Spherical catalyst carrier screening device

Abstract

The invention relates to the technical field of catalyst processing, in particular to a spherical catalyst carrier screening device which comprises a rack, a screening mechanism, a driving part and a storage bin. Relative movement always exists between the two rubbing strips corresponding to the same screening channel, catalyst carrier discharging is assisted through the relative movement process of the two rubbing strips, and the problem that due to the fact that the size of part of catalyst carriers is the same as that of the screening channel, friction force between the catalyst carriers and the inner wall of the screening channel is too large, and discharging cannot be conducted is solved; meanwhile, the height of the catalyst carrier in the discharging process is controlled through the lower pressing plate, the problem of catalyst carrier accumulation is avoided, meanwhile, the carrier is rubbed through left-right reciprocating movement, discharging is assisted, after locking is conducted through the assembling unit, the required number of screening channels are formed, all the screening channels form set multi-stage screening, the screening effect is improved, and meanwhile the screening efficiency is improved. And integrated assembly can be carried out, and the convenience degree and practicability of the device are improved.

Description

Technical Field

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

[0002] Spherical catalyst carriers are a type of material 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. Spherical catalyst carriers are produced in different sizes. In order to ensure the consistency of particle size, the spherical catalyst carriers need to be screened during the manufacturing process to ensure that the size of the final product meets the specification requirements.

[0003] At present, the main methods used for screening spherical catalyst carriers are vibration screening, centrifugal screening, casting screening, ultrasonic screening and mechanical screening using existing mechanical equipment. Due to the spherical characteristics of the spherical catalyst carriers, in the existing mechanical screening process, a multi-level screening channel is formed by a plurality of different inclined guide rails. All screening channels constitute an overall screening flow path. The screening size of the screening channel increases from top to bottom. The spherical catalyst carriers are transported into the screening flow path in turn by the existing spherical separator for screening, and the catalyst carriers screened out in each screening channel are collected separately.

[0004] The above-mentioned screening process has the following problems: when the spherical diameter of the spherical catalyst carrier is the same as the formed screening channel, the carrier is prone to get stuck in the screening channel, affecting the unloading process in the screening channel. At the same time, the carriers are stuck and piled up, affecting the movement and unloading process of all carriers. Secondly, the screening channels in the current screening flow path are fixed, so the overall screening size specifications are relatively fixed, which makes it difficult to adapt to different screening situations and has overall limitations. Summary of the invention

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

[0006] The present application provides a spherical catalyst carrier screening device, which is used in combination with an existing spherical separator or a spherical distributor. The spherical separator uniformly transports the spherical catalyst into the screening device. The screening device comprises: a frame, wherein the number of the frames is two, and a screening mechanism is commonly arranged between the two frames. The screening mechanism comprises a main frame, and a plurality of main frames are arranged between the two frames in an inclined manner downward from right to left. Both the front and rear sides of the main frame are provided with a spacing frame, and a screening channel is commonly formed between the main frame and the spacing frame. An assembly unit is commonly arranged between the two frames, and the distance between the spacing frame and the main frame is adjusted by the assembly unit to form a multi-stage screening with the screening spacing increasing successively from top to bottom, and the main frame and the spacing frame are locked.

[0007] The main frame is provided with a driving part. After the assembly unit is locked, all the driving parts are locked in series. A rubbing part for assisting the movement of the catalyst is provided between the main frame and the distance frame. The rubbing part includes two rubbing bars facing each other front and back. The operation of the driving part makes the corresponding two rubbing bars move back and forth relative to each other along the length direction of the main frame and rub the carrier to discharge the material during the movement.

[0008] Two front-to-back symmetrical storage bins are installed on the lower side of the main frame.

[0009] According to a favorable embodiment, the assembly unit includes an assembly column, and the lower left end of the main frame is rotatably provided with an assembly column whose axis is perpendicular to the lower end surface of the main frame, and the lower left end of the main frame is fixedly provided with two ribs that are symmetrical front and back and used for plug-in assembly, and the lower right end of the main frame is fixedly provided with a Z-shaped frame, and the lateral inclined section on the upper side of the Z-shaped frame is respectively provided with a plug-in groove 1 corresponding to the rib and a plug-in groove 2 that plugs in and cooperates with the assembly column.

