Water pollution treatment device for paper mill

Abstract

The invention discloses a paper mill water pollution treatment device which comprises a precipitation treatment pond, a water inlet and a water outlet, the water inlet and the water outlet are communicated with the precipitation treatment pond, the precipitation treatment pond is rectangular, a V-shaped bottom with a V-shaped section is arranged at the bottom of the interior of the precipitation treatment pond, a sludge output mechanism matched with the V-shaped bottom is arranged at the bottom of the precipitation treatment pond, and the sludge output mechanism is arranged at the bottom of the precipitation treatment pond. The sedimentation treatment pond is arranged to be of a V-shaped structure, sediments can be gathered in the center of the V-shaped bottom, the sludge pump is arranged to be of a movable structure, and during suction, the sludge pump is driven by the movable driving mechanism to move to the other end along one end of the V-shaped bottom, so that the whole bottom is sucked, sludge can be completely pumped out, and the efficiency is improved. Sludge scraping equipment does not need to be additionally arranged and matched with the device, sludge is not prone to being stirred and floating in the suction process, and residues are reduced. The sealing sleeve is matched with the hard blow-off pipe, so that the hard blow-off pipe can be sealed, and leakage is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution treatment, in particular to a water pollution treatment device for paper mills. Background Art

[0002] The pulp and paper industry is an important basic raw material industry closely related to the development of the national economy and social undertakings. It has the characteristics of sustainable development and is also an important people's livelihood industry, undertaking important tasks such as prospering the market, increasing exports, expanding employment, and serving "agriculture, rural areas, and farmers". It plays an important role in economic and social development. The paper industry is characterized by intensive capital and technology, significant scale benefits, strong industrial relevance, and a large market capacity. It is an important force driving the development of industries such as forestry, agriculture, printing, packaging, and machinery manufacturing, and has become a new growth point in the development of China's national economy. It is a circular economy industry with high scientific and technological content in China's national economy and occupies a crucial position in the national economy.

[0003] With the development of the paper industry, the wastewater discharge from pulp and paper production has also increased, causing a large amount of resource waste and environmental pollution, bringing great pressure to the environment. Paper mill wastewater refers to the wastewater generated in the pulp and paper process, including pulping cooking waste liquid, washing wastewater, bleaching wastewater, and paper machine white water. Paper mill wastewater has a complex composition and poor biodegradability, belonging to industrial wastewater that is relatively difficult to treat and is one of the main industrial pollution sources in China.

[0004] Among them, an important process of wastewater treatment is sedimentation separation. By adding chemicals to the wastewater and sedimenting in a sedimentation tank, the flocs in the wastewater can precipitate and thus be separated. The sediment in the sedimentation tank is discharged through a sludge pump. In the prior art, the sludge pump is fixed in the sedimentation tank to keep it stationary, and equipment such as a sludge scraper is used to scrape the sludge to the position of the sludge pump to cooperate with the sludge pump to pump out the sludge. However, when the sludge scraper works, it will stir the water flow, stirring up the sediment again to a floating state, affecting the sludge collection effect, and if there is more sediment, the sludge scraper may not be able to scrape it. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art and propose a water pollution treatment device for paper mills, in which the sludge pump can be movably arranged and can move along the bottom of the sedimentation treatment tank, so as to facilitate the collection and removal of sludge.

[0006] To achieve the above object, the present invention provides a water pollution treatment device for a paper mill, which includes a sedimentation treatment tank, an inlet and an outlet communicated with the sedimentation treatment tank. The sedimentation treatment tank is rectangular, and the bottom of the inner tank of the sedimentation treatment tank is provided with a V-shaped bottom with a cross-section in the shape of "V". A sludge output mechanism matching with the V-shaped bottom is arranged at the bottom of the sedimentation treatment tank. The sludge output mechanism includes a pump body support frame horizontally arranged in the V-shaped bottom and at least one sludge pump arranged on the pump body support frame. A moving drive mechanism for driving the pump body support frame to reciprocate along the longitudinal extension direction of the V-shaped bottom is further arranged in the sedimentation treatment tank. The output end of the sludge pump faces the bottom of the V-shaped bottom, and a rigid sewage discharge pipe is arranged at the output end. A sealing sleeve matching with the rigid sewage discharge pipe is arranged on the pool wall of the sedimentation treatment tank, and the rigid sewage discharge pipe is axially slidably connected with the sealing sleeve.

