A filter housing for a melt filter

Abstract

The application discloses a filter bin of a melt filter, which comprises a bin body, an inclined partition plate, a bin cover and a quick-release structure. The bin body is provided with a pre-filtering inlet and a post-filtering outlet. The inclined partition plate is arranged obliquely, so that the inner end of the post-filtering outlet is communicated with the lower end of the post-filtering outlet, and the melt is guided to be completely discharged by gravity. The quick-release structure comprises a lock plate, a lock frame, a lock hook, a pull frame and other components. A telescopic control assembly drives an inserting rod, and the pull frame is matched with a transmission block, so that the quick locking / unlocking of the lock hook and the lock plate is realized. In some embodiments, elastic members are arranged between the lock block and the lock hook, so that the locking stability is enhanced. The telescopic control assembly adopts a rotating ring linkage multi-inserting rod, so that the synchronism is ensured. The filter bin is further provided with a sealing structure which is linked with the lock hook. A lifting ring drives a sealing ring to cooperate with hydraulic oil, so that mechanical-hydraulic double sealing is realized. The filter bin solves the problems of melt residue, inconvenient disassembly and unreliable sealing of the existing filter bin, has the advantages of complete melt discharge, efficient disassembly and high sealing performance, and is suitable for the field of chemical melt filtration.

Description

Technical Field

[0001] This invention relates to the field of chemical production equipment technology, specifically to a filter chamber of a melt filter. Background Technology

[0002] In the chemical production process, melt filters are core equipment for ensuring melt quality. The design of their filter chambers directly affects production efficiency and product quality. Taking the authorized invention CN111514940B "A High-Efficiency and Energy-Saving Melt Filter" as an example, this patent improves filtration efficiency to a certain extent by adding filter components and transmission mechanisms, and has the function of automatically cleaning impurities. However, upon in-depth analysis of this technology and the actual application of existing melt filters, many problems still need to be overcome.

[0003] From the perspective of connection structure, traditional filter chamber covers and bodies are mostly fastened with bolts. As mentioned in the patent above, although there are some innovations in the filtration mechanism, the traditional mode is still used in the connection of the cover. During equipment maintenance, operators need to use tools such as wrenches to tighten a large number of bolts one by one. This process is not only time-consuming and laborious, prolonging equipment downtime and affecting production continuity, but also frequent disassembly can easily lead to stripped bolt threads and worn screw holes, reducing connection reliability.

[0004] Focusing on the characteristics of melt flow, the flow state of melt in the filter chamber is complex and significantly affected by factors such as chamber structure and melt viscosity. Flat-bottom chamber design is prone to forming flow dead zones at the bottom, slowing down the melt flow rate and making it easy for impurities to accumulate. Even with a cleaning mechanism as described in patent CN111514940B, it is difficult to completely remove residual materials in the corners. Over time, the material solidifies and accumulates, which not only wastes raw materials and increases production costs, but may also clog the filter pores, reduce filtration accuracy, and even contaminate subsequent melts, seriously affecting product quality.

[0005] The reliability of quick-release structures is also not to be ignored. Some quick-release designs have extremely high requirements for installation accuracy in the locking process due to the high structural rigidity. Even a slight deviation can cause jamming, making it impossible to install or remove the cover properly. Furthermore, in high-pressure melt filtration scenarios, traditional quick-release structures cannot guarantee a uniform pressure distribution on the sealing surface, which can easily lead to leakage and fail to meet the stringent safety and stability requirements of chemical production.

[0006] In summary, existing melt filter chambers have shortcomings in terms of chamber cover connection, melt flow, and quick-release sealing, and innovative designs are urgently needed to improve equipment performance and meet the efficient, stable, and safe production needs of the chemical industry. Summary of the Invention

[0007] The present invention aims to solve one of the technical problems existing in the prior art.

