Mechanism for screening rock debris particles

Abstract

The utility model belongs to the field of rock debris processing equipment, and particularly relates to a mechanism for screening rock debris particles. The winnowing mechanism for screening comprises a main winnowing mechanism body, a first auxiliary winnowing mechanism body and a second auxiliary winnowing mechanism body, the main winnowing mechanism body comprises a discharging bin, a winnowing bin and an equipment frame, one side of the upper end of the discharging bin is communicated with a feeding pipe, and the other side of the upper end of the discharging bin is connected with a ventilation winnowing bin; a centrifugal assembly is installed in the position, communicated with the discharging bin, of the winnowing bin. The discharging bin and the winnowing bin are both installed on the equipment frame, a driving assembly is arranged on the equipment frame, and the driving assembly is connected with a centrifugal assembly in the winnowing bin. The winnowing mechanism for screening is automatically carried out in the whole rock debris screening process in a closed space, manual participation is not needed, and the winnowing mechanism is efficient and environmentally friendly.

Description

Technical Field

[0001] The utility model belongs to the field of cuttings processing equipment, and particularly relates to a mechanism for screening cuttings particles. Background Technique

[0002] Cuttings are fragments of parent rock and are aggregates of minerals that maintain the structure of the parent rock; underground rocks are broken by a drill bit and carried to the surface by a circulating medium, then washed, air-dried, sun-dried, and screened, and finally a series of observations and descriptions are carried out by petroleum geologists;

[0003] In petroleum geology work, the description and analysis of rock cuttings follow a certain method, that is: spread out in a large section and observe longitudinally; look at the color from a distance and check the lithology closely; combine dry and wet and pick out the lithology; name the layers separately and describe them layer by layer. The particle size of rock cuttings represents the size of rock cutting particles. For petroleum geologists, particle size analysis is one of the important ways to study the origin and sedimentary environment of sediments. Terrigenous clastic rocks can be divided into conglomerate (breccia), sandstone, and siltstone according to the particle size of the clasts. Conglomerate with angular edges is called breccia, and it can be further subdivided into megaconglomerate (>256 mm), coarse conglomerate (256 - 64 mm), medium conglomerate (64 - 4 mm), fine conglomerate (4 - 2 mm) according to the gravel size. Sandstone can be further subdivided into very coarse-grained sandstone (2 - 1 mm), coarse-grained sandstone (1 - 0.5 mm), medium-grained sandstone (0.5 - 0.25 mm), fine-grained sandstone (0.25 - 0.1 mm), and very fine-grained sandstone (0.1 - 0.0625 mm) according to the sand grain size. Siltstone can be divided into coarse siltstone (0.0625 - 0.0312 mm) and fine siltstone (0.0312 - 0.0039 mm) according to the particle size;

[0004] In the related technology, for the screening operation of cuttings, it is generally carried out through a particle size sieve; after the operator wears a mask, the cuttings raw material is placed on the surface of the particle size sieve, and then the particle size sieve is shaken for screening; sometimes, in order to save trouble and conduct in-depth particle size screening of cuttings, generally the operator will stack several particle size sieves and hold them with both hands to shake and vibrate;

[0005] This screening method for cuttings is simple to operate, only need to prepare several particle size sieves with different particle sizes and then manually operate, and the use cost is also low; however, the existing problems and defects are also obvious. For example, the cuttings screening is in an exposed environment, and the operator will generate relatively large air pollution during the screening operation. Moreover, in order to improve the screening efficiency, it is necessary to increase the shaking and vibration of the particle size sieve, so that the dust pollution generated in the air is more serious while the amount of raw cuttings escaping and losing is also more; in addition, during the screening process, it is necessary for manual participation to shake multiple particle size sieves at the same time, which is time-consuming and laborious;

[0006] Aiming at the problems in the above background technique, the utility model aims to provide a mechanism for screening cuttings particles. Summary of the Utility Model

[0007] The utility model provides a mechanism for screening rock debris particles, aiming to solve the problems of serious air pollution in the rock debris screening operation and time-consuming and laborious manual participation mentioned in the above background technology.