[0010] According to a favorable embodiment, the assembly unit further comprises a locking plate, which is arranged on the lower side of the main frame, and is slidably mounted on all assembly columns, and a nut for locking the main frame is threadedly mounted on the lower end of the assembly column, and a convex frame corresponding to the assembly column is fixedly arranged on the locking plate, and a tightening cylinder for tightening the Z-shaped frame is fixedly arranged on the convex frame.

[0011] According to a favorable embodiment, the assembly unit also includes a horizontal rod, and two horizontal rods distributed left and right and with axes extending from front to rear are fixedly arranged on the front and rear sides of the main frame. The spacing frame is slidably mounted on the corresponding two horizontal rods, and two plug-in rods are slidably arranged on the front and rear horizontal sections of the convex frame. The horizontal rods are provided with a plurality of spacing grooves arranged equidistantly front and back. The plug-in rods penetrate the corresponding spacing frames and are inserted into the spacing grooves 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 an adjacent insertion 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 that are distributed on the left and right and whose axes are 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 side. The two rotating shafts on the same main frame are driven by a sprocket chain, and a rotating sleeve is provided on the rotating sleeve on the transverse 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 fixedly provided 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 spacing frame are both provided with sliding blocks for sliding along their length directions, and a return spring is fixedly provided between the sliding block and the main frame or the spacing frame, and the corresponding two rubbing strips are respectively fixedly provided on the opposite surfaces of the corresponding two sliding blocks, and the opposite surfaces of the two rubbing strips 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, a lower pressure rod is provided on the horizontal section of the L-shaped frame to slide up and down along its vertical section, a lower pressure plate is fixedly provided on the lower end surface of the lower pressure rod, 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 and matched with the toggle bars in the two bar groups.

[0017] According to a favorable embodiment, 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.

[0018] In summary, the present invention includes at least one of the following beneficial effects: 1. In the present invention, there is always relative movement between the two rubbing bars corresponding to the same screening channel. Through the relative movement process of the two, the catalyst carrier is assisted in unloading, thereby avoiding the problem that some catalyst carriers cannot be unloaded due to excessive friction between the inner wall of the screening channel because the size of the catalyst carrier is the same as that of the screening channel. At the same time, the height of the catalyst carrier during the unloading process is controlled by the lower pressure plate to avoid the problem of catalyst carrier accumulation. At the same time, the rubbing carrier is moved back and forth left and right to assist unloading.

[0019] 2. The present invention meets different screening size requirements by cooperating with the plug-in rods and the spacing grooves at different positions. Secondly, the number of main frames required is set according to the size type of the catalyst required for screening. After the assembly unit is locked, the required number of screening channels is formed, and all screening channels form the set multi-stage screening, which improves the screening effect and can be assembled in an integrated manner, thereby improving the convenience and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 A schematic structural diagram of a spherical catalyst carrier screening device provided according to an embodiment of the present invention is shown.

[0022] Figure 2 A partial structural schematic diagram of a spherical catalyst carrier screening device provided according to an embodiment of the present invention is shown.

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

[0024] Figure 4 A partially cutaway stereoscopic schematic diagram of a spherical catalyst carrier screening device provided according to an embodiment of the present invention is shown.

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

[0026] Figure 6 A schematic diagram of the three-dimensional structure between a main frame, a distance frame and a Z-shaped frame provided according to an embodiment of the present invention is shown.

[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 strip provided according to an embodiment of the present invention is shown.

[0029] Fig. 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, spacing 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, spacing slot; 24 3. Mounting part one; 244. Mounting part two; 245. Mounting part three; 25. Driving part; 250. Rotating shaft; 251. Rotating sleeve; 252. Snap-in groove; 253. Snap-in block; 254. Push bar; 255. Matching plate; 26. Rubbing part; 260. Rubbing bar; 261. Sliding block; 262. Reset spring; 263. L-shaped frame; 264. Pressing rod; 265. Pressing plate; 266. Pressure spring; 27. Storage bin; 28. Sealing plate. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by 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 a spherical distributor. The spherical separator uniformly 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, a frame 1, the number of which is two, a screening mechanism 2 is commonly arranged between the two frames 1, the screening mechanism 2 comprises a main frame 20, a plurality of main frames 20 are arranged between the two frames 1 in a slanting manner downward from right to left, a spacing frame 21 is arranged on both the front and rear sides of the main frame 20, the main frame 20 and the corresponding two spacing frames 21 jointly form two front-to-back symmetrical screening channels 22, an assembly unit 23 is commonly arranged between the two frames 1, the distance between the spacing frame 21 and the main frame 20 is adjusted by the assembly unit 23, the required screening size is adjusted, and a multi-stage screening with a screening spacing increasing successively is formed, and the main frame 20 and the spacing frame 21 are locked, as shown in FIG. Figure 2 As shown, in order to prevent the catalyst carrier from falling during the screening process and entering the next screening channel 22, the distance frame 21 slides back and forth toward the end surface of the main frame 20 and is provided with two blocking plates 28 distributed left and right.

