Catalyst solid particle screening device capable of distinguishing particle sizes

Abstract

The utility model relates to the technical field of catalyst production, in particular to a catalyst solid particle screening device capable of distinguishing particle sizes, which comprises a screening mechanism and is used for screening catalyst solid particles in a particle size distinguishing manner. The mounting seats are fixed to the outer wall of the shaft rod and distributed at equal intervals, the scraping heads are fixed to the four ends of the mounting seats, the hanging rods are fixed to the front end and the rear end in the lower shell, the arc-shaped screen is installed between the two hanging rods, and the belt wheel is fixed to one end of the shaft rod. The first-stage screening assembly comprises an upper shell fixed to the top of the lower shell. The scraping head uninterruptedly shifts catalyst solid particles in the arc-shaped screen, so that the contact area between the catalyst solid particles and the arc-shaped screen is increased, and the screening efficiency is improved; in addition, the rotating scraping head further has a certain cleaning function, and the situation that the arc-shaped screen is blocked can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of catalyst production technology, specifically is a kind of catalyst solid particle screening device of distinguishing particle size. BACKGROUND

[0002] At present, ozone purification usually adopts the method of decomposition, among which ozone catalyst is most widely used for decomposition. Ozone catalyst is generally in granular form. There are powder and small particles in the material during the production of ozone catalyst. Therefore, a screening device is needed to screen the catalyst particles during the preparation of ozone catalyst.

[0003] According to the search, the publication number: CN221453378U discloses a kind of catalyst screening device. In this technology, a kind of catalyst screening device is disclosed, which comprises a plurality of support rods fixedly connected to the upper surface of the bottom plate, a plurality of support rods are fixedly connected to the top of the screening cylinder, a fan is fixedly connected to the top of the screening cylinder, and an air outlet is formed in the side wall of the screening cylinder away from the fan. The technical scheme has the technical effects of "catalyst material enters from the top of the screening cylinder, the catalyst is blown to the side of the air outlet by the fan, the particulate material is blocked by the screening assembly, the powder material passes through the first screen of the screening assembly and enters the inside of the screening assembly, then the particulate material falls into the screening groove, the second screen of the screening groove bottom wall is used to further screen the particulate material, and the broken particles are removed, so that the powder material and the broken particle material are separated and collected, and the screening effect is greatly improved by twice screening."

[0004] The above-mentioned scheme uses a fan to feed material and cooperates with a vibration motor to perform screening operation. This design may cause the distribution of material on the screen surface to be uneven, thereby causing part of the screen surface to be not fully utilized, and the screening efficiency is thus restricted. In addition, the moving speed and residence time of the material on the screen surface are also key factors affecting the screening efficiency. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of catalyst solid particle screening device of distinguishing particle size, with the scraper head not discontinuously stirring the catalyst solid particles in the arc screen, which helps to increase the contact area of catalyst solid particles and arc screen, and improve the screening efficiency. Moreover, the rotating scraper head also has a certain cleaning effect, which can reduce the characteristics of arc screen blockage.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a kind of catalyst solid particle screening device of distinguishing particle size, comprising a screening mechanism and being used for distinguishing particle size screening of catalyst solid particles, the screening mechanism comprises:

[0007] The secondary screening assembly comprises a shaft rod rotatably installed between two ends inside the lower shell, equidistantly distributed mounting seats fixed on the outer wall of the shaft rod, scraping heads fixed on four ends of the mounting seats, hanging rods fixed on the front and rear ends inside the lower shell, an arc-shaped screen installed between the two hanging rods, and a belt pulley fixed on one end of the shaft rod.

[0008] The primary screening assembly comprises an upper shell fixed on the top of the lower shell, a screening groove installed inside the upper shell, and auxiliary parts arranged on the inner walls of the left and right ends of the upper shell and used for installing and buffering the screening groove.

[0009] Preferably, the auxiliary parts comprise four guide frames fixed on the inner walls of the left and right ends of the upper shell in mirror symmetry, guide rods slidingly installed inside the guide frames, a clamping plate fixed between the two guide rods, and springs installed on the guide rods.

[0010] Preferably, the primary screening assembly further comprises a motor installed on the outer walls of the left and right ends of the upper shell, and an eccentric wheel fixed on the output end of the motor.

[0011] Preferably, the primary screening assembly further comprises an upper cover door hingedly connected to one side of the front end of the upper shell.

[0012] Preferably, the secondary screening assembly further comprises a lower cover door hingedly connected to one side of the front end of the lower shell, and a stopper fixed on the inner wall of the lower cover door.

[0013] Preferably, the screening mechanism further comprises a shell seat fixed on the bottom of the secondary screening assembly, and a discharge hopper installed inside the shell seat.

