Continuous sampling device for belt conveyor

Abstract

The utility model discloses a continuous sampling device for a belt conveyor, which belongs to the field of chemical engineering sampling analysis equipment and comprises a belt conveyor pinch roller device and a sampling tube, the belt conveyor pinch roller device comprises a support, a wheel shaft and pinch rollers, the support is arranged on two sides of the belt conveyor in a crossing mode, and two ends of the wheel shaft are connected with the support through bearing seats. The two pinch rollers are arranged on the wheel shaft at intervals, and the sampling tube is located between the two pinch rollers and fixedly connected with the wheel shaft; the sampling pipe is obliquely fixed on one pinch roller, the oblique lower end of the sampling pipe is positioned between the two pinch rollers, the oblique upper end of the sampling pipe extends to the outer side of the connected pinch roller, and the pipe section of the sampling pipe positioned between the two pinch rollers is bent and is provided with a downward pipe orifice. And uniform and continuous material sampling can be achieved, the contingency of manual sampling is avoided, and the material analysis result is more real and reliable.

Description

Technical Field

[0001] The utility model belongs to the field of chemical sampling and analysis equipment, and particularly relates to a continuous sampling device for a belt conveyor. Background Art

[0002] During the chemical production process, it is necessary to continuously sample and analyze various solid materials. Sampling solid materials is a rather cumbersome task. Especially for granular or powdered solid materials conveyed by a belt conveyor, sampling is generally carried out using a sampling tool at certain intervals. Since the production conditions often change, sometimes the samples taken may be accidental and unable to represent the production process conditions during a certain period. The analysis results of the samples may not accurately reflect the production process conditions within a certain period. Therefore, a continuous sampling device for a belt conveyor is proposed to solve the above deficiencies. Content of the Utility Model

[0003] The purpose of the utility model is to provide a continuous sampling device for a belt conveyor, aiming to solve the problems of accidental manual sampling and low work efficiency in the above background art.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions: A continuous sampling device for a belt conveyor includes a belt conveyor pressure pulley device and a sampling pipe. The belt conveyor pressure pulley device includes a bracket, a wheel shaft, and a pressure pulley. The bracket straddles both sides of the belt conveyor. The wheel shaft is horizontally arranged and both ends are connected to the bracket through bearing seats. There are two pressure pulleys, and the two pressure pulleys are arranged at intervals on the wheel shaft. The sampling pipe is obliquely fixed on one pressure pulley. The obliquely downward end of the sampling pipe is located between the two pressure pulleys, and the obliquely upward end extends outside the connected pressure pulley. The pipe section of the sampling pipe between the two pressure pulleys is bent and the pipe orifice faces downward.

[0005] Further, the sampling pipe forms a feed short pipe and a discharge long pipe. The feed short pipe is parallel to the side end face of the pressure pulley and is arranged downward relative to the horizontal direction.

[0006] Further, the bracket includes two columns and a cross beam arranged at the tops of the two columns. An annular baffle with an open lower end is arranged on one column, and the annular baffle surrounds the free end of the discharge long pipe outside.

[0007] The utility model has the following beneficial effects:

[0008] The utility model provides a continuous sampling device for a belt conveyor. Through the structural design of the pressure belt wheel and the sampling pipe, solid granular or powdery materials conveyed by the belt conveyor can be evenly sampled at equal intervals of time, reducing the labor intensity of workers while achieving accurate and continuous sampling, avoiding accidental analysis errors caused by manual sampling at fixed times, and making the sampling process more rigorous. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 It is a schematic diagram of the structural connection of the sampling pipe and the pressure belt wheel on the side of the utility model;

