A wastewater discharge device for a multi-disc thickener

Abstract

The utility model relates to a wastewater discharge device of multi-disc thickener relates to papermaking setting technical field, the bend pipe is connected with no. 1 inlet pipe, and the bend pipe presents inverted " U " shape structure, the mixing mechanism is connected with the bend pipe through no. 2 inlet pipe, the filtering mechanism is with the mixing mechanism, the discharge mechanism is connected with the filtering mechanism, and the connecting mechanism is arranged on the discharge mechanism and no. 1 inlet pipe, can carry out the different reaction separately, and does not influence the continuous discharge of wastewater, improves the efficiency of wastewater discharge, can carry out the precipitation in the process of discharging wastewater, and different precipitates are accumulated and handled, more environmental protection.

Description

TECHNICAL FIELD

[0001] The present application relates to papermaking setting technical field, specifically relates to a kind of wastewater discharge device of multi-disc thickener. BACKGROUND

[0002] Wastewater generated when using multi-disc thickener is chemical pulp wastewater, direct discharge can produce a lot of pollution, so it needs to be treated when discharging, according to the present discharge standard, chemical pulp wastewater needs to be degraded in multiple stages, and degradation agent such as calcium hydroxide needs to be added in batches for multiple times to generate different precipitates, and different precipitates have different treatment methods, which cannot be simply mixed together, therefore, a kind of wastewater discharge device of multi-disc thickener is proposed. SUMMARY

[0003] The present application aims at the defects and deficiencies of prior art, and proposes a kind of wastewater discharge device of multi-disc thickener, which can separate different reactions, does not affect the continuous discharge of wastewater, improves the efficiency of wastewater discharge, and can precipitate during wastewater discharge, accumulate and treat different precipitates, and is more environmentally friendly.

[0004] To achieve the above object, the technical scheme adopted by the present application is as follows: it contains a water inlet pipe;

[0005] It also contains:

[0006] Elbow, the elbow is connected with the water inlet pipe, and the elbow is in inverted "U" shape structure;

[0007] Mixing mechanism, the mixing mechanism is connected with the elbow through the second water inlet pipe;

[0008] Filtering mechanism, the filtering mechanism is connected with the mixing mechanism;

[0009] Discharge mechanism, the discharge mechanism is connected with the filtering mechanism;

[0010] Connecting mechanism, the connecting mechanism is arranged on the discharge mechanism and the water inlet pipe;

[0011] Through the above technical scheme design, a plurality of water inlet pipes and discharge mechanisms are connected through the connecting mechanism to form a plurality of interconnected wastewater discharge devices; the elbow prevents backflow of wastewater, the mixing mechanism adds degradation agent and mixes with wastewater, the filtering mechanism filters precipitates, and after a period of time, the precipitates are discharged through the discharge mechanism.

[0012] Preferably, the mixing mechanism comprises:

[0013] Mixing tank, the mixing tank is connected with the elbow through the second water inlet pipe;

[0014] Pump body, the pump body is fixed on the mixing tank, the pump body is connected with the external power supply; the mixing tank is fixed with a feeding tank, the inlet end of the pump body is connected with the feeding tank through a water guide pipe, and the outlet end of the pump body is connected with the mixing tank through a water guide pipe;

[0015] Connecting ring, the connecting ring is arranged on the left side of the mixing tank;

[0016] Tooth ring, the tooth ring is arranged on the right side of the mixing tank; the upper end of the tooth ring is engaged with a gear, a stirring motor is fixed on the right side wall of the mixing tank, and the stirring motor is connected with the external power supply; the output shaft of the stirring motor is connected with the gear through a shaft and a sealing bearing;

[0017] A plurality of first connecting rods are arranged in annular distribution between the connecting ring and the tooth ring, and a plurality of second connecting rods are fixed on the first connecting rods;

[0018] A plurality of rotating rods are connected with the second connecting rods;

[0019] Through the above technical scheme, the corresponding degradation agent is added in the feeding tank; the pump body is started, the degradation agent is gradually added into the mixing tank, the stirring motor is started, the gear is rotated, the tooth ring is rotated, the first connecting rod, the second connecting rod and the rotating rod are rotated, the first connecting rod and the second connecting rod are rotated in the mixing tank, and the degradation agent and the wastewater in the mixing tank are mixed.

