Filter cake crushing and outputting device of centrifugal machine

Abstract

The utility model relates to the technical field of centrifugal machine auxiliary equipment, in particular to a filter cake crushing and outputting device of a centrifugal machine, which comprises a crushing box, an air jet pump mounted at the bottom end of the crushing box and used for outputting crushed filter cakes, and a crushing mechanism mounted in the crushing box, a screen for screening filter cakes is fixedly arranged in the middle of the inner wall of the crushing box; according to the utility model, the motor is used for driving the rotary cutter to rotate so as to carry out rotary cutting and slicing on a filter cake, the crushing blade can be driven to rotate so as to crush the filter cake subjected to rotary cutting, and the screen can be used for blocking the filter cake with larger particles, so that the filter cake can pass through the screen after being fully crushed, and the crushing effect on the filter cake is improved; and in addition, the mode that rotary cutting is conducted firstly and then crushing is conducted is adopted, the overall crushing time of the filter cakes can be shortened, and the crushing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifuge auxiliary equipment technical field, concretely is a kind of filter cake crushing output device of centrifuge. BACKGROUND

[0002] Centrifuge is the machine that different materials needing separation are accelerated to separate using centrifugal force.Centrifuge is widely used in chemical industry, petroleum, food, pharmaceutical, mineral processing, coal, water treatment and ship department.Cake or sheet shape filter cake is discharged from vertical scraper, horizontal scraper, centrifuge and cannot directly enter subsequent drying equipment for drying, and the cake or sheet shape filter cake cannot meet the air conveying condition, and the artificial transfer work intensity is large.

[0003] For this, the patent with publication number CN206911583U discloses "a filter cake crushing output device of centrifuge, including box, box upper portion is equipped with feed hopper, feed hopper is connected with the filter cake outlet of centrifuge, two crushing shafts are horizontally arranged in the box, a plurality of crushing blades are arranged on the crushing shafts, power mechanism for driving two crushing shafts to rotate towards each other is arranged on the box, discharge port is arranged below the box, air jet pump is arranged on the discharge port of the box, the suction inlet of air jet pump is connected with the discharge port of the box, the discharge port of air jet pump is connected with discharge pipe, and the pressure inlet of air jet pump is connected with compressed air inlet pipe".

[0004] For the related technology in the above, the inventor considers that in actual use, since the time of filter cake passing through crushing blade is short, there is gap between adjacent crushing blades, so that the crushing of filter cake is not sufficient, and the size of crushed filter cake is different, and even part of cake-shaped filter cake is discharged without crushing, so it needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model provides a filter cake crushing output device of centrifuge in view of the deficiency of prior art, and the specific technical scheme is as follows:

[0006] A filter cake crushing output device of centrifuge, comprising a crushing box, an air jet pump installed at the bottom end of the crushing box and used for conveying the crushed filter cake out, and a crushing mechanism installed in the crushing box,

[0007] A screen is fixedly arranged at the middle part of the inner wall of the crushing box and used for screening filter cake, the crushing mechanism comprises a motor arranged in the crushing box, a rotating rod fixedly arranged at the output end of the motor and coaxial with the crushing box, a rotary cutter fixedly arranged at the top outer wall of the rotating rod and used for rotary cutting filter cake, and a crushing blade installed on the outer wall of the rotating rod and used for crushing the filter cake falling on the top of the screen after rotary cutting, and a dredging mechanism is arranged on the outside of the motor and used for dredging the screen.

[0008] The motor drives the rotary cutter to rotate to spin and slice the filter cake, and drives the crushing blade to rotate to crush the filter cake after being spun, the screen can block the filter cake with large particles, so that the filter cake can pass through the screen only after being fully crushed, and the crushing effect of the filter cake is improved.

[0009] Optionally, the crushing box is internally provided with an inclined connecting plate, the protection box is fixedly connected to the bottom end of the connecting plate, the rotary cutter is abutted at the bottom of the feeding hopper, and the rotating rod is coaxial with the axis of the screen.