[0033] like Figure 1 , Figure 2 and Figure 8 As shown, a driving part 25 is provided on the main 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 provided between the main frame 20 and the spacing frame 21. The rubbing part 26 includes two front and rear opposite rubbing bars 260. When the driving part 25 is operated, the corresponding two rubbing bars 260 move back and forth relative to each other along the length direction of the main frame 20.

[0034] like Figure 1 As shown, two storage bins 27 which are symmetrical front and back and used to store carriers of corresponding sizes are installed on the lower side of the main frame 20.

[0035] It should be noted that the number of main frames 20 required is set according to the size type of the catalyst carrier to be screened, and the corresponding spacing frames 21 are selected and adapted, and the number of screening channels 22 of different sizes is also determined.

[0036] During operation, the selected spacing frames 21 are first assembled in sequence by the assembly unit 23 and installed between the two racks 1. Then, all the spacing frames 21 are assembled and the spacing between the spacing frames 21 and the corresponding main 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 the screening channel 22). Finally, all the main frames 20 and the spacing frames 21 are locked by the assembly unit 23. At this point, a screening flow path formed by multiple screening channels 22 is formed from right to left (see Figure 2 , Figure 3 , Figure 4The moving path of the catalyst carrier in the screening flow path increases from right to left. When the above assembly is completed, the storage bin 27 corresponding to each screening channel 22 is installed below the corresponding screening channel 22.

[0037] Afterwards, the spherical distributor will distribute all the catalyst carriers that need to be screened in turn by particles and enter the rightmost side of the screening flow path through the guide plate. The catalyst carriers move freely downward along the direction of the screening flow path. During the movement, when the ball diameter is smaller than the width of the screening channel 22, the catalyst carrier passes through the screening channel 22 and falls into the corresponding storage bin 27, thereby screening out catalyst carriers of different ball diameters. Finally, catalyst carriers of different ball diameters are manually taken out from different storage bins 27, and the screening operation is completed.

[0038] It should be additionally explained that, in the above-mentioned assembly process, the drive parts 25 are assembled in series and locked as a whole by the assembly unit 23, and the drive parts 25 are connected to the external existing drive technology, such as a servo motor, etc. All drive parts 25 are driven by the existing drive technology to make the two front and rear opposite rubbing bars 260 move back and forth, and the corresponding two rubbing bars 260 move in opposite directions, thereby rubbing the catalyst carrier between the two, assisting the catalyst carrier to move down and unload the material, and avoiding blockage and other problems that affect the screening operation.

[0039] like Figure 2 , Figure 5 and Figure 6 As shown, the assembly unit 23 includes an assembly column 230, and the lower left end of the main frame 20 is rotatably provided with an assembly column 230 whose axis is perpendicular to the lower end surface of the main frame 20, and the lower left end of the main frame 20 is fixedly provided with two front-to-back symmetrical ribs 231 for plug-in assembly, and the lower right end of the main frame 20 is fixedly provided with a Z-shaped frame 232, and the lateral inclined sections on the upper side of the Z-shaped frame 232 are respectively provided with a plug-in groove 1 233 corresponding to the rib 231 and a plug-in groove 234 plug-in cooperating with the assembly column 230.

[0040] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the assembly unit 23 also includes a locking plate 235. The locking plate 235 is arranged on the lower side of the main frame 20. The locking plate 235 is slidably mounted on all the assembly columns 230. The lower end of the assembly column 230 is threadedly mounted with a nut 236 for locking the main frame 20. A convex frame 237 corresponding to the assembly column 230 is fixedly arranged on the locking plate 235, and a tightening cylinder 238 for tightening the Z-shaped frame 232 is fixedly arranged on the convex frame 237.

