Shearing machine for water treatment

Abstract

The utility model belongs to the technical field of magnetic coagulation water treatment, and particularly relates to a shearing machine for water treatment. The shearing machine comprises a cylinder body, a driving motor, a three-way reaction chamber and a dispersing agent adding device, three channels of the three-way reaction chamber are respectively a feed port and a discharge port which are formed in two sides of the channels and a barrel communicated with the upper part, the barrel is connected with the three-way reaction chamber through a flange, a driving motor is mounted at the top of the barrel, a power output end of the driving motor is connected with a rotating shaft, and the rotating shaft extends into the three-way reaction chamber; shearing impellers are connected to the bottom of the rotating shaft; a special liquid injection valve is arranged on one side, close to the feeding hole, of the three-way reaction chamber and is connected with a dispersing agent adding device. According to the shearing machine, a mixture of magnetic seeds and sludge is sheared and scattered in the three-way reaction chamber, separation of magnetic powder and sludge is promoted, an efficient magnetic separator is matched, the magnetic powder recovery rate is improved and can reach 99.6% or above, and the shearing machine has good economic, environmental and social benefits.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic coagulation water treatment, and particularly relates to a shearing machine for water treatment, and more particularly to a shearing machine dedicated to water treatment and having an efficient dispersion function. Background Art

[0002] In the existing magnetic coagulation water treatment device, it generally includes a magnetic coagulation sedimentation tank and a magnetic powder recovery device. The magnetic powder recovery device mainly includes a shearing machine and a magnetic separator. Through the high-speed rotation of the shearing impeller of the shearing machine, the sludge flocs containing magnetic seeds are sheared and separated. After the treated sludge enters the magnetic separator, the magnetic powder can be fully recovered, improving the magnetic powder recovery rate.

[0003] However, in the actual operation of existing projects, when the medium is thick and viscous due to factors such as high inlet suspended solid concentration and excessive chemical dosage, the combination of magnetic powder and sludge is relatively tight, the flocs formed by the two are not easily dispersed, the magnetic powder is not easily separated, resulting in problems such as reduced magnetic powder recovery rate, serious magnetic powder loss, and high operating cost. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a shearing machine for water treatment, which is dedicated to water treatment and has an efficient dispersion function, and can solve the problems such as the tight combination of magnetic powder and sludge, low magnetic powder recovery rate, and serious magnetic powder loss in the existing magnetic coagulation water treatment device.

[0005] The adopted technical solution is as follows:

[0006] A shearing machine for water treatment includes a cylinder body, a driving motor, and also includes a three-way reaction chamber and a dispersant dosing device;

[0007] The three channels of the three-way reaction chamber are respectively a feed inlet and a discharge outlet provided on both sides of the channel and a cylinder body connected to the upper part. The cylinder body is connected to the three-way reaction chamber through a flange. A driving motor is installed on the top of the cylinder body. The power output end of the driving motor is connected to a rotating shaft, and the rotating shaft extends into the three-way reaction chamber. The bottom of the rotating shaft is connected to a shearing impeller;

[0008] A special injection valve is arranged at a position of the three-way reaction chamber close to the feed inlet, and the special injection valve is connected to the dispersant dosing device.

[0009] Preferably, the rotating shaft is located on the central axis of the cylinder body, and the shearing impeller is located on the horizontal central axis of the three-way reaction chamber.

[0010] As a further preference, the shearing impeller rotates driven by the rotating shaft, and the radius of the formed circle is adapted to the width of the three-way reaction chamber before and after.

[0011] Preferably, the connection between the rotating shaft and the driving motor is sealed with packing to form a sealing device without the need for cooling.

[0012] Preferably, the height of the cylinder is 2 to 5 times the diameter of the tee reaction chamber.

[0013] Preferably, at least one overflow port is provided on the upper side of the cylinder. The cylinder is relatively long, and the overflow port on the upper side can prevent the tee reaction chamber from being blocked during shearing, causing liquid to damage the bearing and extending its service life.

