A device for a multi-point mixed feed joint

Abstract

The utility model discloses a kind of device of multi-point mixed feed joint, including feed pipe and discharge pipe, arc elbow pipe is fixed between feed pipe and discharge pipe and is connected, arc elbow pipe is transversely inserted with flocculant feed pipe, flocculant feed pipe is coaxially arranged with discharge pipe, a group of circular holes that are evenly arranged with interval are opened on the insertion end circumferential direction of flocculant feed pipe, first flange is installed on feed pipe, second flange is installed on discharge pipe, third flange is installed on flocculant feed pipe.The utility model is ingenious, reasonable in structure design, can increase the contact area of flocculant and sludge, make flocculant and sludge fast and evenly mixed together, and will not block, simple structure, operation and maintenance are convenient, will not cause the influence to the stability and reliability of centrifuge, is worth promoting application.

Description

Technical Field

[0001] This utility model relates to a device, particularly a centrifuge connector, and especially a device for a multi-point mixing feed connector. Background Technology

[0002] In traditional sedimentation centrifuges, the sludge inlet is located at the top of the pipe, and the bend is at a 90° right angle. In addition, the sludge inlet pipe does not have circumferentially distributed holes, which leads to insufficient and uneven mixing of flocculant and sludge during centrifuge feeding. This results in poor solid-liquid separation of sludge and serious material blockage due to incomplete solid-liquid separation.

[0003] Chinese utility model patent CN 208642987 U discloses a feed pipe for a centrifuge. This feed pipe includes a pipe body comprising an inner pipe body and an outer pipe body. The inner pipe body is connected to the centrifuge end cover via a flange seat, and the outer pipe body is connected to the centrifuge end cover via a sight glass assembly. The sight glass assembly includes an upper flange seat, a lower flange seat, and a sight glass tube, which is connected to the upper and lower flange seats via double-ended bolts. This feed pipe fails to ensure thorough mixing of flocculant and sludge, resulting in incomplete solid-liquid separation of the sludge and potential material blockage. Utility Model Content

[0004] This invention aims to overcome the shortcomings of the prior art by providing a multi-point mixing feeder that enables sludge and flocculant to mix thoroughly without clogging, thus meeting the requirements for thorough mixing of flocculant and sludge and good solid-liquid separation in centrifuges.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This multi-point mixing feed joint device includes a feed pipe and a discharge pipe. An arc-shaped bend is fixedly connected between the feed pipe and the discharge pipe. A flocculant feed pipe is horizontally inserted into the arc-shaped bend. The flocculant feed pipe and the discharge pipe are coaxially arranged. A set of evenly spaced circular holes are opened circumferentially at the insertion end of the flocculant feed pipe. A first flange is installed on the feed pipe, a second flange is installed on the discharge pipe, and a third flange is installed on the flocculant feed pipe. The arc-shaped bend serves to change the fluid direction, generating strong eddies and shear forces. The evenly spaced circular holes on the circumference of the flocculant feed pipe increase the contact area between the flocculant and the sludge, allowing the flocculant liquid and sludge to mix quickly and evenly without clogging. The first, second, and third flanges facilitate easier and faster installation.

[0006] Further improvements were made to the design where the line connecting the inlet and outlet centers of the arc-shaped bend forms a 45° angle with both the inlet and outlet centerlines. This 45° angle between the connecting lines and the inlet / outlet centerlines generates stronger eddies and shear forces, preventing sludge blockage and ensuring more thorough mixing of the flocculant and sludge.

[0007] Further improvements were made to the discharge pipe, which includes a straight pipe and a sludge discharge cone pipe with a larger inner diameter and a smaller outer diameter. The second flange is fixed at the smaller end of the sludge discharge cone pipe. The function of the sludge discharge cone pipe with a larger inner diameter and a smaller outer diameter is to allow the sludge to pass through the second flange more slowly by compression, thereby giving the sludge more time to mix thoroughly with the flocculant and improving the solid-liquid separation capacity of the sludge.

[0008] Further improvements include a flocculant discharge cone with a wider inner diameter and a narrower outer diameter fixed to the end of the flocculant feed pipe. The purpose of this discharge cone is to apply pressure as the flocculant exits, allowing it to be rapidly ejected from the orifices and mixed with the sludge. The pressure from the wider inner diameter and narrower outer diameter ensures rapid spraying of the flocculant through the orifices, resulting in better and more thorough mixing of the sludge and flocculant.

[0009] The beneficial effects of this utility model are:

[0010] 1) By using a curved pipe, the direction of the fluid can be changed, generating strong eddies and shear forces;

[0011] 2) The evenly spaced circular holes around the circumference of the flocculant feed pipe can increase the contact area between the flocculant and the sludge, allowing the liquid and sludge to mix quickly and evenly without clogging.