[0041] like Figure 2 , Figure 3 , Figure 5 , Figure 6 and Fig. 9 As shown, the assembly unit 23 also includes a horizontal rod 240. Two horizontal rods 240 distributed left and right and with axes extending from front to rear are fixedly arranged on the front and rear sides of the main frame 20. The spacing frame 21 is slidably mounted on the corresponding two horizontal rods 240. Two plug-in rods 241 are slidably arranged front and back on the front and rear horizontal sections of the convex frame 237. In order to adapt to the screening needs of different sizes and to fix the screening size, a plurality of spacing grooves 242 equidistantly arranged front and back are opened on the horizontal rod 240. The plug-in rod 241 penetrates the corresponding spacing frame 21 and is inserted into the spacing groove 242 to lock the width of the screening channel 22.

[0042] First, according to the requirements of the screening grade, the required number of main frames 20 and spacing frames 21 are selected and assembled. The specific assembly process between two adjacent main frames 20 is as follows: manually move the main frame 20 set on the left side close to the main frame 20 on the right side, initially making the left main frame 20 located below the right main frame 20, move the left main frame 20 so that the rib plate 231 on the right main frame 20 is inserted into the plug-in groove 233 on the left Z-shaped frame 232, and the rib plate 231 is engaged with the plug-in groove 233 through the cooperation between the rib plate 231 and the plug-in groove 233. The guide guides and limits the moving direction of the left main frame 20. When the two main frames 20 are close together, the second plug-in slot 234 moves to the bottom of the corresponding assembly column 230, and the two are opposite to each other. Then, the left main frame 20 is moved so that the assembly column 230 on the right main frame 20 passes through the second plug-in slot 234 on the corresponding Z-shaped frame 232, completing the preliminary docking between the two main frames 20. Then, the above operation is repeated to assemble all the main frames 20. It should be additionally explained that the connection process between the main frame 20 and the frame 1 is the same as above.

[0043] The rib plate 231 not only guides the docking process of the two main frames 20 , but also improves the strength of the two main frames 20 after being assembled after the rib plate 231 is inserted into the corresponding insertion groove 233 .

[0044] Then, the locking plate 235 is manually moved, so that 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, and the locking plate 235 is continuously moved, and finally all the abutting cylinders 238 are respectively pressed against the frame 1 and all the main frames 20. Secondly, in the process of continuously moving the locking plate 235, according to the required screening width of the screening channel 22, the spacing frame 21 is sleeved on the corresponding two horizontal rods 240, and the spacing frame 21 is moved forward and backward so that the distance between the spacing frame 21 and the corresponding main frame 20 is the required set screening width, and the corresponding plug rod 240 is manually adjusted. 41, so that the plug-in rod 241 is opposite to the spacing groove 242 at the corresponding position, and then as the locking plate 235 continues to move upward, the locking plate 235 drives the convex frame 237 and the plug-in rod 241 to move upward, and the plug-in rod 241 moves upward to penetrate the spacing frame 21 and the spacing groove 242 described above, locking the width spacing between the main frame 20 and the spacing frame 21, and finally manually tighten the nut 236 onto the assembly column 230, and finally all the main frames 20, the frame 1 and the spacing frame 21 are integrated and locked, and the screening spacings of the multiple screening channels 22 in the formed screening flow path are arranged in a set order and the screening spacing sizes are all set values.

[0045] like Figure 4 and Figure 5 As shown, the right frame 1 is fixedly provided with a mounting piece 243 identical to the rib plate 231 and a mounting piece 244 identical to the assembly column 230, the mounting piece 243 cooperates with the adjacent plug-in slot 233, the mounting piece 244 and the assembly column 230 also play an assembly role, and the left frame 1 is fixedly provided with a mounting piece 3 245 identical to the Z-shaped frame 232, the mounting piece 3 245 cooperates with the adjacent rib plate 231 and the assembly column 230.

