Detection device for feeding amount of solid material

Abstract

The utility model discloses a solid material feed quantity detection device, which relates to the technical field of metering detection equipment, and comprises a feed chute 3, a feed turning plate 5, a feed turning plate shaft 4 and a pair of feed turning plate shaft bearing seats 1, the feed turning plate shaft bearing seats 1 are arranged on the outer sides of two side plates of the feed chute 3, and the feed turning plate shaft bearing seats 1 are arranged on the outer sides of the two side plates of the feed chute 3. The feeding turning plate shaft 4 is arranged in the two feeding turning plate shaft bearing seats 1 in a penetrating manner; the feeding turning plate 5 is arranged on the feeding turning plate shaft 4 at the inner cavity section of the feeding chute 3; the device further comprises a tilt angle sensor assembly, and the tilt angle sensor assembly is installed on the outer side face of the feeding turning plate 5. The device has the advantages of being simple in structure, safe to use, suitable for online threshold value detection of solid material flow, capable of further controlling automatic production of equipment and the like, and is used in cooperation with equipment such as a sand making machine, a Raymond mill, a roller press and a ball mill. The method can be used for mineral separation, powder preparation or preparation of building sand from various non-metal ores, mine tailings, industrial waste residues and other raw materials meeting sand making requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of metering and detection equipment, in particular to a device for detecting the feeding amount of solid materials. Background Art

[0002] In the prior art, many processing equipment in industries such as machine-made sand and mineral processing need to detect the feed rate in order to control the equipment. At present, for the flow measurement of solid materials, punch plate flowmeters, volumetric flowmeters, electronic belt scales, etc. are usually used to implement online continuous measurement of the flow of various solid materials. Although the purpose of online continuous measurement can be achieved, these devices are complex, large in size, require high installation locations, are expensive, and have high maintenance costs. Especially when they are used to detect only the approximate range of material flow (i.e., flow threshold), they are not popular because they are too high-end.

[0003] The Chinese patent (patent application number 201610407658.3) discloses a "flow detection device for solid material transportation and its flow detection method". The base of the detection device is installed on the conveying equipment, and the rocker arm is fixedly connected to the baffle above the conveying equipment. The lower edge of the baffle naturally droops and maintains a safe distance from the upper layer of the conveying equipment. The rocker arm is fixedly connected to the beam, and the beam is supported by the beam bracket and can rotate freely. The other end of the beam is connected to the angle sensor. The solid material pushes the baffle to drive the beam to rotate, generating an angular displacement, thereby realizing the conversion of the stacking height of the solid material on the conveying equipment into an electrical signal of angle change for flow detection.

[0004] Another Chinese patent (patent application number 202011403050.6) discloses a “powder flow detection device and method”, comprising: a powder feeder (1), a powder feeding tube (2), a laser (3), an optical transmission channel (4), a square tube (5), an optical detector (6) and an optical head (7); the powder feeder (1) is connected to the powder feeding tube (2); the powder feeding tube (2) is connected to the square tube (5); the square tube (5) is connected to the optical transmission channel (4); the optical transmission channel (4) is connected to the laser (3); the optical transmission channel (4) is connected to the optical detector (6); the optical head (7) is connected to the optical transmission channel (4).

[0005] There is also a Chinese patent (patent application number is 201720155636.2) disclosed in "An automatic feeding solid particle material adaptive flow detection system", including: a cavity shell, characterized in that: a feed port is provided at one end of the cavity shell, and a discharge port is provided at the other end, a metering chamber is provided between the feed port and the discharge port, a rotating impeller is provided in the metering chamber, the solid particle material at the feed port acts on the rotating impeller, and the rotating impeller performs passive rotation motion under the action of the gravity of the solid particle material.

