Coal dressing cyclone

Abstract

The utility model discloses a coal dressing cyclone, which belongs to the technical field of coal dressing and comprises a coal dressing cyclone body, a speed control component and a connecting component. The coal dressing cyclone body comprises a cylindrical shell, a conical container, a feeding pipe, an overflow pipe and a desilting opening; the conical container is fixedly arranged on the bottom side of the cylindrical shell and is communicated with the cylindrical shell; the feeding pipe is fixedly arranged on the cylindrical shell and is communicated with the cylindrical shell; the overflow pipe is fixedly arranged on the top side of the cylindrical shell and communicates with the cylindrical shell. The desilting opening is fixedly formed in the side, away from the cylindrical shell, of the conical container; the speed control assembly is arranged on the feeding pipe; the speed control assembly comprises a feeding pipe, a speed control block, a speed control groove and a guide groove; the feeding pipe is connected with the feeding pipe through a connecting assembly. The two speed control blocks are symmetrically and fixedly arranged in the feeding pipe; a plurality of speed control grooves are uniformly formed in the opposite surfaces of the two speed control blocks; the coal dressing cyclone has the advantages that the structure is ingenious, the design is reasonable, the flow velocity and the pressure of fluid can be reduced, and the practicability is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal preparation, in particular to a coal preparation cyclone. Background Technique

[0002] Coal is mainly composed of elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus. The total sum of carbon, hydrogen and oxygen accounts for more than 95% of the organic matter. It is a very important energy source and also an important raw material for the metallurgical and chemical industries. There are several classifications including lignite, bituminous coal, anthracite and semi-anthracite. The cyclone is a common separation and classification equipment, usually using the principle of centrifugal sedimentation. Due to the cyclone having no moving parts and high separation efficiency, it can be used as the first choice equipment for coal preparation.

[0003] In order to improve the efficiency of coal preparation in coal mines, a coal preparation cyclone is needed to prepare coal for coal mines. However, in the existing technology, since it is necessary to rely on the fluid flow velocity and pressure entering the coal preparation cyclone to drive the fluid to rotate and classify, therefore, it is more sensitive to the fluctuation of the fluid flow velocity and pressure entering the coal preparation cyclone. Once the flow velocity and pressure fluctuate greatly, it is easy to cause the instability of the quality of the finished product obtained from coal preparation, thus affecting the subsequent processing of the coal preparation finished product. Content of the Utility Model

[0004] The purpose of the utility model is to provide a coal preparation cyclone to solve the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a coal preparation cyclone, including a coal preparation cyclone body, a speed control component and a connection component; wherein, the coal preparation cyclone body includes a cylindrical shell, a conical container, a feed pipe, an overflow pipe and a sand settling port; the conical container is fixedly arranged at the bottom side of the cylindrical shell and is communicated with the cylindrical shell; the feed pipe is fixedly arranged on the cylindrical shell and is communicated with the cylindrical shell; the overflow pipe is fixedly arranged at the top side of the cylindrical shell and is communicated with the cylindrical shell; the sand settling port is fixedly arranged on the side of the conical container away from the cylindrical shell; the speed control component is arranged on the feed pipe; wherein, the speed control component includes a feed pipe, a speed control block, a speed control groove and a guiding groove; the feed pipe is connected with the feed pipe through a connection component; two speed control blocks are symmetrically and fixedly arranged in the feed pipe; a number of speed control grooves are linearly arranged on the opposite surfaces of the two speed control blocks; wherein, the speed control grooves on the two speed control blocks are arranged in a staggered manner; guiding grooves are arranged on the sides of the two speed control blocks away from the feed pipe.

[0006] As a preferred implementation scheme, the speed control groove includes a drainage part and a reflux part; the drainage part is of an inclined structure, and the opening direction formed by the two drainage parts is arranged towards the direction of the feed pipe.

[0007] As a preferred implementation scheme, the reflux part is of an arc structure.

[0008] As a preferred embodiment, the guiding groove is a frustum-shaped structure, and the dimension of the guiding groove on the side close to the feed pipe is smaller than the dimension of the guiding groove on the side far from the feed pipe.

