Saddle type underflow nozzle shield of dense medium cyclone

Abstract

The utility model relates to the technical field of hydrocyclones, in particular to a heavy medium hydrocyclone saddle type underflow nozzle shield which comprises a hydrocyclone body, the upper end of an underflow box is detachably connected with an underflow box cover plate through a lock catch, and the lower end face of the underflow box cover plate is fixedly connected with two hanging bracket steel plates which are distributed front and back and located in the underflow box. A buffer box located below the hanging bracket steel plate is arranged in the underflow box, the end, close to the cyclone body, of the buffer box is of an opening structure, the upper end face of the buffer box is fixedly connected with a connecting block corresponding to the hanging bracket steel plate, and the upper end face of the connecting block is provided with a limiting groove matched with the hanging bracket steel plate. High-density materials enter the underflow box through the cyclone body, the high-density materials directly enter the buffer box and directly impact the impact plate due to the fact that the end, close to the cyclone body, of the buffer box is of an opening structure, the underflow box is protected through the buffer box, and damage to the inner wall of the underflow box is effectively avoided; and then the high-density materials are discharged from the lower end of the underflow box.

Description

Technical Field

[0001] The utility model relates to the technical field of cyclones, in particular to a saddle-shaped underflow nozzle shield for a heavy medium cyclone. Background Technique

[0002] The heavy medium cyclone is a cylindrical-conical heavy medium cyclone. It is currently the most widely used fine coal heavy medium separation equipment. Under the action of internal and external spiral flows, this cyclone makes high-density materials descend along the external spiral flow to the underflow port and be discharged.

[0003] During the use of the existing heavy medium cyclone, when the heavy medium cyclone discharges materials from the underflow port, high-density materials will directly be discharged into the underflow box, scouring the inner wall of the underflow box. Under the action of micro-cutting wear, surface fatigue wear, and corrosive wear of the high-density materials on the inner wall of the underflow box, the wall of the underflow box is often damaged. Repairing the underflow box is time-consuming and laborious, and the maintenance time after repair is short, which invisibly increases the input of manpower and material resources and the impact on normal production. Content of the Utility Model

[0004] The purpose of the utility model is to provide a saddle-shaped underflow nozzle shield for a heavy medium cyclone, which has the characteristics of avoiding damage to the wall of the underflow box and improving the equipment utilization rate.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A saddle-shaped underflow nozzle shield for a heavy medium cyclone, including a cyclone body. One end of the cyclone body is communicated with an underflow box. The upper end of the underflow box is detachably connected with an underflow box cover plate through a buckle. Two hanger steel plates which are distributed front and back and are located inside the underflow box are fixedly connected to the lower end face of the underflow box cover plate;

[0006] A buffer box is arranged inside the underflow box and is located below the hanger steel plates. One end of the buffer box close to the cyclone body is of an open structure. Impact plates are fixedly connected to the inner wall of the buffer box. Connection blocks corresponding to the hanger steel plates are fixedly connected to the upper end face of the buffer box. Limit grooves matching with the hanger steel plates are opened on the upper end faces of the connection blocks. A clamping mechanism matched with the limit grooves is arranged inside the hanger steel plates.

[0007] To fix the buffer box to the lower end of the hanger steel plate, as a preferred saddle-shaped underflow nozzle shield for a heavy medium cyclone of the utility model, the clamping mechanism includes holes penetrating through the inside of the hanger steel plates. Two card pins which are distributed left and right are slidably connected inside the holes. A spring is fixedly connected between the two card pins. Card slots matching with the card pins are opened on the left and right inner side walls of the limit grooves.

[0008] In order to remove the buffer box from the lower end of the hanger steel plate, as an optimization of the saddle-shaped underflow nozzle shield of the heavy medium cyclone of the present utility model, the engaging mechanism further includes two chutes opened at the upper end inside the hole. A moving rod is slidably connected inside the chute. The lower end of the moving rod is provided with an inclined surface structure, and an inclined groove matching the lower end of the moving rod is opened on the upper end surface of the pin.

[0009] In order to facilitate the extrusion of the pin into the hole, as an optimization of the saddle-shaped underflow nozzle shield of the heavy medium cyclone of the present utility model, the other end of the pin is provided with an inclined surface structure, and the opening of the limiting groove is provided with an inclined surface structure matching the other end of the pin.