[0006] There is also a Chinese patent (patent application number 202221876845.3) disclosed in a "material feed amount detection device", which includes a feed chute 1, a feed flap 5, a feed flap shaft 4, a feed flap shaft bearing seat 3, a Hall sensor 6 and a Hall sensor mounting plate 7; the feed flap shaft bearing seat 3 is arranged on the outer sides of the two side plates of the feed chute 1, the feed flap shaft 4 is inserted into the two feed flap shaft bearing seats 3, and the feed flap 5 is installed on the feed flap shaft 4 of the inner cavity section of the feed chute 1; the Hall sensor mounting plate 7 is installed on an outer side of the feed chute 1, and the Hall sensor 6 is installed on its lower part and the protruding end of the feed flap shaft 4.

[0007] There is also a Chinese patent (patent application number 202321149221.6) that discloses "a feeding device capable of monitoring the feed amount", including a silo and a vibrating plate; the silo includes a shell, a monitor, a conveyor belt and a bracket; the shell is arranged in a barrel shape, and a metering mark is arranged on the side wall of the shell, and a monitor is arranged at the upper edge of the shell, and the monitor is arranged opposite to the metering mark, and the monitor is electrically connected to the conveyor belt, and a bracket is also arranged at the bottom of the shell; the vibrating plate includes a conical cylinder and a motor; by arranging the silo, the monitor and the metering mark at the feed port, when the pulverized coal enters the boiler, the monitor monitors the amount of pulverized coal indicated by the metering mark, and then controls whether the conveyor belt continues to transport the pulverized coal, thereby achieving the function of monitoring and controlling the amount of pulverized coal, and by arranging the vibrating plate, the pulverized coal is shaken flat by the vibrating plate after entering the silo to ensure the accuracy of the detection. Summary of the invention

[0008] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a device with a simple structure, safe use, suitable for online threshold detection of solid (such as particles or powder) material flow (i.e., feed amount), and further controlling the automatic production of the equipment.

[0009] In order to solve the above technical problems, the technical solution adopted by the utility model is to design a solid material feed amount detection device: including a feed chute 3, a feed flap 5, a feed flap shaft 4 and a pair of feed flap shaft bearing seats 1, the feed flap shaft bearing seats 1 are arranged on the outer sides of the two side plates of the feed chute 3, the feed flap shaft 4 is inserted into the two feed flap shaft bearing seats 1, and the feed flap 5 is arranged on the feed flap shaft 4 of the inner cavity section of the feed chute 3; it also includes an inclination sensor assembly, and the inclination sensor assembly is installed on the outer side surface of the feed flap 5.

[0010] The inclination sensor assembly includes an inclination sensor 7 and an inclination sensor mounting plate 8 . The inclination sensor mounting plate 8 is vertically arranged on the outer side of the feed flap 5 , and the inclination sensor 7 is arranged on the inclination sensor mounting plate 8 .

[0011] A tilt sensor protection cover 6 covering the tilt sensor 7 is also provided on the tilt sensor mounting plate 8 .

[0012] A feed flap shaft bearing seat mounting plate 2 is also provided between the outer side surface of the feed chute 3 and the feed flap shaft bearing seat 1. The feed flap shaft bearing seat mounting plate 2 is installed on the outer side surface of the feed chute 3, and the feed flap shaft bearing seat 1 is installed on the feed flap shaft bearing seat mounting plate 2.

[0013] The solid material feed amount detection device of the utility model is provided with an inclination sensor on the sensor mounting plate outside the feed flap, and the inclination sensor contains one or more accelerometers inside, and the inclination angle of the object is determined by measuring the influence of gravity on the accelerometer. Since the installation accuracy requirement is low, and the inclination sensor protective cover is provided, and the measuring hardware itself is shock-resistant, it is used in harsh working environments, is dust-proof, vibration-resistant and shock-resistant, has good safety, and can guarantee the accuracy of measurement to the greatest extent.

