Discharge port with residue crushing function

Abstract

This utility model relates to the technical field of filter cake discharge outlets, and in particular to a discharge outlet with a slag crushing function. It includes an installation pipe with openings at both the top and bottom. Inside the installation pipe, a grid corresponding to the opening positions is movably installed. Above the grid, two push blocks are symmetrically arranged. Two electric cylinders are installed outside the installation pipe, with their moving ends penetrating the outside of the installation pipe and extending into its interior. The moving ends of the two electric cylinders are respectively connected to the two push blocks. This design facilitates the crushing of large-sized slag cakes. After crushing, the slag cakes fall through the holes in the grid, preventing blockage of the discharge outlet due to large slag cake size and improving the discharge efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of filter residue discharge outlets, and in particular to a discharge outlet with a slag crushing function. Background Technology

[0002] In the sludge dewatering room, the sludge, after being processed by dewatering equipment (such as belt filter press, plate and frame filter press, centrifuge, etc.), changes from a liquid or fluid state to a solid or semi-solid dense cake. Although the dewatering equipment is designed to produce sludge cakes with relatively uniform thickness and size, in actual operation, due to fluctuations in sludge properties (composition, concentration, viscosity), slight changes in equipment operating parameters (such as filter belt tension, extrusion pressure, dosage), or limitations of the equipment itself (such as filter cloth edge effect), the size of the produced sludge cake (especially length and width) often varies significantly. Some mud cakes may form oversized lumps. These excessively large, irregularly shaped, and potentially sticky / tough lumps, when discharged through the outlet and falling into the transport vehicle (such as a truck or trailer) below, may obstruct the normal descent of subsequent mud cakes due to the outlet size not being adequately designed to account for the maximum possible mud cake size or extreme working conditions. One or more excessively large mud cakes (or several mud cakes stuck together) may block the narrow part of the outlet, forming an "arch bridge" structure, thus reducing the discharge efficiency of mud cakes. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a discharge port with slag crushing function.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a discharge port with a material crushing function, including an installation pipe, with openings at the top and bottom of the installation pipe, a grid corresponding to the opening position is movably installed inside the installation pipe, two push blocks are provided above the grid, the two push blocks are arranged symmetrically, two electric cylinders are provided outside the installation pipe, the movable ends of the two electric cylinders penetrate through the outside of the installation pipe and extend into the inside of the installation pipe, and the movable ends of the two electric cylinders are respectively connected to the two push blocks.

[0005] Preferably, both sides of the two push blocks are provided with cone plates.

[0006] Preferably, a movable frame is fixedly fitted along the circumferential side of the grille, and an installation frame is movably fitted along the circumferential side of the movable frame. The installation frame and the movable frame are elastically connected. The installation frame is fitted inside the installation tube. The top of the movable frame is provided with two sets of symmetrically arranged first arc blocks. Each set contains at least ten first arc blocks. The first arc blocks in each set are equidistantly arranged and are positioned along the direction of movement of the push block.

[0007] Preferably, two second arc plates are installed at the bottom of each of the two push blocks, and the second arc plates are located between two adjacent first arc blocks.

[0008] Preferably, a plurality of mounting rods are installed at the bottom of the movable frame, the bottom ends of the mounting rods extend to the bottom of the mounting frame, and a compression spring and a fixing block are movably fitted on the surface of the mounting rods from top to bottom. One end of the fixing block is installed at the bottom of the mounting frame, and the two ends of the compression spring are respectively installed at the bottom of the mounting frame and the top of the fixing block.

[0009] Preferably, a shielding frame is provided between the plurality of mounting rods, the top of the shielding frame is installed at the bottom of the movable frame, the top of the shielding frame is arranged along the inner side of the movable frame, and the bottom of the shielding frame extends to the bottom of the mounting frame.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This solution uses a grid to filter large mud cakes. Two pushers are installed inside the discharge port, and two electric cylinders are installed outside the discharge port. The two electric cylinders push the two pushers closer to each other or further apart. When the two pushers are closer together, they squeeze the mud cake between them. When the two pushers are further apart, they move towards the inner wall of the discharge pipe, which also squeezes the mud cake between the pushers and the inner wall of the discharge pipe. This facilitates the crushing of large mud cakes. After being crushed, the mud cakes fall out of the holes in the grid, avoiding the situation where the discharge port is blocked due to the size of the large mud cakes, thus improving the mud cake discharge efficiency. Attached Figure Description

[0012] Figure 1 This is a partial cross-sectional view of the present invention;

[0013] Figure 2 This is an enlarged view of point A in this utility model;

[0014] Figure 3 This is a schematic diagram showing the connection between the mounting frame and the grille of this utility model;

[0015] Figure 4This is a distribution diagram of the multiple first arc blocks arranged on the movable frame according to the present invention;

[0016] Figure 5 This is a schematic diagram showing the connection between the push block and the cone plate of this utility model;

[0017] Figure 6 This is a schematic diagram showing the connection between the mounting frame, the movable frame, and the shielding frame of this utility model;

[0018] Figure 7 This is a schematic diagram showing the connection between the compression spring, mounting rod, and fixing block of this utility model.