[0008] This application provides a filter chamber for a melt filter, including a chamber body with a pre-filter inlet and a post-filter outlet, and an inclined partition disposed within the chamber body. The inner end of the post-filter outlet is connected to the lower end of the inclined partition. A chamber cover is detachably installed on the top of the chamber body via a quick-release structure. The quick-release structure includes several locking plates, several locking frames, several locking hooks, several locking blocks, several pull brackets, several insert rods, and a telescopic control assembly. Each locking plate is fixedly fixed to the outer wall of the chamber body at circumferential intervals. Each locking frame is fixedly fixed to the outer ring of the chamber cover at circumferential intervals. Each locking hook is slidably installed on a corresponding locking block. The pull bracket is movably installed in the locking frame, with its upper end connected to the locking frame and its lower end connected to the corresponding locking hook. Each insert rod is controlled to extend or retract via the telescopic control assembly, controlling the lifting and lowering of the pull bracket to lock / unlock the locking hook with the lower end of the corresponding locking plate.

[0009] The pull frame is in the shape of an inverted U-shape, with transmission blocks on both sides of the top. The lower end extends to the bottom of the lock frame and is movably connected to the upper end of the lock hook. Slide grooves are opened on the opposite side walls of the lock frame. The lower section of the slide groove is arc-shaped and the upper section extends vertically upward. The transmission blocks are slidably installed in the slide grooves. The interior of the pull frame is a transverse groove for inserting rods.

[0010] An inclined guide surface is provided on the top surface of the transverse groove near the telescopic control component.

[0011] The locking hook includes a connecting section and a locking section that are perpendicular to each other. The connecting section is vertically slidably mounted on the locking block and slidably mounted in the transverse groove. The locking section is fixed at the lower end of the connecting section and extends toward the outer wall of the compartment. A vertical groove is opened on the connecting section, and a pull block that slides with the vertical groove is fixed at the lower end of the transverse groove.

[0012] The locking block is fixed at the bottom of the lock frame and has an equilateral trapezoidal cross-section. The inner wall of the lock hook has a vertical sliding groove that is adapted to the shape of the locking block. The locking block slides in conjunction with the vertical sliding groove. An elastic element is provided between the top of the lock hook and the bottom of the lock frame.

[0013] The elastic element includes a blind hole at the bottom of the lock frame and a pin fixed at the top of the lock hook. The pin is slidably inserted into the blind hole and has a spring at its top.

[0014] The telescopic control assembly includes a fixed block fixed to the top of the cover plate. The peripheral wall of the fixed block is provided with slots for the inner end of the insertion rod to slide. A rotating ring is rotatably installed on the peripheral wall of the fixed block. Several through-slots are provided on the outer peripheral wall of the rotating ring. Arc grooves are symmetrically provided on the upper and lower end faces of the slots. The middle section of the insertion rod is slidably installed in the corresponding slot and is connected to each arc groove through a push-pull slider.

[0015] It also includes an upper ring groove on the bottom surface of the bin cover and a lower ring groove on the top surface of the bin body. A lifting ring is movably installed in the lower ring groove. The bottom of the lifting ring is linked to each locking hook through a linkage component. A sealing ring is installed on the top surface of the lifting ring.

[0016] A sealing ring groove is opened at the top of the lifting ring. Hydraulic oil is provided in the sealing ring groove and the lifting shell is slidably installed in a sealing manner. The sealing ring is installed on the top surface of the lifting shell through an annular mounting groove. Several liquid outlet holes communicating with the annular mounting groove are provided at intervals on the top of the lifting shell. The longitudinal cross-section of the sealing ring and the annular mounting groove are both inverted U-shape.

[0017] The linkage includes a lifting groove, which is located on the outer wall of the compartment and the inner side of the lock plate. The top of the lifting groove is connected to the lower ring groove through a connecting hole. A lifting block is slidably installed in the lifting groove. The outer end of the lifting block extends out of the lifting groove to contact the lock hook, and the upper end is fixed to the bottom surface of the lifting ring through a connecting rod.

[0018] The beneficial effects of this invention are as follows:

[0019] The inclined design of the baffle plate uses gravity to guide the melt to flow towards the filter outlet, avoiding liquid accumulation in the chamber, achieving complete discharge of the melt, reducing material waste, and reducing the risk of residual melt contaminating the equipment.

