A double-push double-out type pusher centrifuge's discharging structure

Abstract

This utility model discloses a feeding structure for a double-push, double-outlet type centrifuge, relating to the field of centrifuge technology. It has the advantages of allowing for detachable connection between the drum wall and the drum bottom wall, reducing deformation of the feeding holes on the drum. The key technical points are: an annular mounting groove is provided on the side of the drum bottom wall facing the drum wall; one side of the mounting groove extends outward from the outside of the drum bottom wall; one end of the drum wall is inserted into the mounting groove; a fixing member is provided on the drum bottom wall to fix the drum wall in the mounting groove; several feeding holes are evenly distributed circumferentially on the outer wall near the drum bottom wall; several water-permeable holes are provided on the drum wall; and a screen cylinder is provided on the inner wall of the drum wall.

Description

Technical Field

[0001] This utility model relates to the field of pusher centrifuge technology, specifically to a feeding structure for a double-push double-outlet pusher centrifuge. Background Technology

[0002] A centrifuge is a machine that uses centrifugal force to separate the components of a mixture of liquids and solid particles or liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions; or to separate two immiscible liquids with different densities in emulsions.

[0003] Chinese Patent Application No. 202121781704.9 discloses a piston bidirectional pusher centrifuge, including a piston rotating rod that performs horizontal linear motion and rotational motion. An inner sleeve is provided between the piston rotating rod and a bearing seat. The bearing seat is located inside an outer shell. A rotating drum is provided on the side of the bearing seat. A screen is provided inside the rotating drum. A pusher is provided inside the screen. A through hole is provided on the pusher near the screen. The outer wall of the pusher is in contact with the inner surface of the screen. The pusher performs repeated linear motion along the axial direction inside the screen. The pusher is connected to the side of the piston rotating rod through a connector. A feeding hopper is provided on the side of the pusher away from the piston rotating rod. A discharge port is provided on the side of the screen and on the rotating drum.

[0004] A typical drum assembly consists of a drum bottom wall and a drum cylinder wall that connect to the bearing housing. The drum bottom wall is machined directly from a forging, and the drum cylinder wall is machined and then welded onto the drum bottom wall. However, in the existing drum assembly, the discharge port is located on the drum cylinder wall. Therefore, the discharge port needs to be machined on the drum cylinder wall before being welded onto the drum bottom wall. Since welding can cause deformation of the discharge port, the discharge port used for material feeding has a deformation quality problem.

[0005] Therefore, the applicant has developed a new technical solution in the actual production process to solve the above-mentioned technical problems. Utility Model Content

[0006] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a feeding structure for a double-push, double-outlet type centrifuge, which has the advantages of allowing the drum wall and the bottom wall of the drum to be detachably connected, reducing the deformation of the feeding holes on the drum.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model provides a feeding structure for a double-push double-outlet type centrifuge, including an annular mounting groove on the bottom wall of the drum facing the drum wall. One side of the mounting groove extends out of the outside of the bottom wall of the drum. One end of the drum wall is embedded in the mounting groove. The bottom wall of the drum is provided with a fixing member to fix the drum wall in the mounting groove.

[0009] The drum wall has several feeding holes evenly spaced around its outer wall near the bottom of the drum.

[0010] The drum wall has several water-permeable holes, and the inner wall of the drum wall is equipped with a screen cylinder.

[0011] By adopting the above technical solution, after the drum wall is installed in the mounting groove, the drum wall is installed on the bottom wall of the drum by fixing components. At this time, the outer wall of the drum wall and the outer wall of the bottom wall of the drum are flush. When the centrifuge is running, after the material is dehydrated on the screen cylinder, it moves to both sides of the drum wall. Then it is discharged from the discharge hole and from the screen cylinder away from the bottom wall of the drum. The screen cylinder wall is installed by fixing components, so that the drum wall and the bottom wall of the drum can be detachably connected, reducing the deformation of the discharge hole on the drum when welding is used.

[0012] Preferably, the fixing member includes a locking screw threaded to the bottom wall of the drum at the end opposite to the drum wall, one end of the locking screw passing through the bottom wall of the drum and threadedly connected to the drum wall.

[0013] Preferably, the inner wall of the drum is provided with an embedding groove for embedding the screen cylinder. One side of the embedding groove extends out of the drum wall away from the bottom wall of the drum. When the screen cylinder is placed in the embedding groove, the inner wall of the screen cylinder is higher than the inner wall of the drum wall. The drum wall is provided with a pressure ring on the side of the screen cylinder away from the bottom wall of the drum to press one side of the screen cylinder against the groove wall of the embedding groove. The pressure ring is connected to the drum wall by fastening screws.

[0014] Preferably, the bottom wall of the drum and the end face of the pressure ring are provided with recesses for the locking screw and fastening screw to be inserted.