[0014] Advantages

[0015] The utility model provides a kind of catalyst solid particle screening device of distinguishing particle size.Compared with prior art, it has the following advantages:

[0016] (1) after being screened by screening groove, catalyst solid particles fall into the arc-shaped screen inside the lower shell, then the shaft rod is driven to rotate by belt pulley driven by external driving equipment, the scraping head is driven to rotate by mounting seat, so that the scraping head continuously stirs catalyst solid particles inside the arc-shaped screen, which helps to increase the contact area of catalyst solid particles and arc-shaped screen, and improve screening efficiency;Moreover, the rotating scraping head also has a certain cleaning effect, which can reduce the blocking of arc-shaped screen.

[0017] (2) the eccentric wheel is driven to rotate by the output end of motor, so that the eccentric wheel continuously stirs the screening groove driven by clamping plate, and the screening groove vibrates under the cooperation of spring, so as to screen catalyst solid particles inside;when the screening groove is put into the upper shell, the end of the screening groove is inserted between the upper and lower clamping plates, and the upper and lower clamping plates are clamped by the upper and lower springs respectively, and the screening groove can be directly pulled out between the two clamping plates when it needs to be taken out. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the secondary screening component in this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the primary screening component in this utility model;

[0022] Figure 5 This is a schematic diagram of the internal auxiliary components of the upper shell in this utility model.

[0023] In the diagram: 1. Screening mechanism; 11. Secondary screening assembly; 111. Lower housing; 112. Shaft; 113. Mounting base; 114. Scraper; 115. Hanging rod; 116. Arc screen; 117. Lower cover door; 118. Stop; 119. Pulley; 12. Primary screening assembly; 121. Upper housing; 122. Screening trough; 123. Auxiliary parts; 1231. Guide frame; 1232. Guide rod; 1233. Clamping plate; 1234. Spring; 124. Motor; 125. Eccentric wheel; 126. Upper cover door; 13. Housing base; 14. Discharge hopper. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a catalyst solid particle screening device for distinguishing particle size, including a screening mechanism 1 for screening catalyst solid particles by particle size, the screening mechanism 1 including:

[0026] The secondary screening assembly 11 includes a shaft 112 rotatably mounted between the two ends inside the lower housing 111, mounting seats 113 fixed at equal intervals on the outer wall of the shaft 112, scrapers 114 fixed at all four ends of the mounting seats 113, hanging rods 115 fixed at both the front and rear ends inside the lower housing 111, an arc-shaped screen 116 installed between the two hanging rods 115, and a pulley 119 fixed at one end of the shaft 112.

[0027] The primary screening assembly 12 comprises an upper shell 121 fixed on the top of the lower shell 111, a screening groove 122 installed inside the upper shell 121, and auxiliary parts 123 arranged on the inner walls of the left and right ends of the upper shell 121 and used for mounting and buffering the screening groove 122.

[0028] In this embodiment, the catalyst solid particles screened through the screening groove 122 fall into the arc-shaped screen 116 inside the lower shell 111. The shaft 112 is driven to rotate by the driving belt wheel 119, and the scraper 114 is driven to rotate by the mounting seat 113, so that the scraper 114 continuously stirs the catalyst solid particles inside the arc-shaped screen 116, which helps to increase the contact area of the catalyst solid particles with the arc-shaped screen 116 and improve the screening efficiency. In addition, the rotating scraper 114 also has a cleaning effect, which can reduce the clogging of the arc-shaped screen 116.

[0029] Specifically, the auxiliary parts 123 comprise four guide frames 1231 fixed on the inner walls of the left and right ends of the upper shell 121 in mirror symmetry, guide rods 1232 slidingly installed inside the guide frames 1231, clamping plates 1233 fixed between the two guide rods 1232, and springs 1234 installed on the guide rods 1232.

[0030] In this embodiment, when the screening groove 122 is placed inside the upper shell 121, the end of the screening groove 122 is inserted between the upper and lower clamping plates 1233, and the upper and lower clamping plates 1233 are pushed by the upper and lower springs 1234 to clamp the screening groove 122. When the screening groove 122 needs to be removed, it can be directly pulled out between the two clamping plates 1233.

[0031] Specifically, the primary screening assembly 12 further comprises a motor 124 installed on the outer walls of the left and right ends of the upper shell 121, and an eccentric wheel 125 fixed on the output end of the motor 124.

[0032] In this embodiment, the eccentric wheel 125 is driven to rotate by the output end of the motor 124, so that the eccentric wheel 125 continuously stirs the clamping plate 1233 to drive the screening groove 122 to vibrate under the cooperation of the spring 1234, thereby screening the catalyst solid particles inside.

[0033] Specifically, the primary screening assembly 12 further comprises an upper cover door 126 hinged on one side of the front end of the upper shell 121.

[0034] In this embodiment, after the screening is completed, the upper cover door 126 can be opened, and the screening groove 122 can be taken out from the upper shell 121. Since the screening groove 122 is the first time to filter the catalyst solid particles, the catalyst solid particles with larger particles may be retained in the screening groove 122, and the catalyst solid particles with larger particles retained in the screening groove 122 can be taken out for rework.

[0035] Specifically, the secondary screening assembly 11 further comprises a lower cover door 117 hinged on one side of the front end of the lower shell 111, and a stop head 118 fixedly arranged on the inner wall of the lower cover door 117.