[0014] Preferably, the dispersant dosing device includes a dosing pump and a connecting pipeline, and the connecting pipeline is adapted to a special liquid injection valve for sealed connection.

[0015] Preferably, a special liquid injection valve is provided on one side of the tee reaction chamber close to the feed port. The special liquid injection valve can be connected to a water pipe for cleaning when needed.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the shearer of the present utility model, after the mixture of magnetic seeds and sludge enters the tee reaction chamber, the driving motor drives the shear impeller to rotate at a high speed, so that the mixture of magnetic seeds and sludge is sheared and separated and then enters the magnetic separator for magnetic powder recovery, improving the magnetic powder recovery rate;

[0018] The cylinder of the present utility model is relatively long, the connection between the rotating shaft and the driving motor is sealed with packing, and there is an overflow port on the upper side, which can prevent sludge from entering the upper part and affecting the service life of the bearing;

[0019] The shearer provided by the present utility model is provided with a special liquid injection valve at one end of the tee reaction chamber close to the feed port, and the dispersant enters the tee reaction chamber through the dosing pump, which is beneficial to break up the flocs formed by magnetic powder and sludge and promote the separation of magnetic powder and sludge. Matching with an efficient magnetic separator can improve the magnetic powder recovery effect. The magnetic powder recovery rate can reach more than 99.6%, reducing the operation cost and having good economic, environmental and social benefits. Description of the Drawings

[0020] Figure 1 It is the front view of a shearer for water treatment of the present utility model;

[0021] Figure 2 It is the three-dimensional structure diagram of a shearer for water treatment of the present utility model;

[0022] Figure 3 It is the sectional view of a shearer for water treatment of the present utility model.

[0023] In the figure, 1 is the driving motor, 2 is the cylinder body, 3 is the feed inlet, 4 is the special liquid injection valve, 5 is the discharge outlet, 6 is the three-way reaction chamber, 7 is the chemical dosing pump, 8 is the sealing device, 9 is the rotating shaft, 10 is the shearing impeller, and 11 is the overflow port. Detailed implementation manners

[0024] The accompanying drawings are only for illustrative purposes; hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The orientation or positional relationships indicated by terms such as "upper", "lower", "left", "right", "side", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are 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 should not be construed as a limitation to the present invention.

[0025] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] As Figure 1 、 2 shown, a shearing machine for water treatment includes a cylinder body 2 and a driving motor 1, and also includes a three-way reaction chamber 6 and a dispersant dosing device;

[0028] As Figure 3 shown, the three channels of the three-way reaction chamber 6 are respectively the feed inlet 3 and the discharge outlet 5 provided on both sides of the channel and the cylinder body 2 connected to the upper part. The cylinder body 2 is connected to the three-way reaction chamber 6 through a flange. A driving motor 1 is installed on the top of the cylinder body 2. The power output end of the driving motor 1 is connected to a rotating shaft 9. The rotating shaft 9 extends into the three-way reaction chamber 6, and the bottom of the rotating shaft 9 is connected to a shearing impeller 10. The rotating shaft 9 is located on the central axis of the cylinder body 2, and the shearing impeller 10 is located on the horizontal central axis of the three-way reaction chamber 6.

[0029] The shearing impeller 10 rotates driven by the rotating shaft 9. The radius of the formed circle is adapted to the width of the three-way reaction chamber 6 before and after, so that the shearing impeller 10 will not touch the inner wall of the three-way reaction chamber 6 when rotating, and can maximize the dispersion of the flocs formed by magnetic powder and sludge.

[0030] A special liquid injection valve 4 is arranged at a position of the three-way reaction chamber 6 close to the feed inlet. The special liquid injection valve 4 is connected to the dispersant dosing device. The dispersant dosing device includes a chemical dosing pump 7 and a connecting pipeline. The connecting pipeline is adapted to the special liquid injection valve 4 to achieve a sealed connection.

