A horizontal screw centrifuge feed pipe mixer

Abstract

The utility model discloses a feed pipe mixer for a horizontal screw centrifuge, including a feed pipe, in which a detachable material guiding and unblocking mechanism is arranged; the material guiding and unblocking mechanism includes a connecting flange, a feed port is provided at the connecting flange, a group of evenly spaced circular rings are provided at the side end of the connecting flange, spiral blades are fixed between the feed port and the first end circular ring, and between two adjacent circular rings, and the feed port; each circular ring is plugged into the inner wall of the feed cavity, the connecting flange and the feed pipe flange are fixed together by bolts and nuts, and a discharge port is provided at the bottom end of the feed pipe. The structure design of the utility model is ingenious and reasonable, and can cut off and smoothly transport materials with a large solid content or fibers. When the feed pipe is blocked, the material guiding and unblocking mechanism can be quickly and conveniently drawn out from the feed pipe, so as to take away and unblock the blocked materials, and the unblocking efficiency is high, which is worthy of popularization and application.

Description

Technical Field

[0001] The utility model relates to a feeding device, in particular to a feeding device for a horizontal screw centrifuge, in particular to a feeding pipe mixer for a horizontal screw centrifuge. Background Art

[0002] Horizontal screw centrifuge is a centrifuge widely used in chemical, light industry, pharmaceutical, food, environmental protection and other industries. Its main components, the drum and the spiral body, rotate at high speed in the same direction with a certain differential speed. The material is continuously introduced into the inner cylinder of the feeding spiral from the feed pipe, and enters the drum after acceleration. Under the strong centrifugal force, the heavier solid phase is deposited on the drum wall to form a sediment layer. The feeding spiral continuously pushes the deposited solid phase (i.e. sludge, etc.) to the cone end of the drum and is discharged from the machine through the slag phase outlet. The lighter liquid phase forms an inner liquid ring, which continuously overflows from the drum from the liquid outlet at the large end of the drum and is discharged from the machine through the liquid phase outlet. Different materials are processed in different occasions. For some materials with low viscosity such as sludge, the feeding operation can be easily completed, but for materials with high solid content or fibers, it is easy to cause the feed pipe to be blocked, and the feeding cannot be completed. In addition, the feed pipe is not easy to remove from the centrifuge, resulting in the centrifuge not being able to operate normally.

[0003] Chinese utility model patent CN 219836655 U discloses a large cone angle variable pitch protein horizontal screw centrifuge, the centrifuge includes a base, the upper end of the base is symmetrically fixedly connected to two lower clamping seats through multiple support columns, the upper end of the lower clamping seat is fixedly connected to the upper clamping seat, the lower clamping seat and the upper clamping seat are jacketed with the same drum, a spiral blade is installed in the drum, the spiral blade is equipped with a spiral core tube, a differential is installed at one end of the drum, a feed port is installed at the other end of the drum, a clear liquid outlet is installed at the position corresponding to the feed port, one end of the drum is respectively connected to a large end cover shaft through a large end bearing seat, and the other end of the drum is connected to a small end cover shaft through a small end bearing seat, and a solid phase outlet is also opened at the lower side of one end of the drum. The horizontal screw centrifuge is easy to clog the feed pipe for materials with large solid content or fibers, and maintenance is troublesome and high in maintenance cost. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and to provide a feed pipe mixer for a horizontal screw centrifuge, so that when the feed pipe is blocked by materials, it can be quickly removed and unblocked, thereby solving the problem that some types of materials are prone to block the feed pipe.

