Powder anti-blocking weighing device

Abstract

The utility model discloses a powder anti-blocking weighing device which comprises a steel frame, a scale hopper, a gravity sensor, a sensor support, a dustproof connecting sleeve, a sealing cover, a pressure relief dust removal structure, a vibration mechanism, a feeding auger, a discharging pipe, an exhaust pipe and a feeding pipe. The scale hopper is arranged in the middle of the steel frame, a plurality of gravity sensors are arranged on the periphery of the scale hopper, the upper end of each gravity sensor is connected with the scale hopper, and the lower end of each gravity sensor is fixedly supported through a sensor support arranged at the corresponding position on the steel frame. The periphery of the sealing cover is fixedly supported on the steel frame, an exhaust port is formed in the middle of the sealing cover, a pressure relief dust removal structure is arranged in the exhaust port, the feeding pipe is connected with a discharging port of the feeding auger for feeding, and a plurality of vibration mechanisms are arranged on the periphery of the outer side wall of the lower end of the scale hopper. The anti-blocking device is simple in structure, capable of preventing the scale hopper from being blocked, and good in anti-blocking effect.

Description

Technical Field

[0001] The utility model relates to the technical field of cementing powder weighing equipment, in particular to a powder anti-blocking weighing device. Background Art

[0002] At present, bucket scales are widely used in scenarios such as coal powder, fly ash, and mineral powder. In actual use, when bucket scales are used to process powder materials, the raw materials of cementing materials are all fine powders. Fine powders have strong adsorption strength and are easily adhered to the smooth discharge pipe and the inner wall of the scale bucket, resulting in reduced weighing accuracy of the bucket scale. In addition, the raw materials weighed in the scale bucket will also be blocked in the process of being discharged from the bottom of the scale bucket due to inconsistent air pressure in the discharge pipe, causing the powder scale bucket to increase, and dust concentration in the scale bucket will increase. In severe cases, dust explosions may occur. Utility Model Content

[0003] The present application provides a powder material anti-blocking weighing device, which solves the problem that the weighing bucket is easily blocked during the existing cementing powder material weighing process, resulting in inaccurate weighing and low safety.

[0004] The present application provides a powder material anti-blocking weighing device, including a steel frame, a weighing bucket, a gravity sensor, a sensor support, a dustproof connecting sleeve, a sealing cover, a pressure relief dust removal structure, a vibration mechanism, a feeding auger, a discharge pipe, an exhaust pipe, and a feeding pipe; the weighing bucket is arranged in the middle of the steel frame, and a plurality of gravity sensors are arranged around the weighing bucket, the upper end of each gravity sensor is connected to the weighing bucket, and the lower end is fixedly supported by the sensor support arranged at the corresponding position on the steel frame, a dustproof connecting sleeve is arranged above the weighing bucket, and the lower end of the dustproof connecting sleeve is connected to the weighing bucket. The upper ends of the weighing buckets are sealed together, the upper end of the dustproof connecting sleeve is sealed by a sealing cover arranged on the steel frame, an exhaust port is arranged in the middle of the sealing cover, the exhaust port is connected to the exhaust pipe, a pressure relief and dust removal structure is arranged in the exhaust pipe, a feeding port is arranged on the edge of the sealing cover, the feeding port is connected to an inclined feeding pipe, the feeding pipe is connected to the discharge port of the feeding auger for feeding, the lower end of the weighing bucket is connected to the discharge pipe, a discharge valve is arranged on the discharge pipe, and a plurality of vibration mechanisms are arranged around the outer side wall of the lower end of the weighing bucket.

[0005] In the above technical solution, the pressure relief and dust removal structure includes a dual-output shaft motor, an eccentric block, a filter cylinder, a dust filter bag, a spring, and a mounting plate. The mounting plate is coaxially sleeved in the exhaust pipe, and the bottom of the mounting plate is elastically supported on the inner wall of the exhaust pipe by multiple springs. A dual-output shaft motor is arranged in the middle of the upper part of the mounting plate, and two eccentric blocks are coaxially fixed on the two output shafts of the dual-output shaft motor. Mounting holes are provided on the mounting plate around the dual-output shaft motor, and a vertical filter cylinder is correspondingly arranged at the lower end of each mounting hole. The upper end of each filter cylinder is open and connected to the mounting hole, and a dust filter bag is sleeved on the outside of the filter cylinder.