[0011] In the figure: 1. Sampling pipe; 2. Bracket; 3. Wheel shaft; 4. Pressure belt wheel; 5. Feed short pipe; 6. Discharge long pipe; 7. Annular baffle; 8. Material receiving bucket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] As Figures 1 to 2 shown, a continuous sampling device for a belt conveyor includes a belt conveyor pressure belt wheel device and a sampling pipe 1. The belt conveyor pressure belt wheel device includes a bracket 2, a wheel shaft 3, and a pressure belt wheel 4. The bracket 2 is connected to both sides of the belt conveyor frame. Both ends of the wheel shaft 3 are connected to the bracket 2 through bearing seats. There are two pressure belt wheels 4, and the two pressure belt wheels 4 are arranged at intervals in the middle of the wheel shaft 3 and are located on the upper surface of the belt conveyor. The sampling pipe 1 is located between the two pressure belt wheels 4 and is fixedly connected to the wheel shaft 3. The pressure belt wheel 4 is located on the upper surface of the belt. The bearing seat can drive the wheel shaft 3 and the sampling pipe 1 to rotate along the conveying direction of the belt conveyor together through the pressure belt wheel 4.

[0013] The sampling pipe 1 is obliquely fixed on one pressure belt wheel 4. The obliquely downward end of the sampling pipe 1 is located between the two pressure belt wheels 4, and the obliquely upward end extends outside the connected pressure belt wheel. The pipe section of the sampling pipe 1 located between the two pressure belt wheels 4 is bent and the pipe orifice is downward; the sampling pipe 1 is formed with a feed short pipe 5 and a discharge long pipe 6, with lengths of 50 mm and 400 mm respectively. A DN15 seamless pipe is used. The feed short pipe 5 is parallel to the side end face of the pressure belt wheel 4 and is arranged obliquely downward in the horizontal direction, and the optimal angle is 35°.

[0014] The bracket 2 includes two columns and a cross beam provided at the top ends of the two columns. An annular baffle 7 with an open lower end is provided on the column. The baffle 7 surrounds the movement track of the discharge long pipe 6 to prevent the material from splashing everywhere. A material receiving bucket 8 is provided at the open bottom end of the annular baffle 7 for receiving the material.

[0015] The specific operation process of the utility model is as follows:

[0016] When the belt conveyor is running, it drives the pressure belt wheel 4 to rotate, and the pressure belt wheel 4 drives the sampling pipe 1 to rotate. When the sampling pipe 5 rotates to the bottom closest to the belt, it evenly scoops up the materials on the belt. When the feeding short pipe 5 rotates to the uppermost end, the materials fall downward inside the feeding short pipe 5 due to gravity, and then fall from the discharging long pipe 6 into the receiving bucket 8 arranged at the bottom opening end of the annular baffle 7, completing a sampling cycle. As the belt rotates, the pressure belt wheel 4 rotates, driving the sampling pipe to rotate continuously in a cycle, achieving uniform sampling. By using the solid material belt sampling pipe, uniform and continuous sampling of materials can be achieved, avoiding the contingency of manual timed sampling, and the material analysis results are true and reliable.

Claims

1. A continuous sampling device for a belt conveyor, comprising a belt conveyor belt pressure pulley device and a sampling tube (1), characterized in that: The belt conveyor belt pressure wheel device comprises a bracket (2), a wheel shaft (3) and a belt pressure wheel (4), wherein the bracket (2) is arranged on both sides of the belt conveyor, the wheel shaft (3) is arranged horizontally and both ends are connected to the bracket (2) through bearing seats, two belt pressure wheels (4) are provided, and the two belt pressure wheels (4) are arranged on the wheel shaft (3) at intervals, and the sampling tube (1) is fixed obliquely on one belt pressure wheel (4), the oblique downward end of the sampling tube (1) is located between the two belt pressure wheels (4), and the oblique upward end extends outside the connected belt pressure wheels, and the pipe section of the sampling tube (1) located between the two belt pressure wheels (4) is bent and the pipe mouth is downward.

2. A continuous sampling device for a belt conveyor according to claim 1, characterized in that: The sampling tube (1) forms a short feed tube (5) and a long discharge tube (6), wherein the short feed tube (5) is parallel to the side end surface of the belt pressing wheel (4) and is arranged downward relative to the horizontal direction.

3. A continuous sampling device for a belt conveyor according to claim 1, characterized in that: The support (2) comprises two upright posts and a crossbeam arranged at the top ends of the two upright posts. An annular baffle (7) with an open lower end is arranged on one of the upright posts. The annular baffle (7) is arranged around the outer side of the free end of the long discharge tube (6).

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