[0010] In order to drive multiple moving rods to move downward simultaneously, as an optimization of the saddle-shaped underflow nozzle shield of the heavy medium cyclone of the present utility model, through holes communicating with the chutes are opened on the opposite side walls of the two hanger steel plates. A lower pressing plate passing through the through hole is fixedly connected between the front and rear opposite moving rods, and a connecting rod is fixedly connected between the two lower pressing plates.

[0011] In order to increase the range of materials for manufacturing the impact plate, as an optimization of the saddle-shaped underflow nozzle shield of the heavy medium cyclone of the present utility model, the impact plate can be made of any wear-resistant and impact-resistant material.

[0012] In order to facilitate the lifting of the underflow box cover plate, as an optimization of the saddle-shaped underflow nozzle shield of the heavy medium cyclone of the present utility model, a hanging ring is fixedly connected to the upper end surface of the underflow box cover plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] During use, high-density materials enter the underflow box through the cyclone body. Since one end of the buffer box close to the cyclone body is an open structure, the high-density materials directly enter the buffer box and directly impact the impact plate, protecting the underflow box through the buffer box, effectively avoiding damage to the inner wall of the underflow box. Subsequently, the high-density materials are discharged from the lower end of the underflow box.

[0015] When the impact plate is worn to a certain extent, open the multiple locks fixing the underflow box cover plate, then lift the underflow box cover plate through the hanging ring, and then take out the buffer box from the inside of the underflow box. Then, open the engaging mechanism between the hanger steel plate and the buffer box to make the worn buffer box fall off. Then, fix other unused buffer boxes to the lower end of the hanger steel plate. Immediately afterwards, put the replaced buffer box back into the underflow box, thereby completing the replacement of the buffer box. Through the engaging mechanism, the buffer box can be quickly replaced, effectively improving the equipment utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Schematic diagram of the front view cross-section structure of the present utility model;

[0017] Figure 2 Schematic diagram of the right view cross-section structure of the present utility model;

[0018] Figure 3 Schematic diagram of the three-dimensional structure of the buffer box of the present utility model;

[0019] Figure 4 For the present utility model Figure 1 Schematic diagram of the enlarged structure of part a in;

[0020] In the figure: 1, cyclone body; 2, underflow box; 3, lock; 4, underflow box cover plate; 5, hanger steel plate; 6, buffer box; 7, connecting block; 8, limiting groove; 9, hole; 10, pin; 11, spring; 12, card slot; 13, chute; 14, moving rod; 15, inclined slot; 16, through hole; 17, lower pressing plate; 18, impact plate; 19, hanging ring. Specific implementation manners

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In the description of the present utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are 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 of the present utility model. In addition, in the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0022] Please refer to Figures 1 to 4 , a saddle-shaped underflow nozzle shield of a heavy medium cyclone, including a cyclone body 1, one end of the cyclone body 1 is communicated with an underflow box 2, the upper end of the underflow box 2 is detachably connected with an underflow box cover plate 4 through a lock 3, and the lower end surface of the underflow box cover plate 4 is fixedly connected with two hanger steel plates 5 distributed front and rear and located inside the underflow box 2;

[0023] Inside the underflow box 2, a buffer box 6 is arranged below the hanger steel plate 5. One end of the buffer box 6 close to the cyclone body 1 is of an open structure. An impact plate 18 is fixedly connected to the inner wall of the buffer box 6. A connecting block 7 corresponding to the hanger steel plate 5 is fixedly connected to the upper end face of the buffer box 6. A limiting groove 8 matching the hanger steel plate 5 is opened on the upper end face of the connecting block 7. A clamping mechanism matching the limiting groove 8 is arranged inside the hanger steel plate 5.

[0024] In this embodiment: During use, the high-density material enters the underflow box 2 through the cyclone body 1. Since one end of the buffer box 6 close to the cyclone body 1 is of an open structure, the high-density material directly enters the buffer box 6 and directly impacts the impact plate 18. The buffer box 6 protects the underflow box 2, effectively avoiding damage to the inner wall of the underflow box 2. Subsequently, the high-density material is discharged from the lower end of the underflow box 2.