[0020] Preferably, the second water guide pipe is provided with an electromagnetic valve, and the electromagnetic valve is connected with the external power supply;

[0021] Through the above technical scheme, the electromagnetic valve is closed regularly, and the degradation agent is prevented from being excessive.

[0022] Preferably, a plurality of rotating beads are arranged on the outer side wall of the rotating rod in rolling mode, and the rotating beads are arranged on the inner ring wall of the mixing tank;

[0023] Through the above technical scheme, the rotating beads are rotated on the inner ring wall of the mixing tank, and the rotation of the rotating rod is facilitated.

[0024] Preferably, a sediment tank is connected with the right side wall bottom of the mixing tank through a third water outlet pipe, and a filtering mechanism is arranged in the sediment tank; a first connecting pipe is connected with the right side of the top plate of the sediment tank; the filtering mechanism comprises:

[0025] A filter screen is arranged at the bottom of the first connecting pipe;

[0026] A plurality of brushes are arranged on the inner top plate of the sediment tank in annular distribution, and the brushes are arranged on the bottom of the filter screen; a third connecting rod is fixed on the inner end of the brush;

[0027] A rotating motor is fixed on the top plate of the precipitation tank, and the rotating motor is connected with an external power source; the output shaft of the rotating motor passes through the precipitation tank through a sealing bearing and a shaft, and is connected with a plurality of third connecting rods;

[0028] Through the technical scheme, the rotating motor is started to rotate the plurality of brushes, the brushes rotate on the filter screen, the reacted wastewater is discharged through the first connecting pipe, the precipitates generated in the reaction are left in the precipitation tank, and the brushes avoid the filter screen from being blocked by the precipitates.

[0029] Preferably, the discharging mechanism comprises:

[0030] A bottom cover is arranged on the bottom opening of the precipitation tank; a sealing gasket is fixed on the bottom cover and abuts against the bottom of the precipitation tank;

[0031] Two movable inner threaded pipes are rotatably connected to the left and right ring walls of the bottom cover through shafts and bearings, respectively; a screw rod is rotatably connected to the movable inner threaded pipes through threads; the upper end of the screw rod is connected with the output shaft of a moving motor; and the moving motor is connected with an external power source.

[0032] Two fixed frames are fixed to the left and right ring walls of the precipitation tank, respectively; the moving motor is fixed to the inner top plate of the fixed frame; and the lower end of the screw rod is rotatably connected to the bottom of the fixed frame through a bearing.

[0033] Through the technical scheme, the moving motor is started to rotate the screw rod, so that the movable inner threaded pipes are lowered, the bottom cover is lowered, the precipitates accumulated on the bottom cover are turned over under the action of gravity, and the precipitates can fall into the corresponding container.

[0034] Preferably, the connecting mechanism comprises:

[0035] A second connecting pipe is connected with the first connecting pipe; the second connecting pipe is arranged in the same plane as the first water inlet pipe; the second connecting pipe is provided with threads; and the right end of the second connecting pipe is fixed with a first sealing ring.

[0036] A connecting inner threaded pipe is rotatably connected to the first water inlet pipe through threads.

[0037] A second sealing ring is fixed to the left end of the first water inlet pipe.

[0038] Through the technical scheme, the second connecting pipe of one device is abutted with the first water inlet pipe of another device, the connecting inner threaded pipe is rotated, and the second connecting pipe of the different devices is arranged in connection with the first water inlet pipe.

[0039] Compared with the prior art, the present application has the following beneficial effects:

[0040] 1. It is equipped with a connecting mechanism, which can separate different reactions without affecting the continuous discharge of wastewater, thereby improving the efficiency of wastewater discharge;

[0041] 2. It is equipped with a mixing mechanism, a filtering mechanism and a discharging mechanism, which can precipitate in the process of discharging wastewater, and accumulate and treat different sediments, which is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 It is a southeast isometric view of the present invention.

[0044] Figure 2 yes Figure 1 Enlarged view of part A in .

[0045] Figure 3 yes Figure 1 Enlarged view of part B in .

[0046] Figure 4 yes Figure 1 Enlarged view of part C in .

[0047] Figure 5 yes Figure 1 Enlarged view of part D in .

[0048] Figure 6 It is a southwest isometric view of the invention.

[0049] Figure 7 It is a cross-sectional view of the mixing tank of the present invention.

[0050] Figure 8 It is a cross-sectional view of the sedimentation tank of the present invention.

