A spherical catalyst carrier screening device

Abstract

The present invention relates to the technical field of catalyst processing, and particularly to a spherical catalyst carrier screening device, which includes a frame, a screening mechanism, a driving part and a storage bin. In the present invention, there is always relative movement between two rubbing bars corresponding to the same screening channel. Through the relative movement process of the two, it assists the feeding of catalyst carriers, avoiding the problem that some catalyst carriers cannot be fed due to excessive friction between them and the inner wall of the screening channel because their sizes are the same as those of the screening channel. At the same time, the height of the catalyst carriers during the feeding process is controlled by the lower pressing plate to avoid the problem of catalyst carrier accumulation. At the same time, the carrier is rubbed back and forth left and right to assist the feeding. After being locked by the assembly unit, the required number of screening channels are formed, and all screening channels form a set multi-stage screening, which improves the screening effect and can be integrally assembled, improving the convenience and practicability of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of catalyst processing, and in particular to a spherical catalyst carrier screening device. Background Art

[0002] Spherical catalyst carriers are materials widely used in the chemical industry, mainly used to support active catalytic components. They are usually made of materials with high specific surface area, good stability and mechanical strength, such as alumina, silica and zeolite, etc. Spherical catalyst carriers come in different sizes after production. In order to ensure the consistency of particle size, it is necessary to screen the spherical catalyst carriers during the manufacturing process to ensure that the size of the final product meets the specification requirements.

[0003] Currently, when screening spherical catalyst carriers, mainly methods such as vibrating screening, centrifugal screening, sieving method screening, ultrasonic screening and mechanical screening using existing mechanical equipment are used. Among them, due to the spherical characteristics of spherical catalyst carriers, in the existing mechanical screening process, multiple different inclined guide rails form a multi-stage screening channel, and all screening channels form an overall screening flow path. The screening sizes of the screening channels increase sequentially from top to bottom. The existing spherical separator is used to sequentially transport spherical catalyst carriers into the screening flow path for screening, and the catalyst carriers screened out in each screening channel are collected separately.

[0004] For the above screening process, the following problems exist: when the ball diameter size of the spherical catalyst carrier is the same as the formed screening channel, it is easy to have the problem of the carrier getting stuck in the screening channel, which affects the feeding process in this screening channel. At the same time, due to the carrier getting stuck and not moving, there is a problem of accumulation between carriers, which affects the feeding process of all carriers. Secondly, the screening channels in the current screening flow path are all fixedly arranged, so the overall screening size specifications that can be carried out are relatively fixed, and it is difficult to adapt to different screening situations, with relatively large overall limitations. Summary of the Invention

[0005] Based on this, it is necessary to provide a spherical catalyst carrier screening device, aiming to solve the problems of the above-mentioned existing technologies.

[0006] The present application provides a screening device for spherical catalyst carriers, which is used in combination with existing spherical separators or spherical distributors. The spherical separator uniformly conveys spherical catalysts into the screening device. The screening device includes: a frame. The number of the frames is two. A screening mechanism is jointly arranged between the two frames. The screening mechanism includes a main body frame. A plurality of main body frames are inclined downward from right to left between the two frames. Fixed-distance frames are arranged on the front and rear sides of the main body frame. A screening channel is jointly formed between the main body frame and the fixed-distance frame. An assembly unit is jointly arranged between the two frames. The distance between the fixed-distance frame and the main body frame is adjusted through the assembly unit to form multi-stage screening with the screening intervals increasing from top to bottom, and the main body frame and the fixed-distance frame are locked.

[0007] A driving part is arranged on the main body frame. After the assembly unit is locked, all the driving parts are serially locked. A rubbing part for assisting the movement of the catalyst is jointly arranged between the main body frame and the fixed-distance frame. The rubbing part includes two rubbing bars opposite to each other in the front and rear. The operation of the driving part makes the corresponding two rubbing bars reciprocate relative to each other along the length direction of the main body frame and rub the carriers during the movement to discharge the materials.

[0008] Two symmetric storage bins are installed on the lower side of the main body frame in the front and rear.

[0009] According to a preferred embodiment, the assembly unit includes assembly columns. The lower left ends of the main body frames are rotatably provided with assembly columns whose axes are perpendicular to the lower end faces of the main body frames. Two symmetric rib plates for plug-in assembly are fixedly arranged at the lower left ends of the main body frames. A Z-shaped frame is fixedly arranged at the lower right end of the main body frame. A first plug-in slot corresponding to the rib plate and a second plug-in slot for plugging and matching with the assembly column are respectively opened on the horizontal inclined section on the upper side of the Z-shaped frame.