[0010] The protection box can cover the motor to protect the motor, and the connecting plate can connect the protection box and the crushing box to support and fix the motor.

[0011] Optionally, the rotating rod is externally provided with a limiting seat located directly below the screen, the dredging mechanism comprises a spring fixedly arranged at the bottom of the limiting seat and a brush fixedly arranged at the top end of the spring, the brush is slidingly connected to the top end of the limiting seat, and the bristles of the brush are inserted into the mesh of the screen.

[0012] The spring can top the brush at the bottom of the screen, and the brush can be driven to rotate by the motor to dredge the screen, so that the screening effect of the screen is ensured.

[0013] Optionally, the bottom of the brush is fixedly provided with a hanging ring, and the bottom of the limiting seat is rotatably provided with a hook for hanging the hanging ring after the brush is lowered.

[0014] The hook can hang the hanging ring to lower and fix the brush, so that the brush is prevented from being abraded by long-time contact with the screen.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] (1) The motor drives the rotary cutter to rotate to spin and slice the filter cake, and drives the crushing blade to rotate to crush the filter cake after being spun, the screen can block the filter cake with large particles, so that the filter cake can pass through the screen only after being fully crushed, and the crushing effect of the filter cake is improved.

[0017] (2) through the spring force, can be brush on the bottom of the screen, with motor drive, can drive the brush rotation to screen to dredge, ensure the screening effect of screen, and use the hook after hanging ring, can be brush down and fixed, avoid the brush long time contact screen and wear and tear speed up, prolong the service life of the brush, the whole only needs a single motor drive, can complete the filter cake rotary cutting, broken and screen dredging multiple process, convenient and practical. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic view of the utility model;

[0019] Figure 2 It is whole structure front view cross section drawing of the utility model;

[0020] Figure 3 It is whole structure of the utility model Figure 2 A structure enlarged view;

[0021] Figure 4 It is the connecting view of the utility model's rotary rod and limit seat plan view.

[0022] In the drawing: 1, broken box;11, feed hopper;12, access door;2, air jet pump;3, screen;4, motor;41, rotary rod;42, rotary cutting knife;43, crushing blade;44, protection box;45, connecting plate;5, brush;51, limit seat;52, spring;53, hanging ring;54, hook. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-4 A filter cake broken output device of a centrifuge, comprising a broken box 1, an air jet pump 2 and a broken mechanism, the broken box 1 is wide at the top and narrow at the bottom, facilitating discharge, the air jet pump 2 is installed at the bottom end of the broken box 1, the air jet pump 2 is fixedly installed in the discharge pipe at the discharge port of the bottom end of the broken box 1, the air jet pump 2 can form negative pressure at the lower part of the broken box 1 through the jet principle, pneumatically conveying the broken filter cake out of the broken box 1 to output and transport the filter cake, wherein the connection between the air jet pump 2 and the broken box 1 is a public technology, which will not be described here.

[0025] Please refer to Figures 1-2The top of the inner wall of the crushing box 1 is fixedly provided with a feeding hopper 11, and a maintenance door 12 is movably arranged on one side of the crushing box 1. The device can be installed at the discharge port of a vertical scraper, a horizontal scraper, a bag pulling centrifuge or the like. The filter cake discharged from the centrifuge can enter the crushing box 1 through the feeding hopper 11. The maintenance door 12 can be installed on the crushing box 1 by means of a lock buckle or the like. The maintenance door 12 can be opened by the worker to operate, maintain and repair the crushing box 1.

[0026] Please refer to Figures 2-3 A screen 3 for screening the filter cake is fixedly arranged on the middle of the inner wall of the crushing box 1. The screen 3 can screen the filter cake in the crushing box 1. The filter cake with large particles is blocked, and the filter cake with small particles after crushing can be discharged from the screen 3 through the mesh holes, so that the size of the filter cake after crushing is uniform.

