Cement weighing calibration device for mine filling

Abstract

The utility model provides a cement weighing and calibrating device for mine filling, which is characterized by comprising a powder measuring scale used for weighing and feeding cement, a discharging port of the powder measuring scale is connected with a cement discharging pipe, the bottom end of the cement discharging pipe is connected with a cement discharging hose, a cement containing bag is arranged below the cement discharging hose, and the cement containing bag is connected with the powder measuring scale. A feeding port is formed in the top end of the ash containing bag, the bottom end of the ash discharging hose is movably connected with the feeding port in the top end of the ash containing bag, a discharging port is formed in the bottom end of the ash containing bag, a ribbon is arranged at the discharging port, and an electronic scale used for calibration is arranged below the ash containing bag. By using the device provided by the utility model, the weighing error of the powder metering scale and the electronic scale can be effectively counted, so that the powder metering scale can be quickly weighed and calibrated; according to the utility model, the labor intensity of calibration of the powder metering scale is greatly reduced, the potential safety hazard that personnel enter the stirring barrel for operation is eliminated, and the quality of filling slurry is ensured; the structure is simple and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of weighing and batching, and relates to a cement weighing and calibration device for mine filling. Background Art

[0002] In mine filling, the filling slurry is generally obtained by mixing sand and gravel with cement. The amount of cement added is the key factor in determining the quality of the filling slurry. According to the quality management requirements of the mining area, the amount of cement needs to be regularly weighed and calibrated to ensure that the cement addition meets the technical standards. The traditional cement weighing calibration method is to transport the cement in the mixing barrel according to the set value on the metering scale, and manually bag all the cement in the mixing barrel, and then manually transport the cement bags out of the mixing barrel and weigh them on the electronic scale. By comparing the weighing value of the electronic scale with the set value of the metering scale, the purpose of physical weighing calibration is achieved. This method consumes a lot of manpower and has high labor intensity. It takes 4-6 times to calibrate a system to accurately calibrate. During the calibration process, personnel need to enter the mixing barrel to work. The working environment is dusty and poor, which seriously affects the health of the operators, and there are also safety hazards in confined space operations. It is understood from the industry that there is currently no well-designed and easy-to-operate mine filling cement weighing calibration device. Utility Model Content

[0003] The utility model aims to provide a cement weighing and calibration device for mine filling, which has the advantages of accurate calibration, simple operation, time saving and labor saving, in view of the problems existing in the prior art.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A cement weighing and calibration device for mine filling comprises a powder metering scale for cement weighing and feeding, the discharge port of the powder metering scale is connected with an ash discharge pipe, the bottom end of the ash discharge pipe is connected with an ash discharge hose, an ash bag is provided below the ash discharge hose, a feed port is provided at the top of the ash bag, the bottom end of the ash discharge hose is movably connected with the feed port at the top of the ash bag, a discharge port is provided at the bottom end of the ash bag, a cable tie is provided at the discharge port, and an electronic scale for calibration is provided below the ash bag.

[0006] Furthermore, the bottom end of the ash lowering pipe extends into the top end of the ash lowering hose and is fixed by a pipe clamp.

[0007] Furthermore, the pipe clamp is a throat clamp.

[0008] Furthermore, the bottom end of the ash discharge hose is movably connected to the feed port of the ash bag via Velcro.

[0009] Furthermore, lifting belts for facilitating lifting are respectively provided on both sides of the ash bag.

[0010] Furthermore, the ash discharge hose is made of polyester needle felt.

[0011] Furthermore, the powder weighing scale is a spiral weighing scale.

[0012] The beneficial effects of the utility model are:

[0013] The device of the utility model can effectively count the weighing errors between the powder metering scale and the electronic scale, so as to quickly weigh and calibrate the powder metering scale; the utility model greatly reduces the labor intensity of calibrating the powder metering scale, eliminates the safety hazard of personnel entering the mixing barrel for operation, and ensures the quality of the filling slurry; the structure is simple and the installation and maintenance are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the ash bag of the utility model.