[0020] The quick-release structure uses a telescopic control component to link the insert rod, pull frame, and locking hook. The locking and unlocking of the compartment cover can be completed simply by controlling the telescopic extension, making it easy to operate and greatly reducing the disassembly and assembly time during maintenance.

[0021] The locking mechanism of the hook and the locking plate fits tightly, and can withstand the pressure inside the bin during equipment operation, preventing the bin cover from loosening and ensuring production safety. Attached Figure Description

[0022] Figure 1 This is a perspective view of the filter chamber of the melt filter in the embodiments of this application;

[0023] Figure 2 This is a perspective view (longitudinal section) of the filter chamber of the melt filter in an embodiment of this application.

[0024] Figure 3 This is a perspective view (top portion longitudinally cut) of the filter chamber of the melt filter in an embodiment of this application.

[0025] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0026] Figure 5 This is a perspective view of the quick-release structure in the embodiments of this application;

[0027] Figure 6 This is a perspective view of the pull frame and locking hook in the embodiments of this application.

[0028] Figure Labels

[0029] 1-Compartment body, 2-Pre-filter inlet, 3-Post-filter outlet, 4-Inclined partition, 5-Quick-release structure, 51-Locking plate, 52-Locking frame, 53-Locking hook, 531-Connecting section, 532-Locking section, 534-Vertical groove, 535-Pull block, 536-Vertical slide groove, 54-Locking block, 55-Pull frame, 551-Transmission block, 552-Slide groove, 553-Horizontal through groove, 554-Inclined guide surface, 56-Insertion rod, 57-Telescopic control assembly, 571 -Fixed block, 572-Slot, 573-Rotating ring, 574-Fan-shaped groove, 575-Arc groove, 6-Crate cover, 61-Upper ring groove, 62-Lower ring groove, 63-Lifting ring, 64-Sealing ring, 65-Sealing ring groove, 66-Annular mounting groove, 67-Liquid outlet, 68-Lifting shell, 7-Elastic element, 71-Blind hole, 72-Insertion post, 8-Linking element, 81-Lifting groove, 82-Connecting hole, 83-Lifting block, 84-Connecting rod. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] The filter chamber of the melt filter provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0033] like Figures 1 to 6As shown in the embodiment of this application, a filter chamber for a melt filter is provided, including a chamber body 1 with a pre-filter inlet 2 and a post-filter outlet 3, and an inclined partition 4 disposed inside the chamber body 1. The inner end of the post-filter outlet 3 is connected to the lower end of the inclined partition 4. A chamber cover 6 is detachably installed on the top of the chamber body 1 through a quick-release structure 5. The quick-release structure 5 includes several locking plates 51, several locking frames 52, several locking hooks 53, several locking blocks 54, several pull brackets 55, several insert rods 56, and a telescopic control component 57. Each locking plate 51 is fixedly fixed to the outer wall of the chamber body 1 at intervals along the circumference. Each locking frame 52 is fixedly fixed to the outer ring of the chamber cover 6 at intervals along the circumference. Each locking hook 53 is slidably installed on the corresponding locking block 54. Each pull bracket 55 is movably installed in the locking frame 52, with its upper end connected to the locking frame 52 and its lower end connected to the corresponding locking hook 53. Each insert rod 56 is controlled to extend or retract through the telescopic control component 57, and the pull bracket 55 is controlled to rise or fall, thereby locking / unlocking the locking hook 53 with the lower end of the corresponding locking plate 51.