[0025] When the impact plate 18 is worn to a certain extent, open the multiple locks 3 fixing the underflow box cover plate 4, then lift the underflow box cover plate 4 through the hanging ring 19, and then take out the buffer box 6 from inside the underflow box 2. Then, open the clamping mechanism between the hanger steel plate 5 and the buffer box 6 to make the worn buffer box 6 fall off. Then, fix the other unused buffer box 6 to the lower end of the hanger steel plate 5. Immediately afterwards, put the replaced buffer box 6 back into the underflow box 2, and thus complete the replacement of the buffer box 6. Through the clamping mechanism, the buffer box 6 can be quickly replaced, effectively improving the equipment utilization rate.

[0026] As a technical optimization scheme of the present utility model, the clamping mechanism includes a hole 9 penetrating through the inside of the hanger steel plate 5. Two clamping pins 10 distributed left and right are slidably connected inside the hole 9. A spring 11 is fixedly connected between the two clamping pins 10. Claw slots 12 matching the clamping pins 10 are opened on the left and right inner side walls of the limiting groove 8.

[0027] In this embodiment: When installing the other unused buffer box 6, move the other unused buffer box 6 below the hanger steel plate 5 so that the lower end of the hanger steel plate 5 enters the limiting groove 8. At the same time, the opening of the limiting groove 8 squeezes the clamping pin 10, causing the clamping pin 10 to enter the hole 9 until the clamping pin 10 moves to be flush with the claw slot 12. Then, the spring 11 rebounds and pushes the clamping pin 10 into the claw slot 12. Through the mutual cooperation between the clamping pin 10 and the claw slot 12, the other unused buffer box 6 is fixed to the lower end of the hanger steel plate 5.

[0028] As a technical optimization scheme of the present utility model, the clamping mechanism further includes two sliding grooves 13 opened at the upper end inside the hole 9. A moving rod 14 is slidably connected inside the sliding groove 13. The lower end of the moving rod 14 is of an inclined surface structure. An inclined groove 15 matching the lower end of the moving rod 14 is opened on the upper end face of the clamping pin 10.

[0029] In this embodiment, when disassembling the worn buffer box 6, the moving rod 14 moves downward, so that the lower end of the moving rod 14 enters the inclined slot 15. Through the mutual cooperation between the lower end of the moving rod 14 and the inclined slot 15, the pin 10 can be pushed towards the hole 9, and then the pin 10 is removed from the clamping slot 12, so as to remove the worn buffer box 6 from the lower end of the hanger steel plate 5.

[0030] As a technical optimization scheme of the present utility model, the other end of the pin 10 is provided with an inclined surface structure, and the opening of the limit slot 8 is provided with an inclined surface structure matching the other end of the pin 10.

[0031] In this embodiment, the opening of the limit slot 8 is provided with an inclined surface structure matching the other end of the pin 10, which is convenient for squeezing the pin 10 into the hole 9.

[0032] As a technical optimization scheme of the present utility model, through holes 16 communicating with the sliding slots 13 are formed in the opposite side walls of the two hanger steel plates 5. A lower pressing plate 17 passing through the through holes 16 is fixedly connected between the front and rear opposite moving rods 14, and a connecting rod is fixedly connected between the two lower pressing plates 17.

[0033] In this embodiment, the lower pressing plate 17 can drive a plurality of moving rods 14 to move downward simultaneously.

[0034] As a technical optimization scheme of the present utility model, the impact plate 18 can be made of any wear-resistant and impact-resistant material.

[0035] In this embodiment, the impact plate 18 can be made of any wear-resistant and impact-resistant material, which increases the range of materials for manufacturing the impact plate 18 and is convenient for producing the impact plate 18.

[0036] As a technical optimization scheme of the present utility model, a hanging ring 19 is fixedly connected to the upper end surface of the underflow box cover 4.

[0037] In this embodiment, the hanging ring 19 is convenient for lifting the underflow box cover 4.