[0051] Description of reference numerals:

[0052] No. 1 water inlet pipe 1, elbow pipe 2, mixing mechanism 3, mixing tank 3-1, pump body 3-2, feeding tank 3-3, No. 1 water guide pipe 3-4, No. 2 water guide pipe 3-5, electromagnetic valve 3-6, connecting ring 3-7, tooth ring 3-8, gear 3-9, stirring motor 3-10, No. 1 connecting rod 3-11, No. 2 connecting rod 3-12, rotating rod 3-13, rotating ball 3-14, filtering mechanism 4, filter screen 4-1, brush 4-2, No. 3 connecting rod 4-3, rotating motor 4-4, discharging mechanism 5, bottom cover 5-1, sealing gasket 5-2, movable internal threaded pipe 5-3, screw rod 5-4, moving motor 5-5, fixing frame 5-6, connecting mechanism 6, No. 2 connecting pipe 6-1, No. 1 sealing ring 6-2, connecting internal threaded pipe 6-3, No. 2 sealing ring 6-4, sediment tank 7, No. 1 connecting pipe 8, No. 2 water inlet pipe 9, No. 3 water inlet pipe 10. DETAILED DESCRIPTION

[0053] The application will be further described below with reference to the drawings.

[0054] Embodiment 1:

[0055] Please refer to Figure 1 and Figure 6 , the embodiment 1 comprises a No. 1 water inlet pipe 1;

[0056] It also comprises:

[0057] Elbow pipe 2, the elbow pipe 2 is connected with the No. 1 water inlet pipe 1, and the elbow pipe 2 is in inverted "U" structure;

[0058] Mixing mechanism 3, the mixing mechanism 3 is connected with the elbow pipe 2 through the No. 2 water inlet pipe 9;

[0059] Filtering mechanism 4, the filtering mechanism 4 is connected with the mixing mechanism 3;

[0060] Discharging mechanism 5, the discharging mechanism 5 is connected with the filtering mechanism 4;

[0061] Connecting mechanism 6, the connecting mechanism 6 is arranged on the discharging mechanism 5 and the No. 1 water inlet pipe 1;

[0062] In the embodiment 1, a plurality of No. 1 water inlet pipes 1 and the discharging mechanism 5 are connected through the connecting mechanism 6 to form a plurality of waste water discharge devices in communication; the elbow pipe 2 prevents waste water from flowing back, the mixing mechanism 3 is used to add degrading agent to mix with waste water, the filtering mechanism 4 is used to filter the precipitate, and after a period of time, the precipitate is discharged through the discharging mechanism 5.

[0063] Embodiment 2:

[0064] Please refer to Figure 1 , Figure 2 , Figure 6 and Figure 7On the basis of embodiment 1, the mixing mechanism 3 comprises:

[0065] A mixing tank 3-1 is connected with the elbow pipe 2 through the second water inlet pipe 9;

[0066] A pump body 3-2 is fixed on the mixing tank 3-1 by bolts, and the pump body 3-2 is connected with an external power source. The specific model of the pump body 3-2 is directly purchased, installed and used according to actual requirements. A feeding tank 3-3 is fixed on the mixing tank 3-1. The inlet of the pump body 3-2 is connected with the feeding tank 3-3 through a first water guide pipe 3-4, and the outlet of the pump body 3-2 is connected with the mixing tank 3-1 through a second water guide pipe 3-5. An electromagnetic valve 3-6 is arranged on the second water guide pipe 3-5, and the electromagnetic valve 3-6 is connected with an external power source. The specific model of the electromagnetic valve 3-6 is directly purchased, installed and used according to actual requirements.

[0067] A connecting ring 3-7 is arranged on the left side in the mixing tank 3-1;

[0068] A tooth ring 3-8 is arranged on the right side in the mixing tank 3-1. The upper end of the tooth ring 3-8 is engaged with a gear 3-9. A stirring motor 3-10 is fixed on the right side wall of the mixing tank 3-1 by bolts, and the stirring motor 3-10 is connected with an external power source. The specific model of the stirring motor 3-10 is directly purchased, installed and used according to actual requirements. The output shaft of the stirring motor 3-10 is connected with the gear 3-9 through a shaft and a sealing bearing.

[0069] A plurality of first connecting rods 3-11 are annularly arranged between the connecting ring 3-7 and the tooth ring 3-8. A plurality of second connecting rods 3-12 are fixed on the first connecting rods 3-11 by bolts.

