A crystal material damage protection type scraper centrifuge

Abstract

The present invention discloses a crystal material damage protection type scraper centrifuge, comprising a centrifuge tank body and a vacuum cover, wherein the vacuum cover is rotatably connected to the centrifuge tank body through a hinge, a metal lock is provided between the vacuum cover and the centrifuge tank body, and the metal lock is rotatably connected to the vacuum cover. In order to solve the problem that the traditional scraper structure will quickly scrape off the outer layer of crystal material when cleaning the filter bag, but the crystal material that fits tightly to the filter bag has extremely high requirements for the operation accuracy of the scraper during the scraping operation, once excessive force is applied, not only will the remaining crystal material be damaged, but the filter bag itself will also be easily worn, thereby affecting the subsequent separation effect, the filter screen inner cylinder is composed of a double-layer filter bag structure, and while achieving filtration, it can also be lifted and stretched by itself to quickly clean the residual material on the surface.

Description

Technical Field

[0001] The invention belongs to the technical field of scraper centrifuges, and in particular relates to a crystal material damage protection type scraper centrifuge. Background Art

[0002] The main motor of the scraper unloading centrifuge drives the inner and outer drums to rotate at full speed. The material is introduced into the drum through the feed pipe. Under the action of centrifugal force, the liquid phase passes through the filter cloth and the filter holes on the inner drum wall and is discharged from the inner drum. It is collected in the gap between the inner and outer drums, passes through the through hole to the siphon chamber and enters the siphon chamber, and is then sucked out of the machine by the siphon device. The solid phase is retained in the inner drum to form an annular filter cake layer. When the feed reaches the predetermined volume, the feed is stopped for further separation. At this time, washing can be carried out. After washing and separation are completed, the scraper rotates automatically to scrape the solid phase off and pass through the conveyor. The material is spirally discharged out of the machine, and then the net is automatically washed to start the next cycle; the invention with application number 201811125370.2 discloses a fully automatic vertical scraper centrifuge, which uses a material storage frame with a first through hole, a baffle with a second through hole, and a motor. The baffle does not move. When the material storage frame rotates one circle, there must be a time when the first through hole and the second through hole partially or completely overlap, so that the material can enter the interior of the centrifuge through the first through hole and the second through hole, so that the material storage frame can automatically, evenly and continuously discharge the material. After the scraper centrifuge in the above patent completes the solid-liquid separation operation, a large amount of solid crystals will accumulate and be adsorbed on the surface of the filter bag, which needs to be cleaned with a scraper. The traditional scraper structure will quickly scrape off the outer layer of crystals when cleaning the filter bag, but the scraping operation of the crystals that are closely attached to the filter bag has extremely high requirements on the operating accuracy of the scraper. Once excessive force is applied, not only will the remaining crystals be damaged, but the filter bag itself will also be easily worn, thereby affecting the subsequent separation effect; therefore, the existing needs are not met, and a crystal damage protection type scraper centrifuge is proposed. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a crystal material damage protection type scraper centrifuge. The inner cylinder of the filter screen is composed of a double-layer filter bag structure. While achieving filtration, it can also be raised and lowered and stretched to quickly clean the residual material on the surface, which can solve the problems in the prior art.

[0004] In order to achieve the above purpose and the above technical effect, the present invention adopts the following technical solution:

[0005] A crystal material damage protection type scraper centrifuge comprises a centrifuge tank body and a vacuum cover, wherein the vacuum cover is rotatably connected to the centrifuge tank body via a hinge, a metal lock buckle is arranged between the vacuum cover and the centrifuge tank body, the metal lock buckle is rotatably connected to the vacuum cover, a centrifuge drum is arranged inside the centrifuge tank body, a filter screen inner cylinder is arranged inside the centrifuge drum, a centrifuge cavity is arranged between the centrifuge drum and the centrifuge tank body, a solid-liquid separation sieve cavity is arranged inside the filter screen inner cylinder, the centrifuge tank body is connected to a mounting base arranged below the centrifuge tank body via bolts, and shock-absorbing tripods are arranged around the bottom of the mounting base.