[0009] As a preferred embodiment, the connecting assembly includes a connecting cylinder, a fixing groove, a movable groove, a movable ball, an annular groove, a fixing sleeve, a movable cylinder and a spring; the connecting cylinder is fixedly arranged on the input end of the feed pipe; a fixing groove is formed on the side of the connecting cylinder far from the feed pipe; wherein, the feeding pipe is inserted and matched with the fixing groove; a plurality of movable grooves are formed in the fixing groove in an annular array; the movable ball is movably arranged in the movable groove, and the spherical surface of the movable ball extends to the outside through the movable groove; wherein, the spherical surface of the movable ball contacts with the inner wall of the movable groove; an annular groove is formed on the circumferential surface of the feeding pipe; wherein, the movable ball is clamped and matched with the annular groove; the fixing sleeve is sleeved on the connecting cylinder; the movable cylinder is slidably sleeved on the fixing sleeve; wherein, the inner wall of the movable cylinder contacts with the spherical surface of the movable ball; the spring is sleeved on the connecting cylinder, and two ends of the spring are respectively fixedly connected with the fixing sleeve and the inner wall of the movable cylinder.

[0010] As a preferred embodiment, the cross-section of the annular groove is an arc-shaped structure.

[0011] As a preferred embodiment, the cross-section of the movable cylinder is an L-shaped structure.

[0012] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0013] For this coal preparation cyclone, by arranging a speed control assembly, during use, first, connect the fluid conveying pipe with the input end of the feeding pipe, and make the fluid flow in the feeding pipe. After being guided by the guiding groove, it enters the drainage part, and after being drained by the drainage part, it will flow back in the reflux part, so that the fluids can collide with each other to reduce the flow velocity pressure of the fluid until the fluid enters the cylindrical shell from the feed pipe, and the fluid makes a rotary motion in the cylindrical shell. Under the combined action of centrifugal force and gravity, the coarse particles in the fluid move downward in a spiral shape along the inner wall of the conical container and finally are discharged from the sand settling port. The materials with smaller density pass through the separation interface and move upward in a spiral shape along the central part and finally are discharged from the overflow pipe. Compared with the prior art, the structure of the present utility model is ingenious and reasonable in design, can reduce the flow velocity pressure of the fluid, and has strong practicability.

[0014] For this coal preparation cyclone, by setting up the connection component, when the feed pipe needs to be replaced, move the movable cylinder so that the movable cylinder slides on the fixed sleeve, causing the spring to contract under force until the inner wall of the movable cylinder no longer contacts the spherical surface of the movable ball. At this time, move the feed pipe so that the feed pipe moves, causing the inner wall of the annular groove to squeeze the spherical surface of the movable ball, causing the movable ball to slide in the movable groove until the spherical surface of the movable ball contacts the circumferential surface of the feed pipe. At this time, the movable ball no longer slides in the movable groove until the feed pipe is disengaged from the insertion into the fixed groove. During installation, insert the feed pipe into the fixed groove until the end face of the feed pipe contacts the inner wall of the fixed groove. At this time, release the movable cylinder, the spring is no longer under force and begins to expand, causing the movable cylinder to slide in the opposite direction on the fixed sleeve until the inner wall of the movable cylinder contacts the spherical surface of the movable ball. At this time, the movable ball is clamped with the annular groove, and the replacement of the feed pipe is completed. Brief Description of the Drawings

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is the overall structural schematic diagram of the present invention;

[0017] Figure 2 is the overall structural sectional view of the present invention;

[0018] Figure 3 is the partial structural split sectional view of the present invention;

[0019] Figure 4 is the Figure 2 enlarged schematic view of part A in the present invention.

[0020] Description of the Reference Numerals in the Drawings:

[0021] In the figure:

[0022] 1, coal preparation cyclone body; 2, speed control component; 3, connection component;

[0023] 101, cylindrical outer shell; 102, conical container; 103, feed pipe; 104, overflow pipe; 105, sand settling port;

[0024] 201, feed pipe; 202, speed control block; 203, speed control groove; 204, guiding groove;

[0025] 2031, drainage part; 2032, reflux part;

[0026] 301. Connecting cylinder; 302. Fixed groove; 303. Movable groove; 304. Movable ball; 305. Annular groove; 306. Fixed sleeve; 307. Movable cylinder; 308. Spring. Detailed implementation mode

[0027] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0028] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown in the present utility model, and are hereby explained together.