[0031] As a further preference, a sealing device 8 is provided at the connection between the rotating shaft 9 and the driving motor 1, and packing sealing is adopted without the need for cooling.

[0032] As a further preference, the height of the cylinder body 2 is 3 times the diameter of the three-way reaction chamber 6. Two overflow ports are arranged on the upper side of the cylinder body 2. The overflow ports can prevent the three-way reaction chamber 6 from being blocked during shearing, so that the liquid damages the bearing, and the service life of the equipment is prolonged.

[0033] Preferably, a special liquid injection valve is arranged on one side of the three-way reaction chamber close to the feed port. The special liquid injection valve can be connected to a water pipe and can be cleaned when needed.

[0034] Embodiment 2

[0035] A shearing machine for water treatment, wherein the height of the cylinder body 2 is 4 times the diameter of the three-way reaction chamber 6.

[0036] Three overflow ports are arranged. A special liquid injection valve 4 is also arranged on one side of the three-way reaction chamber 6 close to the feed port 3. The special liquid injection valve can also be connected to a water pipe and can be cleaned when needed.

[0037] Other parts not mentioned are the same as those in Embodiment 1.

[0038] Application Example 1

[0039] The present utility model is applied to a sewage treatment plant in Shandong.

[0040] The designed treatment capacity of this treatment plant is 20,000 m3 / d. The SS of the influent in the magnetic coagulation process is 400 - 800 mg / L, the influent medium is relatively viscous, and the magnetic powder is combined with the sludge relatively tightly. When using a conventional shearing machine, the magnetic powder loss is serious, and the magnetic powder recovery rate is relatively low, only 90 - 95%; in order to reduce the magnetic powder dosage in the treatment plant and lower the operation cost, the original shearing machine equipment is replaced with the shearing machine described in the present utility model, and the magnetic powder recovery rate is increased to more than 99.6%, greatly reducing the operation cost, and having good economic, environmental and social benefits.

[0041] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] Certainly, the above description is not a limitation to the present utility model, nor is the present utility model limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the substantial scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A shearing machine for water treatment, comprising a cylinder body and a driving motor, characterized in that, It also includes a three-way reaction chamber and a dispersant dosing device; The three channels of the three-way reaction chamber are respectively a feed inlet and a discharge outlet provided on both sides of the channel and a cylinder body connected to the upper part. The cylinder body is connected to the three-way reaction chamber through a flange. A driving motor is installed on the top of the cylinder body. The power output end of the driving motor is connected to a rotating shaft, and the rotating shaft extends into the three-way reaction chamber. The bottom of the rotating shaft is connected to a shearing impeller; A special liquid injection valve is arranged on one side of the three-way reaction chamber close to the feed inlet, and the special liquid injection valve is connected to the dispersant dosing device.

2. The shearing machine for water treatment according to claim 1, wherein, The rotating shaft is located on the central axis of the cylinder body, and the shearing impeller is located on the horizontal central axis of the three-way reaction chamber.

3. The shearing machine for water treatment according to claim 2, characterized in that, The shearing impeller rotates driven by the rotating shaft, and the radius of the formed circle is adapted to the width of the three-way reaction chamber before and after.

4. A shearing machine for water treatment according to claim 1, characterized in that, A sealing device is provided at the connection between the rotating shaft and the driving motor, and packing seal is adopted.

5. A shearing machine for water treatment according to claim 1, characterized in that, The height of the cylinder body is 2 to 5 times the diameter of the three-way reaction chamber.

6. The shearing machine for water treatment according to claim 1, wherein At least one overflow port is arranged on the upper side of the cylinder body.

7. A shearing machine for water treatment according to claim 1, characterized in that, The dispersant dosing device includes a chemical dosing pump and a connecting pipeline, and the connecting pipeline is adapted to the special liquid injection valve to achieve sealed connection.

8. The shearing machine for water treatment according to claim 1, characterized in that, A special liquid injection valve is arranged on one side of the three-way reaction chamber close to the feed inlet.

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