[0046] During the assembly process, the right-side mounting piece 243 is the same as the rib plate 231, and cooperates with the plug-in slot 233 on the Z-shaped frame 232 on the rightmost main frame 20. The mounting piece 244 has the same function as the assembly column 230, penetrates the Z-shaped frame 232, and the locking plate 235 is installed on the mounting piece 244. The mounting piece 3 245 is used to dock with the assembly column 230 and the rib plate 231 on the leftmost main frame 20, and finally all the main frames 20 are installed between the two racks 1 and locked.

[0047] like Figure 2 , Figure 6 and Figure 7As shown, the driving part 25 includes a rotating shaft 250. There are two rotating shafts 250 distributed on the left and right and with axes perpendicular to the upper and lower end surfaces of the main frame 20. The right rotating shaft 250 on the main frame 20 passes through the corresponding Z-shaped frame 232, and the left rotating shaft 250 passes through the adjacent Z-shaped frame 232 on its left side. The two rotating shafts 250 on the same main frame 20 are driven by a sprocket chain. A rotating sleeve 251 is rotatably provided on the transverse inclined section on the lower side of the Z-shaped frame 232. 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 opened on the rotating shaft 250 on the left side of the main frame 20, and a clamping block 253 cooperating with the clamping groove 252 is fixedly provided on the rotating sleeve 251.

[0048] In the above-mentioned assembly process, when the Z-shaped frame 232 is installed on the corresponding assembly column 230, when the Z-shaped frame 232 is docked with the adjacent assembly column 230, the rotating sleeve 251 on the Z-shaped frame 232 is opposite to the corresponding rotating shaft 250. Therefore, when the Z-shaped frame 232 is installed on the assembly column 230, the rotating sleeve 251 is installed on the corresponding rotating shaft 250, and the clamping block 253 on the rotating sleeve 251 is clamped into the corresponding clamping groove 252, so the docking between the rotating shaft 250 and the rotating sleeve 251 is completed. After completing the docking process of all the main frames 20, the driving part 25 is also assembled and locked.

[0049] like Figure 2 , Figure 8 and Fig. 9 As shown, the rubbing portion 26 also includes a sliding block 261. The upper end surfaces of the main frame 20 and the spacing frame 21 are both slidably provided with sliding blocks 261 along their length directions. A reset spring 262 is fixedly provided between the sliding block 261 and the main frame 20 or the spacing frame 21. The corresponding two rubbing bars 260 are respectively fixedly provided on the opposite surfaces of the corresponding two sliding blocks 261. The opposite surfaces of the two rubbing bars 260 are both arc-shaped surfaces. It should be noted that due to the need to form step screening, the two adjacent spacing frames 21 are staggered front and back, so the two adjacent rubbing bars 260 are also staggered to avoid the problem of the rubbing bars 260 getting stuck when moving back and forth.

[0050] like Figure 2 and Figure 8As shown, the rubbing portion 26 also includes an L-shaped frame 263, the upper end surface of the sliding block 261 on the spacing frame 21 is fixedly provided with the L-shaped frame 263, 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, 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, wherein the inclined section is inclined downward from right to left, and the horizontal section is parallel to the spacing frame 21, 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 Fig. 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 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 upper and lower adjacent matching plates 255 are connected to each other by sliding left and right.

[0052] When performing 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 when rolling, ensuring that the catalyst carrier can move downward evenly, and avoiding the problem of multiple catalyst carriers being stacked and affecting screening. The set pressure spring 266 makes the height control process of the lower pressure plate 265 an elastic operation process, thereby 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, and the rotating shaft 250 on the adjacent active frame is driven by the sprocket chain between the rotating sleeve 251 and the right rotating shaft 250 on the adjacent active frame. The rotating shaft 250 on the adjacent active frame rotates synchronously. Repeat the above process so that all the rotating shafts 250 rotate synchronously, and the installation 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 plates 255 corresponding to two adjacent rubbing bars 260 are staggered and matched, there is always a 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 have the same size as the screening channel 22, and the friction between them and the inner wall of the screening channel 22 is too large, resulting in the inability to unload.

