Horizontal spiral discharging sedimentation centrifuge with deslagging structure

Abstract

The utility model discloses a horizontal type spiral discharging sedimentation centrifuge with a slag discharging structure. The horizontal type spiral discharging sedimentation centrifuge comprises a feeding pipe; a spiral conveyor is arranged in the rotary drum, the rotary drum is provided with a slag discharging opening, and the slag discharging opening is provided with a slag discharging piece; the large end cover is arranged at one end, far away from the slag discharging opening, of the rotary drum, and an overflow hole is formed in the large end cover. The deslagging device has the beneficial effects that the deslagging by a throttling method is realized, the number of the deslagging pieces and the diameter of the nozzle can be adjusted, the deslagging quantity is controlled, and when the feeding quantity or the overflow radius of the discharged liquid slightly fluctuates, the deslagging can be continuously and stably realized, and the separation effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a horizontal spiral unloading sedimentation centrifuge with a slag discharge structure. Background Art

[0002] Working principle of horizontal spiral unloading sedimentation centrifuge: the slurry to be separated enters the drum through the feed pipe, spiral conveyor and feeding port. Under the centrifugal force generated by high-speed rotation, the solid particles with larger specific gravity are deposited on the inner wall of the drum. The feeding blades on the spiral conveyor that moves relative to the drum continuously scrape the solid particles deposited on the inner wall of the drum and push them out of the slag discharge port. The separated clear liquid flows out of the drum through the overflow port of the large end cover. Ordinary horizontal spiral unloading sedimentation centrifuge controls the slag discharge amount by adjusting the overflow position of the overflow port. When the radius of the overflow position is increased (the radius of the liquid phase overflow position is larger than the radius of the slag discharge port), the slag discharge amount of the slag discharge port is reduced. On the contrary, when the radius of the overflow position is reduced (the radius of the liquid phase overflow position is equal to or smaller than the radius of the slag discharge port), the slag discharge amount of the slag discharge port is increased. During actual operation, the solid slag will form a weir of a certain thickness on the inner wall of the drum's slag discharge port. The weir formed by the solid slag will be scraped away by the spiral feeding blades, and then a new weir will be formed over and over again. In other words, the radius of the slag discharge port is constantly changing, resulting in a slag discharge amount that varies, and the liquid and solid phases are mixed at the slag discharge port, which cannot be stable. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a horizontal spiral unloading sedimentation centrifuge with a slag discharge structure, which can achieve uniform slag discharge and good solid and liquid phase separation effects.

[0004] Specifically, the utility model discloses a horizontal spiral unloading sedimentation centrifuge with a slag discharge structure, comprising:

[0005] Feed pipe;

[0006] A rotary drum, wherein a screw conveyor is arranged inside, the rotary drum is provided with a slag discharge port, and the slag discharge port is provided with a slag discharge piece;

[0007] The large end cover is arranged at one end of the drum away from the slag discharge port, and an overflow hole is arranged on the large end cover.

[0008] The benefit of adopting the above technical solution is that by setting up slag discharge parts, throttling method slag discharge can be realized. The number of slag discharge parts and the diameter of the nozzle can be adjusted to control the slag discharge amount and ensure continuous and stable slag discharge when there is a slight fluctuation in the feed amount or the overflow radius of the discharge liquid, thereby ensuring the separation effect.

[0009] Furthermore, the slag discharge member is evenly arranged around the drum, and includes a mounting member and a spray nozzle. The mounting member is fixed to the slag discharge port, and the spray nozzle is detachably mounted to the mounting member, and a gradually shrinking discharge channel is arranged inside.

[0010] The advantage of adopting the above technical solution is that, during installation, the mounting part is installed in the slag discharge port, the nozzle is replaceable, the discharge channel controls the slag discharge speed, and the solid phase slag on the upper side of the slag discharge port is discharged by pressure to achieve uniform slag discharge.

[0011] Furthermore, an extension portion is provided at the upper end of the spray nozzle, a clamping portion is provided at the side of the extension portion, a retaining ring is provided at the bottom of the mounting member, the retaining ring is provided with an avoidance groove for avoiding the clamping portion and a fixing groove for fixing the clamping portion, and the fixing groove is provided on the upper side of the avoidance groove.

[0012] The advantage of adopting the above technical solution is that the nozzle can be easily repaired and replaced by installing the clamping part and the mounting piece, and the installation can be achieved without disassembling other parts.

[0013] Furthermore, the discharge channel gradually shrinks along the discharge direction.

[0014] The benefit of adopting the above technical solution is that the gradually shrinking discharge channel can control the discharge amount, effectively preventing the internal liquid from being discharged along with the solid slag, thereby achieving uniform discharge.

