Circulating riffle

Abstract

The utility model discloses a circulating riffle, which comprises a frame, and a vacuum suction tank, a mixing and stirring hopper, a standard riffle, a negative pressure suction machine and a distribution device which are arranged on the frame, a discharge port of the vacuum suction tank is communicated with a feed port of the mixing and stirring hopper, the mixing and stirring hopper is communicated with the standard riffle, and the negative pressure suction machine is communicated with the standard riffle. The lower end of the standard riffle is provided with two dichotomy discharge ports, the lower ends of the dichotomy discharge ports are provided with the distribution device, the distribution device is connected with an inlet at one end of the negative pressure suction machine, and an outlet at the other end of the negative pressure suction machine is connected with the mixing and stirring hopper. According to the circulating riffle and the circulating method, the technical problem of high manufacturing cost caused by high height of a superposed riffle in the prior art is solved. Most importantly, the utility model provides a processing method which can be used for simultaneously obtaining three reserved samples, namely an original reserved sample, a screened material separated sample and a batch total quantity composite test sample.

Description

Technical Field

[0001] The utility model relates to the technical field of material dividing, in particular to a circulating binary divider. Background Art

[0002] The binector is designed according to the provisions of the national standard GB474 "Methods for preparing coal samples" and is an indispensable tool for reducing coal samples. It consists of a sealed shell, a grid slot, a sample receiver, a dustpan, etc. The width of the grid slot of binectors of different specifications is 2.5 times the maximum particle size of the coal sample, but not less than 5mm, and the slope of the grid slot is not less than 60 degrees. The main features are reasonable structure, easy use, multi-point reduction performance, strong representativeness, and can greatly improve the efficiency and quality of sample preparation. It is suitable for reducing and sampling coal, ore samples or other uneven granular materials.

[0003] The existing material equal distribution sampling is a structure of stacking two dividers from top to bottom. This arrangement will make the equipment very tall, and the manufacturing cost remains high. In addition, the existing material equal distribution sampling cannot automatically obtain the three types of samples: original sample, screened sample, and batch total composite test sample. It requires manual sampling, which is arduous and has poor working conditions. Utility Model Content

[0004] The utility model aims to provide a circulating binary divider to solve the technical problem of high manufacturing cost caused by high height of the stacked binary divider in the prior art, and most importantly to provide a processing method that can simultaneously obtain three types of samples: original sample, sieved sample, and batch total composite test sample.

[0005] To achieve the above-mentioned purpose, the utility model provides a circulating divider, including a frame and a vacuum suction tank, a mixing and stirring bucket, a standard divider, a negative pressure suction machine, a distribution device and an electrical cabinet installed on the frame. The discharge port of the vacuum suction tank is connected with the feed port of the mixing and stirring bucket, the mixing and stirring bucket is connected with the standard divider, two two-division discharge ports are arranged at the lower end of the standard divider, a distribution device is arranged at the lower end of the two-division discharge ports, the distribution device is connected with the inlet of one end of the negative pressure suction machine, the outlet of the other end of the negative pressure suction machine is connected with the mixing and stirring bucket, and the electrical cabinet is electrically connected with the standard divider and the negative pressure suction machine.

[0006] Furthermore, the discharge port of the mixing bucket is connected to the feed port of the standard two-divider, and a gate valve is provided at the discharge port at the bottom of the mixing bucket. The material sample discharged by the gate valve is spread over the feed port of the standard two-divider, so that each particle of the material sample has an equal chance of falling into either side of the two-divider, and two-dividing discharge ports are provided on both sides of the lower part of the standard two-divider.

[0007] Furthermore, a weighing device is installed on the mixing bucket.

[0008] Furthermore, the negative pressure suction machine is composed of a negative pressure tank, a grain suction pipeline, a grain suction fan, a control valve and an electrical cabinet. The negative pressure tank is installed on the top of the frame, and the top of the negative pressure tank is connected to the grain suction fan through the grain suction pipeline. The control valve is installed on the grain suction pipeline, and the control valve is electrically connected to the electrical cabinet.

[0009] Furthermore, the control box PLC and industrial computer in the electrical cabinet can set the number of cycle divisions, control the direction of the turntable discharge, and collect and weigh samples.

[0010] Furthermore, two distribution devices are provided at the lower end of the standard two-partitioner, and two grid workstations are provided on the distribution device. The two distribution devices are respectively connected to the two two-division discharge ports at the lower part of the standard two-partitioner, and four collecting guide trough workstations are respectively provided at the lower ends of the two distribution devices.

[0011] Furthermore, the distribution device may be a combined tee or a rotating receiving tray.