[0007] Preferably, a second rigid pipe for cooperating with the rigid sewage discharge pipe is further arranged outside the sedimentation treatment tank, and the second rigid pipe is axially slidably sleeved and connected with the rigid sewage discharge pipe.

[0008] Preferably, a branch pipe is arranged on the second rigid pipe. The branch pipe is communicated with the second rigid pipe through a first three-way valve. The other end of the branch pipe is communicated with the middle or upper part of the sedimentation treatment tank, and the sludge pump is a two-way pump.

[0009] Preferably, first magnetic couplers are arranged at both ends of the pump body support frame. The moving drive mechanism includes linear drivers arranged on both sides of the sedimentation treatment tank. The linear drivers are arranged at both ends of the linear drivers. A second magnetic coupler for magnetically cooperating with the first magnetic coupler is arranged on the moving part of the linear driver.

[0010] Preferably, a scum removal mechanism is further arranged at the top of the sedimentation treatment tank. The scum removal mechanism includes a blowing device, sliding rods arranged at both ends of the blowing device, and a chain plate elevator arranged at one end of the sedimentation treatment tank. The chain plate elevator is inclined, and the end with a lower horizontal height of the chain plate elevator sinks into the sedimentation treatment tank, and the other end extends outside the sedimentation treatment tank. Both ends of the blowing device are slidably connected with the sliding rods through sliding parts and can translate along the sliding rods in a direction close to or away from the chain plate elevator. The blowing device is inclined towards the side close to the chain plate elevator.

[0011] Preferably, the sliding rods are arranged in the same direction as the linear drivers. First arm bodies extending towards the direction of the linear drivers are arranged at both ends of the blowing device. A transmission connecting piece is arranged upwards on the moving part of the linear driver and is used for cooperating with the first arm bodies to connect or separate from the first arm bodies.

[0012] Preferably, the transmission connecting member includes a lifting cylinder disposed upward, a second arm body provided on the cylinder arm of the lifting cylinder, and a slot for plugging and cooperating with the first arm body is provided on the second arm body.

[0013] Preferably, a second magnetic coupler is an electromagnet coupler.

[0014] Preferably, inclined baffles for cooperating with the chain plate elevator are provided on both sides of the chain plate elevator.

[0015] Preferably, a number of inclined tubes are provided in the middle of the sedimentation treatment tank and are inclined.

[0016] Preferably, pump body limiting slide rods for cooperating with the pump body support frame are laid on both sides of the V-shaped bottom, and pump body sliding sleeves for slidingly cooperating with the pump body limiting slide rods are provided at both ends of the pump body support frame.

[0017] Preferably, the water inlet includes a water inlet pipe and a follow-up chemical dosing mechanism provided at the outlet position of the water inlet pipe. The follow-up chemical dosing mechanism includes an impeller provided at the outlet position of the water inlet pipe, a rotating bracket synchronously and drivingly connected to the impeller. A hose is provided on the outer periphery of the rotating bracket. At least two rollers for cooperating with the hose to press the hose are provided circumferentially on the rotating bracket. The rollers are arranged in an annular array. The input end of the hose is communicated with a chemical dosing tank, and the output end is communicated with the inside of the sedimentation treatment tank.

[0018] Preferably, the water inlet includes a water inlet pipe and a follow-up chemical dosing mechanism provided at the outlet position of the water inlet pipe. The follow-up chemical dosing mechanism includes an impeller provided at the outlet position of the water inlet pipe, a rotating bracket synchronously and drivingly connected to the impeller. A hose is provided on the outer periphery of the rotating bracket. At least two rollers for cooperating with the hose to press the hose are provided circumferentially on the rotating bracket. The rollers are arranged in an annular array. The input end of the hose is communicated with a chemical dosing tank, and the output end is communicated with the inside of the sedimentation treatment tank.