[0029] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., depending on actual needs.

[0030] Please refer to Figures 1 to 4 As shown, this embodiment includes a coal preparation cyclone body 1, a speed control component 2 and a connection component 3; among them, the coal preparation cyclone body 1 includes a cylindrical outer shell 101, a conical container 102, a feed pipe 103, an overflow pipe 104 and a sand settling port 105; the conical container 102 is fixedly arranged on the bottom side of the cylindrical outer shell 101 and is communicated with the cylindrical outer shell 101; the feed pipe 103 is fixedly arranged on the cylindrical outer shell 101 and is communicated with the cylindrical outer shell 101; the overflow pipe 104 is fixedly arranged on the top side of the cylindrical outer shell 101 and is communicated with the cylindrical outer shell 101; the sand settling port 105 is fixedly arranged on the side of the conical container 102 away from the cylindrical outer shell 101;

[0031] The speed control component 2 is arranged on the feed pipe 103; among them, the speed control component 2 includes a feed pipe 201, a speed control block 202, a speed control groove 203 and a guiding groove 204; the feed pipe 201 is connected to the feed pipe 103 through the connection component 3; two speed control blocks 202 are symmetrically fixedly arranged in the feed pipe 201; four speed control grooves 203 are linearly arranged on the opposite surfaces of the two speed control blocks 202; among them, the speed control grooves 203 on the two speed control blocks 202 are arranged staggeredly; among them, the speed control groove 203 includes a drainage part 2031 and a reflux part 2032; the drainage part 2031 is of an inclined structure, and the opening direction formed by the two drainage parts 2031 is arranged towards the direction of the feed pipe 103, and the reflux part 2032 is of an arc structure; guiding grooves 204 are formed on the sides of the two speed control blocks 202 away from the feed pipe 103; the guiding groove 204 is of a frustum-shaped structure, and the size of the guiding groove 204 near the feed pipe 103 is smaller than the size of the guiding groove 204 away from the feed pipe 103.

[0032] The utility model reduces the flow velocity pressure of fluid by setting a speed control component 2. When in use, first, a fluid delivery pipe is connected to the input end of the feeding pipe 201, and the fluid flows through the feeding pipe 201. After being guided by the guiding groove 204, the fluid enters the drainage part 2031, and after being drained by the drainage part 2031, the fluid will flow back in the reflux part 2032, so that the fluids can collide with each other to reduce the flow velocity pressure of the fluid until the fluid enters the cylindrical housing 101 from the feeding pipe 103, and the fluid makes a rotary motion in the cylindrical housing 101. Under the combined action of centrifugal force and gravity, the coarser particles in the fluid move downward in a spiral shape along the inner wall of the conical container 102 and finally are discharged from the sand settling port 105. The materials with lower density pass through the separation interface and move upward in a spiral shape along the central part and finally are discharged from the overflow pipe 104. Compared with the prior art, the utility model has a clever structure and reasonable design, can reduce the flow velocity pressure of the fluid, and has strong practicability.

[0033] As a preferred embodiment, the connection component 3 includes a connection cylinder 301, a fixed groove 302, a movable groove 303, a movable ball 304, an annular groove 305, a fixed sleeve 306, a movable cylinder 307 and a spring 308. The connection cylinder 301 is fixedly arranged on the input end of the feeding pipe 103. A fixed groove 302 is formed on the side of the connection cylinder 301 away from the feeding pipe 103. The feeding pipe 201 is inserted and matched with the fixed groove 302. Sealing gaskets are arranged on the end face of the feeding pipe 201 and the inner wall of the fixed groove 302. A plurality of movable grooves 303 are formed in the fixed groove 302 in an annular array. The movable ball 304 is movably arranged in the movable groove 303, and the spherical surface of the movable ball 304 extends to the outside through the movable groove 303. The spherical surface of the movable ball 304 contacts the inner wall of the movable groove 303. An annular groove 305 is formed on the circumferential surface of the feeding pipe 201. The movable ball 304 is clamped and matched with the annular groove 305. The fixed sleeve 306 is sleeved on the connection cylinder 301. The movable cylinder 307 is slidably sleeved on the fixed sleeve 306. The inner wall of the movable cylinder 307 contacts the spherical surface of the movable ball 304. The spring 308 is sleeved on the connection cylinder 301, and both ends of the spring 308 are fixedly connected to the fixed sleeve 306 and the inner wall of the movable cylinder 307 respectively. The cross section of the annular groove 305 is an arc structure. The cross section of the movable cylinder 307 is an L-shaped structure. When the end face of the feeding pipe 201 contacts the inner wall of the fixed groove 302, the movable ball 304 can be clamped with the annular groove 305.