[0008] The utility model is realized as follows. A mechanism for screening rock debris particles, the air separation mechanism for screening includes:

[0009] The main air separation mechanism, the first secondary air separation mechanism, and the second secondary air separation mechanism. The structural compositions of the main air separation mechanism, the first secondary air separation mechanism, and the second secondary air separation mechanism are all the same;

[0010] Among them, the main air separation mechanism includes a feeding bin, an air separation bin, and an equipment rack. One side of the upper end of the feeding bin is connected to a feed pipe, and the other side of the upper end of the feeding bin is connected to the air separation bin. A centrifugal component is installed inside the position where the air separation bin is connected to the feeding bin; both the feeding bin and the air separation bin are installed on the equipment rack, and a driving component is provided on the equipment rack. The driving component is connected to the centrifugal component inside the air separation bin;

[0011] The lower end of the feeding bin is respectively provided with a first discharge pipe and a second discharge pipe. One end of the first discharge pipe is connected to the inlet end position of the first secondary air separation mechanism through a first feeding pipe; one end of the second discharge pipe is connected to the inlet end position of the second secondary air separation mechanism through a second feeding pipe.

[0012] As a further solution of the utility model: The centrifugal component includes a small conical filter screen and a large conical filter screen. The small conical filter screen is rotatably installed inside the air separation bin. The small conical filter screen is in a funnel shape, and filter holes are distributed on the surface of the small conical filter screen; a feeding door is provided on one side of the feeding bin, and a cover is movably installed at the position of the feeding door. A rubber ring is formed around the periphery of the cover. A guide pipe passes through the axial center position of the cover. One end of the guide pipe is connected to the feed pipe, and the other end of the guide pipe is connected to a discharge port. A large conical filter screen is installed outside the discharge port. The large conical filter screen is in a funnel shape, and filter holes are distributed on the surface of the large conical filter screen. The diameter of the filter holes distributed on the surface of the large conical filter screen is larger than the diameter of the filter holes distributed on the surface of the small conical filter screen; one end of the large conical filter screen is concentrated outside the discharge port, and the other end of the large conical filter screen is installed on a positioning disk fixed on the outside of the guide pipe.

[0013] As a further solution of the utility model: The driving component includes a rotating shaft and a servo motor. One end of the small conical filter screen is provided with a shaft end head. One end of the rotating shaft passes through the inner wall of the air separation bin and the end part at the other end is connected to the shaft end head. A transmission wheel is provided at the other end of the rotating shaft. The middle position of the rotating shaft is rotatably installed at the axial center position of the shaft seal. The shaft seal is located on the equipment rack; the output end of the servo motor is provided with a driving wheel, and a transmission belt is connected between the outside of the driving wheel and the outside of the transmission wheel.

[0014] As a further solution of the present utility model: A first air supply pipe is connected to the first material supply pipe. One end of the first air supply pipe is connected to the first material supply pipe, and the other end of the first air supply pipe is connected to the air outlet position of the first air pump; A second air supply pipe is connected to the second material supply pipe. One end of the second air supply pipe is connected to the second material supply pipe, and the other end of the second air supply pipe is connected to the air outlet position of the second air pump.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] The air separation mechanism for screening has the following advantages compared with the current method of manually screening rock debris raw materials through a particle size sieve:

[0017] By setting the main air separation mechanism, the first secondary air separation mechanism and the second secondary air separation mechanism, the main air separation mechanism includes a feeding bin, an air separation bin and an equipment rack. One side of the upper end of the feeding bin is connected to the feeding pipe, and the other side of the upper end of the feeding bin is connected to the air separation bin. A centrifugal component is installed inside the air separation bin at the position where the air separation bin is connected to the feeding bin; The feeding bin and the air separation bin are both installed on the equipment rack, and a driving component is provided on the equipment rack. The driving component is connected to the centrifugal component inside the air separation bin;

[0018] After the rock debris raw materials enter the air separation bin through the feeding pipe, the driving component is started. The driving component operates to output kinetic energy to drive the centrifugal component inside the air separation bin to operate, thereby realizing centrifugal screening operation on the rock debris entering the air separation bin; After centrifugal screening, the rock debris is divided into two parts. One part is discharged from the position of the first discharge pipe and then transported to the first secondary air separation mechanism through the first material supply pipe for the next stage of air separation; The other part of the rock debris is discharged from the position of the second discharge pipe and then enters the second secondary air separation mechanism through the second material supply pipe for the next stage of air separation. In this way, the raw material rock debris can be screened according to four different particle size requirements;

[0019] Moreover, the entire rock debris screening process is fully automated and carried out in a closed space, without the need for manual participation, which is efficient and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of an apparatus for screening rock debris particles of the present utility model.

[0021] Figure 2 It is a schematic structural diagram of the air separation bin of an apparatus for screening rock debris particles of the present utility model.