[0015] Furthermore, the ejection nozzle comprises a plurality of groups of ejection nozzles having discharge channels of different diameters.

[0016] The advantage of adopting the above technical solution is that during use, the nozzles with different diameters can be replaced as the centrifugal material or density or requirements change, thereby increasing the applicability of the centrifuge, saving processing costs, and ensuring the centrifugal effect.

[0017] Furthermore, a protective cover is arranged on the outside of the drum, and the protective cover is divided into three parts: a liquid discharge part, a rotating part and a slag discharge part, and both the liquid discharge part and the slag discharge part are provided with a discharge port.

[0018] The benefit of adopting the above technical solution is that the provision of the protective cover protects the rotating drum and also forms a liquid discharge portion for discharging liquid and a slag discharge portion for discharging slag, thereby achieving classified collection of liquid and solid.

[0019] Furthermore, the rotating drum is connected to a driving assembly.

[0020] Furthermore, an annular stopper is provided on the lower side of the protruding portion.

[0021] The benefit of adopting the above technical solution is that the provision of the annular stopper plays a role of limiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments or the description of the prior art will be briefly introduced below.

[0023] Figure 1 This is the overall structural diagram of the horizontal spiral unloading sedimentation centrifuge with a slag discharge structure of the utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the slag discharge part of the utility model

[0025] Figure 3 It is a bottom structural diagram of the mounting piece of the utility model.

[0026] The reference numerals in the accompanying drawings are as follows:

[0027] Feed pipe 1; drum 2; slag discharge port 21; screw conveyor 3; slag discharge member 4; mounting member 41; discharge nozzle 42; clamping portion 43; fixing groove 44; retaining ring 45; avoidance groove 46; discharge channel 47; annular stopper 48; large end cover 5; overflow hole 51; protective cover 6; liquid discharge portion 61; slag discharge portion 62; discharge port 63; drive assembly 7; DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] like Figure 1-3 As shown, the utility model discloses a horizontal spiral unloading sedimentation centrifuge with a slag discharge structure, comprising:

[0030] Feed pipe 1;

[0031] The rotary drum 2 is provided with a screw conveyor 3 inside, the rotary drum 2 is provided with a slag discharge port 21, and the slag discharge port 21 is provided with a slag discharge member 4;

[0032] The large end cover 5 is arranged at an end of the drum 2 away from the slag discharge port 21 , and an overflow hole 51 is arranged on the large end cover 5 .

[0033] The benefit of adopting the above technical solution is that by setting the slag discharge parts 4, the throttling method of slag discharge can be realized. The number of slag discharge parts 4 and the diameter of the nozzle can be adjusted to control the slag discharge amount and ensure continuous and stable slag discharge when there is a slight fluctuation in the feed amount or the overflow radius of the discharge liquid, thereby ensuring the separation effect.

[0034] In some embodiments, the slag discharge part 4 is evenly arranged around the drum 2, including a mounting part 41 and a nozzle 42. The mounting part 41 is fixed to the slag discharge port 21, and the nozzle 42 and the mounting part 41 are detachably installed. A gradually shrinking discharge channel 47 is arranged inside. Multiple nozzles 42 can control the slag discharge amount. The mounting part 41 and the slag discharge port 21 are fixed by welding or threaded connection.

[0035] During installation, the mounting member 41 is installed in the slag discharge port 21, the nozzle 42 is replaceable, the discharge channel 47 controls the slag discharge speed, and the solid phase slag on the upper side of the slag discharge port 21 is discharged by pressure to achieve uniform slag discharge.

[0036] In some embodiments, an extension portion is provided at the upper end of the nozzle 42, a clamping portion 43 is provided on the side of the extension portion, a retaining ring 45 is provided at the bottom of the mounting member 41, the retaining ring 45 is provided with an avoidance groove 46 for avoiding the clamping portion 43 and a fixing groove 44 for fixing the clamping portion 43, and the fixing groove 44 is provided on the upper side of the avoidance groove 46. During installation, the clamping portion 43 extends into the mounting plate through the avoidance groove 46, and then rotates so that the clamping portion 43 extends into the fixing groove 44. Since the solid slag is discharged outward, an outward force is applied to the nozzle 42 during the slag discharge process so that the clamping portion 43 is pressed against the fixing groove 44, and the nozzle will not fall off. If replacement is required, only the nozzle 42 needs to be rotated, and the clamping portion 43 withdraws from the avoidance groove 46 to complete the replacement. There is no need to remove the screws, and the replacement is convenient.