[0006] In the above technical solution, the spring is a compression spring, and the upper end of each spring is elastically connected and fixed to a spring mounting seat 1 arranged at the bottom of the mounting plate, and the lower end is elastically connected and fixed to a spring mounting seat 2 correspondingly arranged on the inner wall of the exhaust pipe.

[0007] In the above technical solution, the filter cylinder is a cylindrical metal cylinder with side walls covered with sieve holes. The upper end of the filter cylinder is welded and fixedly connected to the bottom of the mounting plate. The dust filter bag is a cloth bag with an open upper end. The dust filter bag is sleeved on the outside of the filter cylinder from bottom to top, and the upper end of the dust filter bag is sealed and fastened to the outer wall of the upper end of the filter cylinder by a clamp.

[0008] In the above technical scheme, each of the vibration mechanisms includes a fixed plate, a cylinder, a first connecting rod, a second connecting rod, and a fixed rod; the fixed plate is fixed to the outer side wall of the lower end of the weighing bucket, the shell end of the cylinder is vertically hingedly connected to the hinge seat arranged at the corresponding position of the bottom of the outer end of the fixed plate, the telescopic end of the cylinder is provided with a vertical first connecting rod, the upper end of the first connecting rod is vertically hingedly connected to the telescopic end of the cylinder, a horizontal fixed rod is provided on one side of the first connecting rod, one end of the fixed rod is fixedly connected to the outer side wall of the weighing bucket, and the other end is vertically hingedly connected to the first connecting rod, a horizontal second connecting rod is provided at the lower end of the first connecting rod, one end of the second connecting rod is vertically hingedly connected to the first connecting rod, and the other end is suspended at a position close to the side wall of the weighing bucket.

[0009] In the above technical solution, the exhaust pipe and the feeding pipe are connected through a gas pipeline.

[0010] It can be seen from the above technical solutions that the present application provides a powder material anti-blocking weighing device.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model increases an exhaust port on the sealing cover on the top of the weighing bucket and connects the exhaust pipe, so that the high-pressure gas in the feeding pipe and the weighing bucket is discharged to the outside from the exhaust pipe in time, reduces the pressure difference between the inside of the weighing bucket and the outside, and prevents the powder entering the weighing bucket through the feeding pipe from clogging the feeding pipe and the weighing bucket; installs a pressure relief dust removal structure in the exhaust pipe, so that the dust mixed in the pressure relief gas is completely intercepted to prevent environmental pollution; installs a vibration mechanism at the lower end of the weighing bucket, and performs high-frequency knocking on the side wall of the weighing bucket through the vibration mechanism, so that the powder adhered to the inner wall of the weighing bucket is quickly separated from the material by vibration, and the weighing bucket is prevented from being blocked, and the weighing bucket has high weighing accuracy and good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of a powder material anti-blocking weighing device proposed by the utility model;

[0015] Figure 2 A schematic cross-sectional view of a pressure relief and dust removal structure of a powder material anti-blocking weighing device proposed by the utility model;

[0016] Figure 3 A schematic top view of the structure of the pressure relief and dust removal structure of a powder material anti-blocking weighing device proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the installation position of the vibration mechanism of the powder anti-blocking weighing device proposed by the utility model.

[0018] In the figure:

[0019] 1- Steel frame;

[0020] 2- weighing bucket;

[0021] 3- Gravity sensor;

[0022] 4-Sensor support;

[0023] 5-Dustproof connecting sleeve;

[0024] 6- Sealing cover;

[0025] 7-pressure relief dust removal structure; 71-dual output shaft motor; 72-eccentric block; 73-filter cylinder; 74-dust filter bag; 75-spring; 76-mounting plate; 77-spring mounting seat 1; 78-spring mounting seat 2; 761-mounting hole;

[0026] 8-vibration mechanism; 81-fixed plate; 82-cylinder; 83-first connecting rod; 84-second connecting rod; 85-fixed rod; 811-hinged seat;

[0027] 9-Feeding auger;

[0028] 10-discharge pipe; 101-discharge valve;

[0029] 11- Exhaust pipe;

[0030] 12-feeding pipe;