[0012] 3) The sludge discharge cone, which is wider at the inside and narrower at the outside, allows the sludge to pass through the second flange more slowly by being squeezed, thus giving the sludge more time to mix thoroughly with the flocculant and improving the solid-liquid separation capacity of the sludge;

[0013] 4) The flocculant discharge cone can increase the flow direction of the flocculant and make the flocculant sprayed from each hole have a greater spray velocity, thus enabling the flocculant to mix more thoroughly with the sludge. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a top view of the circular hole area in this utility model.

[0017] Explanation of reference numerals in the attached drawings: feed pipe 1, first flange 1-1, discharge pipe 2, straight pipe 2a, sludge discharge cone pipe 2b, second flange 2-1, arc bend 3, flocculant feed pipe 4, round hole 4-1, third flange 4-2, flocculant discharge cone pipe 4-3, connecting line a. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Referring to the attached diagram; this multi-point mixing feed joint device includes a feed pipe 1 and a discharge pipe 2. An arc-shaped bend 3 is fixedly connected between the feed pipe 1 and the discharge pipe 2. A flocculant feed pipe 4 is inserted laterally into the arc-shaped bend 3. The flocculant feed pipe 4 and the discharge pipe 2 are coaxially arranged. A set of evenly spaced circular holes 4-1 are opened circumferentially at the insertion end of the flocculant feed pipe 4. A first flange 1-1 is installed on the feed pipe 1, a second flange 2-1 is installed on the discharge pipe 2, and a third flange 4-2 is installed on the flocculant feed pipe 4.

[0020] The line a connecting the center point of the feed pipe 3 and the center point of the discharge pipe is formed by the line a. The line a forms a 45° angle with the center line of the feed pipe 1 and the line a forms a 45° angle with the center line of the discharge pipe 2.

[0021] The discharge pipe 2 includes a straight pipe 2a and a sludge discharge cone pipe 2b with a larger inner diameter and a smaller outer diameter. The second flange 2-1 is fixed at the smaller end of the sludge discharge cone pipe 2b.

[0022] The end of the flocculant feed pipe 4 is fixed with a flocculant discharge cone pipe 4-3 that is larger inside and smaller outside.

[0023] The working principle of this utility model is as follows: Sludge enters the arc bend 3 through the feed pipe 1. Because the feed pipe 1 and the arc bend 3 form a 45° angle, the direction of the fluid can be changed, generating strong eddies and shear forces. At the same time, flocculant enters the arc bend 3 and the discharge pipe 2 from the flocculant feed pipe 4. The flocculant sprayed through the circumferentially distributed circular holes 4-1 of the flocculant feed pipe 4 and the flocculant discharge cone 4-3 is fully mixed with the sludge (material), ensuring that the material is mixed with the flocculant without dead corners, preventing material blockage. Furthermore, the structure is simple, operation and maintenance are convenient, and it will not affect the stability and reliability of the centrifuge, thus improving the working efficiency of subsequent centrifuge separation. This invention not only features a cleverly designed structure that aligns with fluid dynamics, generating strong eddies and shear forces by altering the fluid direction, but also incorporates circumferentially distributed circular holes based on the principles of fluid penetration and diffusion. This increases the contact area between the flocculant and sludge, ensuring rapid and uniform fusion and achieving a seamless distribution of the mixture in three-dimensional space. This feature avoids the problems of uneven local concentration or clogging that may occur in traditional mixing processes, improving mixing efficiency and quality, and is worthy of widespread application.

[0024] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A device for a multi-point mixing feed connector, comprising a feed pipe (1) and a discharge pipe (2), characterized in that: A circular arc bend (3) is fixedly connected between the feed pipe (1) and the discharge pipe (2). A flocculant feed pipe (4) is inserted laterally into the circular arc bend (3). The flocculant feed pipe (4) and the discharge pipe (2) are coaxially arranged. A set of evenly spaced circular holes (4-1) are opened on the circumference of the insertion end of the flocculant feed pipe (4). A first flange (1-1) is installed on the feed pipe (1). A second flange (2-1) is installed on the discharge pipe (2). A third flange (4-2) is installed on the flocculant feed pipe (4).

2. The device for a multi-point mixing feed joint according to claim 1, characterized in that: The line (a) connecting the center point of the feed pipe (3) and the center point of the discharge pipe is formed by the line (a) at a 45° angle with the center line of the feed pipe (1) and the line (a) at a 45° angle with the center line of the discharge pipe (2).

3. The device for a multi-point mixing feed connector according to claim 1, characterized in that: The discharge pipe (2) includes a straight pipe (2a) and a sludge discharge cone pipe (2b) that is larger inside and smaller outside. The second flange (2-1) is fixed at the small end of the sludge discharge cone pipe (2b).

4. The apparatus for a multi-point mixing feed joint according to any one of claims 1-3, characterized in that: The end of the flocculant feed pipe (4) is fixed with a flocculant discharge cone pipe (4-3) that is larger inside and smaller outside.

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