Intelligent batching machine for dehydrated aggregates
By adopting a double-opening bin bottom door, an arch-breaking screw, and a variable frequency motor control in the dewatered aggregate batching machine, the problems of uneven feeding from multiple bins and inaccurate metering caused by material viscosity were solved, and high-precision batching control was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU BAIKEFEIR MINING CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-31
AI Technical Summary
When traditional dewatered aggregate batching equipment discharges material from multiple bins simultaneously, the material discharge from each bin is uneven, resulting in large differences in material quality. In some bins, the material is piled up too high, causing the belt bucket scale to overflow and making accurate measurement impossible.
The design incorporates a double-opening bottom door and an arch-breaking screw, combined with a hydraulic cylinder to control the material flow rate, a belt bucket scale and a variable frequency motor to control the feeding rate, and a two-stage metering mode of coarse and fine scales to achieve bucket-by-bucket feeding and control.
It achieves balanced material feeding in each compartment, accurately controls the feeding and metering accuracy within ±1%, solves the problem of poor material feeding caused by high material viscosity, and ensures the continuity and accuracy of the batching process.
Smart Images
Figure CN224577616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dewatered aggregate batching technology, and in particular to an intelligent dewatered aggregate batching machine. Background Technology
[0002] In traditional dewatered aggregate batching equipment, when multiple bins are fed simultaneously, the material feeding is uneven, resulting in large differences in the quality of the material fed into each bin. In some bins, the material is piled up too high, causing the belt bucket scale to overflow and making it impossible to complete the measurement, resulting in low overall batching and measurement accuracy. Utility Model Content
[0003] To address the aforementioned issues, this utility model provides an intelligent batching machine for dewatered aggregates, suitable for batching and metering loose aggregates or low-viscosity materials such as dewatered whole tailings or graded coarse tailings, tailings pond sand, river sand, and manufactured sand.
[0004] The technical solution of this utility model is as follows:
[0005] A smart batching machine for dewatered aggregates includes at least two hoppers on its frame. Each hopper has a double-leaf bottom door at its bottom. A hydraulic cylinder is hinged to the side wall of each hopper to drive the opening and closing of the bottom door. The bottom door has multiple opening limits, including a fully open limit, at least one intermediate limit, and a fully closed limit. Specifically, the bottom door of each hopper adopts a double-leaf design. By setting and controlling the opening degree of the two sides of the double-leaf bottom door, the corresponding opening limits are achieved. The specific opening degree value can be set according to the actual material feeding situation during commissioning to meet the usage requirements of different material flow rates. A belt bucket scale is installed below each hopper.
[0006] In a further technical solution, the hydraulic station of the hydraulic cylinder is equipped with an accumulator for controlling the extension and retraction speed of the hydraulic rod.
[0007] In a further technical solution, the hopper is equipped with an arch-breaking screw, and the frame is equipped with a heavy-duty motor that drives the arch-breaking screw to rotate. The arch-breaking screw can be set with one or more as needed. Through the agitation of the arch-breaking screw, the technical problems of high material viscosity, poor material discharge, and inability to achieve accurate material metering are solved.
[0008] In a further technical solution, the heavy-duty motor is driven by jogging or continuous operation, and the jogging mode is controlled by a settable operating time.
[0009] In a further technical solution, the belt bucket scale mainly consists of a belt conveyor, a weighing bucket mounted on the belt conveyor, and a weighing scale mounted at the bottom of the belt conveyor.
[0010] In a further technical solution, the weighing scale is a three-point pressure sensor weighing scale or a tension sensor weighing scale.
[0011] In a further technical solution, the drive mechanism of the belt conveyor is a variable frequency motor equipped with a brake.
[0012] In a further technical solution, the belt bucket scale is equipped with a pressure reducing plate inside the bucket. The extension direction of the pressure reducing plate is parallel to the transmission direction of the belt conveyor, which can reduce the load of the material on the belt conveyor.
[0013] In a further technical solution, the unloading end of the belt conveyor is equipped with a belt electronic scale.
[0014] In a further technical solution, the bottom door is a rotating bottom door, which makes it easier to open and close the bottom door, and the hydraulic cylinder exerts less torque on the bottom door.