[0010] According to a preferred embodiment, the assembly unit further includes a locking plate. The locking plate is arranged on the lower side of the main body frame and slidably sleeved on all the assembly columns. A nut for locking the main body frame is threadedly installed at the lower end of the assembly column. A convex-shaped frame corresponding to the assembly column is fixedly arranged on the locking plate. A pressing cylinder for pressing against the Z-shaped frame is fixedly arranged on the convex-shaped frame.

[0011] According to a preferred embodiment, the assembly unit further includes horizontal rods. Two horizontal rods whose axes extend from front to back and are distributed left and right are fixedly arranged on the front and rear sides of the main body frame. The fixed-distance frame is slidably sleeved on the corresponding two horizontal rods in the front and rear. Two plug-in rods are slidably arranged on the front and rear horizontal sections of the convex-shaped frame in the front and rear. A plurality of equally spaced fixed-distance slots are opened on the horizontal rods. The plug-in rods penetrate through the corresponding fixed-distance frames and are inserted into the fixed-distance slots to lock the width of the screening channel.

[0012] According to a preferred embodiment, the right frame is fixedly provided with a mounting member 1 identical to the rib plate and a mounting member 2 identical to the assembly column, the mounting member 1 cooperates with the adjacent plug-in slot 1, and the left frame is fixedly provided with a mounting member 3 identical to the Z-shaped frame.

[0013] According to a favorable embodiment, the driving part includes a rotating shaft, and there are two rotating shafts distributed on the left and right and with axes perpendicular to the upper and lower end surfaces of the main frame. The right rotating shaft on the main frame passes through the corresponding Z-shaped frame, and the left rotating shaft passes through the adjacent Z-shaped frame on its left. The two rotating shafts on the same main frame are transmitted by a sprocket chain, and a rotating sleeve is provided on the horizontal inclined section on the lower side of the Z-shaped frame. The rotating sleeve and the corresponding rotating shaft on the Z-shaped frame are also transmitted by a sprocket chain. A clamping groove is provided on the rotating shaft on the left side of the main frame, and a clamping block that cooperates with the clamping groove is fixed on the rotating sleeve.

[0014] According to a favorable embodiment, the rubbing part also includes a sliding block, and the upper end surfaces of the main frame and the distance frame are both provided with sliding blocks for sliding along their length directions. A reset spring is fixedly provided between the sliding block and the main frame or the distance frame, and the corresponding two rubbing bars are respectively fixedly provided on the opposite surfaces of the corresponding two sliding blocks, and the opposite surfaces of the two rubbing bars are both arc-shaped surfaces.

[0015] According to a favorable embodiment, the rubbing part also includes an L-shaped frame, the upper end surface of the sliding block on the fixed distance frame is fixedly provided with the L-shaped frame, the horizontal section of the L-shaped frame is provided with a lower pressure rod that slides up and down along its vertical section, and the lower end surface of the lower pressure rod is fixedly provided with a lower pressure plate, and the lower pressure plate is divided into an inclined section and a horizontal section from right to left, the inclined section is inclined downward from right to left, and the horizontal section is parallel to the fixed distance frame, and a pressure spring is fixedly provided between the lower pressure plate and the L-shaped frame.

[0016] According to a favorable embodiment, the driving part also includes a toggle bar, the rotating shaft on the right side of the main frame passes through the main frame and the fixed sleeve is provided with an installation sleeve, the circumferential surface of the installation sleeve is fixedly provided with two groups of bar groups staggered up and down, the bar group includes a plurality of circumferentially distributed toggle bars, and the toggle bars in the upper and lower bar groups are staggered in the circumferential direction, and the sliding blocks on the L-shaped frame and the main frame are fixedly provided with matching plates, and the two matching plates are respectively in contact with and matched with the toggle bars in the two bar groups.

[0017] According to an advantageous embodiment, the distance frame is provided with two blocking plates distributed left and right and slidingly arranged toward the end face of the main frame.

