Multi-stage filtering device

Abstract

The utility model belongs to the technical field of filtering equipment, particularly relates to a multi-stage filtering device, and aims to solve the problems of low filtering efficiency and poor filtering effect of the conventional filtering device for treating wastewater containing sodium lignin sulfonate in the prior art, and adopts the following scheme that the multi-stage filtering device comprises a box body, and an accommodating groove for accommodating sewage is formed in the box body; a communication groove communicated with the containing groove is formed in the box body, a filter box used for filtering sewage is arranged in the communication groove in a sliding mode, a set of swing assemblies are arranged between the box body and the filter box, and the swing assemblies are used for driving the filter box to swing; a fixed plate is fixed at the side end of the box body, and an inverted U-shaped communicating pipe for feeding water into the filter box is fixed in the fixed plate; the multistage filtering device is simple in structure, convenient to operate, high in filtering efficiency, good in treatment effect and wide in application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter equipment technical field especially relates to a multistage filter device. BACKGROUND

[0002] In the working process of papermaking in paper mill, a large amount of wastewater will be produced, and a large amount of wastewater rich in wood fiber and other impurities will be produced in the process of slagging, washing pulp and rinsing, due to the particularity of papermaking raw materials and production process, the papermaking wastewater is complex in composition, high in pollutant concentration, wide in fluctuation range and poor in biodegradability, if the wastewater is directly discharged, it will inevitably cause serious environmental pollution, and the wood fiber contained therein is a waste of resources.

[0003] In the field of wastewater treatment, especially for wastewater containing sodium lignosulfonate, the traditional filter device often has low filtering efficiency and poor filtering effect. At the same time, for the treatment of harmful substances (such as hydrochloric acid) in wastewater, there is also a lack of efficient stirring device, which leads to insufficient reaction and poor treatment effect. UTILITARIAN CONTENT

[0004] The utility model aims at solving the problem of low filtering efficiency and poor filtering effect of the traditional filter device in the treatment of wastewater containing sodium lignosulfonate in the prior art, and provides a multistage filter device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A multistage filter device, comprising a box body, a containing groove for containing sewage is formed in the box body;

[0007] Among them, the box body is provided with a communication groove connected with the containing groove, a filter box for filtering sewage is slidably arranged in the communication groove, a group of swing assemblies are arranged between the box body and the filter box, and the swing assemblies are used for driving the filter box to swing;

[0008] The side end of the box body is fixedly provided with a fixed plate, and a reverse U-shaped communication pipe for feeding water into the filter box is fixedly arranged in the fixed plate;

[0009] A stirring assembly is fixedly arranged in the communication groove, a trapezoidal hollow plate is arranged in the communication groove, a feeding port connected with the containing groove is formed in the trapezoidal hollow plate, the feeding port is used for feeding hydrochloric acid into the containing groove, and the stirring assembly is used for stirring the wastewater and hydrochloric acid contained in the containing groove.

[0010] In a possible design, the swing assembly comprises two first grooves formed in the box, two sliding blocks sliding in the first grooves, a connecting rod fixed to the side end of each of the sliding blocks, the connecting rods outwardly and movably penetrating the side end of the box, a connecting plate fixed to the side end of the connecting rods, a sliding groove formed in the connecting plate, a sliding column sliding in the sliding groove, an extension plate fixed to the side end of the box, a rotating rod rotating at the top end of the extension plate, the sliding column being fixed to the top end of the rotating rod, and a first driving motor fixed to the bottom end of the extension plate and fixedly connected with the rotating rod through a shaft coupling.

[0011] In a possible design, the communication groove is fixed with a filter screen for secondary filtering of the wastewater.

[0012] In a possible design, the stirring assembly comprises a rotating shaft rotating in the trapezoidal hollow plate, and a second driving motor fixed in the trapezoidal hollow plate and fixedly connected with the rotating shaft through a shaft coupling.

[0013] In a possible design, the box is fixedly communicated with a drain pipe and a discharge pipe, the drain pipe is used for draining water, and the discharge pipe is used for discharging the sodium lignosulfonate.

[0014] In a possible design, the drain pipe and the sealing valve are both provided with sealing valves.