[0015] The batching principle of this intelligent dehydrated aggregate batching machine is as follows:
[0016] The system employs a two-stage metering system with coarse and fine weighing. A total weighing mass and a coarse weighing mass are set. At the start of metering, the bottom door of the hopper is either fully open or at the middle limit. When the material quantity in the hopper is greater than or equal to the coarse weighing mass, the bottom door is closed slightly to the fine weighing middle limit, and feeding continues until the total weighing mass is reached. The bottom door is then closed to the closing limit. Simultaneously, a cumulative metering method is used, with material fed hopper by hopper. First, the bottom door of hopper 1 is opened, and after the set weighing mass is reached, it is closed. Then, the bottom door of hopper 2 is opened, and metering is completed when the set total material quantity is reached. The belt-driven bucket scale uses a coarse and fine weighing feed mode, with a set total feed mass and a coarse feed mass. The belt conveyor uses high and low frequency, fast and slow feeding speeds. The variable frequency motor is equipped with a brake. Feeding begins with high-frequency, fast feeding. When the material feed mass reaches the coarse feed mass, feeding is reduced to low frequency. When the total feed mass is reached, the variable frequency motor is stopped, the belt conveyor stops, and the feeding process is complete.
[0017] The beneficial effects of this utility model are:
[0018] 1. This utility model is designed with a large-opening bottom discharge port and stepless adjustment of the bottom door opening. During the commissioning period, the discharge flow rate can be adjusted and controlled by setting the bottom door opening limit. Furthermore, each bin discharges material in sequence, which can accurately control the accuracy of feeding and metering.
[0019] 2. In the batching process, this utility model adopts a metering mode of unloading coarse and fine feeding combined with belt bucket scale coarse and fine feeding, which can control the metering accuracy within ±1%.
[0020] 3. The arch-breaking screw is configured to solve the technical problems of high material viscosity, poor material feeding, and inability to achieve accurate batching and metering;
[0021] 4. Adopting a continuous metering mode, by controlling the start and stop of the batching machine, the material mass in the belt bucket scale is always greater than or equal to the set storage mass, meeting the feeding flow adjustment requirements within the set time range, thereby controlling the continuity of the belt feeding material layer, and controlling the material feeding flow by adjusting the belt conveyor operating frequency. Attached Figure Description
[0022] Figure 1 This is a front view of the intelligent dewatered aggregate batching machine described in this embodiment of the utility model;
[0023] Figure 2 This is a side view of the intelligent dewatered aggregate batching machine described in this embodiment of the utility model;
[0024] Figure 3 This is a top view of the intelligent dewatered aggregate batching machine described in this embodiment of the utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] 01. Hopper; 02. Arch-breaking screw conveyor; 03. Heavy-duty motor; 04. Hydraulic cylinder; 05. Hopper bottom door; 06. Weighing hopper; 07. Belt conveyor; 08. Pressure reducing plate; 09. Belt electronic scale. Detailed Implementation
[0027] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0028] Example:
[0029] A type of intelligent batching machine for dewatered aggregates, such as Figures 1-3 As shown, the frame is equipped with two hoppers 01, each with a double-leaf bottom door 05 at its bottom. A hydraulic cylinder 04, which drives the bottom door 05, is hinged to the side wall of each hopper 01. The hydraulic station of the hydraulic cylinder 04 is equipped with an accumulator to control the extension and retraction speed of the hydraulic rod. To make the bottom door easier to open and close, the torque exerted by the hydraulic cylinder on the bottom door is reduced, and the bottom door can be a rotary type. The bottom door 05 has multiple opening limits, including a fully open limit, a middle limit, a precise metering middle limit, and a fully closed limit. Specifically, the bottom door 05 of the hopper 01 adopts... The double-opening design controls the opening degree of both sides of the double-opening bottom door 05 to achieve corresponding door opening limits. The specific opening limit value can be set according to the actual material feeding situation during the commissioning period to meet the usage requirements of different material feeding flows. A belt bucket scale is installed below the hopper 01. The belt bucket scale mainly consists of a belt conveyor 07, a weighing bucket 06 on the belt conveyor 07, and a three-point pressure sensor weighing scale at the bottom of the belt conveyor 07 (a tension sensor weighing scale can also be selected). The drive mechanism of the belt conveyor 07 is a variable frequency motor equipped with a brake.