[0036] In this embodiment, when the scraper 114 stirs the catalyst solid particles in the arc-shaped screen 116 during the screening process, the stop head 118 can block the catalyst solid particles from falling out from above. After the screening is completed, the lower cover door 117 can be opened, and the lower cover door 117 can be lifted upward and then rotated, so that the catalyst solid particles retained in the lower cover door 117 can be poured downward and fall into the shell seat 13 and then be discharged outward through the discharge hopper 14.

[0037] Specifically, the screening mechanism 1 further comprises a shell seat 13 fixedly arranged at the bottom of the secondary screening assembly 11, and a discharge hopper 14 arranged in the shell seat 13.

[0038] In this embodiment, the catalyst solid particles screened through the screening groove 122 finally fall into the shell seat 13 and are discharged outward through the discharge hopper 14.

[0039] Working principle and use process of the utility model:

[0040] Firstly, the catalyst solid particles are poured into the upper shell 121, and then the eccentric wheel 125 is driven to rotate by the output end of the motor 124, so that the eccentric wheel 125 continuously stirs the clamping plate 1233 to drive the screening groove 122, and the screening groove 122 vibrates under the cooperation of the spring 1234, so as to screen the catalyst solid particles in the interior.

[0041] Then, the catalyst solid particles screened through the screening groove 122 fall into the arc-shaped screen 116 in the lower shell 111, and then the shaft rod 112 is driven to rotate by the belt wheel 119 driven by the external driving device, and the scraper 114 is driven to rotate by the mounting seat 113, so that the scraper 114 continuously stirs the catalyst solid particles in the arc-shaped screen 116, which helps to increase the contact area of the catalyst solid particles and the arc-shaped screen 116 and improve the screening efficiency. In addition, the rotating scraper 114 also has a cleaning effect, which can reduce the blocking of the arc-shaped screen 116. Finally, the catalyst solid particles screened through the screening groove 122 fall into the shell seat 13 and are discharged outward through the discharge hopper 14.

[0042] After the screening is finished, the lower cover door 117 is opened, and the lower cover door 117 is lifted up and then rotated, so that the catalyst solid particles remaining in the inside of the lower cover door 117 are poured down, and the catalyst solid particles fall into the shell base 13 and then are discharged outwards through the discharge hopper 14; finally, the upper cover door 126 is opened, so that the screening groove 122 is taken out from the upper shell 121, since the screening groove 122 is the first time to filter the catalyst solid particles, the catalyst solid particles with larger particles remaining in the inside of the screening groove 122 can be taken out for rework.

[0043] It is to be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A catalyst solids particle sizing apparatus for distinguishing between particle sizes, characterized by: The application relates to a screening mechanism (1) for screening catalyst solid particles according to particle size, which comprises the following: The secondary screening assembly (11) comprises a shaft rod (112) rotatably arranged between the two ends inside a lower shell (111), equidistantly distributed mounting seats (113) fixed to the outer wall of the shaft rod (112), scraper heads (114) fixed to the four ends of the mounting seats (113), hanging rods (115) fixed to the front and rear ends inside the lower shell (111), an arc-shaped screen (116) arranged between the two hanging rods (115), and a belt pulley (119) fixed to one end of the shaft rod (112). The primary screening assembly (12) comprises an upper shell (121) fixed to the top of the lower shell (111), a screening groove (122) arranged inside the upper shell (121), and auxiliary parts (123) arranged on the inner walls of the left and right ends of the upper shell (121) and used for screening groove (122) installation and buffering.

2. A catalyst solid particle sieving apparatus for distinguishing particle sizes according to claim 1, characterized in that: The auxiliary parts (123) comprise four guide frames (1231) fixed to the mirror-symmetrical inner walls of the left and right ends of the upper shell (121), guide rods (1232) slidingly arranged inside the guide frames (1231), clamping plates (1233) fixed between the two guide rods (1232), and springs (1234) arranged on the guide rods (1232).

3. A catalyst solid particle screening device for distinguishing particle sizes according to claim 1, characterized in that: The primary screening assembly (12) further comprises a motor (124) arranged on the outer walls of the left and right ends of the upper shell (121), and an eccentric wheel (125) fixed to the output end of the motor (124).

4. A catalyst solid particle screening device for distinguishing particle sizes according to claim 1, characterized in that: The primary screening assembly (12) further comprises an upper cover door (126) hinged to one side of the front end of the upper shell (121).

5. A catalyst solid particle screening device for distinguishing particle sizes according to claim 1, characterized in that: The secondary screening assembly (11) further comprises a lower cover door (117) hinged to one side of the front end of the lower shell (111), and a stop head (118) fixed to the inner wall of the lower cover door (117).

6. A catalyst solids particle screening apparatus for distinguishing between particle sizes according to claim 1, wherein: The screening mechanism (1) further comprises a shell seat (13) fixed to the bottom of the secondary screening assembly (11), and a discharge hopper (14) arranged inside the shell seat (13).

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