Accurate dosing machine for dehydrated viscous fine aggregate

Abstract

The utility model discloses an accurate dosing machine for dehydrated viscous fine aggregate. The accurate dosing machine comprises a rack, a storing and discharging system and a metering and feeding system, the material storing and discharging system comprises a material storing hopper, a scattering assembly and a discharging door, the material storing hopper is arranged at the top of the rack, the scattering assembly comprises reamers, a driving shaft and a rotating motor, the driving shaft is rotationally arranged in the middle of the material storing hopper, the rotating motor is arranged on the rack, and the reamers are arranged on the driving shaft at intervals; the discharge door is arranged at the bottom of the storage hopper; a storage weighing sensor of the storage hopper is arranged on the rack; the metering feeding system comprises a metering bin and a belt conveyor arranged at the bottom of the metering bin, a belt motor is arranged on one side of the belt conveyor, and a metering weighing sensor is arranged at the bottom of the belt conveyor. According to the accurate dosing machine for the dehydrated viscous fine aggregate, on the basis of eliminating material arching, feeding is continuous and stable, and metering is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine solid waste filling technical field especially relates to a dehydration sticky fine aggregate precision batching machine. BACKGROUND

[0002] At present, it is used by a large number of mines because dehydration tailings has many advantages such as convenient stockpiling, flexible filling work system, can configure the limit filling slurry concentration according to the filling slurry characteristics of being able to transport and so on.But, because the grain size of tailings is fine, the dehydration tailings filter cake is sticky, and when storing in the storage hopper of batching machine, it is easy to be arched, which leads to unsmooth discharge and discontinuous feeding, inaccurate measurement. CONTENT OF UTILITY MODEL

[0003] In view of the above problem, the utility model provides a dehydration sticky fine aggregate precision batching machine, on the basis of eliminating material arching, continuous and stable feeding, more accurate measurement.

[0004] The technical scheme of the utility model is as follows:

[0005] A dehydration sticky fine aggregate precision batching machine, characterized by comprising a rack, a storage and discharge system and a metering and feeding system.

[0006] The storage and discharge system comprises a storage hopper, a scattering assembly and a discharge door, the storage hopper is arranged on the top of the rack, the scattering assembly comprises a reamer, a driving shaft and a rotary motor, the driving shaft is transversely arranged through the middle part of the storage hopper, the rotary motor is arranged on the rack and is drivingly connected with the driving shaft, and the reamers are arranged on the driving shaft at intervals; the discharge door is hingedly arranged on the bottom of the storage hopper, and the bottom of the storage hopper is further provided with a driving member for driving the discharge door to open and close.

[0007] The metering and feeding system comprises a metering bin and a belt conveyor arranged at the bottom of the metering bin, one side of the belt conveyor is provided with a belt motor, and the metering bin and the bottom of the belt conveyor are integrally provided with a metering and weighing sensor.

[0008] In a further technical scheme, the scattering assembly comprises two groups arranged in parallel, and the reamers of the two groups of scattering assemblies are arranged in a staggered or aligned manner.

[0009] In a further technical scheme, the reamer is fixedly connected to the driving shaft by a clamp.

[0010] In a further technical scheme, the reamer is rod-shaped, sheet-shaped, plow-shaped or sickle-shaped.

[0011] In a further technical scheme, the discharge door comprises two, which are symmetrically hingedly arranged on the two sides of the bottom of the storage hopper respectively, the discharge door is controlled to open and close by the driving member, the driving member comprises a supporting rod and a cylinder body, and the cylinder body is a pneumatic cylinder or an oil cylinder.

[0012] In a further technical solution, the rack is provided with a storage hopper.

[0013] In a further technical solution, the belt conveyor is provided with a belt sweeper at the discharging end.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. The storage hopper of the device is used to store materials, the discharge door is used to open and cut off the material flow, the reamer can scatter and cut the caked and sticky materials, and also plays a role in controlling the material flow. When the material discharging is not smooth, starting the scattering and discharging reamer can eliminate the material arching effect and realize smooth discharging. The metering and weighing sensor under the metering bin can be used to measure the material discharging in the storage hopper to select whether to open the reamer. After reaching the specified discharging amount, the discharge door is closed to realize periodic feeding measurement operation. On the basis of eliminating material arching, the feeding is continuous and stable, and the measurement is more accurate. In addition, the metering and weighing sensor can be used to monitor the material quality on the belt conveyor during continuous measurement, the belt motor speed is adjusted to control the feeding quality flow, the material thickness on the belt conveyor is maintained, and continuous and stable feeding is realized.