[0030] In another embodiment, such as Figure 1 As shown, the hopper 01 is equipped with an arch-breaking screw 02. One or more screws can be installed as needed. A heavy-duty motor 03 is installed on the frame to drive the arch-breaking screw 02 to rotate. The heavy-duty motor 03 is driven by jogging or continuous operation. The jogging mode is controlled by a settable running time. Through the agitation of the arch-breaking screw 02, the technical problems of high material viscosity, poor material discharge, and inability to achieve accurate batching and metering are solved.
[0031] In another embodiment, such as Figure 2 As shown, the belt bucket scale has a pressure reducing plate 08 inside the bucket 06. The extension direction of the pressure reducing plate 08 is parallel to the transmission direction of the belt conveyor 07, which can reduce the load of the material on the belt conveyor 07.
[0032] In another embodiment, such as Figure 1 As shown, the unloading end of the belt conveyor 07 is equipped with a belt electronic scale 09.
[0033] The batching principle of this intelligent dehydrated aggregate batching machine is as follows:
[0034] The system employs a two-stage metering system with coarse and fine weighing. A total weighing mass and a coarse weighing mass are set. At the start of metering, the bottom door 05 is either fully open or at the middle limit. When the material quantity in the weighing hopper 06 is greater than or equal to the coarse weighing mass, the bottom door 05 is closed slightly to the fine weighing middle limit, and feeding continues until the total weighing mass is reached. The bottom door 05 is then closed to the closing limit. Simultaneously, a hopper-by-hopper feeding and cumulative metering method is adopted. First, the bottom door 05 of hopper 1 is opened. After the set weighing mass is reached, the bottom door 05 is closed. Then, the bottom door 05 of hopper 2 is opened. Metering is completed when the set total material quantity is reached. The belt-driven bucket scale uses a coarse and fine weighing feed mode. A total feeding mass and a coarse feeding mass are set. The belt conveyor 07 uses high and low frequency, fast and slow feeding. The variable frequency motor is equipped with a brake. Feeding begins with high-frequency, fast feeding. When the material feeding mass reaches the coarse feeding mass, feeding is reduced to low frequency. When the total feeding mass is reached, the variable frequency motor is stopped, and the belt conveyor 07 stops operating, completing the feeding process.
[0035] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A smart batching machine for dewatered aggregates, characterized in that, The frame is equipped with at least two hoppers, each of which has a double-leaf bottom door at its bottom. A hydraulic cylinder that drives the bottom door to open and close is hinged to the side wall of the hopper. The bottom door has multiple opening limits, including a fully open limit, at least one intermediate limit, and a fully closed limit. A belt bucket scale is installed below the hopper.
2. The intelligent batching machine for dewatered aggregates according to claim 1, characterized in that, The hydraulic station of the hydraulic cylinder is equipped with an accumulator.
3. The intelligent batching machine for dewatered aggregates according to claim 1, characterized in that, The hopper is equipped with an arch-breaking screw, and a heavy-duty motor that drives the arch-breaking screw to rotate is mounted on the frame.
4. The intelligent batching machine for dewatered aggregates according to claim 3, characterized in that, The heavy-duty motor is driven by either inching or continuous operation.
5. The intelligent batching machine for dewatered aggregates according to claim 1, characterized in that, The belt bucket scale mainly consists of a belt conveyor, a weighing bucket on the belt conveyor, and a weighing scale at the bottom of the belt conveyor.
6. The intelligent batching machine for dewatered aggregates according to claim 5, characterized in that, The weighing scale is a three-point pressure sensor weighing scale or a tension sensor weighing scale.
7. The intelligent batching machine for dewatered aggregates according to claim 5, characterized in that, The drive mechanism of the belt conveyor is a variable frequency motor equipped with a brake.
8. The intelligent batching machine for dewatered aggregates according to claim 5, characterized in that, The belt bucket scale has a pressure-reducing plate inside the bucket, and the extension direction of the pressure-reducing plate is parallel to the transmission direction of the belt conveyor.
9. The intelligent batching machine for dewatered aggregates according to claim 5, characterized in that, The conveyor belt is equipped with an electronic scale at the unloading end.
10. The intelligent batching machine for dewatered aggregates according to claim 1, characterized in that, The bottom door of the warehouse is a rotating type.