[0019] Preferably, a shell cover is provided on the upper side of the follow-up chemical dosing mechanism. The rotating bracket and the hose are both provided inside the shell cover. A number of chemical dosing outlets are provided circumferentially on the shell cover, and a channel communicating with each chemical dosing outlet is provided inside. The output end of the hose is communicated with the input end of the channel.

[0020] Beneficial effects of a water pollution treatment device for a paper mill according to the present invention: By setting the sedimentation treatment tank in a V-shaped structure, the sediment can converge at the center of the V-shaped bottom. The sludge pump is set as a movable structure. During suction, the sludge pump is driven by a moving drive mechanism to move along one end of the V-shaped bottom to the other end, so as to suck the entire bottom, and the sludge can be completely pumped out without the need for an additional sludge scraping device to cooperate. During the suction process, the sludge is not easily stirred and floated, reducing residues. The cooperation of the sealing sleeve and the rigid sewage pipe can achieve the sealing of the rigid sewage pipe and avoid leakage.

[0021] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. Brief Description of the Drawings

[0022] Figure 1 Fig. 1 is a schematic three-dimensional structure diagram of Embodiment 1 of a water pollution treatment device for a paper mill according to the present invention.

[0023] Figure 2 Fig. 2 is a schematic side view structure diagram of Embodiment 1 of a water pollution treatment device for a paper mill according to the present invention.

[0024] Figure 3 Fig. 3 is a schematic bottom view structure diagram of Embodiment 1 of a water pollution treatment device for a paper mill according to the present invention.

[0025] Figure 4 Fig. 4 is a schematic cross-sectional structure diagram of Embodiment 1 of a water pollution treatment device for a paper mill according to the present invention.

[0026] Figure 5 Figs. 5 and 6 are schematic front view structure diagrams of Embodiments 2 and 3 of a water pollution treatment device for a paper mill according to the present invention.

[0027] Figure 6 Fig. 7 is a schematic front view structure diagram of a follow-up dosing mechanism.

[0028] Figure 7 Fig. 8 is a schematic structure diagram of the shell cover, rotating bracket, and hose of the follow-up dosing mechanism.

[0029] In the figures: 1 - sedimentation treatment tank, 2 - pump body support frame, 3 - sludge pump, 4 - rigid sewage pipe, 5 - sealing sleeve, 6 - linear actuator, 7 - blowing device, 8 - sliding rod, 9 - chain plate elevator, 10 - transmission connecting piece, 11 - water inlet, 12 - water outlet, 21 - first magnetic coupler, 51 - branch pipe, 52 - first three-way valve, 61 - second magnetic coupler, 81 - first arm body, 101 - V-shaped bottom, 102 - pump body limit sliding rod, 103 - pump body sliding sleeve, 111 - water inlet pipe, 112 - impeller, 113 - rotating bracket, 114 - roller, 115 - hose, 116 - dosing tank, 119 - shell cover, 1191 - medicine outlet. Detailed Embodiments

[0030] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and not to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0031] In the description of the present invention, it should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.

[0033] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Embodiment 1:

[0035] Refer to Figures 1 - 4, a water pollution treatment device for a paper mill according to the present invention, includes a sedimentation treatment tank 1, a water inlet 11 and a water outlet 12 communicated with the sedimentation treatment tank 1. The sedimentation treatment tank 1 is rectangular, and a V-shaped bottom 101 with a cross-section in the shape of "V" is provided at the bottom of the inner tank of the sedimentation treatment tank 1. A sludge output mechanism is provided at the bottom of the sedimentation treatment tank 1. The sludge output mechanism includes a pump support frame 2 horizontally arranged in the V-shaped bottom 101 and a sludge pump 3 arranged on the pump support frame 2. A moving drive mechanism for driving the pump support frame 2 to reciprocate along the longitudinal extension direction of the V-shaped bottom 101 is further provided in the sedimentation treatment tank 1. The output end of the sludge pump 3 faces the bottom of the V-shaped bottom 101, and a rigid sewage discharge pipe 4 is provided at the output end. A sealing sleeve 5 matched with the rigid sewage discharge pipe 4 is provided on the pool wall of the sedimentation treatment tank 1, and the rigid sewage discharge pipe 4 is axially slidably connected with the sealing sleeve 5. In this embodiment, the sedimentation treatment tank 1 is set as a V-shaped structure, so that the sediment can converge at the center of the V-shaped bottom 101. The sludge pump 3 is set as a movable structure. During suction, the sludge pump 3 is driven by the moving drive mechanism to move from one end of the V-shaped bottom 101 to the other end, so as to suck the whole bottom, and the sludge can be completely pumped out without additionally arranging a sludge scraping device to cooperate with it. During the suction process, the sludge is not easily stirred and floated, reducing the residue. The cooperation of the sealing sleeve 5 and the rigid sewage discharge pipe 4 can achieve the sealing of the rigid sewage discharge pipe 4 and avoid leakage.

[0036] Refer to Figure 1 , Figure 4 , both ends of the pump support frame 2 are provided with first magnetic couplers 21. The moving drive mechanism includes linear drivers 6 arranged on both sides of the sedimentation treatment tank 1. The linear drivers 6 are arranged at both ends of the linear drivers 6, and a second magnetic coupler 61 for magnetically cooperating with the first magnetic coupler 21 is provided on the moving part of the linear driver 6. The moving drive mechanism realizes transmission through the cooperation of the first magnetic coupler 21 and the second magnetic coupler 61. The linear driver 6 is arranged outside the sedimentation treatment tank 1, without contacting the sewage, protecting the linear driver 6 and facilitating the maintenance of the linear driver 6. The internal structure of the sedimentation treatment tank 1 is simpler, and the stirring influence on the sewage during the moving process is smaller.

[0037] Refer to Figure 1 , and in order to facilitate the cooperation with other pipes, a second rigid pipe 5 for cooperating with the rigid sewage discharge pipe 4 is further provided outside the sedimentation treatment tank 1. The second rigid pipe 5 is axially slidably sleeved and connected with the rigid sewage discharge pipe 4, and the second rigid pipe 5 keeps its position fixed, which is convenient for connecting with other pipes.

[0038] Specifically, a plurality of inclined pipes (not shown in the figure) are provided in the middle of the sedimentation treatment tank 1. It can prevent the sediment from floating up again.

[0039] See also Figure 4 The two sides of the V-shaped bottom 101 are provided with pump body limiting slide bars 102 for cooperating with the pump body support frame 2, and the two ends of the pump body support frame 2 are provided with pump body sliding sleeves 103 for slidingly cooperating with the pump body limiting slide bars 102. The pump body support frame 2 has a sliding limiting and supporting function to prevent it from touching the bottom.

[0040] Embodiment 2:

[0041] See also Figure 5 On the basis of the first embodiment, in order to facilitate flushing the bottom of the sedimentation treatment tank 1, a branch pipe 51 is provided on the second hard pipe 5, and the branch pipe 51 is connected to the second hard pipe 5 through the first three-way valve 52. The other end of the branch pipe 51 is connected to the upper layer of the sedimentation treatment tank 1 or to an external water source, and the sludge pump 3 is a bidirectional pump. The sludge pump 3 of this embodiment can reversely suck and can perform backwashing. When it is necessary to flush the bottom of the sedimentation treatment tank 1, the sludge pump 3 is controlled to reverse and cooperate with the mobile drive mechanism to fully flush the bottom of the sedimentation treatment tank 1, which is convenient for cleaning the bottom of the sedimentation treatment tank 1. It can also be backwashed when it is necessary to stir the sediment in the sedimentation treatment tank 1, so that the sediment in the sedimentation treatment tank 1 is effectively dispersed.

