A chain-type catcher

Abstract

The present invention relates to the technical field of collectors, specifically a chain-type collector, comprising a collection chamber provided with an air inlet and an air outlet, a partition plate vertically installed in the collection chamber, the partition plate dividing the collection chamber into a first flow channel and a second flow channel connected in series; the first flow channel and the second flow channel are both provided with a chain attachment component and a vibration enhancement component. The present invention provides a chain-type collection component in the first flow channel and the second flow channel to fully increase the attachment points of the crystals and effectively improve the collection rate; the chain end vibrates in a vertical reciprocating manner, on the one hand, so that the crystals are separated from the chain to achieve the purpose of automatic collection, and the vibration enhancement component is combined to automatically strengthen the vibration intensity of the chain so that the attached crystals are fully peeled off, and on the other hand, it is convenient for the chain to be quickly straightened, so that the chain is immediately in a stable crystallization replenishment state, effectively avoiding the influence of shaking inertia, and extending the time for the chain to recover to the working state of efficient crystallization capture.

Description

Technical Field

[0001] The present invention relates to the technical field of collectors, in particular to a chain-type collector. Background Art

[0002] Pyromellitic dianhydride (PMDA) is an important chemical raw material. It is a white crystal that is easy to sublime. Pyromellitic dianhydride is mainly used in the production of polymer materials such as polyimide. Its production process involves high-temperature gas-phase reaction or sublimation. This process will efficiently capture the solid PMDA crystal particles precipitated in the gas phase through a collector.

[0003] At present, the collector mainly adopts a fixed wall-type condensation collector (such as shell and tube type, tube-in-tube structure). The precipitated crystals will adhere to the inner wall of the collector. When a certain amount of crystals adhere, the crystals on the inner wall are vibrated to fall off, and then the crystals are collected and the above work is repeated. However, due to the limited area of ​​the crystal precipitation attachment point, the capture capacity per unit volume is limited, and it is difficult to further improve the capture rate. In addition, it is difficult for the wall vibration to fully detach the crystals, and the retention of crystals will directly reduce the capture rate of subsequent crystals, and then reduce the capture rate and capture efficiency of the equipment. Summary of the Invention

[0004] The present invention provides a chain collector, comprising a collecting chamber provided with an air inlet and an air outlet, wherein a partition plate is vertically installed in the collecting chamber, wherein the partition plate divides the collecting chamber into a first flow channel and a second flow channel connected in series; a chain attachment assembly and a vibration enhancement assembly are both provided in the first flow channel and the second flow channel; the chain attachment assembly comprises a top connecting frame, a bottom connecting frame and a plurality of chains vertically connected therebetween, at least one of the top connecting frame and the bottom connecting frame performs a lifting movement in a vertical direction so that the chain switches between straightening and relaxation, during which the chain vibrates, and after the chain is straightened, it is immediately in a stable state of capturing crystals; the vibration enhancement assembly comprises an elastic side thruster and an intermediate member: when the chain is in a vertically straightened state, the elastic side thruster is compressed and stores energy; during the collection process, at least one of the top connecting frame and the bottom connecting frame moves to relax the chain, and the elastic side thruster releases its elasticity to push the chain toward the intermediate member; the distance between each chain and the intermediate member is different, and each chain asynchronously hits the intermediate member and collides with each other, forming continuous vibration.

[0005] In one possible implementation, the elastic side thrust member is arranged to be inclined from top to bottom toward the middle member, the top connecting frame is arranged to be raised and lowered in the capture chamber along the vertical direction, the bottom connecting frame is fixedly installed in the capture chamber, and a limiting connecting member is connected between the chain and the bottom connecting frame. The limiting connecting member is fixedly connected to the chain and is connected to the bottom connecting frame in a vertical limit direction.

[0006] In one possible implementation, the elastic side thrust member includes a hinged rod and a roller with a circumferential groove. The hinged rod is inclined and elastically hinged. The roller is symmetrically arranged and rotatably installed at the lower end of the hinged rod. The corresponding chain is located between the symmetrically arranged rollers.

[0007] In one possible implementation, the vibration enhancement component also includes a mounting frame, the elastic side thrust member and the intermediate member are both mounted on the mounting frame, and the intermediate member is located in the middle of the mounting frame, an elastic member is connected between the intermediate member and the mounting frame, there are several elastic members and they are evenly divided into two groups that are symmetrical in the upper and lower directions, and each group of elastic members is connected to the intermediate member from at least four corner points.