[0018] In summary, the present invention includes at least one of the following beneficial effects: First, there is always relative movement between the two rubbing bars corresponding to the same screening channel in the present invention. Through the relative movement process of the two, it assists in the feeding of the catalyst carrier, avoiding the problem that some catalyst carriers cannot be fed due to excessive friction between them and the inner wall of the screening channel because their sizes are the same as those of the screening channel. At the same time, the height of the catalyst carrier during the feeding process is controlled by the lower pressing plate to avoid the problem of catalyst carrier accumulation. At the same time, the carrier is reciprocated left and right to assist in feeding.

[0019] Second, in the present invention, the insertion rod is matched with the fixed-distance grooves at different positions to adapt to different screening size requirements. Secondly, the number of required main frames is set according to the types of sizes to be screened for the catalyst. After being locked by the assembly unit, the required number of screening channels is formed, and all the screening channels form a set multi-stage screening. While improving the screening effect, it can be assembled integrally, improving the convenience and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] Figure 1 FIG. 1 shows a schematic structural diagram of a spherical catalyst carrier screening device according to an embodiment of the present invention.

[0022] Figure 2 FIG. 2 shows a partial structural diagram of a spherical catalyst carrier screening device according to an embodiment of the present invention.

[0023] Figure 3 FIG. 3 shows a front view of a partial structure of a spherical catalyst carrier screening device according to an embodiment of the present invention.

[0024] Figure 4 FIG. 4 shows a partial sectional three-dimensional schematic diagram of a spherical catalyst carrier screening device according to an embodiment of the present invention.

[0025] Figure 5 FIG. 5 shows an exploded view of a mounting member 1, a Z-shaped frame and a locking plate according to an embodiment of the present invention.

[0026] Figure 6 FIG. 6 shows a three-dimensional structural diagram of a main frame, a fixed-distance frame and a Z-shaped frame according to an embodiment of the present invention.

[0027] Figure 7 The embodiment of the present invention provides Figure 6 Enlarged view of point A in the middle.

[0028] Figure 8 A schematic diagram of the three-dimensional structure between the lower pressing plate, the L-shaped frame and the rubbing bar provided according to an embodiment of the present invention is shown.

[0029] Figure 9 The embodiment of the present invention provides Figure 8 Enlarged view of point B in the middle.

[0030] The above drawings include the following reference numerals: 1, frame; 2, screening mechanism; 20, main frame; 21, distance frame; 22, screening channel; 23, assembly unit; 230, assembly column; 231, rib plate; 232, Z-shaped frame; 233, plug-in slot 1; 234, plug-in slot 2; 235, locking plate; 236, nut; 237, convex frame; 238, tightening cylinder; 240, horizontal rod; 241, plug-in rod; 242, distance slot; 24 3. Mounting part 1; 244. Mounting part 2; 245. Mounting part 3; 25. Driving part; 250. Rotating shaft; 251. Rotating sleeve; 252. Snap-in groove; 253. Snap-in block; 254. Toggle bar; 255. Matching plate; 26. Rubbing part; 260. Rubbing bar; 261. Sliding block; 262. Return spring; 263. L-shaped frame; 264. Pressing rod; 265. Pressing plate; 266. Pressure spring; 27. Storage bin; 28. Sealing plate. DETAILED DESCRIPTION

[0031] 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 herein, 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.

[0032] like Figure 1 and Figure 2 As shown, a spherical catalyst carrier screening device is used in combination with an existing spherical separator or spherical distributor. The spherical separator evenly transports the spherical catalyst carrier into the screening device (the spherical catalyst carrier enters the screening device in sequence). The screening device includes: Figure 1 、 Figure 2 and Figure 3As shown, there is a frame 1, and the number of the frames 1 is two. A screening mechanism 2 is jointly arranged between the two frames 1. The screening mechanism 2 includes a main body frame 20. A plurality of main body frames 20 are inclined and arranged downward from right to left between the two frames 1 in sequence. Fixed-distance frames 21 are arranged on the front and rear sides of the main body frame 20. The main body frame 20 and the corresponding two fixed-distance frames 21 jointly form two symmetrically arranged front and rear screening channels 22. An assembly unit 23 is jointly arranged between the two frames 1. The distance between the fixed-distance frame 21 and the main body frame 20 is adjusted through the assembly unit 23, forming a multi-stage screening with an increasing screening spacing while adjusting the required screening size, and locking the main body frame 20 and the fixed-distance frame 21. As Figure 2 shown, in order to prevent the catalyst carrier from falling during the screening process and when entering the next screening channel 22, two left-right distributed plugging plates 28 are slidably arranged on the front and rear end faces of the fixed-distance frame 21 facing the main body frame 20.