[0006] Furthermore, the filter screen inner cylinder includes a double-layer filter bag and a material-blocking cone cover, the material-blocking cone cover is connected to the double-layer filter bag arranged below the material-blocking cone cover through a slot, the double-layer filter bag is connected to a landing pull ring arranged at the bottom of the double-layer filter bag through the slot, and a lifting cylinder assembly is arranged on the inner side of the landing pull ring.

[0007] Furthermore, the lifting cylinder assembly includes a pneumatic cylinder body and a pneumatic top cap. The pneumatic top cap is arranged above the pneumatic cylinder body. The pneumatic top cap is connected to the landing pull ring through a bridging spring. There are six bridging springs. The pneumatic top cap is connected to the pneumatic cylinder body through a piston push rod, and the piston push rod extends to the interior of the pneumatic cylinder body.

[0008] Furthermore, the pneumatic cylinder is connected to a pneumatic conversion valve disposed at the bottom of the pneumatic cylinder via a flange, an air intake pipe and an exhaust pipe are disposed on one side of the bottom of the pneumatic conversion valve, and the air intake pipe is disposed at the bottom of the exhaust pipe.

[0009] Furthermore, filter bag buckles are arranged between the double-layer filter bags, and the filter bag buckles are distributed in an annular manner along the circumferential surface of the double-layer filter bags. The filter bag buckles include rivet buckles and elastic curved sheets. There are two rivet buckles. The elastic curved sheet is fitted and connected to the double-layer filter bag. One end of the elastic curved sheet is connected to a bridging spring. The rivet buckles are connected to the double-layer filter bag via a slot. The rivet buckles are connected via a spacing spring, and the spacing spring is connected to the elastic curved sheet via a stretching arc slot.

[0010] Furthermore, the centrifugal drum is rotatably connected to the drive sleeve through a transfer bearing at the bottom, the drive sleeve is connected to the centrifuge tank body through bolts, and the drive sleeve is connected to a drop hopper arranged below the centrifugal drum through screws.

[0011] Furthermore, a solid discharge valve port is provided at the bottom of the drop hopper, and a liquid discharge pipe port is provided at one side of the bottom of the centrifuge tank body, and the liquid discharge pipe port extends to the interior of the centrifugal chamber.

[0012] Furthermore, a feed pipe shaft is provided on the outer surface of the vacuum cover, a scraper drive module is provided on one side of the feed pipe shaft, a coupling scraper at the bottom of the scraper drive module extends to the interior of the centrifuge tank, the coupling scraper is rotatably connected to the scraper drive module, and the coupling scraper is configured as a lifting structure.

[0013] Furthermore, a sensor box is provided on the other side of the feed pipe axis, a tactile swing shaft at the bottom of the sensor box extends to the interior of the centrifuge tank, the tactile swing shaft is rotatably connected to the sensor box, and a water inlet port is provided on the adjacent side of the feed pipe axis, and a stamping water pipe at the bottom of the water inlet port extends to the interior of the centrifuge tank.

[0014] Furthermore, a rotary drive motor is provided on the other side of the water inlet port, and a swash plate distributor at one end of the rotary drive motor extends below the feed pipe axis. The swash plate distributor adopts an oblique structure design, and the swash plate distributor is rotationally connected to the rotary drive motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, a centrifugal drum and a filter screen inner drum are installed inside the centrifugal drum, wherein the filter screen inner drum is located inside the centrifugal drum, and the material enters the solid-liquid separation screen cavity inside the filter screen inner drum through the feed inlet at the top of the vacuum cover for solid-liquid separation operation, and the separated liquid enters the centrifugal cavity and is finally discharged through the pipe opening at the bottom. The filter screen inner drum is composed of a double-layer filter bag structure, and while achieving filtration, it can also be lifted and stretched to adjust itself, so as to quickly clean the residual material on the surface;