[0008] In a possible implementation, the chains are divided into two rows, the middle piece is located between the two rows of chains, and the middle piece is arranged obliquely.

[0009] In one possible implementation, the intermediate member includes a first impact area and a second impact area. During chain relaxation, as the elastic side thrust member pushes sideways, the chain first contacts the first impact area, and then the elastic side thrust member contacts the second impact area.

[0010] In one possible implementation, the first impact area is located above the second impact area.

[0011] In a possible implementation, the elastic member located at the top is arranged to be inclined from top to bottom toward the middle member, and the elastic member located at the bottom is arranged to be inclined from bottom to top toward the middle member.

[0012] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: a chain-type collector provided by the embodiment of the present invention, by arranging a chain-type capturing component in the first flow channel and the second flow channel, fully increases the attachment points of the crystals and effectively improves the capturing rate; the chain end vibrates the chain in a vertical reciprocating motion, on the one hand, so that the crystals are separated from the chain to achieve the purpose of automatic collection, and combined with the vibration enhancement component to automatically enhance the vibration intensity of the chain, so that the attached crystals are fully peeled off, thereby improving the efficiency of crystal collection; on the other hand, it is convenient to quickly straighten the chain, so that the chain is immediately in a stable crystallization replenishment state, effectively avoiding the influence of shaking inertia, and extending the time for the chain to return to the efficient crystal capture working state, thereby effectively improving the capture rate and capture efficiency of the crystals as a whole; in addition, under the action of the vibration enhancement component, the chain will also asynchronously collide with the middleware to form continuous vibration, further increasing the vibration intensity of the chain and improving the efficiency of crystal capture. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a chain-type collector provided by an embodiment of the present invention.

[0014] Figure 2It is a partial cross-sectional structural schematic diagram of a chain-type collector provided by an embodiment of the present invention.

[0015] Figure 3 The diagram is a structural diagram of a top connecting frame, a bottom connecting frame and a chain of a chain-type collector provided by an embodiment of the present invention.

[0016] Figure 4 The present invention provides a schematic structural diagram of a chain-type catcher including a middle piece, a hinged rod, and a roller.

[0017] Figure 5 The figure is a schematic structural diagram of a chain and groove of a chain-type catcher provided by an embodiment of the present invention.

[0018] Figure 6 It is a structural schematic diagram of the first impact zone and the second impact zone of a chain-type collector provided by an embodiment of the present invention.

[0019] Figure 7 yes Figure 3 Schematic diagram of the enlarged structure of area A in the middle.

[0020] In the figure: 1. Air inlet; 2. Air outlet; 3. Capture chamber; 4. Partition partition; 5. Chain attachment assembly; 51. Top connecting frame; 52. Bottom connecting frame; 53. Chain; 54. Limiting connector; 6. Vibration enhancement assembly; 61. Elastic side thrust member; 611. Articulated rod; 612. Groove; 613. Roller; 62. Intermediate member; 621. First impact zone; 622. Second impact zone; 63. Mounting frame; 64. Elastic member; 7. Discharge port. DETAILED DESCRIPTION

[0021] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described below, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] See also Figure 1 、 Figure 2 and Figure 3A chain-type collector includes a collecting chamber 3 with an air inlet 1 on the left and an air outlet 2 on the right. A discharge port 7 is provided at the bottom of the collecting chamber 3. A partition plate 4 is vertically installed in the collecting chamber 3. The partition plate 4 divides the collecting chamber 3 into a first flow channel and a second flow channel. The airflow enters the collecting chamber 3 from the air inlet 1 on the left, then passes through the first flow channel from top to bottom, then enters the second flow channel, then passes through the second flow channel from bottom to top, and finally flows out from the air outlet 2. A chain attachment component 5 and a vibration enhancement component 6 are provided in both the first flow channel and the second flow channel. The chain attachment component 5 forms multiple crystal attachment lines in the collecting chamber 3, which fully increases the attachment of the crystals. point, improve the capture rate, and the chain attachment component 5 is combined with the vibration enhancement component 6 during the process of crystal shaking and collection, so that the crystals can quickly and fully break away from the attachment line, which is convenient for the collector to continuously and efficiently perform the capture work. Among them, the partition plate 4 is a double-layer design, and circulating cooling water is passed through the partition plate 4. A jacket is provided on the outside of the capture chamber 3, and circulating cooling water is passed through the jacket. After the air flow enters the capture chamber 3, it is condensed into a crystalline state on the chain 53 under the action of cooling water. After the crystals reach a certain amount, they are shaken to the bottom of the capture chamber 3 and can be discharged from the discharge port 7. Some crystals adhere to the inner wall of the capture chamber 3, which can be separated by arranging a vibrator outside the container.