[0033] As Figure 1 、 Figure 2 and Figure 8 shown, a driving part 25 is arranged on the main body frame 20. After the assembly unit 23 is locked, all the driving parts 25 are locked in series. A rubbing part 26 for assisting the movement of the catalyst carrier is jointly arranged between the main body frame 20 and the fixed-distance frame 21. The rubbing part 26 includes two relatively arranged front and rear rubbing bars 260. The driving part 25 operates to make the corresponding two rubbing bars 260 move relatively back and forth along the length direction of the main body frame 20.

[0034] As Figure 1 shown, two symmetrically arranged front and rear storage bins 27 for storing carriers of corresponding sizes are installed on the lower side of the main body frame 20.

[0035] It should be noted that the number of the required main body frames 20 is set according to the types of sizes required for screening the catalyst carrier, and the corresponding fixed-distance frames 21 are selected and adapted. The number of screening channels 22 corresponding to different sizes is also determined.

[0036] During operation, first, the selected fixed-distance frames 21 are assembled in sequence through the assembly unit 23 and installed between the two frames 1. Then, all the fixed-distance frames 21 are assembled and the distance between the fixed-distance frame 21 and the corresponding main body frame 20 is adjusted, that is, the width of the screening channel 22 is controlled to be the set value (when the ball diameter of the catalyst carrier is smaller than the width of the corresponding screening channel 22, the catalyst carrier passes through this screening channel 22). Finally, all the main body frames 20 and the fixed-distance frames 21 are locked through the assembly unit 23. Thus, a screening flow path formed by a plurality of screening channels 22 is formed from right to left (refer to Figure 2 、 Figure 3 、 Figure 4The moving path of the catalyst carrier in the middle), the screening sizes of the screening flow paths increase sequentially from right to left. While completing the above assembly, the storage bins 27 corresponding to each section of the screening channel 22 are installed below the corresponding screening channel 22.

[0037] After that, the spherical distributor sequentially distributes all the catalyst carriers to be screened one by one by pieces and enters the rightmost side of the screening flow path through the guiding plate. The catalyst carriers freely move downward along the direction of the screening flow path. During the movement, when the ball diameter of the catalyst carrier is smaller than the width of the screening channel 22 it passes through, the catalyst carrier falls into the corresponding storage bin 27 through the screening channel 22, thereby screening out the catalyst carriers with different ball diameters. Finally, the catalyst carriers with different ball diameters are manually taken out from different storage bins 27 respectively, and thus the screening operation is completed.

[0038] It should be additionally noted that during the above assembly process, the driving parts 25 are assembled in series and integrally locked by the assembly unit 23, and the driving parts 25 are connected to the existing external driving technology, such as a servo motor, etc. Driven by the existing driving technology, all the driving parts 25 cause the two rubbing bars 260 opposite to each other front and back to reciprocate left and right, and the moving directions of the corresponding two rubbing bars 260 are opposite, thereby rubbing the catalyst carriers located between them to assist the catalyst carriers to move downward for discharging, and avoiding problems such as blockage and jamming that affect the screening operation.

[0039] Such as Figure 2 、 Figure 5 and Figure 6 As shown, the assembly unit 23 includes an assembly column 230. Assembly columns 230 with axes perpendicular to the lower end surface of the main body frame 20 are rotatably provided at the lower left ends of the main body frame 20. Two rib plates 231 that are symmetric front and back and used for plug-in assembly are fixedly provided at the lower left end of the main body frame 20. A Z-shaped frame 232 is fixedly provided at the lower right end of the main body frame 20. A plug-in slot one 233 corresponding to the rib plate 231 and a plug-in slot two 234 for plugging and cooperating with the assembly column 230 are respectively provided on the horizontal inclined section on the upper side of the Z-shaped frame 232.

[0040] Such as Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the assembly unit 23 further includes a locking plate 235. The locking plate 235 is provided below the main body frame 20. The locking plate 235 is slidably sleeved on all the assembly columns 230. A nut 236 for locking the main body frame 20 is threadedly installed at the lower end of the assembly column 230. A convex frame 237 corresponding to the assembly column 230 is fixedly provided on the locking plate 235. A tightening cylinder 238 for pressing against the Z-shaped frame 232 is fixedly provided on the convex frame 237.