[0019] In the diagram: 1. Grille; 2. Push block; 3. Mounting tube; 4. Conical plate; 5. Electric cylinder; 6. Mounting frame; 7. First arc block; 8. Second arc plate; 9. Compression spring; 10. Covering frame; 11. Movable frame; 12. Fixing block; 13. Mounting rod. Detailed Implementation

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0021] like Figure 1-7 The diagram shows a discharge port with slag crushing function, comprising an installation pipe 3. Openings are provided at the top and bottom of the installation pipe 3. A grid 1, corresponding to the opening positions, is movably installed inside the installation pipe 3. Two push blocks 2 are symmetrically arranged above the grid 1. Two electric cylinders 5 are installed outside the installation pipe 3. The movable ends of both electric cylinders 5 penetrate the outside of the installation pipe 3 and extend into the inside of the installation pipe 3. The movable ends of the two electric cylinders 5 are respectively connected to the two push blocks 2. The movement of the two electric cylinders 5 is synchronously controlled by a PLC controller, facilitating the operation of the two electric cylinders 5. The movable ends of the two electric cylinders 5 extend or shorten synchronously. When the movable ends of the two electric cylinders 5 extend synchronously, the two movable ends of the two electric cylinders 5 push the two push blocks 2 to move closer to each other, and the two push blocks 2 squeeze the mud cake between the two push blocks 2. When the movable ends of the two electric cylinders 5 contract synchronously, the two push blocks 2 move away from each other. During the process of the two push blocks 2 moving towards the inner wall of the discharge pipe 3, the push blocks 2 push the mud cake to contact the inner wall of the discharge pipe 3. Due to the limitation of the inner wall, the mud cake between the push block 2 and the inner wall of the discharge pipe 3 will also be squeezed, which facilitates the crushing of large mud cakes and avoids the occurrence of blockage.

[0022] Both sides of the two push blocks 2 are provided with cone plates 4. The cone plate 4 is a plate with multiple cones. The tips of the cones contact the mud cake, which facilitates the crushing of the mud cake.

[0023] A movable frame 11 is fixedly fitted along the circumferential side of the grille 1. A mounting frame 6 is movably fitted along the circumferential side of the movable frame 11. The mounting frame 6 and the movable frame 11 are elastically connected. The mounting frame 6 is fitted inside the mounting tube 3. The top of the movable frame 11 has two sets of symmetrically arranged first arc blocks 7. Each set has at least ten first arc blocks 7, which are equidistantly arranged. The first arc blocks 7 in each set are set along the movement direction of the push block 2. Two second arc plates 8 are installed at the bottom of each of the two push blocks 2. The second arc plates 8 are located between two adjacent first arc blocks 7. During the movement of the two push blocks 2, the two push blocks 2 drive the four second arc plates 8 to move synchronously. The arc surfaces of the four second arc plates 8 slide along the arc surfaces of the four first arc blocks 7 respectively. The sliding process is as follows: the initial state is that the bottom of the arc of the second arc plate 8 corresponds to the bottom of the first arc block 7. When plate 8 is moved under force, its arc surface moves from the bottom to the top along the arc surface of the first arc block 7. Since the vertical position of the second arc plate 8 remains unchanged, the first arc block 7 gradually moves downward after being subjected to force, thereby driving the movable frame 11 to move downward. After the bottom end of the second arc plate 8 separates from the top end of the first arc block 7, the first arc block 7 is not affected by the pressure of the second arc plate 8. Through the elastic potential energy of the compression spring 9, the first arc block 7 pushes against the arc surface of the second arc plate 8. After the bottom end of the second arc plate 8 and the bottom end of the first arc block 7 are aligned, the upward movement of the movable frame 11 is completed. The second arc plate 8 moves once on multiple first arc blocks 7, which facilitates the continuous up-and-down movement of the movable frame 11, which facilitates the continuous vibration of the mud cake on the grid 1, and facilitates the falling of mud cakes that can pass through the grid holes. Mud cakes larger than the grid holes continue to stay on the top of the grid 1, which is convenient for being crushed by the two push blocks 2.

[0024] Multiple mounting rods 13 are installed at the bottom of the movable frame 11. The bottom ends of the mounting rods 13 extend to the bottom of the mounting frame 6. Compression springs 9 and fixing blocks 12 are movably fitted onto the surface of the mounting rods 13 from top to bottom. One end of the fixing block 12 is installed at the bottom of the mounting frame 6, and the two ends of the compression springs 9 are installed at the bottom of the mounting frame 6 and the top of the fixing block 12, respectively. When the movable frame 11 moves downward under force, the movable frame 11 pushes the multiple compression springs 9 to retract in length and the multiple mounting rods 13 to move downward synchronously. At this time, the compression springs 9 are in an energy storage state. The movable frame 11 is not affected by external forces. Multiple compression springs 9 release energy to push the movable frame 11 in the opposite direction. After being subjected to force, the movable frame 11 moves upward. During the up-and-down movement, the movable frame 11 vibrates. When the movable frame 11 vibrates, it can drive the mud cakes piled on the top of the grid 1 to vibrate synchronously, so that the mud cakes move irregularly, which makes it convenient for mud cakes with a size smaller than the grid aperture to fall off. During the up-and-down movement of the grid 1 and the vibration of the mud cakes, some mud cakes hit the bottom of the push block 2. This method breaks up the mud cakes located between the bottom of the push block 2 and the top of the grid 1.