[0031] 13-Gas pipeline. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0033] See also Figure 1-4 A powder material anti-blocking weighing device comprises a steel frame 1, a weighing bucket 2, a gravity sensor 3, a sensor support 4, a dustproof connecting sleeve 5, a sealing cover 6, a pressure relief dust removal structure 7, a vibration mechanism 8, a feeding auger 9, a discharge pipe 10, an exhaust pipe 11, and a feeding pipe 12; the weighing bucket 2 is arranged in the middle of the steel frame 1, and a plurality of gravity sensors 3 are arranged around the weighing bucket 2, the upper end of each gravity sensor 3 is connected to the weighing bucket 2, and the lower end is fixedly supported by the sensor support 4 arranged at the corresponding position on the steel frame 1, a dustproof connecting sleeve 5 is arranged above the weighing bucket 2, and the lower end of the dustproof connecting sleeve 5 is connected to the weighing bucket 2 are sealed together, the upper end of the dust-proof connecting sleeve 5 is sealed by a sealing cover 6 arranged on the steel frame 1, an exhaust port is arranged in the middle of the sealing cover 6, the exhaust port is connected to the exhaust pipe 11, and a pressure relief and dust removal structure 7 is arranged in the exhaust pipe 11, a feeding port is arranged on the edge of the sealing cover 6, the feeding port is connected to an inclined feeding pipe 12, the feeding pipe 12 is connected to the discharge port of the feeding auger 9 for feeding, the lower end of the weighing bucket 2 is connected to the discharge pipe 10, a discharge valve 101 is arranged on the discharge pipe 10, and a plurality of vibration mechanisms 8 are arranged around the outer side wall of the lower end of the weighing bucket 2.

[0034] In the above embodiment, an exhaust port is added to the sealing cover 6 on the top of the weighing bucket 2 and connected to the exhaust pipe 11, so that the high-pressure gas in the feeding pipe 12 and the weighing bucket 2 is discharged to the outside from the exhaust pipe 11 in time, thereby reducing the pressure difference between the inside of the weighing bucket 2 and the outside, and preventing the feeding pipe 12 from entering the weighing bucket 2 and clogging the feeding pipe 12 and the weighing bucket 2. By installing a pressure relief dust removal structure 7 in the exhaust pipe 11, the dust mixed in the pressure relief gas is completely intercepted to prevent environmental pollution. By installing a vibration mechanism 8 at the lower end of the weighing bucket 2, the side wall of the weighing bucket 2 is struck at a high frequency by the vibration mechanism 8, so that the powder adhering to the inner wall of the weighing bucket 2 is quickly separated from the discharge due to vibration, thereby preventing the weighing bucket from being blocked.

[0035] In the above embodiments, see Figure 1 , 23. The pressure relief and dust removal structure 7 includes a dual-output shaft motor 71, an eccentric block 72, a filter cylinder 73, a dust filter bag 74, a spring 75, and a mounting plate 76. The mounting plate 76 is coaxially sleeved in the exhaust pipe 11. The bottom of the mounting plate 76 is elastically supported on the inner wall of the exhaust pipe 11 by multiple springs 75. The dual-output shaft motor 71 is arranged in the middle of the upper part of the mounting plate 76. Two eccentric blocks 72 are coaxially fixed on the two output shafts of the dual-output shaft motor 71. Mounting holes 761 are provided on the mounting plate 76 around the dual-output shaft motor 71. A vertical filter cylinder 73 is correspondingly arranged at the lower end of each mounting hole 761. The upper end of each filter cylinder 73 is open and communicated with the mounting hole 761. A dust filter bag 74 is sleeved on the outside of the filter cylinder 73.

[0036] In the above embodiments, see Figure 1 , 2 3. The springs 75 are compression springs, and the upper end of each spring 75 is elastically connected and fixed to a spring mounting seat 1 77 provided at the bottom of the mounting plate 76 , and the lower end is elastically connected and fixed to a spring mounting seat 2 78 correspondingly provided on the inner wall of the exhaust pipe 11 .

[0037] In the above embodiments, see Figure 1 , 2 3. The filter cylinder 73 is a cylindrical metal cylinder with side walls covered with sieve holes. The upper end of the filter cylinder 73 is welded and fixedly connected to the bottom of the mounting plate 76. The dust filter bag 74 is a cloth bag with an open upper end. The dust filter bag 74 is sleeved on the outside of the filter cylinder 73 from bottom to top. The upper end of the dust filter bag 74 is sealed and fastened to the outer wall of the upper end of the filter cylinder 73 by a clamp 79.