[0041] Such as Figure 2 、Figure 3 , Figure 5 , Figure 6 and Figure 9 As shown in Figure 6 and Figure 9 , the assembly unit 23 further includes a horizontal rod 240. Two horizontal rods 240 which are distributed left and right and whose axes extend from front to back are fixedly arranged on both the front and rear sides of the main body frame 20. The fixed-distance frame 21 is slidably sleeved on the corresponding two horizontal rods 240 in the front and rear directions. Two insertion rods 241 are slidably arranged on the front and rear horizontal sections of the convex-shaped frame 237 in the front and rear directions. In order to adapt to the screening requirements of different sizes and scales and to fix the screening size, a plurality of fixed-distance slots 242 which are arranged at equal intervals in the front and rear directions are provided on the horizontal rod 240. The insertion rods 241 penetrate through the corresponding fixed-distance frame 21 and then are inserted into the fixed-distance slots 242 to lock the width of the screening channel 22.

[0042] First, select the required number of main body frames 20 and fixed-distance frames 21 according to the requirements of the screening grade and assemble them. The specific assembly process between two adjacent main body frames 20 is as follows: Manually move the main body frame 20 set on the left closer to the main body frame 20 on the right. Initially, make the main body frame 20 on the left be located below the main body frame 20 on the right. Move the main body frame 20 on the left so that the rib plate 231 on the right main body frame 20 is inserted into the first insertion slot 233 on the left Z-shaped frame 232. Through the cooperation and guidance between the rib plate 231 and the first insertion slot 233, the moving direction of the main body frame 20 on the left is guided and limited. When the two main body frames 20 are in close contact, the second insertion slot 234 moves to the lower part of the corresponding assembly column 230 and they are opposite to each other. Then move the main body frame 20 on the left so that the assembly column 230 on the right main body frame 20 penetrates through the second insertion slot 234 on the corresponding Z-shaped frame 232 to complete the preliminary docking between the two main body frames 20. Then repeat the above operation to assemble all the main body frames 20. It should be noted additionally that the connection process between the main body frame 20 and the frame 1 is the same as above.

[0043] Among them, the rib plate 231 not only guides the docking process of the two main body frames 20, but also improves the strength of the two main body frames 20 after assembly when the rib plate 231 is clamped into the corresponding first insertion slot 233.

[0044] After manually moving the locking plate 235, the locking plate 235 drives the convex frame 237 and the abutting cylinder 238 thereon to be sleeved and installed on the assembly column 230. Continuously move the locking plate 235 until all the abutting cylinders 238 respectively abut against the frame 1 and all the main frames 20. Secondly, during the continuous movement of the locking plate 235, according to the screening width of the required screening channel 22, after sleeving the distance-determining frame 21 on the corresponding two horizontal rods 240, move the distance-determining frame 21 back and forth so that the distance between the distance-determining frame 21 and the corresponding main frame 20 is the required set screening width. At the same time, manually adjust the corresponding insertion rod 241 so that the insertion rod 241 is opposite to the distance-determining groove 242 at the corresponding position. Then, as the locking plate 235 continues to move upward, the locking plate 235 drives the convex frame 237 and the insertion rod 241 to move upward. The insertion rod 241 moves upward through the distance-determining frame 21 and the distance-determining groove 242 described above, locking the width spacing between the main frame 20 and the distance-determining frame 21. Finally, manually tighten the nut 236 onto the assembly column 230, ultimately integrally locking all the main frames 20, the frame 1, and the distance-determining frame 21. The screening spacings of the multiple screening channels 22 in the formed screening flow path are arranged in the set order and the sizes of the screening spacings are all set values.

[0045] As Figure 4 and Figure 5 shown, on the right side of the frame 1, a first mounting member 243 identical to the rib plate 231 and a second mounting member 244 identical to the assembly column 230 are fixedly arranged. The first mounting member 243 cooperates with the adjacent first insertion slot 233, and the second mounting member 244 and the assembly column 230 also play an assembly role. On the left side of the frame 1, a third mounting member 245 identical to the Z-shaped frame 232 is fixedly arranged, and the third mounting member 245 cooperates with the adjacent rib plate 231 and the assembly column 230.

[0046] During the assembly process, the first mounting member 243 on the right side is identical to the rib plate 231 and cooperates with the first insertion slot 233 on the Z-shaped frame 232 of the rightmost main frame 20. The second mounting member 244 has the same function as the assembly column 230, penetrates the Z-shaped frame 232, and the locking plate 235 is sleeved and installed on the second mounting member 244. The third mounting member 245 is used for docking and installing with the assembly column 230 and the rib plate 231 of the leftmost main frame 20. Finally, all the main frames 20 are installed between the two frames 1 and locked.