[0070] A plurality of rotating rods 3-13 are connected with the second connecting rods 3-12. A plurality of rotating balls 3-14 are annularly arranged on the outer side wall of the rotating rods 3-13, and the rotating balls 3-14 are arranged on the inner annular wall of the mixing tank 3-1.

[0071] In this embodiment, the corresponding degradation agent is added into the feeding tank 3-3. The pump body 3-2 is started to gradually add the degradation agent into the mixing tank 3-1. The stirring motor 3-10 is started to rotate the gear 3-9, drive the tooth ring 3-8 to rotate, drive the first connecting rods 3-11, the second connecting rods 3-12 and the rotating rods 3-13 to rotate, and drive the rotating balls 3-14 to rotate on the inner annular wall of the mixing tank 3-1. The first connecting rods 3-11 and the second connecting rods 3-12 rotate in the mixing tank 3-1, and the degradation agent is mixed with the wastewater in the mixing tank 3-1.

[0072] Embodiment 3:

[0073] Please refer to Figure 1 , Figure 6 and Figure 8 , on the basis of embodiment 2, the right side wall of the mixing tank 3-1 is connected with the sedimentation tank 7 through the No. 3 water outlet pipe, and the filter mechanism 4 is arranged in the sedimentation tank 7; the top plate of the sedimentation tank 7 is connected with the No. 1 connecting pipe 8; the filter mechanism 4 comprises:

[0074] The filter screen 4-1 is arranged at the bottom of the No. 1 connecting pipe 8;

[0075] The brushes 4-2 are annularly arranged on the inner top plate of the sedimentation tank 7, and the inner ends of the brushes 4-2 are fixed with the No. 3 connecting rods 4-3 through bolts;

[0076] The rotating motor 4-4 is fixed on the top plate of the sedimentation tank 7 through bolts, and is connected with an external power supply; the specific type of the rotating motor 4-4 is directly purchased, installed and used according to actual requirements; the output shaft of the rotating motor 4-4 is connected with the No. 3 connecting rods 4-3 through a sealing bearing and a shaft after penetrating through the sedimentation tank 7;

[0077] In this embodiment, the rotating motor 4-4 is started to rotate the brushes 4-2, the brushes 4-2 rotate on the filter screen 4-1, the reacted wastewater is discharged through the No. 1 connecting pipe 8, and the sediment produced in the reaction is left in the sedimentation tank 7; the brushes 4-2 avoid the sediment from blocking the filter screen 4-1.

[0078] Embodiment 4:

[0079] Please refer to Figure 1 and Figure 5 , on the basis of embodiment 3, the discharge mechanism 5 comprises:

[0080] The bottom cover 5-1 is arranged on the bottom opening of the sedimentation tank 7; the sealing gasket 5-2 is fixed on the bottom cover 5-1 by glue, and abuts against the bottom of the sedimentation tank 7;

[0081] The movable internal threaded pipe 5-3 is rotatably connected with the ring wall of the bottom cover 5-1 through a shaft and a bearing; the screw rod 5-4 is rotatably inserted into the movable internal threaded pipe 5-3 through threads; the upper end of the screw rod 5-4 is connected with the output shaft of the moving motor 5-5; the moving motor 5-5 is connected with an external power supply; the specific type of the moving motor 5-5 is directly purchased, installed and used according to actual requirements.

[0082] The fixing frame 5-6 is two in number and is fixed to the left and right sides of the annular wall of the precipitation tank 7 by bolts respectively. The mobile motor 5-5 is fixed to the inner top plate of the fixing frame 5-6. The lower end of the screw 5-4 is screwed to the bottom of the fixing frame 5-6 through a bearing.

[0083] In this embodiment, the moving motor 5-5 is started to rotate the screw 5-4, driving the moving internal threaded tube 5-3 to descend, causing the bottom cover 5-1 to descend. The sediment accumulated on the bottom cover 5-1 flips the bottom cover 5-1 under the action of gravity, allowing the sediment to fall into the corresponding container.