[0016] 2. The reamer of the two groups of scattering assemblies cooperates to scatter and cut the caked materials, and the efficiency is higher.

[0017] 3. The reamer is fixed on the driving shaft by a hoop, the distance between the reamers can be adjusted according to the viscosity or blockiness of the materials, and the discharging quality flow is controlled.

[0018] 4. The belt sweeper can sweep the materials adhered to the belt. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a front view schematic diagram of the dehydrated sticky fine aggregate precise batching machine according to the embodiment of the present application;

[0020] Figure 2 is a top view schematic diagram of the dehydrated sticky fine aggregate precise batching machine according to the embodiment of the present application;

[0021] Figure 3 is a schematic diagram of the opening of the discharge door according to the embodiment of the present application;

[0022] Figure 4 is a schematic diagram of the closing of the discharge door according to the embodiment of the present application.

[0023] MARKING DESCRIPTION:

[0024] 10. Frame; 20. Storage hopper; 31. Reamer; 32. Drive shaft; 33. Rotary motor; 34. Clamp; 40. Discharge gate; 41. Support rod; 42. Cylinder; 50. Storage weighing sensor; 60. Metering bin; 61. Material layer thickness adjustment gate; 70. Belt conveyor; 71. Belt motor; 72. Metering weighing sensor; 73. Belt cleaner. Detailed Implementation

[0025] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0026] Example:

[0027] like Figures 1-4 As shown, a precision batching machine for dewatered viscous fine aggregates includes a frame 10, a material storage and unloading system, and a metering and feeding system.

[0028] The material storage and unloading system includes a storage hopper 20, a dispersing assembly, and an unloading gate 40. The storage hopper 20 is located on the top of the frame 10. The dispersing assembly may include two parallel sets, each consisting of a reamer 31, a drive shaft 32, and a rotary motor 33. The drive shaft 32 is laterally rotatable through the middle of the storage hopper 20. The rotary motor 33 is mounted on the frame 10 and is connected to the drive shaft 32. The reamers 31 are spaced apart on the drive shaft 32. The reamers 31 of the two sets of dispersing assemblies are staggered or aligned. The reamers 31 can be any of the following shapes: rod-shaped, plate-shaped, plow-shaped, or sickle-shaped. The unloading gate 40 includes two gates, which are symmetrically hinged to the bottom sides of the storage hopper 20 for unloading. The material gate 40 is controlled to open and close by a drive unit, which consists of a support rod 41 and a cylinder 42. The cylinder 42 can be either a pneumatic cylinder or a hydraulic cylinder. The support rod 41 is obliquely mounted on the outer wall of the storage hopper 20 at the top of the unloading gate 40 and extends from top to bottom in a direction away from the storage hopper 20. One end of the cylinder 42 is hinged to the end of the support rod 41, and the other end is hinged to the side of the unloading gate 40 away from the unloading hopper. The opening and closing of the unloading gate 40 is achieved by the extension and retraction of the cylinder 42. The frame 10 is equipped with a storage weighing sensor 50 for the storage hopper 20. The storage weighing sensor 50 is also electrically connected to an audible and visual alarm. When the storage amount is less than the set value, the control system emits a material feeding prompt signal.

[0029] The metering and feeding system includes a metering bin 60 and a belt conveyor 70 located at the bottom of the metering bin 60. A belt motor 71 is provided on one side of the belt conveyor 70, and a metering and weighing sensor 72 is provided at the bottom of both the metering bin 60 and the belt conveyor 70.

[0030] Both the rotary motor 33 and the belt motor 71 can be variable frequency motors, which make it easy to adjust the speed. The two rotary motors 33 can run at the same speed or at a different speed relative to each other, or run in opposite directions. They can be set to run periodically, inching or continuously to eliminate material sticking to the shaft or arching.

[0031] The working principle of the above technical solution is as follows:

[0032] When this device is used in a periodic metering system, the storage weighing sensor 50 monitors the material mass in the storage hopper 20, keeping the material mass above a set threshold to maintain continuous unloading and metering. The unloading gate 40 is opened, and the material in the storage hopper 20 enters the metering chamber 60. The storage weighing sensor 50 monitors the unloading amount. When the unloading amount is below a set threshold, the storage weighing sensor 50 transmits an electrical signal to start the reamer 31 to rotate. When the unloading flow rate is above a set threshold, the reamer 31 stops rotating. When the material mass in the metering chamber 60 reaches the set metering value, the reamer 31 first stops rotating, then the unloading gate 40 is closed, completing this periodic metering. After the next stage of the previous cycle is completed, the belt conveyor 70 transports the material from the metering chamber 60 to the next stage. During the material feeding process, the remaining mass in the metering chamber 60 is monitored. The weighing method is used to achieve precise control of the material mass in the metering chamber 60, eliminating feeding and metering errors caused by the delay in closing the unloading gate 40 and uncontrolled unloading from the storage hopper 20. This cycle continues in this manner.

