CN104568549B - One kind rotation bucket disc type reduction device - Google Patents

Abstract

The present invention provides a kind of rotation bucket disc type reduction device, including, rejected material elephant trunk (2), charging aperture (3) is provided with the top of the housing (1), rejected material elephant trunk (2) is connected to the lower end of housing (1), bucket disk (4) is provided with inside the housing (1), the bucket disk (4) is cone, its bottom opening, the top of the bucket disk (4) is fixedly connected with rotary shaft, the rotary shaft extends to housing (1) outside and is connected with transmission mechanism, the rotary shaft by relative to vertical direction it is inclined in a manner of set, at least two division mouths (9) have been positioned apart from the conical surface of the bucket disk (4), lower section in the bucket disk corresponding to the division mouth (9) is provided with the sample collection elephant trunk (5) to extension outside housing (1).The division ratio adjustable extent of the present invention is big, can meet the sampling requirement of larger division ratio, meanwhile, its sample preparation efficiency high, the reduced sample time is short, division precision is high.

Description

A rotary bucket pan type shrinker

technical field

The invention relates to a splitter, in particular to a rotary bucket-type splitter.

Background technique

In the design of mechanized sampling and preparation, the reducer is a device mainly used to complete the reduction of samples, and it is also the key equipment in the sample preparation system.

Due to the miscellaneous quality of coal and the large variety of coal and serious inhomogeneity, it is very difficult to extract representative samples. Different occasions, needs, coal types, and batch coal quality inspections have strict regulations on the number, weight and distribution of sub-samples. This requires ensuring that the collected samples are representative. The sampling holes in the shrinker And the particle size of pulverized coal will affect the size of the reduction ratio, and the speed of the motor will also have a certain impact on the precision of the reduction.

At present, the samplers used in the secondary reduction are basically rotary scraper type reduction devices, and occasionally linear type reduction devices are used. The rotary scraper type shrinker must use the belt to convey the material. Most of them realize the adjustment of the reduction ratio by the speed of the motor or the reducer. This adjustment method not only makes the change range of the reduction ratio smaller, but also cannot realize Sampling requirements for larger reduction ratios. In addition, this type of reduction device also has the matching problem of belt speed and scraper line speed. The linear divider is a first-generation product, which is generally used for primary sampling, and the secondary divider is rarely used, mainly because its linear structure and the handling of residual materials are very inconvenient for the site and design. The existing secondary divider has a small adjustable range of division, low sample preparation efficiency, long time to divide the sample, and is easy to cause deviation.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the present invention provides a rotary bucket-type shrinker, which has a large adjustable range of shrinkage ratio and can meet the sampling requirements of a larger shrinkage ratio. At the same time, its sample preparation efficiency is high, The sample reduction time is short and the reduction precision is high.

In order to achieve the above purpose, the present invention provides a rotary bucket-type shrinking divider, which includes a housing and a discarding chute, the top of the housing is provided with a feed port, and the discarding chute is connected to the lower end of the housing. There is a bucket inside the casing, the bucket is frustum-shaped, its bottom is open, its top is fixedly connected with the rotating shaft, the rotating shaft extends to the outside of the casing and is connected with the transmission mechanism, and the rotating shaft is relatively It is arranged in an inclined manner in the vertical direction, and at least two shrinkage openings are arranged at intervals on the side wall of the bucket tray, and a sample extending to the outside of the housing is provided at the bottom of the bucket tray corresponding to the shrinkage openings. Collect the chute.

In this technical solution, by making the bucket pan into a truncated cone shape, at least two shrinkage openings are provided on the side wall of the bucket pan, and the rotation axis of the bucket pan is set obliquely relative to the vertical direction, so that when the rotation axis When the bucket is driven to rotate, the sample falls vertically on the side wall of the bucket, and the shrinkage port on the side wall can easily intercept the required sample, and it is easy to achieve uniform shrinkage, which can ensure reliable analysis Samples, and then through the transmission mechanism to control the rotation speed of the rotating shaft, and then can easily control the shrinkage range of the bucket, the shrinkage ratio range of this shrinker can reach 1/3-1/150, the shrinker's Simple structure, larger adjustable range of reduction ratio, higher sample preparation efficiency, shorter sampling time, and higher reduction accuracy; in addition, this structure makes it easier to remove the discarded material from the bucket tray , so as to further improve the precision of the reduction. By setting the rotation axis of the bucket tray in a manner inclined relative to the vertical direction, the distance between each sampling point on the axial direction of the shrinking port and the feed port can be made close, and the precision of the splitting can be further improved.