[0023] See Figure 2 and Figure 3 The chain attachment assembly 5 includes a top connecting frame 51, a bottom connecting frame 52 and multiple chains 53 vertically connected therebetween. The top connecting frame 51 is vertically raised and lowered in the capturing chamber 3, and the bottom connecting frame 52 is fixedly installed in the capturing chamber 3. During the capturing process, the chains 53 are in a vertically tightened state. During the crystal collection process, the top connecting frame 51 moves back and forth in the vertical direction, causing the chains 53 to vibrate and collide with the bottom connecting frame 52, so that the crystals on the attachment line are detached. After the crystal collection is completed, the top connecting frame 51 is reset, so that the chains 53 can be tightened and quickly and stably restored to the state of vertically collecting crystals.

[0024] See Figure 2 、 Figure 3 、 Figure 4 and Figure 6The vibration enhancement component 6 includes an elastic side thrust member 61, an intermediate member 62 and a mounting frame 63. The mounting frame 63 is fixedly installed in the middle of the capture chamber 3. The elastic side thrust member 61 corresponds to the chain 53 one by one and is installed on the mounting frame 63. The elastic side thrust member 61 is tilted from top to bottom toward the middle of the mounting frame 63. When the chain 53 is in a vertically straightened state, the elastic side thrust member 61 is compressed and stores energy. When the top connecting frame 51 moves downward to relax the chain 53, the chain 53 is under the action of gravity. The chains 53 will gather downwards, and the elastic side pusher 61 will release the elastic force and push the chain 53 towards the position of the middle piece 62, so that the chains 53 gather in the middle and collide with each other, increasing the vibration intensity of the chain 53. The distance between each chain 53 and the middle piece 62 is different. Each chain 53 will asynchronously hit the middle piece 62 and collide with each other, forming a continuous vibration state, so that the crystals are fully separated from the chain 53, improving the crystal collection rate, and thus improving the continuous capture effect and efficiency of the collector. Figure 3 、 Figure 4 and Figure 6 The chains 53 are divided into two rows, the middle piece 62 is located between the two rows of chains 53 and is arranged obliquely, and the straight-line distances between the middle piece 62 and each chain 53 are not equal.

[0025] See Figure 3 、 Figure 4 and Figure 5 The elastic side thrust member 61 includes a hinge rod 611 and a roller 613 with a groove 612 arranged circumferentially. The upper end of the hinge rod 611 is hingedly connected to the mounting frame 63. The rollers 613 are symmetrically arranged and rotatably mounted on the lower end of the hinge rod 611. The corresponding chains 53 are located between the symmetrically arranged rollers 613. Figure 5 As shown, the chain 53 is located between the grooves 612 on the symmetrical rollers 613. The symmetrical grooves 612 limit the chain 53 to prevent the chain 53 from separating from the rollers 613. During the vibration process, the chain 53 can also flexibly gather downward.

[0026] See Figure 4 The middle piece 62 is installed in the middle of the mounting frame 63, and an elastic piece 64 is connected between the middle piece 62 and the inner wall of the mounting frame 63. The number of elastic pieces 64 is 8 and they are evenly divided into two groups and symmetrically distributed up and down. Each group of elastic pieces 64 is connected to the middle piece 62 from two corner points on the left and two corner points on the right, respectively. Among them, the elastic piece 64 located above is tilted from top to bottom toward the middle piece 62. Similarly, the elastic piece 64 located below is tilted from bottom to top toward the middle piece 62.

