bin.

[0007] Further optimization: The feeding screw conveyors with large diameters are matched with weighing bins with large measuring ranges, and the screw conveyors with small diameters are matched with weighing bins with small measuring ranges.

[0008] Further optimization: A conveyor belt is arranged below the discharging screw conveyor. The conveyor belt is flexibly connected to the discharging screw conveyor. The raw materials in the weighing bin fall onto the conveyor belt through the discharging screw conveyor to achieve mixing.

[0009] For further optimization, multiple weighing sensors are provided on each weighing bin, and the multiple weighing sensors are summed through a junction box and then sent to a four-channel weight transmitter.

[0010] The beneficial effects of the present utility model are as follows:

[0011] Two raw material bins correspond to one weighing bin, and the entire weighing structure is simple and compact. The range of the feeding screw conveyor is the same as that of the weighing bin, achieving consistency with the raw material ratio parameters, thereby reducing the control difficulty of the weighing equipment and ensuring a more controllable feeding and discharging process. Description of the Drawings

[0012] FIG. 1 is a schematic structural diagram of a control system in the prior art;

[0013] FIG. 2 is a schematic structural diagram of the present utility model;

[0014] FIG. 3 is a partial structural diagram of the present utility model;

[0015] FIG. 4 is a working flow chart of the present utility model.

[0016] Reference Signs:

[0017] 1. Raw material bin control unit, 2. Feeding screw conveyor, 3. Weighing bin control unit, 4. Conveyor belt, 5. Upper limit non-contact rotary level switch, 6. Lower limit non-contact rotary level switch, 7. Raw material bin, 8. Weighing bin, 9. Discharging screw conveyor, 10. Diverting solenoid valve, 11. Bin body vibration motor, 12. Weighing sensor. Detailed Embodiments

[0018] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be described in detail below with reference to specific embodiments. The following embodiments are implemented on the premise of the technical solution of the present utility model, and detailed implementation manners and specific operation processes are given. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited to the following embodiments.

[0019] An automatic batching system for barite wall material raw materials, comprising a plurality of raw material bin control units 1, a feeding screw conveyor 2, and a weighing bin control unit 3. The raw material bin control unit 1 includes an upper limit non-contact rotary level indicator 5, a lower limit non-contact rotary level indicator 6, and a plurality of raw material bins 7. A bin body vibration motor 11 is provided on the outer wall of the raw material bin 7. The upper limit non-contact rotary level indicator 5 and the lower limit non-contact rotary level indicator 6 are respectively arranged at the upper and lower parts inside the raw material bin 7. The weighing bin control unit 3 includes a weighing bin 8 and a discharging screw conveyor 9. Every two raw material bins 7 correspond to one weighing bin 8. The feeding screw conveyor 2 is fixedly connected below the raw material bin 7. The two feeding screw conveyors 2 work in sequence, and the raw materials in the raw material bin 7 are conveyed into the weighing bin 8 through a distributing solenoid valve 10. A plurality of weighing sensors 12 are arranged on each weighing bin 8. The plurality of weighing sensors 12 are summed through a junction box and then sent to a four-channel weight transmitter.

[0020] The weighing bin 8 is flexibly connected to the feeding screw conveyor 2. When the left valve of the distributing solenoid valve 10 is opened, the left feeding screw conveyor 2 operates. When the right valve is opened, the right feeding screw conveyor 2 operates. The speed of the feeding screw conveyor 2 is adjusted by a frequency converter. The feeding screw conveyor 2 adjusts the diameter sizes of different sizes according to the requirements of the raw material formula and the rated weight of the weighing sensors 12, so that the measuring ranges of the feeding screw conveyor 2 and the weighing bin 8 are always consistent. Compared with the traditional feeding screw conveyor, it can effectively improve the precision of feeding. The consistency of the measuring range is specifically as follows: the feeding screw conveyor 2 with a large diameter is matched with a weighing bin 8 with a large measuring range, and the screw conveyor 2 with a small diameter is matched with a weighing bin 8 with a small measuring range. A discharging screw conveyor 9 is provided below the weighing bin 8. A conveyor belt 4 is provided below the discharging screw conveyor 9. The conveyor belt 4 is flexibly connected to the discharging screw conveyor 9. The raw materials in the weighing bin 8 fall onto the conveyor belt 4 through the discharging screw conveyor 9. The discharging speed of the discharging screw conveyor 9 is set according to the proportion of different raw materials in the formula, so as to realize that the raw materials transmitted to the conveyor belt 4 at the same time are consistent with the raw material formula ratio to realize mixing.