[0038] In the above embodiments, see Figure 1 , 4Each of the vibration mechanisms 8 includes a fixed plate 81, a cylinder 82, a first connecting rod 83, a second connecting rod 84, and a fixed rod 85; the fixed plate 81 is fixed to the outer side wall of the lower end of the weighing bucket 2, the cylinder 82 is horizontally arranged at the bottom of the fixed plate 81, the telescopic end of the cylinder 82 is telescopically arranged toward the side wall of the weighing bucket 2, the shell end of the cylinder 82 is vertically hingedly connected to the hinge seat 811 arranged at the corresponding position of the bottom of the outer end of the fixed plate 81, the telescopic end of the cylinder 82 is arranged with a vertical first connecting rod 83, the upper end of the first connecting rod 83 is vertically hingedly connected to the telescopic end of the cylinder 82, a horizontal fixed rod 85 is arranged on one side of the first connecting rod 82, one end of the fixed rod 85 is fixedly connected to the outer side wall of the weighing bucket 2, and the other end is vertically hingedly connected to the first connecting rod 83, a horizontal second connecting rod 84 is arranged at the lower end of the first connecting rod 83, one end of the second connecting rod 84 is vertically hingedly connected to the first connecting rod 83, and the other end is suspended at a position close to the side wall of the weighing bucket 2.

[0039] In the above embodiments, see Figure 1 The exhaust pipe 11 is connected to the feeding pipe 12 through a gas pipeline 13, so that the high-pressure gas in the feeding pipe 12 directly enters the exhaust pipe 11 to prevent the pressure difference between the feeding pipe 12 and the weighing bucket 2.

[0040] In the above embodiment, the air inlet and the air outlet of the air cylinder 82 are connected to the air pump through an air pipe and a solenoid valve for air supply.

[0041] It can be seen from the above technical solution that when in use, the controller controls the feeding auger 9 to add powder into the feeding pipe 12, the material in the feeding pipe 12 enters the weighing bucket 2, the space in the weighing bucket 2 becomes smaller, the gas pressure increases, and the high-pressure gas dust enters the exhaust pipe 11 upward, the gas passes through the dust filter bag 74 and enters the filter cylinder 73, and then is discharged from the installation hole 761 into the gas collection pipeline to meet the emission standards, the dust adheres to the outside of the dust filter bag 74, the dual output shaft motor 71 runs, and drives the installation plate 76 to move up and down in the exhaust pipe 11, through the spring The elastic support 75 generates vibration, so that the dust material adhered to the dust filter bag 74 falls off and flows back into the weighing bucket 2. After weighing is completed, when the discharge valve 101 of the weighing bucket 2 is opened to discharge the material, at the same time, the controller controls the cylinder 83 to drive its telescopic shaft to extend and retract at a high frequency. The telescopic shaft of the cylinder 83 drives the upper end of the first connecting rod 83 to swing back and forth with the fixed rod 85 as the axis, driving the second connecting rod 84 to move back and forth to hit the outer wall of the weighing bucket 2, so that the powder material adhered to the inner wall of the weighing bucket 2 quickly breaks away from the weighing bucket 2 and is discharged, thereby increasing the discharge speed and preventing the weighing bucket 2 from being blocked.

[0042] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope of the present application is indicated by the claims.