[0034] In this embodiment of the application, due to the above-mentioned structure, the core structure includes a chamber 1, an inclined baffle 4, a chamber cover 6, and a quick-release structure 5. The chamber 1 is cylindrical, and the inner wall is smooth to reduce melt adhesion. The pre-filter inlet 2 is located in the upper middle part of the side wall of the chamber 1, and the post-filter outlet 3 is located at the bottom of the chamber 1 and its inner end is aligned with the lower end of the inclined baffle 4. The inclined baffle 4 is fixedly inclined inside the chamber 1, dividing the chamber space into an upper filtration chamber and a lower guide chamber. The filtration chamber contains a filter element (not shown in the figure). After the melt is filtered by the filter element, it flows along the surface of the inclined baffle 4 to the post-filter outlet 3, and the material is completely discharged by gravity, avoiding the bottom liquid accumulation problem of the traditional flat-bottomed chamber 1.

[0035] The quick-release structure 5 includes 3-6 sets of locking units evenly distributed around the perimeter. Each locking unit consists of a locking plate 51 (fixed to the compartment body 1), a locking frame 52 (fixed to the compartment cover 6), a locking hook 53, a locking block 54, a pull frame 55, a plug rod 56, and a telescopic control component 57. The locking plate 51 is fixed to the outer wall of the compartment body 1. The locking frame 52 is a U-shaped bracket, fixed to the edge of the compartment cover 6 and corresponding to the position of the locking plate 51. When no installation action is performed, the compartment cover 6 can be freely placed on the top of the compartment body 1. Rotating the compartment cover 6 moves the locking hook 53 to the corresponding locking plate 51, and the plug rod 56 retracts into the telescopic control component 57.

[0036] When the compartment cover 6 needs to be installed, the telescopic control component 57 drives the insertion rod 56 to extend outward. The end of the insertion rod 56 has a wedge-shaped structure, which cooperates with the transverse groove 553 of the pull frame 55 to push the pull frame 55 to move upward along the inner side of the lock frame 52, thereby driving the lock hook 53 to rise and engage with the lock plate 51, so as to quickly fix the compartment cover 6.

[0037] During disassembly, the insertion rod 56 retracts, the pull bracket 55 descends under gravity, the locking hook 53 separates from the locking plate 51, and the compartment cover 6 can be removed.

[0038] Example 2:

[0039] The difference from Embodiment 1 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiment, the pull frame 55 is inverted U-shape, with transmission blocks 551 on both sides of the top end, and the lower end extends to the bottom of the lock frame 52 and is movably connected to the upper end of the lock hook 54. Slide grooves 552 are opened on the opposite side walls of the lock frame 52. The lower section of the slide groove 552 is arc-shaped and the upper section extends vertically upward. The transmission blocks 551 are slidably installed in the slide grooves 552. The interior of the pull frame 55 is a transverse groove 553 for the insertion rod 56 to pass through.

[0040] In this embodiment of the application, an inclined guide surface 554 is provided on the top surface of the transverse groove 553 near one end of the telescopic control component 57.

[0041] In this embodiment of the application, the locking hook 53 includes a connecting section 531 and a locking section 532 that are perpendicular to each other. The connecting section 531 is vertically slidably mounted on the locking block 54 and slidably mounted in the transverse groove 553. The locking section 532 is fixed at the lower end of the connecting section 531 and extends toward the outer wall of the compartment 1. A vertical groove 534 is opened on the connecting section 531. A pull block 535 that slides with the vertical groove 534 is fixed at the lower end of the transverse groove 553.

[0042] like Figures 3 to 6 As shown, due to the aforementioned structure, the pull frame 55 is designed as an inverted U-shape. The transmission blocks 551 on both side walls are embedded in the sliding grooves 552 of the lock frame 52. The lower section of the sliding groove 552 is an arc-shaped groove with a radius of 15mm, and the upper section is a vertical groove with a length of 10mm, forming a "curved line followed by a straight line" motion trajectory. When the insert rod 56 extends and pushes the pull frame 55 to rise, the transmission block 551 first slides along the arc-shaped groove, causing the pull frame 55 to swing outward by 5°-10° to a position perpendicular to the center of the compartment 1 while rising. The axis drives the locking section 532 of the locking hook 53 to move along the outer wall of the compartment 1, accurately hooking the bottom surface of the locking plate 51. When the transmission block 551 enters the vertical groove, the design of the inclined guide surface 554 of the transverse groove 553 is crucial. When the pull frame 55 swings to the vertical, the outer end of the insertion rod 56 cooperates with the inclined guide surface 554, so that the pull frame 55 only makes a vertical upward movement, so as to drive the pull frame 55 to make a final upward movement, ensuring that the locking section 532 and the locking plate 51 are tightly fitted, avoiding the failure of the fastening due to insufficient displacement.

