Crystallization screening device
By designing a crystallization screening device, using a double-layer screening disk and a vibration mechanism, the problem of easy clogging of the screening disk is solved, rapid cleaning and efficient screening are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202421230071.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the screening process of glyoxylic acid particles, the screening plate is easily blocked by powder, resulting in inefficient screening, which requires manual regular cleaning, which is time-consuming and labor-intensive and cannot be completely cleaned.
A crystallization screening device is designed, including a two-layer screening box and a vibration mechanism. The screen disc adopts a double-layer structure, and a scraper is installed at the push-pull port, which can achieve rapid cleaning through vibration and push-pull operations.
It realizes rapid cleaning of the screen tray, reduces cleaning difficulty, improves cleaning efficiency, saves cleaning time and improves production efficiency.
Smart Images
Figure CN222469779U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of screening devices, in particular to a crystallization screening device. Background Art
[0002] Glyoxylic acid and water in equal molar ratios can be combined to form glyoxylic acid monohydrate, which is a white solid. The glyoxylic acid concentrate is made into granular solids through the granulation system, and then through the screening machine to select particles within the standard particle size range as finished products to enter the packaging system, particles smaller than the standard particle size range are returned to the granulation system as seeds, and particles larger than the standard particle size range enter the crushing system and are crushed and then used as seeds to enter the granulation system.
[0003] When screening particles in a screening machine, powder is easily generated due to the mutual friction between the surfaces of the solid particles of glyoxylic acid. The sieve plate of the screening machine is often blocked by the glyoxylic acid powder during use, and the particles cannot be screened effectively. Manual cleaning is required regularly, and steel brushes and steel chisels are used to clean the holes, which is time-consuming and laborious, and cannot guarantee complete cleaning, resulting in low efficiency of the entire production process.
[0004] In view of this, how to design a technology that can quickly clean the sieve plate of the screening machine is a technical problem to be solved by the utility model. Utility Model Content
[0005] The utility model provides a crystal screening device, which can realize rapid cleaning of the crystal screening device and save cleaning time.
[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:
[0007] A crystallization screening device, comprising:
[0008] A first screening box, having a first feed port on its top, a first sieve plate in the first screening box, the first sieve plate being slidably connected to the inside of the first screening box, a first push-pull port being provided on the first screening box at the end of the first sieve plate, a first scraper being provided at a position near the first push-pull port inside the first screening box and the first scraper being located below the end of the first sieve plate, and a first discharge port being provided at the bottom of the first screening box;
[0009] A second screening box is connected to the first screening box, a second feed port is provided above the second screening box, the second feed port is connected to the first discharge port, a second sieve plate is provided inside the second screening box, the second sieve plate is slidably connected inside the second screening box, the sieve hole size of the second sieve plate is smaller than the sieve hole size of the first sieve plate; a second push-pull port is provided on the second screening box near the end of the second sieve plate, a first scraper is provided inside the second screening box near the second push-pull port and the first scraper is located below the end of the second sieve plate, and a second discharge port is provided on the second screening box;
[0010] A vibration mechanism is connected to the second screening box, and the vibration mechanism is configured to vibrate the first screening box and the second screening box to perform screening operations.
[0011] In some embodiments of the present application, the first sieve tray comprises:
[0012] A first upper screen, with first sliding parts provided at both ends along the sliding direction;
[0013] A first lower screen is slidably connected below the first upper screen, and first sliding grooves adapted to the first sliding portion are provided at both ends of the first lower screen along the sliding direction;
[0014] A second scraper is provided on the inner wall of the first screening box between the first upper screen and the first lower screen.
[0015] In some embodiments of the present application, the second sieve tray comprises:
[0016] A second upper screen, with second sliding parts provided at both ends along the sliding direction;
[0017] A second lower screen is slidably connected below the second upper screen, and second sliding grooves adapted to the second sliding portion are provided at both ends of the second lower screen along the sliding direction;
[0018] A second scraper is arranged on the inner wall of the second screening box between the second upper screen and the second lower screen.
[0019] In some embodiments of the present application, the first upper screen includes a plurality of mesh strips, the first lower screen also includes a plurality of mesh strips and the mesh strips are staggered with the mesh strips of the first upper screen; the second upper screen includes a plurality of mesh strips, the second lower screen also includes a plurality of mesh strips and the mesh strips are staggered with the mesh strips of the second upper screen.
[0020] In some embodiments of the present application, third sliding parts are respectively provided at both ends of the first lower screen and the second lower screen along the sliding direction, and third sliding grooves adapted to the third sliding parts are respectively provided in the first screening box and the second screening box.
[0021] In some embodiments of the present application, the first screening box and the second screening box are connected via a supporting spring.
[0022] In some embodiments of the present application, the vibration mechanism includes a vibration motor.
[0023] In some embodiments of the present application, the first sieve plate and the second sieve plate are both arranged at an incline, a first screening box near the lower end of the first sieve plate is provided with a switchable third discharge port, and a second screening box near the higher end of the second sieve plate is provided with a switchable third feed port.