[0027] Please refer to Figures 2-3 The crushing mechanism includes a motor 4 arranged in the crushing box 1, a rotating rod 41 fixedly arranged at the output end of the motor 4 and coaxial with the crushing box 1, a rotary cutting knife 42 fixedly arranged on the outer wall of the top end of the rotating rod 41 and used for rotary cutting the filter cake, and a crushing blade 43 mounted on the outer wall of the rotating rod 41 and used for crushing the filter cake falling on the top of the screen 3 after rotary cutting. The rotary cutting knife 42 is abutted on the bottom of the feeding hopper 11. The axis of the rotating rod 41 coincides with the axis of the screen 3, so that the rotating rod 41 is coaxial with the screen 3. The rotary cutting knife 42 can be a rotary cutting blade used in the existing vegetable slicing machine. The crushing blade 43 can be a lengthened and thickened crushing blade used in the existing wall breaking machine.

[0028] The motor 4 drives the rotary cutting knife 42 and the crushing blade 43 to rotate through the rotating rod 41. The rotary cutting knife 42 can rotary cut and slice the filter cake discharged from the feeding hopper 11. The crushing blade 43 can crush the filter cake falling on the screen 3 after rotary cutting. The screen 3 can block the filter cake with large particles. The filter cake can pass through the screen 3 only after being fully crushed, thereby improving the crushing effect of the filter cake and making the crushing of the filter cake more sufficient. Under the jet negative pressure of the air jet pump 2 at the bottom of the crushing box 1, the speed of the filter cake passing through the screen 3 is accelerated, and the discharge of the filter cake after crushing is accelerated.

[0029] Please refer to Figures 2-3 A protection box 44 for protecting and supporting the motor 4 is fixedly arranged on the outer side of the motor 4. An inclined connecting plate 45 is fixedly arranged on the inner wall of the crushing box 1. The protection box 44 is fixedly connected to the bottom end of the connecting plate 45. The motor 4 is fixedly connected to the inside of the protection box 44, so that the protection box 44 can cover the motor 4 to protect the motor 4. The connecting plate 45 can connect the protection box 44 and the crushing box 1. The connecting plate 45 and the protection box 44 can support and fix the motor 4.

[0030] Please refer to Figures 2-4The outer wall of the rotating rod 41 is fixedly provided with a limiting seat 51 located directly below the screen 3, and the outer side of the motor 4 is provided with a dredging mechanism for dredging the screen 3, which comprises a spring 52 fixedly arranged at the bottom of the inner side of the limiting seat 51 and a brush 5 fixedly arranged at the top end of the spring 52. The brush 5 is slidingly connected to the top end of the matching limiting seat 51, the bristles of the brush 5 are inserted into the mesh of the screen 3, the limiting seat 51 can connect the brush 5 and the rotating rod 41, the brush 5 can rotate with the rotating rod 41, and the brush 5 can slide up and down at the top end of the matching limiting seat 51.

[0031] Under the elastic force of the spring 52, the brush 5 slides and moves up in the limiting seat 51, so that the bristles of the brush 5 are inserted into the mesh of the screen 3. At this time, under the driving of the motor 4, the rotating rod 41, the limiting seat 51 and the brush 5 and other components rotate as a whole, the brush 5 can dredge the screen 3 after rotating, and the screening effect of the screen 3 is ensured.

[0032] Please refer to Figures 2-3 The bottom of the brush 5 is fixedly provided with a hanging ring 53, and the inner bottom of the limiting seat 51 is rotatably provided with a hook 54 for hanging the hanging ring 53 after the brush 5 moves down. The staff can open the maintenance door 12 and pull the hanging ring 53 to drive the brush 5 to move down. The brush 5 moves down and is separated from the screen 3, and then the hook 54 is hung on the hanging ring 53 after moving down. The elastic force of the spring 52 can fix the brush 5 after moving down, so as to avoid the brush 5 from being worn out by long-time contact with the screen 3, and prolong the service life of the brush 5.