[0034] The utility model is provided with a connecting component 3. When the feed pipe 201 needs to be replaced, the movable cylinder 307 is moved to slide the movable cylinder 307 on the fixed sleeve 306, so that the spring 308 is stressed and contracted until the inner wall of the movable cylinder 307 no longer contacts the spherical surface of the movable ball 304. At this time, the feed pipe 201 is moved to make the feed pipe 201 move, so that the inner wall of the annular groove 305 presses the spherical surface of the movable ball 304, and the movable ball 304 slides in the movable groove 303 until the spherical surface of the movable ball 304 contacts the circumferential surface of the feed pipe 201. At this time, the movable ball 304 no longer slides in the movable groove 303 until the feed pipe 201 is disengaged from the insertion connection with the fixed groove 302. During installation, the feed pipe 201 is inserted into the fixed groove 302 until the end face of the feed pipe 201 contacts the inner wall of the fixed groove 302. At this time, the movable cylinder 307 is released, the spring 308 is no longer stressed and starts to expand, so that the movable cylinder 307 slides on the fixed sleeve 306 in the opposite direction until the inner wall of the movable cylinder 307 contacts the spherical surface of the movable ball 304. At this time, the movable ball 304 is clamped with the annular groove 305, and the replacement of the feed pipe 201 is completed.

[0035] The coal preparation cyclone body 1 is a conventional instrument, and its working principle, dimensions and models are irrelevant to the problems solved by this application, so no more description will be given. The control mode of the utility model is controlled by a controller. The control circuit of the controller can be realized by simple programming of those skilled in the art. The provision of power also belongs to the common knowledge in this field. And the utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the utility model will not be explained in detail.

[0036] Working principle

[0037] When the coal preparation cyclone is in use, first, the fluid conveying pipe is connected to the input end of the feed pipe 201, and the fluid flows through the feed pipe 201. After being guided by the guiding groove 204, it enters the drainage part 2031. After being drained by the drainage part 2031, it will flow back in the reflux part 2032, so that the fluids can collide with each other to reduce the flow velocity pressure of the fluid until the fluid enters the cylindrical shell 101 from the feed pipe 103, and the fluid makes a rotary motion in the cylindrical shell 101. Under the combined action of centrifugal force and gravity, the coarse particles in the fluid move downward in a spiral shape along the inner wall of the conical container 102 and finally are discharged from the sand settling port 105. The materials with smaller density pass through the separation interface and move upward in a spiral shape along the central part and finally are discharged from the overflow pipe 104;

[0038] When the feed pipe 201 needs to be replaced, move the movable cylinder 307 so that the movable cylinder 307 slides on the fixed sleeve 306, causing the spring 308 to contract under force until the inner wall of the movable cylinder 307 no longer contacts the spherical surface of the movable ball 304. At this time, move the feed pipe 201 so that the feed pipe 201 moves, causing the inner wall of the annular groove 305 to squeeze the spherical surface of the movable ball 304, causing the movable ball 304 to slide in the movable groove 303 until the spherical surface of the movable ball 304 contacts the circumferential surface of the feed pipe 201. At this time, the movable ball 304 no longer slides in the movable groove 303 until the feed pipe 201 is disengaged from the insertion into the fixed groove 302. During installation, insert the feed pipe 201 into the fixed groove 302 and cause the end of the feed pipe 201 to squeeze the spherical surface of the movable ball 304, causing the movable ball 304 to slide in the movable groove 303 until the spherical surface of the movable ball 304 contacts the circumferential surface of the feed pipe 201. At this time, the movable ball 304 no longer slides in the movable groove 303 until the end face of the feed pipe 201 contacts the inner wall of the fixed groove 302. At this time, release the movable cylinder 307, the spring 308 is no longer under force and begins to expand, causing the movable cylinder 307 to slide in the opposite direction on the fixed sleeve 306 until the inner wall of the movable cylinder 307 contacts the spherical surface of the movable ball 304. At this time, the movable ball 304 is engaged with the annular groove 305, and the replacement of the feed pipe 201 is completed.