[0005] The utility model adopts the technical solution to solve its technical problems: the feed pipe mixer of the horizontal screw centrifuge includes a feed pipe, and a detachable material guiding and unblocking mechanism is arranged in the feed pipe; the material guiding and unblocking mechanism includes a connecting flange, a feed port is opened at the connecting flange, and a group of evenly spaced circular rings are arranged at the side end of the connecting flange, and spiral blades are fixed between the feed port and the first end circular ring and between two adjacent circular rings, and the feed port; each circular ring is inserted into the inner wall of the cavity of the feed pipe, and the connecting flange and the feed pipe flange are fixed together by bolts and nuts, and a discharge port is opened at the bottom end of the feed pipe. The function of the feed pipe here is to transport the material; the function of the material guiding and unblocking mechanism here is not only to guide the material to be transported to avoid being blocked in the feed pipe, but also to be quickly disassembled to unblock the material blocked in the feed pipe. Compared with the traditional method of only using the feed pipe to transport materials, this arrangement can more conveniently transport materials with large solid content or fibers and unblock the blocked feed pipe.

[0006] Further improvement, the outlet end of the spiral blade on one side and the inlet end of the spiral blade on the other side are arranged in a "cross" shape. The purpose of the "cross" arrangement between the outlet end of the spiral blade on one side and the inlet end of the spiral blade on the other side is to be able to chop materials with a large solid content or fibers, thereby preventing the materials with a large solid content or fibers from clogging the feed pipe and clogging the outlet of the feed pipe, so that this arrangement is more conducive to the smooth transportation of materials with a large solid content or fibers.

[0007] Further improvement, the end faces of the outlet and the inlet are set to sharp cut forms. The purpose of setting the end faces of the outlet and the inlet to sharp cut forms is to cut materials with large solid content or fibers to avoid clogging in the feed pipe and being unable to be discharged.

[0008] Further improvement, the outer contour of the ring is in an arc shape, and the outer contour of the ring is in line contact with the inner wall of the cavity of the feed pipe. Here, the outer contour of the ring is in an arc shape, and the outer contour of the ring is in line contact with the inner wall of the cavity of the feed pipe. The function is to reduce the contact area of ​​the ring with the inner wall of the feed pipe, so that the material guide dredging mechanism can be more easily and anti-stuck and drawn out from the feed pipe, thereby dredging the feed pipe.

[0009] Further improvement, the outer contour of the ring is provided with a self-lubricating layer. The function of the self-lubricating layer here is to reduce the friction between the ring and the inner wall of the cavity of the feed pipe, so that the material guide dredging mechanism can be pulled out of the feed pipe more easily, thereby facilitating the rapid cleaning of the material blocked in the feed pipe; the self-lubricating layer here is made of tin bronze material.

[0010] The beneficial effects of the utility model are:

[0011] 1). Able to cut and smoothly convey materials with high solid content or fibers;

[0012] 2). When the feed pipe is blocked, the material guide dredging mechanism can be quickly and conveniently pulled out from the feed pipe, thereby taking away and clearing the blocked material, with high dredging efficiency;

[0013] 3). It can adapt to the transportation of different types of materials, has strong versatility, and can be matched with different types of centrifuges without adding additional area. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is an exploded view of the utility model;

[0016] Figure 3 It is a three-dimensional diagram of the connecting flange area in the utility model;

[0017] Figure 4 It is a three-dimensional diagram of the material guiding and dredging mechanism in the utility model;

[0018] Figure 5 It is a partial stereogram of the material guiding and dredging mechanism area in the utility model;

[0019] Figure 6 for Figure 1 A local enlarged view of area A;

[0020] Figure 7 for Figure 5 BB cross-section diagram;

[0021] Figure 8 for Figure 5 CC profile of ;

[0022] Fig. 9 for Figure 5 DD profile diagram;

[0023] Fig.10 for Figure 5 EE profile diagram;

[0024] Fig.11 This is a working principle diagram of the utility model.