[0042] Embodiment three:

[0043] See also Figure 5 On the basis of Embodiment 1 or 2, in order to facilitate the skimming of scum in the sedimentation treatment tank 1, a scum removal mechanism is further provided on the top of the sedimentation treatment tank 1, and the scum removal mechanism includes a blowing device 7, a sliding rod 8 arranged at both ends of the blowing device 7, and a chain plate elevator 9 arranged at one end of the sedimentation treatment tank 1. The chain plate elevator 9 is arranged at an angle, and the end of the chain plate elevator 9 with a lower horizontal height is sunk into the sedimentation treatment tank 1, and the other end extends to the outside of the sedimentation treatment tank 1. The two ends of the blowing device 7 are slidably connected to the sliding rod 8 through a sliding member and can be translated along the sliding rod 8 toward or away from the chain plate elevator 9. The blowing device 7 is inclined toward the side close to the chain plate elevator 9. When collecting scum in this embodiment, the blowing device 7 is first controlled to move to one end away from the chain plate elevator 9, and then the blowing device 7 is turned on, and the blowing device 7 is driven to move horizontally in the direction of the chain plate elevator 9. The gas blown by the blowing device 7 blows the scum to the chain plate elevator 9. One end of the chain plate elevator 9 extends into the pool, and the scum is fished out by the chain plate elevator 9. The scum fishing is more convenient, and there is no need to stir the liquid in the sedimentation tank to avoid affecting the sedimentation.

[0044] See also Figure 5, in order to drive the movement of the air blowing device 7, the sliding rod 8 is arranged in the same direction as the linear driver 6. The two ends of the air blowing device 7 are provided with first arm bodies 81 extending towards the linear driver 6. On the moving part of the linear driver 6, there is a transmission connecting member 10 arranged upwards and used for cooperating with the first arm body 81 to connect or separate from the first arm body 81. The transmission connecting member 10 includes a lifting cylinder 101 arranged upwards and a second arm body 102 arranged on the cylinder arm of the lifting cylinder 101. The second arm body 102 is provided with a slot 1021 for plugging and cooperating with the first arm body 81. In this embodiment, the air blowing device 7 and the sludge pump 3 share a set of linear driver 6 for driving, which saves costs and reduces the volume of the equipment. When it is necessary to drive the air blowing device 7, the moving part of the linear driver 6 moves to the lower side of the first arm body 81, and the lifting cylinder 101 drives the second arm body 102 to rise, so that the slot 1021 of the second arm body 102 is plugged and cooperated with the first arm body 81, and the connection between the two can be completed. Then the linear driver 6 can drive the air blowing device 7 to move. When separation is required, the lifting cylinder 101 drives the second arm body 102 to descend.

[0045] Specifically, the second magnetic coupler 61 is an electromagnetic coupler. The electromagnetic coupler has magnetism when energized and loses magnetism when powered off. It can be controlled to connect or separate from the first magnetic coupler 21 by controlling the power on and off of the electromagnetic coupler, and it can be controlled to separate from the first magnetic coupler 21 when the linear driver 6 drives the air blowing device 7.

[0046] Specifically, several positioning sensors for positioning the positions of the air blowing device 7 and the first magnetic coupler 21 are further arranged on the sedimentation treatment tank 1.

[0047] Specifically, inclined baffles (not shown in the figure) for cooperating with the chain plate elevator 9 are arranged on both sides of the chain plate elevator 9. It is convenient to guide the floating scum to the chain plate elevator 9.

[0048] Embodiment 4:

[0049] Refer to Figure 6 、 Figure 7The water inlet 11 includes a water inlet pipe 111 and a follow-up dosing mechanism arranged at the outlet position of the water inlet pipe 111, the follow-up dosing mechanism includes an impeller 112 arranged at the outlet position of the water inlet pipe 111, and a rotating bracket 113 synchronously connected to the impeller 112, a hose 115 is arranged on the outer periphery of the rotating bracket 113, and at least two rollers 114 for cooperating with the hose 115 to compress the hose 115 are circumferentially arranged on the rotating bracket 113, and the rollers 114 are arranged in a ring array, and the input end of the hose 115 is connected to the dosing tank, and the output end is connected to the inside of the sedimentation treatment tank 1. In the present embodiment, a follow-up dosing mechanism is provided, which can mix the medicine liquid into the water flow simultaneously with the power of the incoming water flow in the water inlet pipe 111, so that the dosing is more convenient and automatic, and no additional power source is required, and the amount of medicine fed can be automatically adjusted according to the incoming water flow rate. When in use, the water flow power of the water inlet pipe 111 can drive the impeller 112 to rotate, and the impeller 112 drives the rotating bracket 113 to rotate. The rotating bracket 113 continuously rotates and squeezes the hose 115 through the roller 114, so as to extract the medicine liquid and mix it into the incoming water flow. The faster the water flow rate and the faster the rotating bracket 113 rotates, the more medicine is added, and vice versa.