[0043] Ensure that the top surface of the locking section 532 fits tightly with the locking plate 51. The vertical groove 534 on the connecting section 531 of the hook 53 and the pull block 535 of the pull bracket 55 form a sliding pair. When the pull block 535 moves up and down with the pull bracket 55, it slides up and down in the vertical groove 534, which limits the horizontal displacement of the hook 53 and ensures that the locking surfaces of the locking section 532 and the locking plate 51 are always vertically aligned, which significantly improves the locking accuracy.

[0044] Example 3:

[0045] The difference from Embodiment 2 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiments, the locking block 54 is fixed at the bottom of the locking frame 52 and has an equilateral trapezoidal cross-section. The inner sidewall of the locking hook 53 is provided with a vertical sliding groove 536 that is adapted to the shape of the locking block 54. The locking block 54 slides in conjunction with the vertical sliding groove 536. An elastic element 7 is provided between the top of the locking block 54 and the bottom of the locking frame 52.

[0046] In this embodiment of the application, the elastic element 7 includes a blind hole 71 opened at the bottom end of the lock frame 52 and a plug 72 fixed at the top end of the lock hook 53. The plug 72 is slidably inserted into the blind hole 71 and has a spring at its top end.

[0047] like Figures 4 to 6 As shown, due to the above structure, the locking block 54 is fixed at the bottom of the locking frame 52, and its cross-section is an equilateral trapezoid. It cooperates with the trapezoidal vertical sliding groove 536 on the inner side of the locking hook 53 to form a guide sliding pair. The elastic element 7 includes a blind hole 71 at the bottom of the locking frame 52 and a post 72 at the top of the locking hook 53. A spring is provided at the top of the post 72.

[0048] When the locking hook 53 is engaged, the spring is compressed by 10-15mm, storing elastic potential energy. When unlocking, the spring releases the potential energy, assisting the locking hook 53 to descend quickly, avoiding unlocking difficulties caused by molten stickiness or component jamming. It is especially suitable for high-viscosity molten environments.

[0049] Example 4:

[0050] The difference from Embodiment 3 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the telescopic control component 57 includes a fixing block 571 fixed to the top of the cover 6. The peripheral wall of the fixing block 571 is provided with slots 572 for the inner end of the insertion rod 56 to slide. A rotating ring 573 is rotatably installed on the peripheral wall of the fixing block 571. Several through-hole fan-shaped grooves 574 are provided on the outer peripheral wall of the rotating ring 573. Arc grooves 575 are symmetrically provided on the upper and lower end surfaces of the fan-shaped grooves 574. The middle section of the insertion rod 56 is slidably installed in the corresponding fan-shaped groove 574 and is connected to each arc groove 575 by a push-pull slider.

[0051] like Figures 3 to 6 As shown, due to the above-mentioned structure, the telescopic control component 57 adopts a mechanical linkage design, including a fixed block 571, a rotating ring 573 and a fan-shaped groove 574 structure. The fixed block 571 is installed on the top of the cover 6, and radial sliding grooves 552 corresponding to the number of insertion rods 56 are opened on the peripheral wall. The fan-shaped grooves 574, which are the same as the number of locking units, are evenly distributed on the outer periphery of the rotating ring 573. The arc grooves 575 on the upper and lower end faces of the fan-shaped grooves 574 match the slider in the middle section of the insertion rod 56 to form a transmission mechanism.