[0015] Preferably, each of the feeding holes is an elongated hole, and its length direction is distributed along the length direction of the drum wall.

[0016] Preferably, the inner wall of the drum is provided with elongated guide holes around each feeding hole. The guide holes are connected to the feeding holes, and the walls of the guide holes are gradually inclined from the opening of the guide holes towards the feeding holes.

[0017] Preferably, two adjacent flow guide holes are in contact with each other.

[0018] Preferably, one side of each of the guide holes extends to one end near the drum wall and is embedded in the mounting groove.

[0019] The beneficial effects of this utility model are as follows: After the drum wall is installed in the mounting groove, the drum wall is installed on the bottom wall of the drum by means of fasteners. At this time, the outer wall of the drum wall and the outer wall of the bottom wall of the drum are flush. When the pusher centrifuge is running, the material moves to both sides of the drum wall after being dehydrated on the screen cylinder. Then, the material is discharged from the discharge hole and from the screen cylinder away from the bottom wall of the drum. The screen cylinder wall is installed by means of fasteners, so that the drum wall and the bottom wall of the drum can be detachably connected, reducing the deformation of the discharge hole on the drum when welding is used. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0022] Figure 2 This is a schematic diagram illustrating the structure of the guide hole in this embodiment;

[0023] Figure 3 This is a schematic diagram illustrating the structure of the locking screw in this embodiment.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the diagram: 1. Drum bottom wall; 11. Drum cylinder wall; 12. Mounting groove; 13. Feeding hole; 14. Water permeable hole; 141. Screen cylinder; 142. Embedded groove; 143. Pressure ring; 144. Fastening screw; 15. Locking screw; 16. Guide hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] A feeding structure for a double-push, double-discharge centrifuge, such as... Figure 1 and Figure 2It includes an annular mounting groove 12 provided on the side of the bottom wall 1 of the drum facing the drum cylinder wall 11. One side of the groove wall of the mounting groove 12 extends out of the outside of the bottom wall 1 of the drum. The mounting groove 12 is for one end of the drum cylinder wall 11 to be inserted. The bottom wall 1 of the drum is provided with a fastener to fix the drum cylinder wall 11 in the mounting groove 12.

[0028] like Figure 1 and Figure 2 The drum wall 11 has several feeding holes 13 evenly distributed around its outer wall near the bottom wall 1 of the drum.

[0029] like Figure 1 and Figure 2 The drum wall 11 has several water-permeable holes 14, and the inner wall of the drum wall 11 is provided with a screen cylinder 141.

[0030] like Figure 1 and Figure 2 After the drum wall 11 is installed in the mounting groove 12, it is then mounted on the drum bottom wall 1 using fasteners. At this point, the outer wall of the drum wall 11 and the outer wall of the drum bottom wall 1 are flush. When the centrifuge is running, the material is dehydrated on the screen cylinder 141 and moves to both sides of the drum wall 11. Then, it is discharged from the discharge hole 13 and from the screen cylinder 141 away from the drum bottom wall 1. The screen cylinder 141 is mounted using fasteners, making the drum wall 11 and the drum bottom wall 1 detachably connected, reducing deformation of the discharge hole 13 on the drum when welding is used. The centrifuge housing is also equipped with a discharge pipe corresponding to the discharge hole 13.

[0031] like Figure 1 and Figure 3 The fastener includes a locking screw 15 threaded to the end of the drum bottom wall 1 facing away from the drum cylinder wall 11. One end of the locking screw 15 passes through the drum bottom wall 1 and is threadedly connected to the drum cylinder wall 11. After one end of the drum cylinder wall 11 is installed in the mounting groove 12, the locking screw 15 is screwed in from the end of the drum bottom wall 1 facing away from the drum cylinder wall 11 until one end of the locking screw 15 is threadedly connected to the drum cylinder wall 11. At this time, there are several locking screws 15 distributed around the circumference of the drum cylinder wall 11. On the one hand, this facilitates the installation of the drum cylinder wall 11 on the drum bottom wall 1. On the other hand, the arrangement of several locking screws 15 strengthens the connection between the drum cylinder wall 11 and the drum bottom wall 1.

[0032] like Figure 1 and Figure 2An embedding groove 142 is provided on the inner wall of the drum 11 for embedding the screen cylinder 141. The embedding groove 142 is located at one end of each feeding hole 13. One side of the groove wall of the embedding groove 142 extends out of the drum 11 away from the bottom wall 1. When the screen cylinder 141 is placed into the embedding groove 142, the inner wall of the screen cylinder 141 is higher than the inner wall of the drum 11. A pressure ring 143 is provided on the side of the drum 11 away from the bottom wall 1 to press one side of the screen cylinder 141 against the groove wall of the embedding groove 142. The pressure ring 143 is connected to the drum 11 by a fastening screw 144. At this time, one end of the fastening screw 144 first passes through the pressure ring 143 and then is threaded into the drum 11, thereby fixing the pressure ring 143 to the drum 11.