[0022] Figure 3 It is a schematic structural diagram of the feeding assembly of an apparatus for screening rock debris particles of the present utility model.

[0023] Figure 4Internal structure schematic diagram of the air separation bin of a mechanism for screening rock debris particles of the present utility model.

[0024] In the figure: 1 - Feed pipe, 2 - Discharge bin, 3 - Air separation bin, 4 - Rotating shaft, 5 - Shaft seal, 6 - Transmission wheel, 7 - Conveyor belt, 8 - Equipment rack, 9 - Driving wheel, 10 - Servo motor, 11 - Second discharge pipe, 12 - First discharge pipe, 13 - First air supply pipe, 14 - First air pump, 15 - First feeding pipe, 16 - Second air pump, 17 - Second air supply pipe, 18 - Second feeding pipe, 19 - Auxiliary air separation mechanism one, 20 - Auxiliary air separation mechanism two, 21 - Sealing cover, 22 - Positioning disk, 23 - Large conical filter screen, 24 - Rubber ring, 25 - Discharge port, 26 - Small conical filter screen, 27 - Shaft end, 28 - Guide pipe. Specific embodiments

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model.

[0026] Generally, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0027] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] Please refer to Figure 1 , the present utility model provides a technical solution: a mechanism for screening rock debris particles. The air separation mechanism for screening includes:

[0031] A main air separation mechanism, a first secondary air separation mechanism 19, and a second secondary air separation mechanism 20. The structural compositions of the main air separation mechanism, the first secondary air separation mechanism 19, and the second secondary air separation mechanism 20 are all the same;

[0032] Among them, the main air separation mechanism includes a feeding bin 2, an air separation bin 3, and an equipment rack 8. One side of the upper end of the feeding bin 2 is connected to a feeding pipe 1. The feeding pipe 1 connected to one side of the upper end of the feeding bin 2 is used for feeding, and the rock debris to be air separated enters. The other side of the upper end of the feeding bin 2 is connected to the air separation bin 3. A centrifugal component is installed inside the air separation bin 3 at the position where the air separation bin 3 is connected to the feeding bin 2. Through the provided centrifugal component, the rock debris entering the air separation bin 3 can be centrifugally screened. Both the feeding bin 2 and the air separation bin 3 are installed on the equipment rack 8. A driving component is provided on the equipment rack 8, and the driving component is connected to the centrifugal component inside the air separation bin 3. By starting the driving component to output kinetic energy, the centrifugal component inside the air separation bin 3 can be driven to operate, thereby realizing the centrifugal screening operation on the rock debris entering the air separation bin 3;

[0033] The lower end of the feeding bin 2 is respectively provided with a first discharge pipe 12 and a second discharge pipe 11. One end of the first discharge pipe 12 is connected to the inlet end position of the first secondary air separation mechanism 19 through a first feeding pipe 15; one end of the second discharge pipe 11 is connected to the inlet end position of the second secondary air separation mechanism 20 through a second feeding pipe 18;

[0034] In an embodiment of the present utility model, when using the air separation mechanism for screening, the rock debris raw material enters the air separation bin 3 through the feeding pipe 1; after the rock debris raw material enters the air separation bin 3, the driving component is started, and the driving component operates to output kinetic energy to drive the centrifugal component inside the air separation bin 3 to operate, thereby realizing the centrifugal screening operation on the rock debris entering the air separation bin 3;

[0035] The cuttings after centrifugal screening are divided into two parts. One part is discharged from the position of the first discharge pipe 12 and then conveyed through the first feeding pipe 15 to the inside of the first secondary air separation mechanism 19 for the next-stage air separation; while the other part of the cuttings is discharged from the position of the second discharge pipe 11 and then enters the second secondary air separation mechanism 20 through the second feeding pipe 18 for the next-stage air separation. In this way, the raw cuttings can be screened according to four different particle size requirements;

[0036] Moreover, the whole cuttings screening process is fully automated and carried out in a closed space, without manual participation, which is efficient and environmentally friendly;