[0052] When the rotating ring 573 is rotated clockwise, the arc groove 575 pushes the slider, causing the insertion rod 56 to extend outward along the slot 572, simultaneously driving all the pull brackets 55 to rise and lock. When the rotating ring 573 is rotated counterclockwise, the arc groove 575 pulls the slider, and the insertion rod 56 retracts to unlock. This structure can control all locking units with a single rotation operation, avoiding the asynchronous problem of traditional multi-point independent operation, ensuring that the cover 6 is subjected to uniform force, and preventing sealing failure due to local overload.

[0053] Two sockets are provided on the top surface of the swivel ring 573. The swivel ring 573 is rotated by engaging a handle with two prongs with a pair of sockets. After the swivel ring 573 has been rotated, the handle is removed to separate each prong from each socket.

[0054] Example 5:

[0055] The difference from Embodiment 4 is that, in addition to the structural features of the aforementioned embodiments, this embodiment also includes an upper annular groove 61 formed on the bottom surface of the cover 6 and a lower annular groove 62 formed on the top surface of the body 1. A lifting ring 63 is movably installed in the lower annular groove 62. The bottom of the lifting ring 63 is linked to each locking hook 53 through a linkage member 8. A sealing ring 64 is installed on the top surface of the lifting ring 63.

[0056] In this embodiment of the application, a sealing ring groove 65 is formed at the top of the lifting ring 63. Hydraulic oil is provided in the sealing ring groove 65 and the lifting shell 68 is slidably installed in a sealed manner. The sealing ring 64 is installed on the top surface of the lifting shell 68 through the annular mounting groove 66. The top of the lifting shell 68 is provided with a plurality of liquid outlet holes 67 that communicate with the annular mounting groove 66 at intervals. The longitudinal cross-sections of the sealing ring 64 and the annular mounting groove 66 are both inverted U-shapes.

[0057] In this embodiment of the application, the linkage 8 includes a lifting groove 81, which is disposed on the outer wall of the compartment 1 and the inner side of the lock plate 51. The top end of the lifting groove 81 is connected to the lower ring groove 62 through the connecting hole 82. A lifting block 83 is slidably installed in the lifting groove 81. The outer end of the lifting block 83 extends out of the lifting groove 81 to contact the lock hook 53, and the upper end is fixed to the bottom surface of the lifting ring 63 through the connecting rod 84.

[0058] like Figure 4 As shown, due to the above structure, the bottom surface of the cover 6 is provided with an upper annular groove 61, and the top surface of the body 1 is provided with a lower annular groove 62. The lifting ring 63 in the lower annular groove 62 is connected to the lifting block 83 through the connecting rod 84. The outer end of the lifting block 83 contacts the locking section 532 of the locking hook 53. The sealing ring 64 adopts an inverted U-shaped design and is installed in the annular mounting groove 66 on the top surface of the lifting ring 63. The sealing ring groove 65 is filled with hydraulic oil and communicates with the annular mounting groove 66 through the liquid outlet 67.

[0059] When the locking hook 53 rises and locks, it pushes the lifting block 83 to move upward along the lifting groove 81. This, in turn, drives the lifting ring 63 to rise via the connecting rod 84, causing the sealing ring 64 to fit tightly against the upper ring groove 61. At the same time, the lower end of the lifting shell 68 extends into the sealing ring groove 65, squeezing hydraulic oil through the outlet hole 67 into the annular mounting groove 66. This creates hydraulic pressure on the lip of the sealing ring 64, enhancing the sealing effect. This structure achieves the linkage of "mechanical locking - hydraulic sealing", and the sealing effect is significantly better than that of traditional mechanical seal structures.