[0027] See Figure 3 and Figure 7A limiting connector 54 is connected between the chain 53 and the bottom connecting frame 52. The limiting connector 54 is fixedly connected to the chain 53 and is vertically limited to the bottom connecting frame 52. When the chain 53 relaxes and gathers downward, the limiting connector 54 moves downward and separates from the bottom connecting frame 52. The lower end of the chain 53 loses its rigid constraint. During the vibration of the chain 53, the lower end of the chain 53 will undergo a certain swinging motion under the action of inertia. This swing further increases the multi-directionality of the overall vibration of the chain 53 on the vibration of the main body of the chain 53, and more effectively promotes the peeling of the attached crystals. When the chain 53 moves up and is tightened, the limiting connector 54 moves up and rests against the bottom end of the bottom connecting frame 52.

[0028] See Figure 4 and Figure 6 The middle piece 62 includes a first impact area 621 and a second impact area 622. The first impact area 621 is located above the second impact area 622. The first impact area 621 is an arc-shaped structure, and the second impact area 622 is a plane structure. During the relaxation of the chain 53, as the elastic side pusher 61 pushes sideways, the chain 53 first collides with the first impact area 621 and vibrates once. Immediately afterwards, the elastic side pusher 61 collides with the second impact area 622, and the chain 53 generates a secondary vibration, which further fully separates the crystal from the chain 53.

[0029] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, integral or sliding connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A chain-type collector, comprising a collecting chamber provided with an air inlet and an air outlet, wherein a partition plate is vertically installed in the collecting chamber, characterized in that: The partition plate divides the collecting chamber into a first flow channel and a second flow channel connected in series; A chain attachment assembly and a vibration enhancement assembly are provided in both the first flow channel and the second flow channel; The chain attachment assembly includes a top connecting frame, a bottom connecting frame, and a plurality of chains vertically connected therebetween. At least one of the top connecting frame and the bottom connecting frame is vertically movable up and down, so that the chain switches between straightening and relaxing. The chain vibrates during the switching period, and after the chain is straightened, it immediately enters a stable state for capturing crystals. The vibration enhancement component includes an elastic side thrust member and an intermediate member: When the chain is in a vertically straightened state, the elastic side thrust member is compressed to store energy; During the collection process, at least one of the top connecting frame and the bottom connecting frame moves to relax the chain, and the elastic side pusher releases its elasticity to push the chain toward the middle member; The distance between each chain and the middleware is different. Each chain hits the middleware asynchronously and collides with each other, forming continuous vibration.

2. The chain-type catcher according to claim 1, characterized in that: The elastic side thrust piece is arranged to be inclined from top to bottom toward the middle piece, the top connecting frame is arranged to be lifted and lowered in the capture chamber along the vertical direction, the bottom connecting frame is fixedly installed in the capture chamber, a limiting connecting piece is connected between the chain and the bottom connecting frame, the limiting connecting piece is fixedly connected to the chain and is connected to the bottom connecting frame in a vertical limit direction.

3. A chain-type collector according to claim 1 or 2, characterized in that: The elastic side thrust member includes a hinged rod and a roller with a circumferential groove. The hinged rod is inclined and elastically hinged. The rollers are symmetrically arranged and rotatably installed at the lower end of the hinged rod. The corresponding chains are located between the symmetrically arranged rollers.

4. The chain-type catcher according to claim 1, characterized in that: The vibration enhancement component also includes a mounting frame, the elastic side thrust member and the middle member are both mounted on the mounting frame, and the middle member is located in the middle of the mounting frame. An elastic member is connected between the middle member and the mounting frame. There are several elastic members and they are evenly divided into two groups that are symmetrical in the upper and lower directions. Each group of elastic members is connected to the middle member at least from four corner points.

5. The chain-type catcher according to claim 1, characterized in that: The chains are divided into two rows, and the middle piece is located between the two rows of chains and is arranged obliquely.

6. A chain-type catcher according to any one of claims 1, 4 or 5, characterized in that: The intermediate member includes a first impact area and a second impact area. During the chain relaxation process, as the elastic side push member pushes sideways, the chain first contacts the first impact area, and then the elastic side push member contacts the second impact area.

7. The chain-type catcher according to claim 6, characterized in that: The first impact area is located above the second impact area.

8. The chain-type catcher according to claim 4, characterized in that: The elastic member located at the top is arranged to be inclined from top to bottom toward the middle member, and the elastic member located at the bottom is arranged to be inclined from bottom to top toward the middle member.

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