[0037] Please refer to Figure 1 、 Figure 2 and Figure 3 In an embodiment of the present invention, the centrifugal component includes a small conical filter screen 26 and a large conical filter screen 23. The small conical filter screen 26 is rotatably installed inside the air separation chamber 3. The small conical filter screen 26 is in a funnel shape, and filter holes are distributed on the surface of the small conical filter screen 26; a feeding door is opened on one side of the feeding bin 2, and a cover 21 is movably installed at the position of the feeding door. A rubber ring 24 is formed around the periphery of the cover 21. A guide pipe 28 passes through the axial center position of the cover 21. One end of the guide pipe 28 is connected to the feeding pipe 1, and the other end of the guide pipe 28 is connected to the discharge port 25. A large conical filter screen 23 is installed outside the discharge port 25. The large conical filter screen 23 is in a funnel shape, and filter holes are distributed on the surface of the large conical filter screen 23. The diameter of the filter holes distributed on the surface of the large conical filter screen 23 is larger than the diameter of the filter holes distributed on the surface of the small conical filter screen 26; one end of the large conical filter screen 23 is concentrated outside the discharge port 25, and the other end of the large conical filter screen 23 is installed on the positioning disk 22 fixed on the outside of the guide pipe 28;

[0038] In an embodiment of the present invention, when starting the centrifugal component to perform centrifugal screening operations on the cuttings raw materials entering the inside of the air separation chamber 3, first push the cover 21 to seal the position of the feeding door opened on one side of the feeding bin 2, so that the large conical filter screen 23 installed on one side of the positioning disk 22 is located inside the small conical filter screen 26;

[0039] Then, the cuttings raw materials conveyed through the feeding pipe 1 are guided and conveyed along the guide pipe 28 until finally discharged from the position of the discharge port 25 and enter the inside of the small conical filter screen 26; at this time, the small conical filter screen 26 rotates at a high speed under the kinetic energy output by the driving component, driving the cuttings raw materials inside the small conical filter screen 26 to perform centrifugal motion. Part of the raw materials pass through the filter holes on the surface of the small conical filter screen 26 and are finally discharged concentratedly from the position of the second discharge pipe 11, and the remaining raw materials pass through the filter holes on the surface of the large conical filter screen 23 and are finally discharged concentratedly from the position of the first discharge pipe 12;

[0040] Please refer to Figure 1 and Figure 4, in an embodiment of the present utility model, the drive assembly includes a rotating shaft 4 and a servo motor 10. One end of the small conical filter screen 26 is provided with a shaft end 27. One end of the rotating shaft 4 passes through the inner wall of the air separation chamber 3 and the end part of the other end is connected to the shaft end 27. The other end of the rotating shaft 4 is provided with a transmission wheel 6. The middle position of the rotating shaft 4 is rotatably installed at the axial center position of the shaft seal 5. The shaft seal 5 is located on the equipment frame 8. The output end of the servo motor 10 is provided with a driving wheel 9. A conveyor belt 7 is connected between the outside of the driving wheel 9 and the outside of the transmission wheel 6;

[0041] In an embodiment of the present utility model, when starting the drive assembly to drive the centrifugal assembly inside the air separation chamber 3 to rotate at a high speed, start the servo motor 10. The servo motor 10 outputs kinetic energy to drive the driving wheel 9 to rotate at a high speed. Since a conveyor belt 7 is connected between the outside of the driving wheel 9 and the outside of the transmission wheel 6, when the driving wheel 9 rotates, the transmission wheel 6 will be driven to rotate through the conveyor belt 7. Furthermore, the rotating shaft 4 installed at one end of the transmission wheel 6 rotates at a high speed, and finally the centrifugal assembly installed at one end of the rotating shaft 4 rotates at a high speed inside the air separation chamber 3 to perform the rock debris centrifugal screening operation;

[0042] Please refer to Figure 1 , in an embodiment of the present utility model, a first air supply pipe 13 is connected to the first feed pipe 15. One end of the first air supply pipe 13 is connected to the first feed pipe 15, and the other end of the first air supply pipe 13 is connected to the air outlet position of the first air pump 14; A second air supply pipe 17 is connected to the second feed pipe 18. One end of the second air supply pipe 17 is connected to the second feed pipe 18, and the other end of the second air supply pipe 17 is connected to the air outlet position of the second air pump 16;

[0043] The screened rock debris raw materials discharged from the lower end of the feeding bin 2 can respectively cause air flow acceleration inside the first feed pipe 15 and the second feed pipe 18 by starting the first air pump 14 and the second air pump 16, so that the rock debris raw materials quickly enter the first secondary air separation mechanism 19 and the second secondary air separation mechanism 20 for the next stage of centrifugal screening operation;

[0044] The working principle of the present utility model is:

[0045] The rock debris raw materials enter the inside of the air separation chamber 3 through the feed pipe 1; after the rock debris raw materials enter the inside of the air separation chamber 3, start the drive assembly. The drive assembly operates to output kinetic energy to drive the centrifugal assembly inside the air separation chamber 3 to operate, thereby performing the centrifugal screening operation on the rock debris entering the inside of the air separation chamber 3;

[0046] The cuttings after centrifugal screening are divided into two parts. One part is discharged from the position of the first discharge pipe 12 and then conveyed through the first feeding pipe 15 to the inside of the first secondary air separation mechanism 19 for the next-stage air separation; while the other part of the cuttings is discharged from the position of the second discharge pipe 11 and then enters the second secondary air separation mechanism 20 through the second feeding pipe 18 for the next-stage air separation. In this way, the screening of the raw cuttings can be achieved with four different particle size requirements.

[0047] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An apparatus for screening cuttings particles, comprising: The main air separation mechanism, the first secondary air separation mechanism (19) and the second secondary air separation mechanism (20), and the structural compositions of the main air separation mechanism, the first secondary air separation mechanism (19) and the second secondary air separation mechanism (20) are all the same; it is characterized in that: The main air separation mechanism includes a feeding bin (2), an air separation bin (3) and an equipment rack (8). One side of the upper end of the feeding bin (2) is connected to a feeding pipe (1), and the other side of the upper end of the feeding bin (2) is connected to the air separation bin (3). A centrifugal component is installed inside the air separation bin (3) at the position where it is connected to the feeding bin (2); both the feeding bin (2) and the air separation bin (3) are installed on the equipment rack (8), and a driving component is provided on the equipment rack (8), and the driving component is connected to the centrifugal component inside the air separation bin (3); The lower end of the feeding bin (2) is respectively provided with a first discharge pipe (12) and a second discharge pipe (11). One end of the first discharge pipe (12) is connected to the inlet end position of the first secondary air separation mechanism (19) through a first feeding pipe (15); one end of the second discharge pipe (11) is connected to the inlet end position of the second secondary air separation mechanism (20) through a second feeding pipe (18).

2. The mechanism for screening cuttings particles according to claim 1, characterized in that: The centrifugal component includes a small conical filter screen (26) and a large conical filter screen (23). The small conical filter screen (26) is rotatably installed inside the air separation bin (3). The small conical filter screen (26) is in a funnel shape, and filter holes are distributed on the surface of the small conical filter screen (26); a feeding door is provided on one side of the feeding bin (2), and a cover (21) is movably installed at the feeding door position. A rubber ring (24) is formed around the periphery of the cover (21). A guide pipe (28) passes through the axial center position of the cover (21). One end of the guide pipe (28) is connected to the feeding pipe (1), and the other end of the guide pipe (28) is connected to a discharge port (25). A large conical filter screen (23) is installed outside the discharge port (25). The large conical filter screen (23) is in a funnel shape, and filter holes are distributed on the surface of the large conical filter screen (23); one end of the large conical filter screen (23) is concentrated outside the discharge port (25), and the other end of the large conical filter screen (23) is installed on a positioning disk (22) fixed on the outside of the guide pipe (28).

3. The mechanism for screening cuttings particles according to claim 2, wherein: The diameter of the filter holes distributed on the surface of the large conical filter screen (23) is larger than the diameter of the filter holes distributed on the surface of the small conical filter screen (26).

4. The mechanism for screening cuttings particles according to claim 2, characterized in that: The driving component includes a rotating shaft (4) and a servo motor (10). One end of the small conical filter screen (26) is provided with a shaft end (27). One end of the rotating shaft (4) passes through the inner wall of the air separation bin (3) and the end part is connected to the shaft end (27). The other end of the rotating shaft (4) is provided with a transmission wheel (6). The middle position of the rotating shaft (4) is rotatably installed at the axial center position of a shaft seal (5), and the shaft seal (5) is located on the equipment rack (8); the output end of the servo motor (10) is provided with a driving wheel (9), and a conveyor belt (7) is connected between the outside of the driving wheel (9) and the outside of the transmission wheel (6).

5. The mechanism for screening cuttings particles as claimed in claim 1, wherein: A first air supply pipe (13) is connected to the first material supply pipe (15). One end of the first air supply pipe (13) is connected to the first material supply pipe (15), and the other end of the first air supply pipe (13) is connected to the air outlet position of the first air pump (14); A second air supply pipe (17) is connected to the second material supply pipe (18). One end of the second air supply pipe (17) is connected to the second material supply pipe (18), and the other end of the second air supply pipe (17) is connected to the air outlet position of the second air pump (16).

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