[0012] Furthermore, the collecting guide trough stations are respectively a sample retaining guide trough, a composite test sample guide trough, a circulation guide trough and a screening guide trough. The sample retaining guide trough is weighed and sent for packaging after receiving the sample, and the circulation guide trough receives multiple reduced samples; the composite test sample guide trough is connected to the composite test sample hopper, and multiple sub-batch verification test samples are received and weighed multiple times, and multiple sub-batches of composite test samples are collected and sent for packaging at one time; the sample in the circulation guide trough is divided into two multiple times for a set number of cycles, and sub-batch composite test samples are retained; the screening guide trough receives non-circulating retained samples that are divided into two each time.

[0013] Based on the above technical solution, the utility model can produce the following beneficial effects:

[0014] The utility model provides a circulating binary divider, which adopts the circulating binary divider technology. A binary divider plus a circulating feeding device can obtain a retained sample of 1 / 2n of the initial material sample, thereby reducing the height of the equipment; a processing method is provided, which can simultaneously obtain three retained samples: the original retained sample, the screened material sample, and the batch total composite test sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] In the figure: 1. Vacuum suction tank; 2. Mixing and stirring bucket 2; 3. Standard two-way divider; 4. Negative pressure suction machine; 5. Frame; 6. Two-way discharge port; 7. Distribution device; 8. Weighing device; 9. Negative pressure tank; 10. Grain suction pipeline; 11. Grain suction fan; 12. Control valve; 13. Electrical cabinet. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the present invention, a cyclic binary divider of the present invention is further described in detail below with reference to the accompanying drawings.

[0018] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] like Figure 1 As shown, the utility model provides a circulating divider, which is characterized in that it includes a frame 5 and a vacuum suction tank 1, a mixing and stirring bucket 2, a standard divider 3, a negative pressure suction machine 4, and a distribution device 7 installed on the frame 5. The discharge port of the vacuum suction tank 1 is connected with the feed port of the mixing and stirring bucket 2, the mixing and stirring bucket 2 is connected with the standard divider 3, two binary discharge ports 6 are arranged at the lower end of the standard divider 3, and a distribution device 7 is arranged at the lower end of the binary discharge port 6. The distribution device 7 is connected to the inlet of one end of the negative pressure suction machine 4, and the outlet of the other end of the negative pressure suction machine 4 is connected to the mixing and stirring bucket 2, and the electrical cabinet 13 is electrically connected to the standard divider 3 and the negative pressure suction machine 4.

[0020] The discharge port of the mixing and stirring bucket 2 is connected to the feed port of the standard two-divider 3. A gate valve is provided at the discharge port at the bottom of the mixing and stirring bucket 2. The material sample discharged by the gate valve is spread over the feed port of the standard two-divider 3, so that each particle of the material sample has an equal chance to fall into either side of the two-divider. Two-dividing discharge ports 6 are provided on both sides of the lower part of the standard two-divider 3.

[0021] A weighing device 8 is installed on the mixing and stirring bucket 2.

[0022] The negative pressure suction machine 4 is composed of a negative pressure tank 9, a grain suction pipeline 10, a grain suction fan 11, a control valve 12 and an electrical cabinet 13. The negative pressure tank 9 is installed above the frame 5. The top of the negative pressure tank 9 is connected to the grain suction fan 11 through the grain suction pipeline 10. The control valve 12 is installed on the grain suction pipeline 10, and the control valve 12 is electrically connected to the electrical cabinet 13.

[0023] The control box PLC and industrial computer in the electrical cabinet 13 can set the number of cycle divisions, control the direction of the turntable discharge material, and collect and weigh the retained samples.

[0024] Two distribution devices 7 are provided at the lower end of the standard two-divider 3, and two grid stations are provided on the distribution device 7. The two distribution devices 7 are respectively connected to the two two-division discharge ports 6 at the lower part of the standard two-divider 3, and four collecting guide trough stations are respectively provided at the lower ends of the two distribution devices 7.

[0025] The distribution device 7 can be a combined tee or a rotating receiving tray.

[0026] The collecting guide trough stations are respectively a sample retaining guide trough, a composite test sample guide trough, a circulation guide trough and a screening guide trough. The sample retaining guide trough is weighed and sent for packaging after receiving the sample, and the circulation guide trough receives multiple reduced samples; the composite test sample guide trough is connected to the composite test sample hopper, and multiple sub-batch verification test samples are received and weighed multiple times, and multiple sub-batches of composite test samples are collected and packaged at one time; the sample in the circulation guide trough is divided into two multiple times for a set number of cycles, and sub-batch composite test samples are retained; the screening guide trough receives non-circulating retained samples that are divided into two each time.