[0016] In the figure, 1-mixing barrel, 2-powder weighing scale, 3-ash discharging pipe, 4-ash discharging hose, 5-pipe clamp, 6-ash bag, 7-Velcro, 8-discharge port, 9-cable tie, 10-electronic scale, 11-lifting belt, 12-maintenance platform. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0018] like Figure 1-2 As shown, a cement weighing and calibration device for mine filling includes a powder metering scale 2 for cement weighing and feeding. In the utility model, the powder metering scale 2 can adopt a spiral metering scale. The feeding port of the powder metering scale 2 is connected with an ash feeding pipe 3. The bottom end of the ash feeding pipe 3 is connected with an ash feeding hose 4. The ash feeding hose 4 is made of polyester needle felt. The bottom end of the ash feeding pipe 3 extends into the top of the ash feeding hose 4 and is fixed by a pipe clamp 5. The pipe clamp 5 adopts a throat clamp with a tight locking and a large adjustment range. An ash bag 6 is provided below the ash feeding hose 4. A feeding port is provided at the top of the ash feeding bag 6. The bottom end of the ash feeding bag 6 is provided with a discharge port 8 for discharging cement. A cable tie is provided at the discharge port 8. An electronic scale 10 for calibration is provided below the ash feeding bag 6. Lifting straps 11 for convenient lifting are provided on both sides of the ash feeding bag 6. The electronic scale 10 can be placed on the maintenance platform of the outer wall of the mixing barrel, thereby reducing the length of the ash discharge hose 4.

[0019] The method of using the utility model is as follows:

[0020] During calibration, first set a cement batching weight value on the powder metering scale 2, and the powder metering scale 2 outputs cement according to the set value, and passes through the ash lowering pipe 3 and the ash lowering hose 4 in turn, and enters the ash bag 6. After the ash bag 6 is full, stop unloading, observe and record the weighing value of the electronic scale 10, and after weighing, separate the bottom of the ash lowering hose 4 from the Velcro 7 at the top of the ash bag 6, connect the lifting belt 11 of the ash bag 6 through the lifting equipment, and place it above the open space after lifting, remove the tie, pour the cement in the bag through the discharge port 8 to the open space below, and then put it back on the electronic scale 10, and weigh the second bag, and weigh repeatedly until the powder metering scale 2 outputs all the cement according to the set value. Compare the weight setting value of the powder metering scale 2 and the continuous weighing cumulative value of the electronic scale 10. If the error is within the allowable range, the powder metering scale 2 does not need to be calibrated. If the error exceeds the allowable range, the powder metering scale 2 needs to be calibrated according to the error value, so as to complete the calibration.

Claims

1. A cement weighing and calibration device for mine filling, characterized in that: The invention comprises a powder metering scale (2) for weighing and feeding cement, wherein the discharge port of the powder metering scale (2) is connected to an ash discharge pipe (3), the bottom end of the ash discharge pipe (3) is connected to an ash discharge hose (4), an ash bag (6) is provided below the ash discharge hose (4), a feed port is provided at the top end of the ash discharge bag (6), the bottom end of the ash discharge hose (4) is movably connected to the feed port at the top end of the ash discharge bag (6), a discharge port (8) is provided at the bottom end of the ash discharge bag (6), a cable tie is provided at the discharge port (8), and an electronic scale (10) for calibration is provided below the ash discharge bag (6).

2. A cement weighing and calibration device for mine filling according to claim 1, characterized in that: The bottom end of the ash discharging pipe (3) extends into the top end of the ash discharging hose (4) and is fixed by a pipe clamp (5).

3. A cement weighing and calibration device for mine filling according to claim 2, characterized in that: The pipe clamp (5) is a throat clamp.

4. A cement weighing and calibration device for mine filling according to claim 1, characterized in that: The bottom end of the ash discharge hose (4) is movably connected to the feed port of the ash bag (6) via a Velcro (7).

5. A cement weighing and calibration device for mine filling according to claim 1, characterized in that: Lifting straps (11) for facilitating lifting are respectively provided on both sides of the ash bag (6).

6. A cement weighing and calibration device for mine filling according to claim 1, characterized in that: The ash discharge hose (4) is made of polyester needle felt.

7. A cement weighing and calibration device for mine filling according to claim 1, characterized in that: The powder weighing scale (2) is a spiral weighing scale.

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