[0047] As Figure 2 , Figure 6 and Figure 7As shown, the driving part 25 includes a rotating shaft 250. Two rotating shafts 250 are rotatably penetrated through the main body frame 20 and are distributed left and right, and the axes of the rotating shafts are perpendicular to the upper and lower end faces of the main body frame 20. The right rotating shaft 250 on the main body frame 20 penetrates through the corresponding Z-shaped frame 232, and the left rotating shaft 250 penetrates through the Z-shaped frame 232 adjacent to its left side. The two rotating shafts 250 on the same main body frame 20 are driven by a sprocket chain. A rotating sleeve 251 is rotatably sleeved on the horizontal inclined section on the lower side of the Z-shaped frame 232, and the rotating sleeve 251 and the corresponding rotating shaft 250 on the Z-shaped frame 232 are also driven by a sprocket chain. A clamping groove 252 is formed on the left rotating shaft 250 on the main body frame 20, and a clamping block 253 matched with the clamping groove 252 is fixedly arranged on the rotating sleeve 251.

[0048] During the above assembly process, when the Z-shaped frame 232 is penetrated and installed onto the corresponding assembly column 230, when the Z-shaped frame 232 is butted against the adjacent assembly column 230, the rotating sleeve 251 on the Z-shaped frame 232 is opposite to the corresponding rotating shaft 250. Therefore, as the Z-shaped frame 232 is penetrated and installed onto the assembly column 230, the rotating sleeve 251 is installed onto the corresponding rotating shaft 250, and the clamping block 253 on the rotating sleeve 251 is snapped into the corresponding clamping groove 252. Thus, the docking between the rotating shaft 250 and the rotating sleeve 251 is completed. After the docking process of all the main body frames 20 is completed, the driving part 25 is also integrally assembled and locked.

[0049] As Figure 2 、 Figure 8 and Figure 9 shown, the rubbing part 26 further includes a sliding block 261. Sliding blocks 261 are slidably arranged along the length direction on the upper end faces of the main body frame 20 and the fixed-distance frame 21. A return spring 262 is fixedly arranged between the sliding block 261 and the main body frame 20 or the fixed-distance frame 21. The corresponding two rubbing strips 260 are respectively fixedly arranged on the opposite faces of the corresponding two sliding blocks 261. The opposite faces of the two rubbing strips 260 are both arc-shaped surfaces. It should be noted that, due to the need to form a stepped screening, the adjacent two fixed-distance frames 21 are staggered front and back. Therefore, the adjacent two rubbing strips 260 are also staggered to avoid the problem of jamming when the rubbing strips 260 reciprocate.

[0050] As Figure 2 and Figure 8As shown, the rubbing portion 26 also includes an L-shaped frame 263, and the upper end surface of the sliding block 261 on the distance frame 21 is fixedly provided with an L-shaped frame 263, and a lower pressure rod 264 is provided on the horizontal section of the L-shaped frame 263 to slide up and down along its vertical section, and a lower pressure plate 265 is fixedly provided on the lower end surface of the lower pressure rod 264, and the lower pressure plate 265 is divided into an inclined section and a horizontal section from right to left, and its inclined section is inclined downward from right to left, and the horizontal section is parallel to the distance frame 21, and a pressure spring 266 is fixedly provided between the lower pressure plate 265 and the L-shaped frame 263, and a rib for improving the overall strength is fixedly provided between the lower pressure plate 265 and the lower pressure rod 264.

[0051] like Figure 2 、 Figure 8 and Figure 9 As shown, the driving part 25 also includes a toggle bar 254. The rotating shaft 250 on the right side of the main frame 20 passes through the main frame 20 and the fixed sleeve is provided with an installation sleeve. The circumferential surface of the installation sleeve is fixedly provided with two groups of bar groups staggered up and down. The bar group includes a plurality of circumferentially distributed toggle bars 254, and the toggle bars 254 in the upper and lower bar groups are staggered in the circumferential direction. The L-shaped frame 263 and the sliding block 261 on the main frame 20 are fixedly provided with matching plates 255. The two matching plates 255 are respectively in contact with and matched with the toggle bars 254 in the two bar groups. In order to improve the stability of the two adjacent matching plates 255 during the reciprocating movement, the two adjacent matching plates 255 are connected by sliding left and right.