[0084] Example 5:

[0085] See also Figures 3-4 , based on Example 3, the connecting mechanism 6 includes:

[0086] The second connecting pipe 6-1 is connected to the first connecting pipe 8 through the second connecting pipe 6-1; the second connecting pipe 6-1 is flush with the first water inlet pipe 1; the second connecting pipe 6-1 is provided with a thread; the right end of the second connecting pipe 6-1 is fixed with a first sealing ring 6-2 by gluing;

[0087] Connecting internal threaded pipe 6-3, the connecting internal threaded pipe 6-3 is screwed onto the first water inlet pipe 1;

[0088] No. 2 sealing ring 6-4, the No. 2 sealing ring 6-4 is fixed to the left end of the No. 1 water inlet pipe 1 by glue;

[0089] According to this embodiment, the No. 2 connecting pipe 6-1 on one device is abutted against the No. 1 water inlet pipe 1 on another device, and the connecting internal threaded pipe 6-3 is rotated so that the No. 2 connecting pipe 6-1 on different devices is connected to the No. 1 water inlet pipe 1.

[0090] When the present invention is used, the No. 2 connecting pipe 6-1 on one device is counterbalanced with the No. 1 water inlet pipe 1 on another device, and the internal threaded connecting pipe 6-3 is rotated to connect the No. 2 connecting pipe 6-1 on the different devices to the No. 1 water inlet pipe 1. The first No. 1 water inlet pipe 1 is connected to the wastewater outlet of the multi-disc thickener. The actual installation and fixing method of the No. 1 water inlet pipe 1, the mixing tank 3-1, the sedimentation tank 7, and the No. 2 connecting pipe 6-1 is installed according to the actual site.

[0091] The corresponding degradation agent is added in the feeding tank 3-3; the pump body 3-2 is started, the degradation agent is gradually added in the mixing tank 3-1, the stirring motor 3-10 is started, the gear 3-9 rotates, the gear ring 3-8 rotates, the first connecting rod 3-11, the second connecting rod 3-12 and the rotating rod 3-13 rotate, the rotating ball 3-14 rotates on the inner ring wall of the mixing tank 3-1, the first connecting rod 3-11 and the second connecting rod 3-12 rotate in the mixing tank 3-1, the degradation agent and the wastewater in the mixing tank 3-1 are mixed to form a precipitate; the wastewater and the precipitate enter the sedimentation tank 7 through the third water inlet pipe 10, the rotating motor 4-4 is started, the plurality of brushes 4-2 rotate, the brushes 4-2 rotate on the filter screen 4-1, the reacted wastewater is discharged through the first connecting pipe 8, the precipitate generated in the reaction is left in the sedimentation tank 7, the brushes 4-2 avoid the precipitate from blocking the filter screen 4-1, after a certain period of time, the precipitate accumulates in the sedimentation tank 7; the wastewater discharge is stopped, the moving motor 5-5 is started, the screw rod 5-4 rotates, the moving inner threaded pipe 5-3 is lowered, the bottom cover 5-1 is lowered, the precipitate accumulated on the bottom cover 5-1 is turned over under the action of gravity, so that the precipitate can fall into the corresponding container.

[0092] After adopting the above structure, the beneficial effects of the specific embodiment are:

[0093] 1. The connecting mechanism 6 is provided, which can separate different reactions and does not affect the continuous discharge of wastewater, thereby improving the efficiency of wastewater discharge.

[0094] 2. The mixing mechanism 3, the filtering mechanism 4 and the discharging mechanism 5 are provided, which can precipitate during the discharge of wastewater, accumulate and treat different precipitates, and are more environmentally friendly.

[0095] The above description is only used to illustrate the technical solutions of the present application, not to limit the present application, and other modifications or equivalent replacements of the technical solutions of the present application made by those skilled in the art should be covered in the scope of the claims of the present application.