[0043] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A powder material anti-blocking weighing device, characterized in that: The invention comprises a steel frame (1), a weighing bucket (2), a gravity sensor (3), a sensor support (4), a dustproof connecting sleeve (5), a sealing cover (6), a pressure relief dust removal structure (7), a vibration mechanism (8), a feeding auger (9), a discharge pipe (10), an exhaust pipe (11), and a feeding pipe (12); the weighing bucket (2) is arranged in the middle of the steel frame (1); a plurality of gravity sensors (3) are arranged around the weighing bucket (2); the upper end of each gravity sensor (3) is connected to the weighing bucket (2), and the lower end is fixedly supported by a sensor support (4) arranged at a corresponding position on the steel frame (1); a dustproof connecting sleeve (5) is arranged above the weighing bucket (2); and the lower end of the dustproof connecting sleeve (5) is connected to the weighing bucket (2). The upper ends of the weighing bucket (2) and the weighing hopper (2) are sealed together, the upper end of the dustproof connecting sleeve (5) is sealed by a sealing cover (6) arranged on the steel frame (1), an exhaust port is arranged in the middle of the sealing cover (6), the exhaust port is connected to the exhaust pipe (11), a pressure relief dust removal structure (7) is arranged in the exhaust pipe (11), a feeding port is arranged on the edge of the sealing cover (6), the feeding port is connected to an inclined feeding pipe (12), the feeding pipe (12) is connected to the discharge port of the feeding auger (9) for feeding, the lower end of the weighing bucket (2) is connected to the discharge pipe (10), a discharge valve (101) is arranged on the discharge pipe (10), and a plurality of vibration mechanisms (8) are arranged around the outer wall of the lower end of the weighing bucket (2).

2. A powder material anti-blocking weighing device according to claim 1, characterized in that: The pressure relief dust removal structure (7) comprises a dual-output shaft motor (71), an eccentric block (72), a filter cylinder (73), a dust filter bag (74), a spring (75), and a mounting plate (76). The mounting plate (76) is coaxially sleeved in the exhaust pipe (11). The bottom of the mounting plate (76) is elastically supported on the inner wall of the exhaust pipe (11) by a plurality of springs (75). The dual-output shaft motor (71) is arranged in the middle of the upper part of the mounting plate (76). Two eccentric blocks (72) are coaxially fixed on the two output shafts of the dual-output shaft motor (71). Mounting holes (761) are provided on the mounting plate (76) around the dual-output shaft motor (71). A vertically arranged filter cylinder (73) is correspondingly arranged at the lower end of each mounting hole (761). The upper end of each filter cylinder (73) is open and communicated with the mounting hole (761). A dust filter bag (74) is sleeved on the outside of the filter cylinder (73).

3. A powder material anti-blocking weighing device according to claim 2, characterized in that: The springs (75) are compression springs, and the upper end of each spring (75) is elastically connected and fixed to a spring mounting seat 1 (77) provided at the bottom of the mounting plate (76), and the lower end is elastically connected and fixed to a spring mounting seat 2 (78) correspondingly provided on the inner side wall of the exhaust pipe (11).

4. A powder material anti-blocking weighing device according to claim 2, characterized in that: The filter cylinder (73) is a cylindrical metal cylinder with side walls covered with sieve holes. The upper end of the filter cylinder (73) is welded and fixedly connected to the bottom of the mounting plate (76). The dust filter bag (74) is a cloth bag with an open upper end. The dust filter bag (74) is sleeved on the outside of the filter cylinder (73) from bottom to top. The upper end of the dust filter bag (74) is sealed and fastened to the outer wall of the upper end of the filter cylinder (73) through a clamp (79).

5. A powder material anti-blocking weighing device according to claim 1, characterized in that: Each of the vibration mechanisms (8) comprises a fixed plate (81), a cylinder (82), a first connecting rod (83), a second connecting rod (84), and a fixed rod (85); the fixed plate (81) is horizontally fixed to the outer side wall of the lower end of the weighing bucket (2); a cylinder (82) is arranged at the bottom of the fixed plate (81); a shell end of the cylinder (82) is vertically hingedly connected to a hinge seat (811) arranged at a corresponding position at the bottom of the outer end of the fixed plate (81); a vertically arranged first connecting rod (83) is arranged at the telescopic end of the cylinder (82); and the second connecting rod (84) is arranged at the bottom of the fixed plate (81). The upper end of a connecting rod (83) is vertically hingedly connected to the telescopic end of the cylinder (82); a horizontal fixed rod (85) is arranged on one side of the first connecting rod (83); one end of the fixed rod (85) is fixedly connected to the outer side wall of the weighing bucket (2), and the other end is vertically hingedly connected to the first connecting rod (83); a horizontal second connecting rod (84) is arranged at the lower end of the first connecting rod (83); one end of the second connecting rod (84) is vertically hingedly connected to the first connecting rod (83), and the other end is suspended at a position close to the side wall of the weighing bucket (2).

6. A powder material anti-blocking weighing device according to claim 1, characterized in that: The exhaust pipe (11) is connected to the feeding pipe (12) via a gas pipeline (13).

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