[0038] Working principle: During use, high-density materials enter the underflow box 2 through the cyclone body 1. Since one end of the buffer box 6 close to the cyclone body 1 is an open structure, the high-density materials directly enter the buffer box 6 and directly impact the impact plate 18. The buffer box 6 protects the underflow box 2, effectively avoiding damage to the inner wall of the underflow box 2. Subsequently, the high-density materials are discharged from the lower end of the underflow box 2;

[0039] When the impact plate 18 wears to a certain extent, open the multiple latches 3 that fix the underflow box cover plate 4, then lift the underflow box cover plate 4 through the hanging ring 19, and then take out the buffer box 6 from inside the underflow box 2. Then, drive the multiple moving rods 14 to move downward simultaneously through the lower pressing plate 17, so that the lower ends of the moving rods 14 enter the inclined slots 15. Through the mutual cooperation between the lower ends of the moving rods 14 and the inclined slots 15, the pin 10 can be pushed to move towards the hole 9, and then the pin 10 is removed from the card slot 12, so as to remove the worn buffer box 6 from the lower end of the hanger steel plate 5. Then, move the other unused buffer boxes 6 below the hanger steel plate 5, so that the lower end of the hanger steel plate 5 enters the limit slot 8. At the same time, the opening of the limit slot 8 presses the pin 10, so that the pin 10 enters the hole 9 until the pin 10 moves flush with the card slot 12. Then, the spring 11 rebounds and pushes the pin 10 into the card slot 12. Through the mutual cooperation between the pin 10 and the card slot 12, the buffer box 6 is fixed to the lower end of the hanger steel plate 5. Immediately afterwards, put the replaced buffer box 6 back into the underflow box 2, and then complete the replacement of the buffer box 6. Through the clamping mechanism, the buffer box 6 can be quickly replaced, effectively improving the equipment utilization rate.

[0040] 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. A saddle-shaped underflow nozzle shroud for a heavy medium cyclone, comprising a cyclone body (1), one end of the cyclone body (1) is communicated with an underflow box (2), and it is characterized in that: The upper end of the underflow box (2) is detachably connected with an underflow box cover plate (4) through a buckle (3), and two hanging plate steels (5) which are distributed front and back and located inside the underflow box (2) are fixedly connected to the lower end face of the underflow box cover plate (4); A buffer box (6) is arranged inside the underflow box (2) and below the hanging plate steels (5). One end of the buffer box (6) close to the cyclone body (1) is of an open structure, and an impact plate (18) is fixedly connected to the inner wall of the buffer box (6); A connecting block (7) corresponding to the hanging plate steels (5) is fixedly connected to the upper end face of the buffer box (6). A limiting groove (8) matching with the hanging plate steels (5) is formed in the upper end face of the connecting block (7), and a clamping mechanism matched with the limiting groove (8) is arranged inside the hanging plate steels (5).

2. The saddle-shaped underflow nozzle shroud of a dense medium cyclone according to claim 1, characterized in that: The clamping mechanism includes a hole (9) penetrating through the inside of the hanging plate steels (5). Two clamping pins (10) which are distributed left and right are slidably connected inside the hole (9). A spring (11) is fixedly connected between the two clamping pins (10), and clamping grooves (12) matching with the clamping pins (10) are formed in the left and right inner side walls of the limiting groove (8).

3. The saddle-shaped underflow nozzle shroud of a heavy medium cyclone according to claim 2, characterized in that: The clamping mechanism further includes two sliding grooves (13) formed in the upper end inside the hole (9). A moving rod (14) is slidably connected inside the sliding groove (13). The lower end of the moving rod (14) is of an inclined surface structure, and an inclined groove (15) matching with the lower end of the moving rod (14) is formed in the upper end face of the clamping pin (10).

4. The sump type underflow nozzle shield of a dense medium cyclone according to claim 2, characterized in that: The other end of the clamping pin (10) is of an inclined surface structure, and the opening of the limiting groove (8) is of an inclined surface structure matching with the other end of the clamping pin (10).

5. The saddle-shaped underflow nozzle shroud of a heavy medium cyclone according to claim 3, characterized in that: Through holes (16) communicating with the sliding grooves (13) are formed in the opposite side walls of the two hanging plate steels (5). A lower pressing plate (17) passing through the through holes (16) is fixedly connected between the front and rear opposite moving rods (14), and a connecting rod is fixedly connected between the two lower pressing plates (17).

6. The saddle-shaped underflow nozzle shroud of a heavy medium cyclone according to claim 1, wherein: The impact plate (18) can be made of any wear-resistant and impact-resistant material.

7. The saddle-shaped underflow nozzle shield of a heavy medium cyclone according to claim 1, characterized in that: A hanging ring (19) is fixedly connected to the upper end face of the underflow box cover plate (4).

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