[0033] like Figure 3 Both the bottom wall 1 of the drum and the end face of the pressure ring 143 are provided with recesses for the locking screw 15 and the fastening screw 144 to be inserted. This reduces the number of nuts of the locking screw 15 and the fastening screw 144 located outside the bottom wall 1 of the drum and the pressure ring 143.

[0034] Each feeding hole 13 is an elongated hole, and its length is distributed along the length of the drum wall 11. Increasing the size of the feeding holes 13 facilitates the feeding of materials inside the drum wall 11.

[0035] like Figure 1 and Figure 2 The inner wall of the drum 11 has elongated guide holes 16 around each feeding hole 13. The guide holes 16 are connected to the feeding holes 13, and the walls of the guide holes 16 gradually slope downward from the opening of the guide hole 16 towards the feeding hole 13. Two adjacent guide holes 16 are in contact with each other.

[0036] like Figure 1 and Figure 2 At this time, the setting of the guide hole 16 is conducive to the material on the inner wall of the drum wall 11 flowing into the discharge hole 13. Since the two adjacent guide holes 16 are in contact with each other, the drum wall 11 where the guide hole 16 is set is covered by the guide hole 16, which makes it easy for the material to flow out from the drum wall 11.

[0037] like Figure 3 Each guide hole 16 extends to one end of the drum wall 11 and is embedded in the mounting groove 12. The purpose is to reduce the accumulation of material in the drum wall 11. Since each guide hole 16 extends to one end of the drum wall 11, after one end of the drum wall 11 is embedded in the mounting groove 12, each guide hole 16 also moves closer to the bottom wall 1 of the drum. After the drum wall 11 is installed on the bottom wall 1 of the drum, each guide hole 16 is close to the bottom wall 1 of the drum. Therefore, the installation method of this application facilitates the discharge of material.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A feeding structure for a double-push, double-discharge centrifuge, characterized in that, It includes an annular mounting groove (12) provided on the side of the bottom wall (1) of the drum facing the drum cylinder wall (11), one side of the mounting groove (12) extends out of the outside of the bottom wall (1) of the drum, the mounting groove (12) is for one end of the drum cylinder wall (11) to be inserted, and the bottom wall (1) of the drum is provided with a fixing member to fix the drum cylinder wall (11) in the mounting groove (12); The drum wall (11) has several feeding holes (13) evenly distributed around the outer wall near the bottom wall (1). The drum wall (11) is provided with several water-permeable holes (14), and the inner wall of the drum wall (11) is provided with a screen cylinder (141).

2. The feeding structure of a double-push double-discharge centrifuge as described in claim 1, characterized in that, The fastener includes a locking screw (15) threaded to one end of the bottom wall (1) of the drum away from the drum wall (11), with one end of the locking screw (15) passing through the bottom wall (1) of the drum and threaded to the drum wall (11).

3. The feeding structure of a double-push double-discharge centrifuge as described in claim 2, characterized in that, The inner wall of the drum (11) is provided with an embedding groove (142) for embedding the screen cylinder (141). One side of the groove wall of the embedding groove (142) extends out of the drum wall (11) away from the bottom wall (1) of the drum. When the screen cylinder (141) is placed in the embedding groove (142), the inner wall of the screen cylinder (141) is higher than the inner wall of the drum wall (11). The drum wall (11) is provided with a pressure ring (143) on the side of the screen cylinder (141) away from the bottom wall (1) of the drum to press one side of the screen cylinder (141) against the groove wall of the embedding groove (142). The pressure ring (143) is connected to the drum wall (11) by fastening screws (144).

4. The feeding structure of a double-push double-discharge centrifuge as described in claim 3, characterized in that, The bottom wall (1) of the drum and the end face of the pressure ring (143) are provided with recesses for the locking screw (15) and fastening screw (144) to be inserted.

5. The feeding structure of a double-push double-discharge centrifuge as described in claim 1, characterized in that, Each of the feeding holes (13) is a long strip-shaped hole, and its length direction is distributed along the length direction of the drum wall (11).

6. The feeding structure of a double-push double-discharge centrifuge as described in claim 5, characterized in that, The inner wall of the drum (11) is provided with elongated guide holes (16) around each feeding hole (13). The guide holes (16) are connected to the feeding holes (13), and the walls of the guide holes (16) gradually slope downward from the opening of the guide holes (16) towards the feeding holes (13).

7. The feeding structure of a double-push double-discharge centrifuge as described in claim 6, characterized in that, The two adjacent guide holes (16) are in contact with each other.

8. The feeding structure of a double-push double-discharge centrifuge as described in claim 7, characterized in that, Each of the aforementioned guide holes (16) extends to one end near the drum wall (11) and is embedded in the mounting groove (12).

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