[0039] It should be noted that in this article, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal preparation cyclone, characterized in that, Including: Coal preparation cyclone body (1); Among them, the coal preparation cyclone body (1) includes a cylindrical shell (101), a conical container (102), a feed pipe (103), an overflow pipe (104) and a sand settling port (105); the conical container (102) is fixedly arranged at the bottom side of the cylindrical shell (101) and communicates with the cylindrical shell (101); the feed pipe (103) is fixedly arranged on the cylindrical shell (101) and communicates with the cylindrical shell (101); the overflow pipe (104) is fixedly arranged at the top side of the cylindrical shell (101) and communicates with the cylindrical shell (101); the sand settling port (105) is fixedly arranged on the side of the conical container (102) away from the cylindrical shell (101). Speed control component (2), arranged on the feed pipe (103); Among them, the speed control component (2) includes a feed pipe (201), a speed control block (202), a speed control groove (203) and a guiding groove (204); the feed pipe (201) is connected to the feed pipe (103) through a connection component (3); two speed control blocks (202) are symmetrically and fixedly arranged in the feed pipe (201); a number of speed control grooves (203) are linearly arranged on the opposite surfaces of the two speed control blocks (202); among them, the speed control grooves (203) on the two speed control blocks (202) are staggered; guiding grooves (204) are arranged on the sides of the two speed control blocks (202) away from the feed pipe (103).

2. The coal preparation cyclone according to claim 1, wherein, The speed control groove (203) includes a drainage part (2031) and a reflux part (2032); the drainage part (2031) is of an inclined structure, and the opening direction formed by the two drainage parts (2031) is arranged towards the direction of the feed pipe (103).

3. The coal preparation cyclone according to claim 2, wherein The reflux part (2032) is of an arc structure.

4. A coal preparation cyclone according to claim 2, wherein, The guiding groove (204) is of a frustum-shaped structure, and the size of the guiding groove (204) near the feed pipe (103) is smaller than the size of the guiding groove (204) away from the feed pipe (103).

5. The coal preparation cyclone according to claim 4, characterized in that, The connection component (3) includes: A connection cylinder (301), fixedly arranged on the input end of the feed pipe (103); A fixing groove (302) is arranged on the side of the connection cylinder (301) away from the feed pipe (103); Among them, the feed pipe (201) is in plug-in fit with the fixing groove (302); A number of movable grooves (303) are annularly arranged in the fixing groove (302); Movable balls (304), movably arranged in the movable grooves (303), and the spherical surfaces of the movable balls (304) extend to the outside through the movable grooves (303); Among them, the spherical surfaces of the movable balls (304) are in contact with the inner walls of the movable grooves (303); An annular groove (305) is arranged on the circumferential surface of the feed pipe (201); Among them, the movable balls (304) are in snap fit with the annular groove (305); A fixing sleeve (306), sleeved on the connection cylinder (301); A movable cylinder (307), slidably sleeved on the fixing sleeve (306); Among them, the inner wall of the movable cylinder (307) is in contact with the spherical surfaces of the movable balls (304); The spring (308) is sleeved on the connecting cylinder (301), and both ends of the spring (308) are fixedly connected to the inner walls of the fixed sleeve (306) and the movable cylinder (307) respectively.

6. A coal preparation cyclone according to claim 5, characterized in that, The cross-section of the annular groove (305) is an arc structure.

7. A coal preparation cyclone according to claim 5, characterized in that, The cross-section of the movable cylinder (307) is an L-shaped structure.

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