[0021] Working process:

[0022] The raw material bin control unit 1 includes multiple raw material bins 7 of different sizes. According to the raw material formula parameters input into the host computer, different raw materials are transported to the corresponding raw material bins 7 through the pneumatic conveying system. The corresponding feeding screw conveyor 2 is selected through the dosing solenoid valve 10. Using the batching method of the differential method, feeding is carried out by calculating the difference between the actual amount and the initial amount. The feeding screw conveyor 2 runs quickly. When the difference is greater than the slow addition amount set value, the feeding screw conveyor 2 starts to run slowly until the difference is equal to the formula set amount, and the feeding screw conveyor 2 stops running; the weighing bin 8 is lifted by multiple weighing sensors 12. After the weighing sensors 12 are summed through the junction box, they reach the four-channel weight transmitter. The running speed of the discharging screw conveyor 9 is set according to the formula ratio of different raw materials in the formula, realizing the primary mixing process of the raw materials in the conveyor belt 4.

[0023] During the working process, the host computer needs to collect the following parameter values:

[0024] Bin number: The number of the raw material bin control unit 1 containing the raw materials to be batched. In batching control, the system automatically opens the corresponding feeding screw conveyor according to the selected raw material bin control unit 1 for batching;

[0025] Set weight value: The weight value required in a certain raw material formula;

[0026] Initial amount: The displayed weight of the weighing bin before batching;

[0027] Actual amount: The actual amount of materials added to the weighing bin;

[0028] Slow addition amount: The set weight when the frequency converter changes from high frequency to low frequency.

[0029] The above has shown and described the main features, usage methods, basic principles, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements according to the actual situation. These changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic batching system for raw materials of light crystal stone wall materials, comprising a plurality of raw material bin control units (1), a feeding screw conveyor (2) and a weighing bin control unit (3), characterized in that: The raw material bin control unit (1) comprises an upper limit stop rotary level device (5), a lower limit stop rotary level device (6) and a plurality of raw material bins (7); the weighing bin control unit (3) comprises a weighing bin (8) and a discharge screw conveyor (9); every two raw material bins (7) correspond to one weighing bin (8); the feeding screw conveyor (2) is fixedly connected below the raw material bin (7); the feeding screw conveyor (2) conveys the raw materials from the raw material bin (7) to the weighing bin (8) via a material distribution solenoid valve (10); the measuring ranges of the feeding screw conveyor (2) and the weighing bin (8) are consistent; and a discharge screw conveyor (9) is provided below the weighing bin (8).

2. The automatic batching system for light crystal stone wall material raw materials according to claim 1, characterized in that: The outer wall of the raw material bin (7) is provided with a bin body vibration motor (11), and the upper limit stop rotary material level device (5) and the lower limit stop rotary material level device (6) are respectively arranged at the upper part and the lower part of the raw material bin (7).

3. The automatic batching system for light crystal stone wall material raw materials according to claim 1, characterized in that: The large-diameter feeding screw conveyor (2) is matched with a weighing bin (8) with a large measuring range, and the small-diameter feeding screw conveyor (2) is matched with a weighing bin (8) with a small measuring range.

4. The automatic batching system for light crystal stone wall material raw materials according to claim 1, characterized in that: A conveyor belt (4) is provided below the unloading screw conveyor (9), and the conveyor belt (4) is flexibly connected to the unloading screw conveyor (9). The raw materials in the weighing bin (8) fall onto the conveyor belt (4) through the unloading screw conveyor (9) to achieve one-time mixing.

5. The automatic batching system for light crystal stone wall material raw materials according to claim 1, characterized in that: Each weighing bin (8) is provided with a plurality of weighing sensors (12), and the plurality of weighing sensors (12) are summed up through a junction box and then sent to a four-channel weight transmitter.

Images