[0015] In the application, the outlet pipe of the water pump is connected to the quick connector on the inverted U-shaped communication pipe, the wastewater generated in papermaking is sent to the filter box through the water pump, the water falls into the filter screen after being filtered by the filter box, the water is subjected to secondary filtering, then flows into the containing groove through the trapezoidal hollow plate, an appropriate amount of hydrochloric acid is put into the containing groove through the feeding port, the rotating shaft and the plurality of stirring rods are driven to rotate by starting the second driving motor, the hydrochloric acid and the filtered water are mixed by the rotation of the plurality of stirring rods, the mixture is kept still after being stirred, the sodium lignosulfonate is dissolved by the hydrochloric acid, the filtered water is discharged through the drain pipe, and the sodium lignosulfonate is discharged through the discharge pipe.

[0016] The first driving motor is started to drive the rotating rod to rotate, the rotating rod drives the sliding column to perform circular motion, the sliding column slides in the sliding groove when performing the circular motion, the sliding column drives the connecting plate to relatively reciprocate, the connecting plate drives the two sliding blocks to reciprocate in the two first grooves through the two connecting rods, and the two sliding blocks drive the filter box to reciprocate, so that the filter box can be effectively prevented from being blocked.

[0017] Beneficial effects: in the application, the multi-stage filtering device can drive the filter box to swing through the design of the swing assembly, so that the filtering efficiency is improved, and the impurities in the wastewater can be effectively removed.

[0018] The utility model discloses a multistage filtering device, through the design of stirring subassembly, can carry out sufficient stirring to the wastewater and hydrochloric acid in the accommodating groove, improves reaction efficiency, ensures that harmful material can be effectively removed,

[0019] The multistage filtering device of the utility model has simple structure, convenient operation, high filtering efficiency and good treatment effect, and has wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 A front view of a multistage filtering device is provided for the utility model;

[0021] Fig. 2 A sectional view of a multistage filtering device is provided for the utility model;

[0022] Fig. 3 A partial sectional view of a multistage filtering device is provided for the utility model.

[0023] In the drawing: 1, box body; 2, accommodating groove; 3, communicating groove; 4, filter box; 5, fixed plate; 6, inverted U communicating pipe; 7, connecting rod; 8, connecting plate; 9, sliding groove; 10, sliding column; 11, rotating rod; 12, first drive motor; 13, extension plate; 14, trapezoidal hollow plate; 16, second drive motor; 17, rotating shaft; 18, stirring rod; 19, drain pipe; 20, discharge pipe; 21, sealing valve; 22, first recess; 23, sliding block; 24, filter screen; 25, feeding port. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Embodiment 1: refer to Figs. 1-3The utility model relates to a kind of multi-stage filtering device, which is applied in filtering equipment technical field, including box 1, and the accommodating groove 2 for accommodating sewage is set in box 1.It is also set in box 1 with the communicating groove 3 being connected with accommodating groove 2, and the filter box 4 for filtering sewage is slidably arranged in communicating groove 3.To drive filter box 4 to swing, improve filtering effect, a group of swing components are arranged between box 1 and filter box 4.The specific structure of swing component includes two first grooves 22 set in box 1, and sliding block 23 is slidably arranged in two first grooves 22.The side end of two sliding blocks 23 is fixed with connecting rod 7, and two connecting rods 7 are outwardly movable and penetrate the side end of box 1, and are fixed with the same connecting plate 8.Slotted 9 is set in connecting plate 8, and slide column 10 is slidably arranged in slotted 9.The side end of box 1 is fixed with extension plate 13, and the top end of extension plate 13 is rotatably provided with rotating rod 11, and slide column 10 is fixed to the top end of rotating rod 11.The bottom end of extension plate 13 is fixed with first drive motor 12, and first drive motor 12 is fixedly connected with rotating rod 11 through coupling.When first drive motor 12 works, rotating rod 11 can be driven to rotate, and then connecting plate 8 and connecting rod 7 are driven to reciprocate by the cooperation of slide column 10 and slotted 9, so that filter box 4 is driven to swing in communicating groove 3.

[0026] To send water to filter box 4, the side end of box 1 is fixed with fixed plate 5, and inverted U-shaped connecting pipe 6 for sending water to filter box 4 is fixed in fixed plate 5.The design of inverted U-shaped connecting pipe 6 can ensure that water can flow evenly into filter box 4, improving filtering efficiency.