Claims

1. A wastewater discharge device for a multi-disc thickener, comprising a first water inlet pipe (1); It is characterized in that It also contains: Bend pipe (2), the bend pipe (2) is connected to the first water inlet pipe (1), and the bend pipe (2) is an inverted "U"-shaped structure; A mixing mechanism (3), wherein the mixing mechanism (3) is connected to the elbow (2) via the second water inlet pipe (9); the mixing mechanism (3) comprises: A mixing tank (3-1), wherein the mixing tank (3-1) is connected to the elbow (2) through a No. 2 water inlet pipe (9); A pump body (3-2), wherein the pump body (3-2) is fixed on the mixing tank (3-1), and the pump body (3-2) is connected to an external power supply; a feeding tank (3-3) is fixed on the mixing tank (3-1), an inlet end of the pump body (3-2) is connected to the feeding tank (3-3) via a No. 1 water guide pipe (3-4), and an outlet end of the pump body (3-2) is connected to the mixing tank (3-1) via a No. 2 water guide pipe (3-5); A connecting ring (3-7), the connecting ring (3-7) being disposed against the left side of the mixing tank (3-1); A gear ring (3-8) is disposed against the right side of the mixing tank (3-1); a gear (3-9) is meshed with an upper end of the gear ring (3-8); a stirring motor (3-10) is fixed to the right side wall of the mixing tank (3-1); the stirring motor (3-10) is connected to an external power supply; an output shaft of the stirring motor (3-10) is connected to the gear (3-9) via a shaft and a sealed bearing; A number one connecting rod (3-11), wherein the number of the number one connecting rods (3-11) is several and respectively distributed in an annular shape and fixed between the connecting ring (3-7) and the gear ring (3-8), and a number of number two connecting rods (3-12) are fixed on the number one connecting rod (3-11); Rotating rods (3-13), the number of the rotating rods (3-13) being several and respectively connected to the second connecting rod (3-12); a plurality of rotating balls (3-14) being rotatably embedded on the outer wall of the rotating rod (3-13), the rotating balls (3-14) being abutted against the inner ring wall of the mixing tank (3-1); A filtering mechanism (4), the filtering mechanism (4) is connected to the mixing mechanism (3); the bottom of the right side wall of the mixing tank (3-1) is connected to a sedimentation tank (7) through a No. 3 water outlet pipe, and the filtering mechanism (4) is arranged in the sedimentation tank (7); the right side of the top plate of the sedimentation tank (7) is connected through a No. 1 connecting pipe (8); the filtering mechanism (4) comprises: A filter (4-1), wherein the filter (4-1) is arranged at the bottom of the first connecting pipe (8); Brushes (4-2), the number of the brushes (4-2) is several and they are respectively arranged in an annular shape on the inner top plate of the sedimentation tank (7), and the brushes (4-2) are arranged against the bottom of the filter screen (4-1); a third connecting rod (4-3) is fixed to the inner end of the brush (4-2); A rotating motor (4-4) is fixed on the top plate of the sedimentation tank (7), and the rotating motor (4-4) is connected to an external power source; the output shaft of the rotating motor (4-4) passes through the sedimentation tank (7) through a sealed bearing and a shaft, and is connected to a plurality of No. 3 connecting rods (4-3); A discharge mechanism (5), wherein the discharge mechanism (5) is connected to the filtering mechanism (4); A connecting mechanism (6), the connecting mechanism (6) is provided on the discharge mechanism (5) and the first water inlet pipe (1); the connecting mechanism (6) comprises: A second connecting pipe (6-1), the second connecting pipe (6-1) is connected to the first connecting pipe (8) through the connecting pipe (6-1); the second connecting pipe (6-1) is flush with the first water inlet pipe (1); the second connecting pipe (6-1) is provided with a thread; the right end of the second connecting pipe (6-1) is fixed with a first sealing ring (6-2); A connecting internal threaded pipe (6-3), wherein the connecting internal threaded pipe (6-3) is sleeved on the first water inlet pipe (1) through a threaded connection; The second sealing ring (6-4) is fixed to the left end of the first water inlet pipe (1).

2. The wastewater discharge device of a multi-disc concentrator according to claim 1, characterized in that: A solenoid valve (3-6) is provided on the No. 2 water guide pipe (3-5), and the solenoid valve (3-6) is connected to an external power supply.

3. The wastewater discharge device of a multi-disc concentrator according to claim 1, characterized in that: The discharging mechanism (5) comprises: A bottom cover (5-1), the bottom cover (5-1) being arranged on the bottom opening of the sedimentation tank (7); a sealing gasket (5-2) being fixed on the bottom cover (5-1), and the sealing gasket (5-2) being arranged against the bottom of the sedimentation tank (7); A movable internal threaded tube (5-3), wherein the number of the movable internal threaded tubes (5-3) is two and they are respectively screwed to the left and right sides of the annular wall of the bottom cover (5-1) via shafts and bearings; a screw rod (5-4) is inserted into the movable internal threaded tube (5-3) via a screw thread; the upper end of the screw rod (5-4) is connected to the output shaft of the movable motor (5-5); and the movable motor (5-5) is connected to an external power supply; The fixing frame (5-6) is provided in two pieces and is fixed to the left and right sides of the annular wall of the sedimentation tank (7), respectively. The moving motor (5-5) is fixed to the inner top plate of the fixing frame (5-6), and the lower end of the screw rod (5-4) is screwed to the bottom of the fixing frame (5-6) via a bearing.

Images