[0050] Specifically, the medicine adding tank is connected to the hose 115 through a medicine delivery tube, and a second three-way valve is also provided on the medicine delivery tube, and one interface of the second three-way valve is open. When no medicine is needed, the second three-way valve can be adjusted to a state of being connected to the open interface, at which time the medicine delivery tube is not connected to the medicine adding tank, is in an empty state, and no medicine is added.

[0051] See also Figure 6 , Figure 7 A shell cover 119 is provided on the upper side of the follow-up dosing mechanism, and an annular chamber is provided in the shell cover 119. The rotating bracket 113 and the hose 115 are both provided in the annular chamber of the shell cover 119. The shell cover 119 is provided with a plurality of drug outlets 1191 in the circumference, and a channel connected to each of the drug outlets 1191 is provided inside. The output end of the hose 115 is connected to the input end of the channel. The drug solution can be evenly sprayed into the circumferential sewage, and the dosing is more uniform.

[0052] Working process of the present invention:

[0053] In the working process of the paper mill water pollution treatment device of the present invention, sewage is introduced into the sedimentation treatment tank 1 through the water inlet 11, and the sewage is precipitated in the sedimentation treatment tank 1. When the sediment sinks, it can be gathered at the center of the V-shaped bottom 101 under the action of gravity. When sucking the sludge, the sludge pump 3 is driven by the mobile driving mechanism to move from one end of the bottom of the V-shaped bottom 101 to the other end, thereby sucking the entire bottom, and the sludge can be completely sucked out.

[0054] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The electric slide rail slider, cylinder, welding machine, electric telescopic rod, and internal components of the controller all adopt conventional models in the prior art, and their internal structures belong to the prior art structures. Workers can complete normal operations on them according to the prior art manuals. Coupled with the circuit connection adopting the conventional connection method in the prior art, no specific description will be made here.

[0055] It should be noted that although the above-mentioned embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications made to the embodiments described in this article, or the equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, and directly or indirectly applying the above technical solutions to other related technical fields, are all included in the protection scope of the present invention patent.

Claims

1. A water pollution treatment device for a paper mill, comprising a sedimentation treatment tank (1), a water inlet (11) and a water outlet (12) communicated with the sedimentation treatment tank (1), characterized in that: The sedimentation treatment tank (1) is rectangular, and a V-shaped bottom (101) with a "V"-shaped cross-section is provided at the bottom of the sedimentation treatment tank (1). A sludge output mechanism matching the V-shaped bottom (101) is provided at the bottom of the sedimentation treatment tank (1). The sludge output mechanism includes a pump body support frame (2) horizontally arranged in the V-shaped bottom (101) and at least one sludge pump (3) arranged on the pump body support frame (2). A moving drive mechanism for driving the pump body support frame (2) to reciprocate along the longitudinal extension direction of the V-shaped bottom (101) is further provided in the sedimentation treatment tank (1). The output end of the sludge pump (3) faces the bottom of the V-shaped bottom (101), and a rigid sewage discharge pipe (4) is provided at the output end. A sealing sleeve (5) matching the rigid sewage discharge pipe (4) is provided on the pool wall of the sedimentation treatment tank (1). The rigid sewage discharge pipe (4) and the sealing sleeve (5) are axially slidably connected.