[0014] When it is in use, the material will break open the feed flap for feeding, driving the feed flap to rotate around the axis, and then the inclination sensor installed on the outside of the feed flap will output a precise deflection angle signal. As the amount of material (i.e., flow) increases, the flap angle increases, and the analog output value of the inclination sensor becomes larger. When the value reaches the threshold set by the PLC program of the supporting equipment, the PLC program automatically switches to the corresponding working mode and performs automated production (i.e., enters a new working state); and when the amount of material entering (i.e., flow) is lower than the threshold set by the PLC program of the supporting equipment, the deflection angle of the feed flap shaft decreases. At this time, the output signal value of the inclination sensor will be lower than the threshold, prompting the PLC program of the supporting equipment to automatically switch and return to the original working state, thereby realizing automatic production of the control equipment. Because it uses a flap device, its structure is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the principle of the utility model;

[0016] Figure 2 It is a partial enlarged schematic cross-sectional view of the utility model along the AA axis.

[0017] In the figure:

[0018] 1 is the bearing seat of the feed flap shaft, 2 is the mounting plate of the feed flap shaft bearing seat, 3 is the feed chute, 4 is the feed flap shaft, 5 is the feed flap, 6 is the inclination sensor protective cover, 7 is the inclination sensor, and 8 is the mounting plate of the inclination sensor. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The following description is in the form of examples, but the protection scope of the present invention should not be limited thereto.

[0020] Embodiment 1:

[0021] The solid material feed amount detection device of this embodiment is composed of a feed chute 3, a feed flap 5, a feed flap shaft 4, a pair of feed flap shaft bearing seats 1, two pairs of feed flap shaft bearing seat mounting plates 2 and an inclination sensor assembly composed of an inclination sensor 7, an inclination sensor protective cover 6, and an inclination sensor mounting plate 8.

[0022] The cross-section of the feed chute 3 is rectangular, and the shape of the feed flap 5 matches the inner cavity cross-section (i.e., rectangle) of the feed chute 3. The feed flap shaft bearing seat mounting plates 2 are respectively installed on the outer side surfaces of both sides of the feed chute 3. A pair of feed flap shaft bearing seats 1 are respectively installed on the feed flap shaft bearing seat mounting plates 2 on both sides. The feed flap shaft 4 is inserted into the two feed flap shaft bearing seats 1, and the feed flap 5 is installed on the feed flap shaft 4 in the inner cavity section of the feed chute 3.

[0023] The inclination sensor mounting plate 8 is vertically arranged on the outer side surface of the feed flap 5 , and the inclination sensor 7 is arranged on the inclination sensor mounting plate 8 .

[0024] (The "tilt sensor" used can be the Huilian SIS426 dual-axis tilt sensor produced by Wuxi Huilian Technology or the SVT626T dual-axis tilt sensor produced by Wuxi Maike Sensing Technology Co., Ltd.).

[0025] The inclination sensor protection cover 6 is a hollow thin-walled cube with two "L"-shaped side surfaces removed. It is arranged on the outer side of the inclination sensor mounting plate 8 and the feed flap 5 and covers the inclination sensor 7. The contact edge with the inclination sensor mounting plate 8 and the feed flap 5 is provided with a folded edge (similar to a flange) for fixing it (screwed) on the inclination sensor mounting plate 8 and the feed flap 5.

[0026] The solid material feed amount detection device of this embodiment can be used in conjunction with ore dressing machines, sand making machines, Raymond mills, roller presses, ball mills and other equipment for sand making, powder making, ore dressing and the like.

[0027] Embodiment 2:

[0028] This embodiment is a special case when the solid material feed amount detection device is used in conjunction with a sand making machine, that is, it is arranged in the feed chute 3 in the intelligent sand making machine, and the output signal line of the inclination angle sensor 7 thereof is connected to the PLC controller in the intelligent sand making machine.