[0025] Explanation of the reference numerals: feed pipe 1, discharge port 1-1, material guiding and clearing mechanism 2, connecting flange 2-1, feed port 2-1a, circular ring 2-2, arc shape 2-2a, self-lubricating layer 2-2b, spiral blade 2-3, outlet end 2-3a, inlet end 2-3b, feed pipe 3. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] Referring to the accompanying drawings: this horizontal screw centrifuge feed pipe mixer includes a feed pipe 1, and a detachable material guiding and clearing mechanism 2 is arranged in the feed pipe 1; the material guiding and clearing mechanism 2 includes a connecting flange 2-1, and a feed port 2-1a is opened at the connecting flange 2-1, and a group of circular rings 2-2 are evenly spaced at intervals are arranged at the side end of the connecting flange 2-1, and spiral blades 2-3 are fixed between the feed port 2-1a and the head end circular ring 2-2 and between two adjacent circular rings 2-2, and the feed port 2-1a; each circular ring 2-2 is inserted into the inner wall of the cavity of the feed pipe 1, and the connecting flange 2-1 is fixed to the flange of the feed pipe 1 by bolts and nuts, and a discharge port 1-1 is opened at the bottom end of the feed pipe 1.

[0028] The outlet end 2-3a of the spiral blade 2-3 on one side and the inlet end 2-3b of the spiral blade 2-3 on the other side are arranged in a "cross" shape.

[0029] The end faces of the outlet end 2-3a and the inlet end 2-3b are both configured to be sharp cutouts.

[0030] The outer contour of the circular ring 2 - 2 is in an arc shape 2 - 2 a , and the outer contour of the circular ring 2 - 2 is in linear contact with the inner wall of the cavity of the feed pipe 1 .

[0031] The outer contour of the ring 2-2 is provided with a self-lubricating layer 2-2b.

[0032] The working principle of the utility model is: when the solid-liquid separation is carried out on the material with a large solid content or with fibers, it only needs to be conveyed to the inlet of the feed pipe 1 under pressure through the feed pipe 3, and then the cutting and cutting spirals of the spiral blades 2-3 are conveyed to the discharge port 1-1 of the feed pipe 1 for discharge (such as Fig.11 As shown), when the material does contain too much solid or fiber and causes blockage in the feed pipe 1, it is only necessary to remove the bolts and nuts to move the feed pipe 3 away, and then pull out and disassemble the material guiding and unblocking mechanism 2 from the feed pipe 1. In the process of pulling out the material guiding and unblocking mechanism 2, the blocked material can be taken out together, and then the material guiding and unblocking mechanism 2 is cleaned and installed and tightened back, and it can work normally. It is worthy of popularization and application.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A horizontal screw centrifuge feed pipe mixer, comprising a feed pipe (1), characterized in that: The feed pipe (1) is provided with a detachable material guiding and dredging mechanism (2); The material guiding and dredging mechanism (2) comprises a connecting flange (2-1), a material inlet (2-1a) is formed at the connecting flange (2-1), a group of circular rings (2-2) are evenly spaced at intervals are provided at the side end of the connecting flange (2-1), and spiral blades (2-3) are fixed between the material inlet (2-1a) and the circular rings (2-2) at the head end, and between two adjacent circular rings (2-2); Each of the circular rings (2-2) is inserted into the inner wall of the cavity of the feed pipe (1), the connecting flange (2-1) and the flange of the feed pipe (1) are fixed together by bolts and nuts, and the bottom end of the feed pipe (1) is provided with a discharge port (1-1).

2. A horizontal screw centrifuge feed pipe mixer according to claim 1, characterized in that: The outlet end (2-3a) of the spiral blade (2-3) on one side and the inlet end (2-3b) of the spiral blade (2-3) on the other side are arranged in a "cross" shape.

3. A horizontal screw centrifuge feed pipe mixer according to claim 2, characterized in that: The end faces of the outlet end (2-3a) and the inlet end (2-3b) are both configured to be sharp cutouts.

4. A horizontal screw centrifuge feed pipe mixer according to claim 1, characterized in that: The outer contour of the circular ring (2-2) is in an arc shape (2-2a), and the outer contour of the circular ring (2-2) is in linear contact with the inner wall of the cavity of the feed pipe (1).

5. A horizontal screw centrifuge feed pipe mixer according to claim 4, characterized in that: The outer contour of the circular ring (2-2) is provided with a self-lubricating layer (2-2b).

Images