[0025] A shielding frame 10 is provided between multiple mounting rods 13. The top of the shielding frame 10 is installed at the bottom of the movable frame 11. The top of the shielding frame 10 is arranged along the inner side of the movable frame 11. The bottom of the shielding frame 10 extends to the bottom of the mounting frame 6. The shielding frame 10 can prevent small mud cakes or mud cake debris from falling between the bottom of the mounting frame 6 and the top of the fixing block 12, and plays a role in stabilizing and maintaining the up-and-down movement of the movable frame 11.

[0026] In this scheme, when the radial dimension of the bottom opening of the discharge pipe 3 is 200-300mm, the aperture of the grid hole is 35-60mm.

[0027] Working principle: The mud cake is first dropped from the top opening of the discharge pipe 3 onto the grid 1. Some mud cakes smaller than the grid holes fall out, while mud cakes larger than the grid holes accumulate on the top of the grid 1.

[0028] Then, the PLC controller controls the moving ends of the two electric cylinders 5 to reciprocate and extend. When the moving ends of the two electric cylinders 5 extend synchronously, the two moving ends of the two electric cylinders 5 push the two push blocks 2 to move closer to each other, and the two push blocks 2 squeeze the mud cake between the two push blocks 2. When the moving ends of the two electric cylinders 5 retract synchronously, the two push blocks 2 move away from each other. During the process of the two push blocks 2 moving towards the inner wall of the discharge pipe 3, the push blocks 2 push the mud cake to contact the inner wall of the discharge pipe 3. Due to the limitation of the inner wall, the mud cake between the push block 2 and the inner wall of the discharge pipe 3 will also be squeezed, which makes it easier to crush large mud cakes.

[0029] During the movement of push block 2, push block 2 drives four second arc plates 8 to move synchronously. The arc surfaces of the four second arc plates 8 slide along the arc surfaces of the four first arc blocks 7, which facilitates the up-and-down movement of the movable frame 11, thereby vibrating the mud cake. When the two push blocks 2 squeeze large mud cakes, the movable frame 11 vibrates to drop mud cakes smaller than the grid hole size from the grid, which facilitates the mud cakes falling from the bottom opening of the discharge pipe 3, so that the mud cakes can be output stably.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A discharge port with slag crushing function, comprising an installation pipe (3), wherein the top and bottom of the installation pipe (3) are both provided with openings, characterized in that, The mounting tube (3) is provided with a grille (1) corresponding to the opening position inside. Two push blocks (2) are provided above the grille (1). The two push blocks (2) are arranged symmetrically. Two electric cylinders (5) are provided outside the mounting tube (3). The moving ends of the two electric cylinders (5) pass through the outside of the mounting tube (3) and extend into the inside of the mounting tube (3). The moving ends of the two electric cylinders (5) are respectively connected to the two push blocks (2).

2. The discharge port with slag crushing function according to claim 1, characterized in that, Both sides of the two push blocks (2) are provided with cone plates (4).

3. The discharge port with slag crushing function according to claim 1, characterized in that, A movable frame (11) is fixedly fitted along the side circumference of the grille (1), and an installation frame (6) is movably fitted along the side circumference of the movable frame (11). The installation frame (6) and the movable frame (11) are elastically connected. The installation frame (6) is matched and installed inside the installation tube (3). The top of the movable frame (11) is provided with two sets of symmetrically arranged first arc blocks (7). Each set has at least ten first arc blocks (7). The first arc blocks (7) in each set are equidistantly arranged. The first arc blocks (7) in each set are set along the movement direction of the push block (2).

4. A discharge port with slag crushing function according to claim 3, characterized in that, Two second arc plates (8) are installed at the bottom of each of the two push blocks (2), and the second arc plates (8) are located between two adjacent first arc blocks (7).

5. A discharge port with slag crushing function according to claim 3, characterized in that, The bottom of the movable frame (11) is equipped with a plurality of mounting rods (13). The bottom end of the mounting rods (13) extends to the bottom of the mounting frame (6). The surface of the mounting rods (13) is movably fitted with a compression spring (9) and a fixing block (12) from top to bottom. One end of the fixing block (12) is installed at the bottom of the mounting frame (6), and the two ends of the compression spring (9) are respectively installed at the bottom of the mounting frame (6) and the top of the fixing block (12).

6. A discharge port with slag crushing function according to claim 5, characterized in that, A shielding frame (10) is provided between the plurality of mounting rods (13). The top of the shielding frame (10) is mounted on the bottom of the movable frame (11). The top of the shielding frame (10) is arranged along the inner side of the movable frame (11). The bottom of the shielding frame (10) extends to the bottom of the mounting frame (6).

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