[0017] 2. In the present invention, a lifting cylinder assembly is arranged at the bottom of the inner side of the inner cylinder of the filter screen, and the lifting cylinder assembly is composed of a pneumatic cylinder body and a pneumatic top cap, wherein the pneumatic top cap at the top is connected to the drop-in pull ring at the bottom of the double-layer filter bag through a bridging spring, and the piston push rod inside the pneumatic cylinder body can drive the pneumatic top cap to lift and lower, and during the lifting process of the pneumatic top cap, the drop-in pull ring will be driven to lift and lower synchronously, and when the drop-in pull ring descends, the double-layer filter bag connected thereto will change from a cylindrical structure to an inverted cone structure, and in this reciprocating cycle, the residual crystal material on the surface of the filter bag can be shaken off after the scraper is cleaned, thereby improving the cleaning effect while ensuring the service life of the filter bag and the integrity of the crystal material;

[0018] 3. In the present invention, the inner and outer filter bags are connected and fixed by six groups of filter bag buckles, each group is composed of five filter bag buckles arranged longitudinally, and these filter bag buckles are distributed in an annular manner along the circumferential surface of the double-layer filter bag. The filter bag buckles are composed of rivets and elastic curved sheets. The rivets are connected to the double-layer filter bag through a slot, and the rivets are connected and fixed by a spacing spring. In this way, the two layers of filter bags can be separated to avoid the inner and outer filter bags from sticking together during the stretching process. At the same time, the filter bag buckles can also play a role of expanding and supporting the inner filter bag to avoid the impact of solid materials on the inner filter bag during the centrifugal separation process, causing the filter bag to lose surface tension and elasticity. One end of the elastic curved sheet of the series riveted buckle is connected to the bridging spring, and the spacing spring and the elastic curved sheet are installed through a stretching arc groove. In the process of scraping the material by the scraper, the falling material will contact the bridging spring, and the impact will cause the bridging spring to vibrate. The vibration can be transmitted to the filter bag through the elastic curved sheet, thereby helping to separate the crystal material from the filter bag, which can reduce the operating load of the scraper operation;

[0019] 4. In the present invention, the material is input into the interior of the inclined disc distributor through the feed pipe shaft, and the inclined disc distributor is driven to rotate by the rotary drive motor to evenly disperse the material to the surface of the filter bag around it. When the crystal material on the surface of the filter bag accumulates to a certain thickness, it will contact the tactile swing shaft. At this time, the material transportation is stopped, and the drum is rotated quickly to separate the liquid in the crystal material. After complete separation, the crystal material is cleaned by a stamping water pipe. After cleaning, the water is separated, and the scraper drive module controls the shaft-connected scraper to rotate to the surface of the crystal material for scraping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is the overall front view of the present invention.

[0022] Figure 2 It is a schematic diagram of the centrifuge tank structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the centrifuge tank of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the centrifugal drum of the present invention.

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the centrifugal drum of the present invention.

[0026] Figure 6 It is a schematic diagram of the structure of the lifting cylinder assembly of the present invention.

[0027] Figure 7 It is a schematic diagram of the filter bag buckle structure of the present invention.

[0028] Figure 8 It is a schematic diagram of the vacuum sealing structure of the present invention.

[0029] In the figure: 1-centrifuge tank; 2-vacuum cover; 3-mounting base; 4-scraper drive module; 5-rotation drive motor; 6-feeding pipe shaft; 7-sensor box; 8-water inlet port; 9-lifting cylinder assembly; 10-filter bag buckle; 101-centrifugal drum; 102-filter screen inner drum; 103-drop hopper; 104-drive sleeve shaft; 105-adapter bearing; 1011-centrifugal chamber; 1012-liquid discharge pipe; 1021-solid-liquid separation sieve chamber; 1022-double-layer filter bag; 1023-blocking cone cover; 1024-position pull ring; 1025-bridge spring; 1031-solid discharge valve port; 201-metal lock; 301-shock-absorbing tripod; 401-coupling scraper; 501-inclined disc distributor; 701-tactile swing shaft; 801-stamping water pipe; 901-pneumatic cylinder; 902-pneumatic conversion valve; 903-intake pipe; 904-exhaust pipe; 905-pneumatic top cap; 9011-piston push rod; 1001-rivet buckle; 1002-distance spring; 1003-elastic curved sheet; 1004-stretching arc groove. DETAILED DESCRIPTION