[0052] During screening operations, the catalyst carrier enters the screening channel 22, and the inclined section of the lower pressure plate 265 facilitates the catalyst carrier to roll along the screening channel 22. The distance between the horizontal section of the lower pressure plate 265 and the screening channel 22 is a set value, thereby controlling the height of the catalyst carrier during rolling, ensuring that the catalyst carrier can move downward evenly, and avoiding the problem of multiple catalyst carriers stacking to affect screening. The set pressure spring 266 makes the height control process of the lower pressure plate 265 an elastic operation process, avoiding the problem of the catalyst carrier being stuck between the lower pressure plate 265 and the screening channel 22.

[0053] The rightmost rotating shaft 250 is rotated by the external existing driving technology, and the rotating shaft 250 drives the adjacent rotating shaft 250 to rotate synchronously through the sprocket chain. Through the docking process between the rotating sleeve 251 and the corresponding rotating shaft 250, the rotating sleeve 251 rotates synchronously. Through the sprocket chain transmission between the rotating sleeve 251 and the rotating shaft 250 on the right side of the adjacent active frame, the rotating shaft 250 on the adjacent active frame rotates synchronously. The above process is repeated to make all the rotating shafts 250 rotate synchronously, and the mounting sleeve drives the toggle bar 254 thereon to rotate synchronously. The toggle bar 254 toggles the corresponding matching plate 255, so that the matching plate 255 drives the corresponding rubbing bar 260 to move left synchronously through the sliding block 261, and the reset spring The spring 262 is stretched, and when the toggle bar 254 is staggered with the matching plate 255, the elastic force generated by the deformation of the reset spring 262 resets the sliding block 261 and the rubbing bar 260. Therefore, as the rotating shaft 250 rotates a full circle, the rubbing bar 260 moves back and forth left and right along the length direction of the active frame. Secondly, because the toggle bars 254 and the matching plate 255 corresponding to the two adjacent rubbing bars 260 are staggered and matched, there is always relative movement between the two rubbing bars 260 corresponding to the same screening channel 22. Through the relative movement process of the two, the catalyst carrier is assisted in unloading, avoiding the problem that some catalyst carriers are unable to be unloaded due to excessive friction between the inner wall of the screening channel 22 because the size is the same as that of the screening channel 22.

[0054] Secondly, during the above process, the sliding block 261 drives the corresponding L-shaped frame 263 and the lower pressure plate 265 to move back and forth synchronously. During this process, the lower pressure plate 265 tends to move the catalyst carrier in contact with it, thereby assisting in material unloading.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0056] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "connected", "installed", 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0058] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A spherical catalyst carrier screening device, which is used in combination with an existing spherical separator or spherical distributor. The spherical separator evenly conveys spherical catalysts into the screening device, and is characterized in that, The screening device includes: A frame, there are two frames, and a screening mechanism is jointly arranged between the two frames. The screening mechanism includes a main frame. A plurality of main frames are inclined downward from right to left between the two frames. Fixed-distance frames are arranged on both the front and rear sides of the main frame. A screening channel is jointly formed between the main frame and the fixed-distance frame. An assembly unit is jointly arranged between the two frames. The distance between the fixed-distance frame and the main frame is adjusted through the assembly unit, forming a multi-stage screening with an increasing screening spacing while adjusting the required screening size, and locking the main frame and the fixed-distance frame; Select the required number of main frames and fixed-distance frames according to the requirements of the screening grade and assemble them. Finally, all the main frames, frames, and fixed-distance frames are integrally locked; A driving part is arranged on the main frame. After the assembly unit is locked, all the driving parts are serially locked. A rubbing part for assisting the movement of the catalyst is jointly arranged between the main frame and the fixed-distance frame. The rubbing part includes two rubbing bars opposite to each other front and back. The operation of the driving part makes the corresponding two rubbing bars reciprocate relative to each other along the length direction of the main frame and rub the carrier during the movement for blanking; The rubbing part further includes sliding blocks. Sliding blocks are slidably arranged on the upper end surfaces of the main frame and the fixed-distance frame along their length directions. The rubbing part further includes an L-shaped frame. The upper end surface of the sliding block on the fixed-distance frame is fixedly provided with an L-shaped frame. A pressing rod is slidably arranged up and down along its vertical section on the horizontal section of the L-shaped frame. A lower pressing plate is fixedly arranged on the lower end surface of the pressing rod. A pressing spring is jointly fixedly arranged between the lower pressing plate and the L-shaped frame; Two symmetrically arranged storage bins are installed on the lower side of the main frame.