The angle of inclination of the rotation axis relative to the vertical direction is such that the side wall of the bucket tray near the side of the feed opening is arranged parallel to the horizontal direction.

In this technical solution, by making the side wall of the bucket tray close to the feed port parallel to the horizontal direction, it is easier to achieve uniform shrinkage, so that when the shrinkage port of the shrinker passes through the cutting stream, it can ensure The basic requirements for vertical cutting and full-section cutting further ensure that reliable analysis samples can be obtained. At the same time, this method can better meet the needs of larger reduction ratios.

A cleaning device is also provided in the housing, and the cleaning device is a scraper, which is located outside the bucket pan and adjacent to the outer surface of the bucket pan.

In this technical solution, through the arrangement of the cleaning device, it is possible to prevent the accumulation of impurities on the outer surface of the bucket pan shrinker, and avoid the blockage of the shrinkage opening.

The transmission mechanism is arranged on the housing, which is composed of a frequency conversion motor and a reducer.

In this technical solution, by setting the transmission mechanism on the housing and making it composed of a frequency conversion motor and a reducer, not only the structure of the device can be simplified, but also the rotating speed of the bucket can be controlled more easily, thereby making it easier It is easy to realize the sampling requirements of different reduction ratios.

The shrinkage port is provided with a slide plate for adjusting its diameter.

In this technical solution, the versatility of the bucket in the shrinker can be improved through the setting of the slide plate. We performed exchange of bucket pan.

The number of the shrinkage openings is four to six, which are evenly distributed on the side wall of the bucket pan, and the length direction of the shrinkage openings is consistent with the axial direction of the bucket pan.

In this technical solution, the number of shrinkage openings is four to six and uniformly distributed on the side wall of the bucket pan, and the length direction of the shrinkage openings is consistent with the axial direction of the bucket pan. This can ensure that the reducer has a larger reduction ratio range, and at the same time can better ensure the sampling accuracy, and can also greatly increase the division accuracy and the probability that any point in the material flow is randomly sampled.

The feed inlet is provided with a flange structure matching the outlet of the crusher.

In this technical solution, by providing the feed port with a flange structure that matches the outlet of the crusher, the belt conveyor specially designed for shrinking is omitted, and the shrinking device can be directly connected to the crushing machine. The outlet of the crusher, so that the cutting material of the crusher can directly enter the shrinking device for shrinking sampling, which reduces the circulation link of the sample, thereby reducing the loss of water and the probability of mixing samples, so as to ensure the accuracy of sampling. accuracy, reducing systematic errors.

The outlet of the sample collection chute is provided with a flange structure matching the inlet of the sample collector.

In this technical scheme, the outlet of the sample collection chute is provided with a flange structure that matches the inlet of the sample collector, so that the collected samples can directly enter the sample collector, reducing the flow of samples. Thereby, the loss of water can be reduced, and the probability of mixing samples can be reduced, so that the accuracy of sampling can be ensured and the system error can be reduced.

The housing is a sealed structure.

In this technical scheme, by making the housing a sealed structure, it can be ensured that the entire process from the entry of the material flow, to the end of the shrinkage, to the storage of the sample is carried out in a fully closed structure system, which can reduce the loss of water, and The accuracy of sampling can be ensured, and the system error is reduced.

An inspection door is provided on the side wall of the housing.

In this technical solution, the maintenance of the reducer can be facilitated through the setting of the inspection door.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Figure 2 is a perspective view of the present invention;

Fig. 3 is a schematic structural diagram of Fig. 2 along the direction C and removing the housing;

Fig. 4 is a structural schematic diagram of the bucket tray in the present invention.