[0030] The technical solution of the invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0031] In the description of the invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0032] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0033] See also Figure 1-2 , an embodiment provided by the present invention: a crystal material damage protection type scraper centrifuge, comprising a centrifuge tank body 1 and a vacuum cover 2, the vacuum cover 2 is rotatably connected to the centrifuge tank body 1 through a hinge, a metal lock buckle 201 is arranged between the vacuum cover 2 and the centrifuge tank body 1, the metal lock buckle 201 is rotatably connected to the vacuum cover 2, a centrifuge drum 101 is arranged inside the centrifuge tank body 1, a filter screen inner cylinder 102 is arranged inside the centrifuge drum 101, a centrifuge cavity 1011 is arranged between the centrifuge drum 101 and the centrifuge tank body 1, a solid-liquid separation sieve cavity 1021 is arranged inside the filter screen inner cylinder 102, the centrifuge tank body 1 is connected to a mounting base 3 arranged below the centrifuge tank body 1 through bolts, and shock-absorbing tripods 301 are arranged around the bottom of the mounting base 3;

[0034] A centrifugal drum 101 and a filter screen inner drum 102 are installed inside the centrifuge tank 1, wherein the filter screen inner drum 102 is located inside the centrifugal drum 101, and the material enters the solid-liquid separation sieve cavity 1021 inside the filter screen inner drum 102 through the feed port on the top of the vacuum cover 2 for solid-liquid separation operation, and the separated liquid will enter the centrifugal chamber 1011, and finally be discharged through the pipe port at the bottom. The filter screen inner drum 102 is composed of an inner and outer two-layer filter bag structure. While achieving filtration, it can also be lifted, stretched and adjusted, so as to quickly clean the residual material on the surface.

[0035] See also Figure 1-7The filter screen inner cylinder 102 includes a double-layer filter bag 1022 and a material blocking cone cover 1023. The material blocking cone cover 1023 is connected to the double-layer filter bag 1022 arranged below the material blocking cone cover 1023 through a slot. The double-layer filter bag 1022 is connected to a drop-in pull ring 1024 arranged at the bottom of the double-layer filter bag 1022 through a slot. A lifting cylinder assembly 9 is arranged on the inner side of the drop-in pull ring 1024. The lifting cylinder assembly 9 includes a pneumatic cylinder body 901 and a pneumatic top cap 905. The pneumatic top cap 905 is arranged above the pneumatic cylinder body 901. 05 is connected to the drop pull ring 1024 through a bridging spring 1025, and there are six bridging springs 1025. The pneumatic top cap 905 is connected to the pneumatic cylinder 901 through a piston push rod 9011, and the piston push rod 9011 extends to the inside of the pneumatic cylinder 901. The pneumatic cylinder 901 is connected to the pneumatic conversion valve 902 arranged at the bottom of the pneumatic cylinder 901 through a flange. An air intake pipe 903 and an exhaust pipe 904 are arranged on one side of the bottom of the pneumatic conversion valve 902, and the air intake pipe 903 is arranged at the bottom of the exhaust pipe 904;

[0036] A lifting cylinder assembly 9 is arranged at the bottom of the inner side of the filter screen inner tube 102, and the lifting cylinder assembly 9 is composed of a pneumatic cylinder body 901 and a pneumatic top cap 905, wherein the pneumatic top cap 905 at the top is connected to the landing pull ring 1024 at the bottom of the double-layer filter bag 1022 through a bridging spring 1025, and the piston push rod 9011 inside the pneumatic cylinder body 901 can drive the pneumatic top cap 905 to lift and lower, and in the process of the pneumatic top cap 905 lifting and lowering, the landing pull ring 1024 will be driven to lift and lower synchronously. When the landing pull ring 1024 descends, the double-layer filter bag 1022 connected thereto will change from a cylindrical structure to an inverted cone structure. In this reciprocating cycle, the residual crystal material on the surface of the filter bag can be shaken off after the scraper cleaning, thereby improving the cleaning effect while ensuring the service life of the filter bag.