[0027] The specific workflow of this application is as follows:

[0028] According to the sample retention requirements, it can be set to two working modes: original sample retention or original sample retention and composite test sample retention;

[0029] According to the requirements of the initial feed amount of the mixer and the weight and number of the composite test sample, set the number of reciprocating cycle divisions, according to the number of initial sampling and feeding of sub-batches, set the weighing and measurement times of the original sample and the composite test sample, set the sample code and record the sample measurement respectively;

[0030] 1. The sample falls from the vacuum suction tank 1 into the mixing and stirring bucket 2. After the mixing and stirring bucket 2 mixes the batch of samples evenly, the weight is recorded by the weighing device 8. The valve under the mixing and stirring bucket 2 is opened, and the sample falls into the standard divider 3. The standard divider divides the fully mixed sample into the first sample and the second sample with equal opportunities.

[0031] 2. The first sample can be used as the original sample after passing through the distribution device 7, and the second sample can be re-sucked into the vacuum suction tank 1 by the negative pressure suction machine 4 after passing through the distribution device 7 and then fall into the mixing and stirring bucket 2;

[0032] 3. The second sample is fully mixed in the mixing and stirring bucket 2 and falls into the standard divider 3 for the second time. After the second sample is divided into the third and fourth samples, the third sample is retained or transferred to screening, and the fourth sample is re-sucked into the vacuum suction tank 1 by the negative pressure suction machine 4 and then falls into the mixing and stirring bucket 2;

[0033] 4. By repeating steps 2 and 3, a retained sample of 1 / 2n of the initial material sample can be obtained; the number of cycles is set according to the requirements of the composite test sample of the total amount of the unloading batch, and the original retained sample, the sieved material sample, and the composite test sample of the batch total amount are retained.

[0034] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A cyclic binary divider, characterized in that: The invention comprises a frame (5) and a vacuum suction tank (1) installed on the frame (5), a mixing and stirring bucket (2), a standard two-partitioner (3), a negative pressure suction machine (4), a distribution device (7) and an electrical cabinet (13), wherein the discharge port of the vacuum suction tank (1) is connected to the feed port of the mixing and stirring bucket (2), the mixing and stirring bucket (2) is connected to the standard two-partitioner (3), two two-part discharge ports (6) are arranged at the lower end of the standard two-partitioner (3), a distribution device (7) is arranged at the lower end of the two-part discharge ports (6), the distribution device (7) is connected to the inlet of one end of the negative pressure suction machine (4), the outlet of the other end of the negative pressure suction machine (4) is connected to the mixing and stirring bucket (2), and the electrical cabinet (13) is electrically connected to the standard two-partitioner (3) and the negative pressure suction machine (4).

2. A cyclic binary divider according to claim 1, characterized in that: The material outlet of the mixing and stirring bucket (2) is connected to the material inlet of the standard two-divider (3). The material outlet at the bottom of the mixing and stirring bucket (2) is provided with a gate valve. The material sample discharged by the gate valve is spread over the material inlet of the standard two-divider (3), so that each particle of the material sample has an equal chance to fall into either side of the two-divider. Two-dividing material outlets (6) are provided on both sides of the lower part of the standard two-divider (3).

3. A cyclic binary divider according to claim 1, characterized in that: A weighing device (8) is installed on the mixing and stirring bucket (2).

4. A cyclic binary divider according to claim 1, characterized in that: The negative pressure suction machine (4) is composed of a negative pressure tank (9), a grain suction pipeline (10), a grain suction fan (11) and a control valve (12). The negative pressure tank (9) is installed above the frame (5). The top of the negative pressure tank (9) is connected to the grain suction fan (11) through the grain suction pipeline (10). The control valve (12) is installed on the grain suction pipeline (10), and the control valve (12) is electrically connected to the electrical cabinet (13).

5. A cyclic binary divider according to claim 1, characterized in that: The control box PLC and industrial computer in the electrical cabinet (13) can set the number of cycle divisions, control the direction of the turntable discharge, and collect and weigh samples.

6. A cyclic binary divider according to claim 1, characterized in that: Two distribution devices (7) are provided at the lower end of the standard two-dividing device (3), and two grid workstations are provided on the distribution device (7). The two distribution devices (7) are respectively connected to the two two-dividing discharge ports (6) at the lower part of the standard two-dividing device (3), and four collecting guide groove workstations are respectively provided at the lower ends of the two distribution devices (7).

7. A cyclic binary divider according to claim 1, characterized in that: The distribution device (7) may be a combined tee or a rotating receiving tray.

8. A cyclic binary divider according to claim 6, characterized in that: The collecting guide slot stations are respectively a sample retaining guide slot, a composite test sample guide slot, a circulation guide slot and a screening guide slot. The sample retaining guide slot receives the sample and weighs it and sends it for packaging. The circulation guide slot receives multiple reduction samples. The composite test sample guide slot is connected to the composite test sample hopper, receives sub-batch verification test samples multiple times, weighs and measures them multiple times, and multiple sub-batches of composite test samples are collected and sent for packaging once. The sample in the circulation guide slot is divided into two parts multiple times for a set number of cycles, and the sub-batch composite test samples are retained. The screening trough receives the non-circulating retained sample from each binary separation.

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