[0029] When in use, start the program of the electrical control cabinet of the intelligent sand making machine. According to the program setting of the electrical control cabinet, the reducer thin oil station of the intelligent sand making machine and the oil pump of the hydraulic system hydraulic station of the sand making machine are started first. When the oil pump is operating normally, the main motor of the intelligent sand making machine starts automatically, driving the reducer and the fixed roller connected to the reducer through a coupling to rotate. After normal operation, the hydraulic cylinder starts to automatically start pressurizing according to the PLC program setting of the intelligent sand making machine, pushing the spring push plate of the intelligent sand making machine and the movable roller connected to the spring push plate to move toward the fixed roller together. When the two rollers are lightly pressed, During micro-contact, the pressure is automatically increased to the set initial pressure (0.1-1.2MPa) so that the fixed roller can just drive the movable roller to make relative movement. After the two rollers of the sand making machine operate normally under the initial pressure, the PLC of the intelligent sand making machine gives a signal to automatically start the raw material conveyor and the discharge valve, and start feeding the material to the large hopper on the upper part of the intelligent sand making machine. The solid material in the large hopper pushes the feed flap 5 to rotate through the feed chute 3, driving the inclination sensor 7 arranged on the outside of the feed flap 5 to detect the deflection angle of the feed flap 5, and sense the amount of material fed into the large hopper through the feed chute 3.

[0030] As the feed flow rate increases, the deflection angle of the feed flap 5 increases, and the output analog value of the inclination sensor 7 increases. When the value exceeds the threshold, the PLC program of the intelligent sand making machine automatically switches to the sand making working mode for automated production. When the material supply is insufficient and the amount of material entering is reduced, the deflection angle of the feed flap 5 decreases, and the analog output signal value of the inclination sensor 7 decreases. When it is lower than the set threshold, the PLC program of the intelligent sand making machine automatically switches to the low-pressure sand making working mode, thereby solving the problem of excessive powder content in the finished product caused by excessive pressure, further ensuring the fineness modulus of the machine-made sand, and avoiding the sand making machine from being subjected to excessive impact loads when there is less material.

[0031] The solid material feed amount detection device of the utility model is used in conjunction with ore dressing machines, sand making machines, Raymond mills, roller presses, ball mills and other equipment, and can be used for ore dressing, powder making or preparing construction sand using various non-metallic ores, mine tailings, industrial waste slag and other raw materials that meet the sand making requirements.

Claims

1. A device for detecting the feeding amount of solid materials, comprising a feeding chute (3), a feeding flap (5), a feeding flap shaft (4) and a pair of feeding flap shaft bearing seats (1), wherein the feeding flap shaft bearing seats (1) are arranged on the outer sides of the two side plates of the feeding chute (3), the feeding flap shaft (4) is inserted into the two feeding flap shaft bearing seats (1), and the feeding flap (5) is arranged on the feeding flap shaft (4) of the inner cavity section of the feeding chute (3); characterized in that: It also comprises an inclination sensor assembly, which is mounted on the outer side of the feed flap (5).

2. The device for detecting the feeding amount of solid materials according to claim 1, characterized in that: The inclination sensor assembly comprises an inclination sensor (7) and an inclination sensor mounting plate (8); the inclination sensor mounting plate (8) is vertically arranged on the outer side surface of the feed flap (5); and the inclination sensor (7) is arranged on the inclination sensor mounting plate (8).

3. The device for detecting the feeding amount of solid materials according to claim 2, characterized in that: A tilt sensor protection cover (6) for covering the tilt sensor (7) is also provided on the tilt sensor mounting plate (8).

4. The device for detecting the feeding amount of solid materials according to claim 3, characterized in that: A feed flap shaft bearing seat mounting plate (2) is also provided between the outer side surface of the feed chute (3) and the feed flap shaft bearing seat (1); the feed flap shaft bearing seat mounting plate (2) is mounted on the outer side surface of the feed chute (3); and the feed flap shaft bearing seat (1) is mounted on the feed flap shaft bearing seat mounting plate (2).

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