[0037] A filter bag buckle 10 is arranged between the double-layer filter bags 1022. The filter bag buckle 10 is annularly distributed along the circumferential surface of the double-layer filter bags 1022. The filter bag buckle 10 includes a rivet buckle 1001 and an elastic curved sheet 1003. There are two rivet buckles 1001. The elastic curved sheet 1003 is fitted and connected to the double-layer filter bags 1022. One end of the elastic curved sheet 1003 is connected to the bridging spring 1025. The rivet buckle 1001 is connected to the double-layer filter bags 1022 through a slot. The rivet buckles 1001 are connected through a spacing spring 1002. The spacing spring 1002 is connected to the elastic curved sheet 1003. The sheet 1003 is connected through the stretching arc groove 1004, the centrifugal drum 101 is rotatably connected to the drive sleeve shaft 104 through the adapter bearing 105 at the bottom, the drive sleeve shaft 104 is connected to the centrifuge tank body 1 through bolts, and the drive sleeve shaft 104 is connected to the drop hopper 103 arranged below the centrifugal drum 101 through screws, and the bottom of the drop hopper 103 is provided with a solid discharge valve port 1031, and one side of the bottom of the centrifuge tank body 1 is provided with a liquid discharge pipe port 1012, and the liquid discharge pipe port 1012 extends to the inside of the centrifugal chamber 1011;

[0038] The inner and outer filter bags are connected and fixed by six groups of filter bag buckles 10, each group is composed of five filter bag buckles 10 arranged longitudinally, and these filter bag buckles 10 are distributed in an annular manner along the circumferential surface of the double-layer filter bag 1022. The filter bag buckle 10 is composed of a rivet buckle 1001 and an elastic curved sheet 1003. The rivet buckle 1001 is connected to the double-layer filter bag 1022 through a slot, and the rivet buckles 1001 are connected and fixed by a spacing spring 1002, so that the two layers of filter bags can be separated to prevent the inner and outer filter bags from sticking together during the stretching process. At the same time, the filter bag buckle 10 can also play a role in the inner filter bag. To achieve an expansion and support effect, the impact of solid materials on the inner filter bag during centrifugal separation may cause the filter bag to lose its surface tension and elasticity. One end of the elastic curved piece 1003 of the series rivet 1001 is connected to the bridging spring 1025, and the spacing spring 1002 and the elastic curved piece 1003 are installed by stretching the arc groove 1004. When the scraper is scraping off the material, the falling material will contact the bridging spring 1025. The impact will cause the bridging spring 1025 to vibrate. The vibration can be transmitted to the filter bag through the elastic curved piece 1003, thereby helping to separate the crystal material from the filter bag.

[0039] See also Figure 1 and 8, a feed pipe shaft 6 is provided on the outer surface of the vacuum cover 2, a scraper drive module 4 is provided on one side of the feed pipe shaft 6, a coupling scraper 401 at the bottom of the scraper drive module 4 extends to the inside of the centrifuge tank body 1, the coupling scraper 401 is rotatably connected to the scraper drive module 4, the coupling scraper 401 is arranged as a lifting structure, a sensor box 7 is provided on the other side of the feed pipe shaft 6, a touch swing shaft 701 at the bottom of the sensor box 7 extends to the inside of the centrifuge tank body 1, the touch swing shaft 701 is rotatably connected to the sensor box 7, a water inlet port 8 is provided on the adjacent side of the feed pipe shaft 6, a stamping water pipe 801 at the bottom of the water inlet port 8 extends to the inside of the centrifuge tank body, a rotary drive motor 5 is provided on the other side of the water inlet port 8, an inclined disc distributor 501 at one end of the rotary drive motor 5 extends to the bottom of the feed pipe shaft 6, the inclined disc distributor 501 adopts an oblique structure design, and the inclined disc distributor 501 is rotatably connected to the rotary drive motor 5;

[0040] The material is input into the interior of the inclined disc distributor 501 through the feed pipe shaft 6, and the inclined disc distributor 501 is driven to rotate by the rotary drive motor 5 to evenly distribute the material to the surface of the filter bag around it. When the crystal material on the surface of the filter bag accumulates to a certain thickness, it will contact the tactile swing shaft 701. At this time, the material transportation is stopped, and the drum is rotated rapidly to separate the liquid in the crystal material. After complete separation, the crystal material is cleaned by the stamping water pipe 801. After cleaning, the water is separated, and the scraper drive module 4 controls the shaft scraper 401 to rotate to the surface of the crystal material for scraping.