In the figure: 1. Shell, 2. Waste material chute, 3. Feed inlet, 4. Bucket, 5. Sample collection chute, 6. Cleaning device, 7. Frequency conversion motor, 8. Reducer, 9. Squeeze your mouth.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Fig. 1 to Fig. 4, a kind of rotating bucket plate type shrinkage divider comprises shell 1, discarding material chute 2, and the top of described housing 1 is provided with feed inlet 3, and discarding material chute 2 is connected in At the lower end of the housing 1, a bucket 4 is arranged inside the housing 1. The bucket 4 is a truncated cone, its bottom is open, and its top is fixedly connected with the rotating shaft. The rotating shaft extends to the outside of the housing 1 and is connected with the The transmission mechanism is connected, the rotating shaft is set in an inclined manner relative to the vertical direction, and at least two shrinking openings 9 are arranged at intervals on the side wall of the bucket pan 4, and the inside of the bucket pan corresponds to the shrinking openings 9. A sample collection chute 5 extending to the outside of the housing 1 is provided below the opening 9 . By making the bucket pan 4 a truncated cone shape, at least two shrinkage openings 9 are provided on the side wall of the bucket pan 4, and the rotating shaft of the bucket pan 4 is arranged obliquely relative to the vertical direction, so that when the rotating shaft drives the When the bucket pan 4 rotates, the sample falls vertically on the side wall of the bucket pan 4, and the shrinkage port 9 on the side wall can easily intercept the required sample, and it is easy to achieve uniform shrinkage, which can ensure reliable Analyze the sample, and then control the rotation speed of the rotating shaft through the transmission mechanism, and then can easily control the reduction range of the bucket plate 4. The reduction ratio range of this reducer can reach 1/3-1/150. The structure of the device is simple, the adjustable range of the reduction ratio is larger, and the sample preparation efficiency is higher, the required sampling time is shorter, and the reduction accuracy is higher; Remove it, so as to further improve the accuracy of the indentation. By setting the rotation axis of the bucket plate 4 in an inclined manner relative to the vertical direction, the distance between each sampling point on the axial direction of the shrinkage port 9 and the feed port 3 can be close, thereby further improving the precision of the shrinkage .

The rotation axis is inclined at an angle relative to the vertical direction so that the side wall of the bucket tray 4 near the feed opening 3 is arranged parallel to the horizontal direction. By making the side wall of the bucket tray 4 close to the feed port 3 side parallel to the horizontal direction, it is easier to achieve uniform shrinkage, so that when the shrinkage mouth of the shrinker passes through the cutting stream, vertical cutting can be ensured. The basic requirement of full-section cutting further ensures that reliable analysis samples can be obtained. At the same time, this method can better meet the needs of larger reduction ratios.

A cleaning device 6 is also provided in the housing 1 , and the cleaning device 6 is a scraper, which is located outside the bucket pan 4 and adjacent to the outer surface of the bucket pan 4 . Through the setting of the cleaning device 6 , it is possible to prevent impurities from accumulating on the rough outer surface of the pan shrinker and divider, thereby avoiding the blockage of the shrinkage opening 9 .

The transmission mechanism is arranged on the housing 1, which is composed of a frequency conversion motor 7 and a reducer 8. By setting the transmission mechanism on the housing and making it consist of a variable frequency motor 7 and a reducer 8, not only the structure of the device can be simplified, but also the rotating speed of the bucket 4 can be controlled more easily, so that it is easier to realize different Sampling requirements for downscaling.

The shrinkage port 9 is provided with a slide plate for adjusting its diameter. Through the setting of the slide plate, the versatility of the bucket plate 4 in the reducer can be improved. When different shrinkage ratios are required, the required requirements can be achieved only through the adjustment of the slide plate, without frequent replacement of the bucket plate. up.