[0027] To stir waste water and hydrochloric acid in accommodating groove 2, trapezoidal hollow plate 14 is fixed in communicating groove 3, and feeding port 25 is set in trapezoidal hollow plate 14 and is connected with accommodating groove 2, and feeding port 25 is used to pour hydrochloric acid into accommodating groove 2.The stirring assembly includes rotating shaft 17 rotatably arranged in trapezoidal hollow plate 14, and a plurality of stirring rods 18 are uniformly fixed to the surface of rotating shaft 17, and second drive motor 16 is fixedly connected with rotating shaft 17 through coupling and is fixed in trapezoidal hollow plate 14.When second drive motor 16 works, rotating shaft 17 can be driven to rotate, so that waste water and hydrochloric acid in accommodating groove 2 are stirred, and reaction efficiency is improved.

[0028] To further improve filtering effect, filter screen 24 for secondary filtering of waste water is fixed in communicating groove 3.In this way, waste water after preliminary filtering by filter box 4 is subjected to secondary filtering by filter screen 24, which can further improve the cleanliness of waste water.

[0029] Example 2: reference Figs. 1-3On the basis of embodiment 1, for the convenience of drainage and discharging, the box 1 is fixedly connected with a drainage pipe 19 and a discharging pipe 20, the drainage pipe 19 is used for draining water, and the discharging pipe 20 is used for discharging sodium lignosulfonate.

[0030] However, as known by those skilled in the art, the working principle and wiring method of the first driving motor 12 and the second driving motor 16 are common, which belong to conventional means or common general knowledge, and will not be described here again, and those skilled in the art can make any selection according to their needs or convenience.

[0031] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multi-stage filtration device, characterized by, Include: Box (1), the box (1) is provided with a containing groove (2) for containing sewage; Wherein, the box (1) is provided with a communication groove (3) communicated with the containing groove (2), the communication groove (3) is slidably provided with a filter box (4) for filtering sewage, a group of swing assemblies are arranged between the box (1) and the filter box (4), and the swing assemblies are used for driving the filter box (4) to swing; The side end of the box (1) is fixedly provided with a fixed plate (5), and the fixed plate (5) is fixedly provided with a inverted U-shaped communication pipe (6) for sending water into the filter box (4); Stirring assembly, the trapezoidal hollow plate (14) is fixedly provided in the communication groove (3), the trapezoidal hollow plate (14) is provided with a feeding port (25) communicated with the containing groove (2), the feeding port (25) is used for feeding hydrochloric acid into the containing groove (2), and the stirring assembly is used for stirring the wastewater and hydrochloric acid contained in the containing groove (2).

2. A multi-stage filtration device according to claim 1, wherein, The swing assembly comprises two first grooves (22) formed in the box (1), two sliding blocks (23) are slidably arranged in the two first grooves (22), the side ends of the two sliding blocks (23) are fixedly provided with connecting rods (7), the two connecting rods (7) are outwardly movable and penetrate through the side end of the box (1), the side ends of the two connecting rods (7) are fixedly provided with the same connecting plate (8), the connecting plate (8) is provided with a sliding groove (9), a sliding column (10) is slidably arranged in the sliding groove (9), the side end of the box (1) is fixedly provided with an extension plate (13), the top end of the extension plate (13) is rotatably provided with a rotating rod (11), the sliding column (10) is fixed to the top end of the rotating rod (11), and the bottom end of the extension plate (13) is fixedly provided with a first driving motor (12).

3. A multi-stage filtration device according to claim 2, wherein, The communication groove (3) is fixedly provided with a filter screen (24) for secondary filtering of wastewater.

4. A multi-stage filtration device according to any one of claims 1 to 3, wherein The stirring assembly comprises a rotating shaft (17) rotatably arranged in the trapezoidal hollow plate (14), a plurality of stirring rods (18) are uniformly fixed to the surface of the rotating shaft (17), a second driving motor (16) is fixedly arranged in the trapezoidal hollow plate (14), and the second driving motor (16) is fixedly connected with the rotating shaft (17) through a shaft coupling.

5. A multi-stage filtration device according to claim 4, wherein, The box (1) is fixedly communicated with a drain pipe (19) and a discharge pipe (20), the drain pipe (19) is used for draining water, and the discharge pipe (20) is used for discharging sodium lignosulfonate.

6. A multi-stage filtration device according to claim 5, wherein, The drain pipe (19) and the sealing valve (21) are provided with a sealing valve (21).

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