[0041] Working principle: a centrifugal drum 101 and a filter screen inner drum 102 are installed inside the centrifugal drum 1, wherein the filter screen inner drum 102 is located inside the centrifugal drum 101, and the material is input into the inside of the inclined disc distributor 501 through the feed pipe shaft 6, and the inclined disc distributor 501 is driven to rotate by the rotating drive motor 5 to evenly distribute the material to the surface of the filter bag around. When the crystal material on the surface of the filter bag accumulates to a certain thickness, it will contact the tactile swing shaft 701, and the material transportation is stopped at this time. The drum is rotated quickly to separate the liquid in the crystal material. After complete separation, the crystal material is cleaned by the stamping water pipe 801. After cleaning, the water is separated and the coupling is controlled by the scraper drive module 4. The scraper 401 rotates to the surface of the crystal material to scrape it. A lifting cylinder assembly 9 is arranged at the bottom of the inner side of the filter screen inner tube 102. The lifting cylinder assembly 9 is composed of a pneumatic cylinder body 901 and a pneumatic top cap 905. The pneumatic top cap 905 at the top is connected to the drop pull ring 1024 at the bottom of the double-layer filter bag 1022 through a bridging spring 1025, and the piston push rod 9011 inside the pneumatic cylinder body 901 can drive the pneumatic top cap 905 to rise and fall. In the process of the pneumatic top cap 905 rising and falling, the drop pull ring 1024 will be driven to rise and fall synchronously. When the drop pull ring 1024 falls, the double-layer filter bag 1022 connected thereto will change from a cylindrical structure to a It is an inverted cone structure. With this reciprocating cycle, the residual crystal material on the surface of the filter bag can be shaken off after the scraper cleaning, thereby improving the cleaning effect while ensuring the service life of the filter bag. The inner and outer filter bags are connected and fixed by six groups of filter bag buckles 10, each group consisting of five longitudinally arranged filter bag buckles 10, and these filter bag buckles 10 are distributed in a ring along the circumferential surface of the double-layer filter bag 1022. The filter bag buckle 10 is composed of a rivet buckle 1001 and an elastic curved sheet 1003. The rivet buckle 1001 is connected to the double-layer filter bag 1022 through a slot, and the rivet buckles 1001 are connected and fixed by a spacing spring 1002, which can separate the two layers of filter bags to avoid The inner and outer filter bags are bonded together, and the filter bag buckle 10 can also expand the inner filter bag to prevent the solid material from impacting the inner filter bag during centrifugal separation, causing the filter bag to lose surface tension and elasticity. One end of the elastic curved piece 1003 of the series rivet buckle 1001 is connected to the bridging spring 1025, and the spacing spring 1002 and the elastic curved piece 1003 are installed by stretching the arc groove 1004. When the scraper is scraping the material, the falling material will contact the bridging spring 1025, and the impact will cause the bridging spring 1025 to vibrate. The vibration can be transmitted to the filter bag through the elastic curved piece 1003, thereby helping to separate the crystal material from the filter bag.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A scraper centrifuge with a crystal material damage protection, comprising a centrifuge tank (1) and a vacuum cover (2), characterized in that: The vacuum cover (2) is rotatably connected to the centrifuge tank body (1) via a hinge; a metal lock buckle (201) is provided between the vacuum cover (2) and the centrifuge tank body (1); the metal lock buckle (201) is rotatably connected to the vacuum cover (2); a centrifuge drum (101) is provided inside the centrifuge tank body (1); a filter screen inner cylinder (102) is provided inside the centrifuge drum (101); a centrifuge cavity (1011) is provided between the centrifuge drum (101) and the centrifuge tank body (1); a solid-liquid separation sieve cavity (1021) is provided inside the filter screen inner cylinder (102); the centrifuge tank body (1) is connected to a mounting base (3) provided below the centrifuge tank body (1) via bolts; shock-absorbing tripods (301) are provided around the bottom of the mounting base (3); The filter screen inner cylinder (102) comprises a double-layer filter bag (1022) and a material-blocking cone cover (1023); the material-blocking cone cover (1023) is connected to the double-layer filter bag (1022) arranged below the material-blocking cone cover (1023) via a slot; the double-layer filter bag (1022) is connected to a drop-down pull ring (1024) arranged at the bottom of the double-layer filter bag (1022) via the slot; a lifting cylinder assembly (9) is arranged on the inner side of the drop-down pull ring (1024); The lifting cylinder assembly (9) comprises a pneumatic cylinder body (901) and a pneumatic top cap (905), wherein the pneumatic top cap (905) is arranged above the pneumatic cylinder body (901), and the pneumatic top cap (905) is connected to a drop pull ring (1024) via a bridging spring (1025), and there are six bridging springs (1025). The pneumatic top cap (905) and the pneumatic cylinder body (901) are connected via a piston push rod (9011), and the piston push rod (9011) extends into the interior of the pneumatic cylinder body (901); A filter bag buckle (10) is provided between the double-layer filter bags (1022). The filter bag buckle (10) is distributed in an annular manner along the circumferential surface of the double-layer filter bags (1022). The filter bag buckle (10) comprises a rivet buckle (1001) and an elastic curved sheet (1003). There are two rivet buckles (1001). The elastic curved sheet (1003) is fitted and connected to the double-layer filter bag (1022). One end of the elastic curved sheet (1003) is connected to a bridging spring (1025). The rivet buckle (1001) is connected to the double-layer filter bag (1022) via a slot. The rivet buckles (1001) are connected via a spacing spring (1002). The spacing spring (1002) is connected to the elastic curved sheet (1003) via a stretching arc slot (1004).