2. The papermill water pollution treatment device according to claim 1, wherein: A second rigid pipe (41) for matching with the rigid sewage discharge pipe (4) is further provided outside the sedimentation treatment tank (1). The second rigid pipe (41) and the rigid sewage discharge pipe (4) are axially slidably sleeved and connected.

3. The papermill water pollution treatment device according to claim 3, wherein: A branch pipe (51) is provided on the second rigid pipe (41). The branch pipe (51) is communicated with the second rigid pipe (41) through a first three-way valve (52). The other end of the branch pipe (51) is communicated with the upper layer of the sedimentation treatment tank (1) or an external water source. The sludge pump (3) is a two-way pump.

4. The papermill water pollution treatment device according to claim 1, characterized in that: First magnetic couplers (21) are provided at both ends of the pump body support frame (2). The moving drive mechanism includes linear drivers (6) arranged on both sides of the sedimentation treatment tank (1). The linear drivers (6) are arranged at both ends of the linear drivers (6). A second magnetic coupler (61) for magnetically matching with the first magnetic coupler (21) is provided on the moving part of the linear driver (6).

5. The papermill water pollution treatment device according to claim 4, characterized in that: A scum removal mechanism is further provided at the top of the sedimentation treatment tank (1). The scum removal mechanism includes a blowing device (7), slide bars (8) arranged at both ends of the blowing device (7), and a chain plate elevator (9) arranged at one end of the sedimentation treatment tank (1). The chain plate elevator (9) is inclined. The end with a lower horizontal height of the chain plate elevator (9) sinks into the sedimentation treatment tank (1), and the other end extends outside the sedimentation treatment tank (1). Both ends of the blowing device (7) are slidably connected to the slide bars (8) through sliding parts and can translate along the slide bars (8) in a direction close to or away from the chain plate elevator (9). The blowing device (7) is inclined towards the side close to the chain plate elevator (9).

6. The papermill water pollution treatment device according to claim 5, wherein: The slide bars (8) are arranged in the same direction as the linear drivers (6). First arm bodies (81) extending towards the direction of the linear drivers (6) are provided at both ends of the blowing device (7). A transmission connecting part (10) which is arranged upwards and used for matching with the first arm bodies (81) to connect or separate from the first arm bodies (81) is provided on the moving part of the linear driver (6).

7. The papermill water pollution treatment device according to claim 6, characterized in that: The transmission connecting member (10) comprises a lifting cylinder (101) arranged upward, and a second arm body (102) arranged on the cylinder arm of the lifting cylinder (101), wherein the second arm body (102) is provided with a slot (1021) for plugging and cooperating with the first arm body (81).

8. The papermill water pollution treatment device according to claim 1, characterized in that: Pump body limiting slide bars (102) for cooperating with the pump body support frame (2) are laid on both sides of the V-shaped bottom (101), and pump body sliding sleeves (103) for slidably cooperating with the pump body limiting slide bars (102) are provided at both ends of the pump body support frame (2).

9. The papermill water pollution treatment device according to claim 1, wherein: The water inlet (11) comprises a water inlet pipe (111) and a follow-up dosing mechanism arranged at the outlet of the water inlet pipe (111); the follow-up dosing mechanism comprises an impeller (112) arranged at the outlet of the water inlet pipe (111), a rotating bracket (113) synchronously connected to the impeller (112); a hose (115) is arranged on the periphery of the rotating bracket (113); at least two rollers (114) are arranged in a circumferential direction of the rotating bracket (113) for cooperating with the hose (115) to press the hose (115); the rollers (114) are arranged in a ring array; the input end of the hose (115) is connected to a dosing tank, and the output end is connected to the interior of the sedimentation treatment tank (1).

10. The papermill water pollution treatment device according to claim 9, characterized in that: A shell cover (119) is provided on the upper side of the follow-up drug adding mechanism, the rotating bracket (113) and the hose (115) are both arranged in the shell cover (119), the shell cover (119) is provided with a plurality of drug outlets (1191) in the circumference, and a channel connected to each of the drug outlets (1191) is provided inside, and the output end of the hose (115) is connected to the input end of the channel.

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