[0033] Working principle: when in use, the device is installed at the discharge port of the centrifugal machine, so that the filter cake discharged from the centrifugal machine enters the feeding hopper 11;

[0034] Then the motor 4 is started, and the motor 4 drives the rotary cutter 42 and the crushing blade 43 to rotate through the rotating rod 41. The rotary cutter 42 can rotary cut and slice the filter cake discharged from the feeding hopper 11, and the crushing blade 43 can crush the filter cake after rotary cutting and falling onto the screen 3. The screen 3 can block the filter cake with large particles, so that the filter cake can pass through the screen 3 after being fully crushed, improving the crushing effect of the filter cake and making the crushing of the filter cake more sufficient;

[0035] Under the jet negative pressure of the air jet pump 2 at the bottom of the crushing box 1, the speed of the filter cake passing through the screen 3 is accelerated, and the discharge of the crushed filter cake is accelerated. The crushed filter cake is pneumatically conveyed by the air jet pump 2 and is conveyed out of the crushing box 1, so as to output and transport the filter cake;

[0036] When the screen 3 needs to be dredged, the worker can open the access door 12, take off the hook 54 from the hanging ring 53, at this time the brush 5 will slide and move up in the limiting seat 51 under the elastic force of the spring 52, so that the bristles of the brush 5 are inserted into the mesh of the screen 3, then the motor 4 is started, the rotating rod 41, the limiting seat 51 and the brush 5 and other components will rotate as a whole, the brush 5 can dredge the screen 3 after rotating, and the screening effect of the screen 3 is ensured.

[0037] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filter cake crushing and output device for a centrifuge, comprising a crushing box (1), an air jet pump (2) installed at the bottom end of the crushing box (1) and used to transport the crushed filter cake, and a crushing mechanism installed in the crushing box (1), characterized in that: A screen (3) for screening filter cakes is fixedly provided at the middle of the inner wall of the crushing box (1); the crushing mechanism comprises a motor (4) provided in the crushing box (1); a rotating rod (41) fixedly provided at the output end of the motor (4) and coaxial with the crushing box (1); a rotary cutter (42) fixedly provided on the outer wall of the top end of the rotating rod (41) for rotary cutting the filter cakes; and a crushing blade (43) mounted on the outer wall of the rotating rod (41) for crushing the filter cakes that fall onto the top of the screen (3) after rotary cutting. A dredging mechanism for dredging the screen (3) is provided on the outer side of the motor (4).

2. The filter cake crushing and output device of a centrifuge according to claim 1, characterized in that: A feed hopper (11) is fixedly provided on the top of the inner wall of the crushing box (1), and an inspection door (12) is movably provided on one side of the crushing box (1).

3. The filter cake crushing and output device of a centrifuge according to claim 1, characterized in that: A protection box (44) for protecting and supporting the motor (4) is fixedly provided on the outside of the motor (4).

4. The filter cake crushing and output device of a centrifuge according to claim 3, characterized in that: An inclined connecting plate (45) is fixedly provided on the inner wall of the crushing box (1), and the protection box (44) is fixedly connected to the bottom end of the connecting plate (45).

5. The filter cake crushing and output device of a centrifuge according to claim 2, characterized in that: The rotary cutter (42) is in contact with the bottom of the feed hopper (11), and the axis of the rotating rod (41) coincides with the axis of the screen (3).

6. The filter cake crushing and output device of a centrifuge according to claim 1, characterized in that: A limiting seat (51) located directly below the screen (3) is fixedly provided on the outer wall of the rotating rod (41).

7. The filter cake crushing and output device of a centrifuge according to claim 6, characterized in that: The dredging mechanism comprises a spring (52) fixedly arranged at the inner bottom of a limiting seat (51), and a brush (5) fixedly arranged at the top end of the spring (52); the brush (5) is slidably connected to the top end of the corresponding limiting seat (51); and the bristles of the brush (5) are fitted and inserted into the meshes of the screen (3).

8. The filter cake crushing and output device of a centrifuge according to claim 7, characterized in that: A hanging ring (53) is fixedly provided at the bottom of the brush (5), and a hook (54) is rotatably provided at the inner bottom of the limiting seat (51) for hanging the hanging ring (53) after the brush (5) moves downward.

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