2. According to claim 1, a scraper centrifuge with protection against crystal breakage, characterized in that: The pneumatic cylinder (901) is connected to a pneumatic conversion valve (902) arranged at the bottom of the pneumatic cylinder (901) via a flange, and an air intake pipe (903) and an exhaust pipe (904) are arranged on one side of the bottom of the pneumatic conversion valve (902), and the air intake pipe (903) is arranged at the bottom of the exhaust pipe (904).

3. The scraper centrifuge according to claim 1, characterized in that: The centrifugal drum (101) is rotatably connected to the drive sleeve (104) via a transfer bearing (105) at the bottom; the drive sleeve (104) is connected to the centrifuge tank (1) via bolts; and the drive sleeve (104) is connected to a drop hopper (103) disposed below the centrifugal drum (101) via screws.

4. A scraper centrifuge with protection against crystal breakage according to claim 3, characterized in that: A solid discharge valve port (1031) is provided at the bottom of the drop hopper (103), and a liquid discharge pipe port (1012) is provided at one side of the bottom of the centrifuge tank (1), and the liquid discharge pipe port (1012) extends into the interior of the centrifugal chamber (1011).

5. The scraper centrifuge according to claim 1, characterized in that: The outer surface of the vacuum cover (2) is provided with a feed pipe shaft (6), and a scraper drive module (4) is provided on one side of the feed pipe shaft (6). A shaft-connected scraper (401) at the bottom of the scraper drive module (4) extends into the interior of the centrifuge tank (1). The shaft-connected scraper (401) is rotatably connected to the scraper drive module (4), and the shaft-connected scraper (401) is configured as a lifting structure.

6. The scraper centrifuge with crystal material damage protection according to claim 5, characterized in that: A sensor box (7) is provided on the other side of the feed pipe shaft (6); a tactile swing shaft (701) at the bottom of the sensor box (7) extends into the interior of the centrifuge tank (1); the tactile swing shaft (701) is rotatably connected to the sensor box (7); a water inlet port (8) is provided on the side adjacent to the feed pipe shaft (6); a stamping water pipe (801) at the bottom of the water inlet port (8) extends into the interior of the centrifuge tank.

7. A crystal material damage protection type scraper centrifuge according to claim 6, characterized in that: A rotary drive motor (5) is provided on the other side of the water inlet port (8); a slanted disc distributor (501) at one end of the rotary drive motor (5) extends below the feed pipe shaft (6); the slanted disc distributor (501) adopts an oblique structural design; the slanted disc distributor (501) is rotatably connected to the rotary drive motor (5).

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