[0033] When the device is used in a continuous metering system, the storage weighing sensor 50 monitors the material mass in the storage hopper 20, maintains the material mass above a set threshold, and sustains continuous unloading and metering operations. When the unloading gate 40 is opened, the material in the storage hopper 20 enters the metering chamber 60. The metering weighing sensor 72 monitors the unloading amount. When the unloading amount is lower than the set threshold, the metering weighing sensor 72 transmits an electrical signal to start the reamer 31 to rotate. When the unloading flow rate is higher than the set threshold, the reamer 31 stops rotating. When the material mass in the metering chamber 60 reaches the set metering value, the reamer 31 first stops rotating. The metering weighing sensor 72 detects the material mass flow rate on the belt conveyor 70 and controls the feeding mass flow rate by starting and adjusting the speed of the belt motor 71. By storing material in the storage hopper 20, a stable source of material for continuous feeding is ensured. By controlling the quality of the material discharged from the storage hopper 20 into the metering bin 60, the thickness of the mud layer of material on the belt conveyor 70 of the metering bin 60 is always maintained. This solves the technical problems of excessive material storage, material agglomeration and arching, and unstable material feeding in the metering bin 60, and achieves the goal of continuous and stable feeding of viscous materials through the belt conveyor 70.

[0034] In another embodiment, such as Figures 1-2 As shown, the reamer 31 is fixedly connected to the drive shaft 32 by the clamp 34.

[0035] The spacing of the reamers 31 can be adjusted according to the viscosity or size of the material to control the unloading mass flow rate.

[0036] In another embodiment, such as Figure 1 As shown, a belt cleaner 73 is provided at the material discharge end of the belt conveyor 70.

[0037] The belt sweeper 73 can sweep the material adhered to the belt.

[0038] In another embodiment, as shown in Figure 1 The metering bin 60 is provided with a material layer thickness adjusting door 61 which can be adjusted up and down on the side of the belt conveyor 70.

[0039] The material layer thickness adjusting door 61 can control the material layer thickness of the belt feeding, that is, control the mass flow of the feeding.

[0040] The above embodiments only express the specific implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A precision batching machine for dewatered viscous fine aggregates, characterized in that, This includes the frame, material storage and unloading system, and metering and feeding system; The material storage and unloading system includes a storage hopper, a dispersing assembly, and a discharge gate. The storage hopper is located at the top of the frame. The dispersing assembly includes a reamer, a drive shaft, and a rotary motor. The drive shaft extends laterally through the middle of the storage hopper. The rotary motor is mounted on the frame and is connected to the drive shaft. The reamers are spaced apart on the drive shaft. The discharge gate is hinged to the bottom of the storage hopper. The bottom of the storage hopper is also equipped with a drive unit for opening and closing the discharge gate. The metering and feeding system includes a metering bin and a belt conveyor located at the bottom of the metering bin. A belt motor is provided on one side of the belt conveyor, and a metering and weighing sensor is provided at the bottom of both the metering bin and the belt conveyor.

2. The precision batching machine for dewatered viscous fine aggregates according to claim 1, characterized in that, The disintegration assembly comprises two sets arranged in parallel, with the reamers of the two sets of disintegration assemblies arranged in an alternating or aligned manner.

3. The precision batching machine for dewatered viscous fine aggregates according to claim 2, characterized in that, The reamer is fixedly connected to the drive shaft by a clamp.

4. The precision batching machine for dewatered viscous fine aggregates according to claim 3, characterized in that, The reamer is rod-shaped, plate-shaped, plow-shaped, or sickle-shaped.

5. The precision batching machine for dewatered viscous fine aggregates according to claim 1, characterized in that, The unloading gate includes two gates, which are symmetrically hinged to the bottom of the storage hopper on both sides. The unloading gate is controlled to open and close by a drive component, which includes a support rod and a cylinder body, and the cylinder body is a pneumatic cylinder or a hydraulic cylinder.

6. The precision batching machine for dewatered viscous fine aggregates according to claim 1, characterized in that, The frame is equipped with a material storage hopper and a material weighing sensor.

7. The precision batching machine for dewatered viscous fine aggregates according to claim 1, characterized in that, The belt conveyor is equipped with a belt cleaner at the material discharge end.

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