2. The sieving device for a spherical catalyst carrier according to claim 1, characterized in that: The assembly unit includes assembly columns. Assembly columns with axes perpendicular to the lower end surface of the main frame are rotatably arranged at the lower left sides of the main frames. Two symmetrically arranged ribs for plugging and assembling are fixedly arranged at the lower left sides of the main frames. A Z-shaped frame is fixedly arranged at the lower right side of the main frame. A first plugging slot corresponding to the rib and a second plugging slot for plugging and assembling with the assembly column are respectively opened on the horizontally inclined section on the upper side of the Z-shaped frame.

3. The screening device for a spherical catalyst carrier according to claim 2, characterized in that: The assembly unit further includes a locking plate. A locking plate is arranged on the lower side of the main frame. The locking plate is slidably sleeved on all the assembly columns. A nut for locking the main frame is threadedly installed at the lower end of the assembly column. A convex-shaped frame corresponding to the assembly column is fixedly arranged on the locking plate. A pressing cylinder for pressing against the Z-shaped frame is fixedly arranged on the convex-shaped frame.

4. A spherical catalyst carrier screening device according to claim 3, characterized in that: The assembly unit further includes horizontal rods. Two horizontally distributed horizontal rods with axes extending from front to back are fixedly arranged on both the front and rear sides of the main frame. The fixed-distance frame is slidably sleeved on the corresponding two horizontal rods. Two plugging rods are slidably arranged on the front and rear horizontal sections of the convex-shaped frame. A plurality of equally spaced fixed-distance slots are opened on the horizontal rods. The plugging rods penetrate through the corresponding fixed-distance frame and are inserted into the fixed-distance slots to lock the width of the screening channel.

5. The spherical catalyst carrier screening device according to claim 2, characterized in that: On the right side frame, a first mounting part identical to the rib and a second mounting part identical to the assembly column are fixedly arranged. The first mounting part cooperates with the adjacent first plugging slot. On the left side frame, a third mounting part identical to the Z-shaped frame is fixedly arranged.

6. The screening device for a spherical catalyst carrier according to claim 2, wherein: The driving part includes a rotating shaft, and there are two rotating shafts distributed on the left and right and with axes perpendicular to the upper and lower end surfaces of the main frame. The right rotating shaft on the main frame passes through the corresponding Z-shaped frame, and the left rotating shaft passes through the Z-shaped frame adjacent to its left. The two rotating shafts on the same main frame are driven by a sprocket chain, and a rotating sleeve is provided on the horizontal inclined section on the lower side of the Z-shaped frame. The rotating sleeve and the corresponding rotating shaft on the Z-shaped frame are also driven by a sprocket chain. A clamping groove is provided on the rotating shaft on the left side of the main frame, and a clamping block that cooperates with the clamping groove is fixed on the rotating sleeve.

7. The spherical catalyst carrier screening device according to claim 6, characterized in that: A reset spring is fixedly arranged between the sliding block and the main frame or the distance frame. The corresponding two rubbing bars are respectively fixedly arranged on the opposite surfaces of the corresponding two sliding blocks. The opposite surfaces of the two rubbing bars are both arc-shaped surfaces.

8. A spherical catalyst carrier screening device according to claim 7, characterized in that: The lower pressure plate is divided into an inclined section and a horizontal section from right to left. The inclined section is inclined downward from right to left, and the horizontal section is parallel to the fixed distance frame.

9. A spherical catalyst carrier screening device according to claim 8, characterized in that: The driving part also includes a toggle bar. The rotating shaft on the right side of the main frame passes through the main frame and the fixed sleeve is provided with an installation sleeve. The circumferential surface of the installation sleeve is fixed with two groups of bar groups staggered up and down. The bar group includes multiple circumferentially distributed toggle bars, and the toggle bars in the upper and lower bar groups are staggered in the circumferential direction. The L-shaped frame and the sliding block on the main frame are fixed with matching plates, and the two matching plates are respectively in contact with and matched with the toggle bars in the two bar groups.

10. A spherical catalyst carrier screening device according to claim 1, characterized in that: The distance frame is slidable back and forth toward the end surface of the main frame and is provided with two blocking plates distributed left and right.

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