[0060] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0061] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A filter chamber for a melt filter, comprising a chamber body with a pre-filter inlet and a post-filter outlet, characterized in that, It also includes an inclined partition plate disposed in the chamber, the inner end of the filtered outlet is connected to the lower end of the inclined partition plate, and the top of the chamber is detachably installed with a chamber cover through a quick-release structure. The quick-release structure includes several locking plates, several locking frames, several locking hooks, several locking blocks, several pull brackets, several insert rods and a telescopic control component. Each of the locking plates is fixedly fixed to the outer wall of the chamber at circumferential intervals, each of the locking frames is fixedly fixed to the outer ring of the chamber cover at circumferential intervals, each of the locking hooks is slidably installed on the corresponding locking block, and each pull bracket is movably installed in the locking frame, with its upper end connected to the locking frame and its lower end connected to the corresponding locking hook. Each of the insert rods is controlled to extend and retract through the telescopic control component, and the pull bracket is controlled to rise and fall, thereby locking / unlocking the locking hook with the lower end of the corresponding locking plate. It also includes an upper ring groove formed on the bottom surface of the bin cover and a lower ring groove formed on the top surface of the bin body. A lifting ring is movably installed in the lower ring groove. The bottom of the lifting ring is linked to each locking hook through a linkage component. A sealing ring is installed on the top surface of the lifting ring. A sealing ring groove is opened at the top of the lifting ring. Hydraulic oil is provided in the sealing ring groove and the lifting shell is slidably installed in a sealed manner. The sealing ring is installed on the top surface of the lifting shell through an annular mounting groove. Several liquid outlet holes communicating with the annular mounting groove are provided at intervals on the top of the lifting shell. The longitudinal cross-section of the sealing ring and the annular mounting groove are both inverted U-shape. The linkage includes a lifting groove, which is disposed on the outer wall of the compartment and the inner side of the lock plate. The top of the lifting groove is connected to the lower ring groove through a connecting hole. A lifting block is slidably installed in the lifting groove. The outer end of the lifting block extends out of the lifting groove to contact the lock hook, and the upper end is fixed to the bottom surface of the lifting ring through a connecting rod. The lock hook pushes the lifting block to move upward along the lifting groove.

2. The filter chamber of a melt filter according to claim 1, characterized in that, The pull frame is in the shape of an inverted U-shape, with transmission blocks on both sides of the top end. The lower end extends to the bottom of the lock frame and is movably connected to the upper end of the lock hook. Slide grooves are opened on the opposite side walls of the lock frame. The lower section of the slide groove is arc-shaped and the upper section extends vertically upward. The transmission blocks are slidably installed in the slide grooves. The interior of the pull frame is a transverse groove for inserting rods.

3. The filter chamber of a melt filter according to claim 2, characterized in that, The top surface of the transverse groove is provided with an inclined guide surface near one end of the telescopic control component.

4. The filter chamber of a melt filter according to claim 2, characterized in that, The locking hook includes a connecting section and a locking section that are perpendicular to each other. The connecting section is vertically slidably mounted on the locking block and slidably mounted in the transverse groove. The locking section is fixed at the lower end of the connecting section and extends toward the outer wall of the compartment. A vertical groove is opened on the connecting section, and a pull block that slides with the vertical groove is fixed at the lower end of the transverse groove.

5. The filter chamber of a melt filter according to claim 1, characterized in that, The locking block is fixed at the bottom of the lock frame and has an equilateral trapezoidal cross-section. The inner sidewall of the locking hook has a vertical sliding groove that conforms to the shape of the locking block. The locking block slides in conjunction with the vertical sliding groove. An elastic element is provided between the top of the locking hook and the bottom of the lock frame.

6. The filter chamber of a melt filter according to claim 5, characterized in that, The elastic element includes a blind hole at the bottom of the lock frame and a pin fixed to the top of the lock hook. The pin is slidably inserted into the blind hole and has a spring at its top.

7. The filter chamber of a melt filter according to claim 1, characterized in that, The telescopic control assembly includes a fixed block fixed to the top of the cover plate. The peripheral wall of the fixed block is provided with slots for the inner end of the insertion rod to slide. A rotating ring is rotatably installed on the peripheral wall of the fixed block. Several through-hole fan-shaped grooves are provided on the outer peripheral wall of the rotating ring. Arc grooves are symmetrically provided on the upper and lower end faces of the fan-shaped grooves. The middle section of the insertion rod is slidably installed in the corresponding fan-shaped groove and is connected to each arc groove through a push-pull slider.

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