[0037] The advantage of adopting the above technical solution is that the nozzle 42 can be easily repaired and replaced by installing the clamping portion 43 and the mounting member 41 , and the installation can be achieved without disassembling other components.

[0038] Furthermore, the discharge channel 47 gradually shrinks along the discharge direction. The gradually shrinking discharge channel 47 can control the discharge amount, effectively prevent the internal liquid from being discharged along with the solid slag, and achieve uniform discharge.

[0039] Furthermore, the nozzle 42 includes a plurality of nozzles 42 with different diameters of discharge channels 47. During use, nozzles 42 with different diameters can be replaced as the centrifugal material or density or requirements change, thereby increasing the applicability of the centrifuge, saving processing costs, and ensuring the centrifugal effect.

[0040] In some embodiments, a protective cover 6 is provided on the outside of the drum 2, and the protective cover 6 is divided into three parts: a liquid discharge part 61, a rotating part, and a slag discharge part 62. Both the liquid discharge part 61 and the slag discharge part 62 are provided with a discharge port 63. The provision of the protective cover 6 protects the rotating drum 2, and also forms a liquid discharge part 61 for discharging liquid and a slag discharge part 62 for discharging slag, thereby realizing the classified collection of liquid and solid.

[0041] In some embodiments, the drum 2 is connected to a driving assembly 7, which includes a motor, a reducer and a classifier, and drives the drum 2 and the differential to rotate at different speeds to achieve separation of the liquid phase and the solid phase.

[0042] Furthermore, an annular stopper 48 is provided at the lower side of the extension portion, and the provision of the annular stopper 48 serves a limiting function.

[0043] During use, the slag discharge part 4 is installed, the feed pipe 1 enters the mixed material, the drum 2 rotates to separate the liquid phase and the solid phase, and the solid phase is transported toward the slag discharge port 21 through the screw conveyor 3. The setting of the slag discharge part 4 can control the slag discharge speed and make the slag discharge amount uniform. The separated liquid phase is discharged through the overflow hole 51. In different use cases, different ejection nozzles 42 can be replaced without the need for overall disassembly.

[0044] For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all fall within the protection scope of the utility model.

Claims

1. A horizontal spiral unloading sedimentation centrifuge with a slag discharge structure, characterized in that: include: Feed pipe (1); A rotary drum (2) is provided with a screw conveyor (3) inside, the rotary drum (2) is provided with a slag discharge port (21), and the slag discharge port (21) is provided with a slag discharge member (4); The large end cover (5) is arranged at one end of the drum (2) away from the slag discharge port (21), and an overflow hole (51) is arranged on the large end cover (5).

2. The horizontal spiral unloading sedimentation centrifuge with a slag discharge structure according to claim 1, characterized in that: The slag discharge member (4) is evenly arranged around the rotating drum (2), and comprises a mounting member (41) and a spray nozzle (42); the mounting member (41) is fixed to the slag discharge port (21); the spray nozzle (42) and the mounting member (41) are detachably mounted, and a discharge channel (47) is arranged inside.

3. The horizontal spiral unloading sedimentation centrifuge with a slag discharge structure according to claim 2, characterized in that: The upper end of the ejection nozzle (42) is provided with a protruding portion, the side of the protruding portion is provided with a clamping portion (43), the bottom of the mounting member (41) is provided with a retaining ring (45), the retaining ring (45) is provided with an avoidance groove (46) for avoiding the clamping portion (43) and a fixing groove (44) for fixing the clamping portion (43), and the fixing groove (44) is provided on the upper side of the avoidance groove (46).

4. The horizontal spiral unloading sedimentation centrifuge with a slag discharge structure according to claim 2, characterized in that: The discharge channel (47) gradually shrinks along the discharge direction.

5. The horizontal spiral unloading sedimentation centrifuge with a slag discharge structure according to claim 4, characterized in that: The ejection nozzle (42) comprises a plurality of groups of ejection nozzles (42) having ejection channels (47) of different diameters.

6. The horizontal spiral unloading sedimentation centrifuge with a slag discharge structure according to claim 1, characterized in that: A protective cover (6) is arranged on the outside of the rotary drum (2), and the protective cover (6) is divided into three parts: a liquid discharge part (61), a rotating part and a slag discharge part (62). Both the liquid discharge part (61) and the slag discharge part (62) are provided with a discharge port (63).

7. The horizontal spiral unloading sedimentation centrifuge with a slag discharge structure according to claim 1, characterized in that: The rotating drum (2) is connected to a driving assembly (7).

8. The horizontal spiral unloading sedimentation centrifuge with a slag discharge structure according to claim 3, characterized in that: An annular stopper (48) is arranged at the lower side of the protruding portion.

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