The number of the shrinkage openings 9 is four to six, which are evenly distributed on the side wall of the bucket pan 4 , and the length direction of the shrinkage openings 9 is consistent with the axial direction of the bucket pan 4 . This can ensure that the reducer has a larger reduction ratio range, and at the same time can better ensure the sampling accuracy, and can also greatly increase the division accuracy and the probability that any point in the material flow is randomly sampled.

The feed port 3 is provided with a flange structure matching the outlet of the crusher. By setting the feed port 3 with a flange structure that matches the outlet of the crusher, the belt conveyor specially designed for shrinking is omitted, and the shrinking device can be directly connected to the outlet of the crusher, so that The cutting material of the crusher can directly enter the shrinking device for shrinking sampling, which reduces the circulation link of the sample, thereby reducing the loss of water and the probability of mixing samples, thereby ensuring the accuracy of sampling and reducing the system cost. error.

The outlet of the sample collection chute 5 is provided with a flange structure matching the inlet of the sample collector. By making the outlet of the sample collection chute 5 be provided with a flange structure matching the inlet of the sample collector, the collected samples can be directly entered into the sample collector, reducing the flow of samples, thereby reducing the loss of moisture. Loss, and reduce the chance of mixing samples, so as to ensure the accuracy of sampling and reduce system errors.

The housing 1 is a sealed structure. By making the shell 1 a sealed structure, it can be ensured that the entire process from the entry of the material flow, to the end of the shrinkage, to the storage of the sample is carried out in a fully closed structure system, which can reduce the loss of water and ensure the accuracy of sampling , reducing the systematic error.

An inspection door is provided on the side wall of the housing 1 . The maintenance of the reducer can be facilitated by setting the inspection door.

Claims (9)

1. A rotary bucket-disc type shrinking device, including a housing (1), a waste material chute (2), the top of the housing (1) is provided with a material inlet (3), a waste material chute (2) ) connected to the lower end of the housing (1), characterized in that the housing (1) is provided with a bucket (4) inside, the bucket (4) is in the shape of a truncated cone, its bottom is open, and its top is connected to the rotating shaft Fixedly connected, the rotating shaft extends to the outside of the housing (1) and is connected to the transmission mechanism, the rotating shaft is arranged in an inclined manner relative to the vertical direction, and the side walls of the bucket (4) are arranged at intervals There are at least two shrinkage openings (9), and a sample collection chute (5) extending to the outside of the casing (1) is provided in the bucket corresponding to the lower portion of the shrinkage openings (9); the rotating The shaft is inclined at an angle relative to the vertical direction so that the side wall of the bucket pan (4) near the feed opening (3) is arranged parallel to the horizontal direction. 2. A rotary bucket-pan type shrinker according to claim 1, characterized in that a cleaning device (6) is also provided in the housing (1), and the cleaning device (6) is a scraper A plate located outside the bucket pan (4) and adjacent to the outer surface of the bucket pan (4). 3. A rotary bucket pan type shrinker according to claim 1 or 2, characterized in that the transmission mechanism is arranged on the housing (1), which is composed of a frequency conversion motor (7) and a reducer (8 )composition. 4. A rotary bucket-pan type shrinking device according to claim 1 or 2, characterized in that the shrinking port (9) is provided with a slide plate for adjusting its diameter. 5. A rotary bucket pan-type shrinker according to claim 4, characterized in that, the number of the shrinkage openings (9) is four to six and evenly distributed in the bucket (4) On the side wall, the length direction of the shrinkage opening (9) is consistent with the axial direction of the bucket pan (4). 6. A rotary bucket-pan type shrinker according to claim 1 or 2, characterized in that the inlet (3) is provided with a flange structure matching the outlet of the crusher. 7. A rotary bucket-pan type shrinker according to claim 6, characterized in that, the outlet of the sample collection chute (5) is provided with a flange structure matching the inlet of the sample collector. 8. A rotary bucket-pan type splitter according to claim 7, characterized in that the housing (1) is a sealed structure. 9. A rotary bucket-pan type shrinker according to claim 1 or 2, characterized in that an inspection door is provided on the side wall of the casing (1).