[0054] Secondly, in the above process, the sliding block 261 drives the corresponding L-shaped frame 263 and the lower pressing plate 265 to move back and forth synchronously. In this process, the lower pressing plate 265 has a tendency to move the catalyst carrier in contact with it, thereby assisting the 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] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spherical catalyst carrier screening device, used in combination with an existing spherical separator or spherical distributor, the spherical separator uniformly transports the spherical catalyst into the screening device, characterized in that: The screening device includes: A frame, wherein the number of the frames is two, a screening mechanism is commonly arranged between the two frames, the screening mechanism comprises a main frame, a plurality of main frames are arranged between the two frames in a slanting manner downward from right to left, a distance frame is arranged on both the front and rear sides of the main frame, a screening channel is commonly formed between the main frame and the distance frame, an assembly unit is commonly arranged between the two frames, the distance between the distance frame and the main frame is adjusted by the assembly unit, a multi-stage screening with a screening spacing increasing successively is formed while adjusting the required screening size, and the main frame and the distance frame are locked; The main frame is provided with a driving part, and after the assembly unit is locked, all the driving parts are locked in series. A rubbing part for assisting the movement of the catalyst is provided between the main frame and the distance frame. The rubbing part includes two rubbing bars facing each other front and back. The operation of the driving part makes the corresponding two rubbing bars move back and forth relatively along the length direction of the main frame and rub the carrier to discharge the material during the movement. Two front-to-back symmetrical storage bins are installed on the lower side of the main frame.

2. A spherical catalyst carrier screening device according to claim 1, characterized in that: The assembly unit includes an assembly column, and an assembly column with an axis perpendicular to the lower end surface of the main frame is rotatably arranged at the lower left end of the main frame. Two ribs that are symmetrical front and back and used for plug-in assembly are fixedly arranged at the lower left end of the main frame, and a Z-shaped frame is fixedly arranged at the lower right end of the main frame. A plug-in groove 1 corresponding to the rib and a plug-in groove 2 plug-in cooperating with the assembly column are respectively opened on the transverse inclined section on the upper side of the Z-shaped frame.

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

4. A spherical catalyst carrier screening device according to claim 3, characterized in that: The assembly unit also includes a horizontal rod. Two horizontal rods distributed left and right and with axes extending from front to back are fixedly arranged on the front and rear sides of the main frame. The spacing frame is slidably mounted on the corresponding two horizontal rods. Two plug-in rods are slidably arranged on the front and rear horizontal sections of the convex frame. The horizontal rod is provided with a plurality of spacing grooves arranged equidistantly front and back. The plug-in rods penetrate the corresponding spacing frames and are inserted into the spacing grooves to lock the width of the screening channel.

5. A spherical catalyst carrier screening device according to claim 2, characterized in that: The right frame is fixedly provided with a mounting piece 1 which is the same as the rib plate and a mounting piece 2 which is the same as the assembly column, the mounting piece 1 cooperates with an adjacent plug-in slot 1, and the left frame is fixedly provided with a mounting piece 3 which is the same as the Z-shaped frame.

6. A spherical catalyst carrier screening device according to claim 2, characterized in that: The driving part includes a rotating shaft, and there are two rotating shafts on the main frame that are distributed on the left and right and whose axes are perpendicular to the upper and lower end surfaces of the main frame. The right rotating shaft on the main frame penetrates the corresponding Z-shaped frame, and the left rotating shaft penetrates the Z-shaped frame adjacent to its left side. The two rotating shafts on the same main frame are driven by a sprocket chain, and a rotating sleeve is provided on the lateral 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 fixedly provided on the rotating sleeve.

7. A spherical catalyst carrier screening device according to claim 6, characterized in that: The rubbing part also includes a sliding block. The upper end surfaces of the main frame and the spacing frame are both provided with sliding blocks for sliding along their length directions. A return spring is fixedly arranged between the sliding block and the main frame or the spacing frame. The corresponding two rubbing strips are respectively fixedly arranged on the opposite surfaces of the corresponding two sliding blocks, and the opposite surfaces of the two rubbing strips are both arc-shaped surfaces.

8. A spherical catalyst carrier screening device according to claim 7, characterized in that: The rubbing part also includes an L-shaped frame, an upper end surface of the sliding block on the fixed-distance frame is fixedly provided with the L-shaped frame, a lower pressure rod is provided on the horizontal section of the L-shaped frame to slide up and down along its vertical section, a lower pressure plate is fixedly provided on the lower end surface of the lower pressure rod, 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.

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 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. Matching plates are fixedly provided on the sliding blocks on the L-shaped frame and the main frame, and the two matching plates are respectively in contact with and matched with the toggle bars in the two bar groups.

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

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