[0024] In some embodiments of the present application, the crystallization screening device also includes a crushing box, a fourth feed port is provided above the crushing box, the fourth feed port is connected to the third discharge port, a fourth discharge port is provided below the crushing box, the fourth discharge port is connected to the third feed port, and a crushing roller is provided inside the crushing box.
[0025] Compared with the prior art, the advantages and positive effects of the utility model are as follows: by setting two layers of screening boxes and then vibrating the two layers of screening boxes with a vibration mechanism for screening, the glyoxylic acid solid can be screened into large particles, finished products and powder according to the particle diameter; by respectively setting push-pull openings on the first screening box and the second screening box, and setting scrapers at the push-pull openings, the glyoxylic acid powder adhered to the first sieve plate and the second sieve plate can be cleaned in the process of pulling out the first screening box and the second screening box, the cleaning process is simple and easy to operate, saves time and effort, reduces the difficulty of cleaning the screening device, improves the cleaning efficiency, saves cleaning time, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the utility model 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0027] Figure 1 A schematic diagram of the structure of an embodiment of the utility model crystallization screening device;
[0028] Figure 2 This is a schematic diagram of the structure of the first upper screen in an embodiment of the crystallization screening device of the utility model;
[0029] Figure 3 This is a schematic diagram of the structure of the first lower screen in an embodiment of the crystallization screening device of the utility model;
[0030] Figure 4 This is an enlarged structural diagram of the first sliding part in one embodiment of the crystallization screening device of the utility model;
[0031] Figure 5 This is an enlarged structural diagram of the first chute and the third sliding part in an embodiment of the crystallization screening device of the utility model;
[0032] Figure 6 It is a schematic diagram of the assembly of the first upper screen and the first lower screen in one embodiment of the crystallization screening device of the utility model;
[0033] Figure 7 This is a schematic diagram of the structure of the second upper screen in one embodiment of the crystallization screening device of the utility model;
[0034] Figure 8 It is a schematic diagram of the structure of the second lower screen in one embodiment of the crystallization screening device of the utility model.
[0035] Description of reference numerals:
[0036] 100, first screening box; 101, first sieve plate; 1011, first upper sieve; 1012, first sliding part; 1013, mesh; 1014, first lower sieve; 1015, first chute; 1016, third sliding part; 102, first feed port; 103, first discharge port; 104, third discharge port; 200, second screening box; 201, second sieve plate; 2011, second upper sieve; 2022, second sliding part; 2023, second lower sieve; 2024, second chute; 202, second feed port; 203, second discharge port; 204, third feed port; 300, vibration motor; 400, first scraper; 500, crushing box; 501, fourth feed port; 502, fourth discharge port; 503, crushing roller. DETAILED DESCRIPTION
[0037] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and the like 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0041] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.
[0042] like Figures 1 to 8 As shown, this embodiment provides a crystal screening device that can screen glyoxylic acid crystals according to particle size. After a period of use, the sieve plate can be cleaned without opening the cover of the screening box, thereby reducing dust pollution.
[0043] The crystallization screening device includes a first screening box 100, a second screening box 200 and a vibration mechanism, specifically:
[0044] A first feed port 102 is provided above the first screening box 100, and the glyoxylic acid crystals to be screened enter the first screening box 100 from the first feed port 102. A first sieve plate 101 is provided inside the first screening box 100, and the first sieve plate 101 is slidably connected to the inside of the first screening box 100. A first push-pull port (not shown in the figure) matching the size of the first sieve plate 101 is provided at the end of the first sieve plate 101 on the first screening box 100, a first scraper 400 is provided near the first push-pull port inside the first screening box 100, and the first scraper 400 is located below the end of the first sieve plate 101, and a first discharge port 103 is provided at the bottom of the first screening box 100, and the first discharge port 103 is in the shape of an inverted funnel, so that the glyoxylic acid crystals screened by the first sieve plate 101 can enter the second screening box 200.
[0045] The second screening box 200 is located below the first screening box 100, and the second screening box 200 is connected to the bottom of the first screening box 100. A second feed port 202 is provided above the second screening box 200, and the second feed port 202 is connected to the first discharge port 103. A second sieve plate 201 is provided in the second screening box 200, and the second sieve plate 201 is slidably connected inside the second screening box 200, and the sieve hole size of the second sieve plate 201 is smaller than the sieve hole size of the first sieve plate 101. A second push-pull opening (not shown in the figure) is provided on the second screening box 200 near the end of the second sieve plate 201, and a first scraper 400 is provided near the second push-pull opening inside the second screening box 200, and the first scraper 400 is located below the end of the second sieve plate 201, and a second discharge port 203 is provided on the second screening box 200.
[0046] A seed collecting box (not shown in the figure) is provided inside the second screening box 200 , and a box hole (not shown in the figure) is also provided near the bottom of the second screening box 200 .
[0047] The vibration mechanism is connected to the bottom of the second screening box 200. The vibration mechanism is used to vibrate the first screening box 100 and the second screening box 200 to perform screening operations. The vibration mechanism uses a vibration motor 300, which is easy to install.
[0048] When in use, the vibration mechanism is started to vibrate the first screening box 100 and the second screening box 200 as well as the first sieve plate 101 and the second sieve plate 201 inside, and the glyoxylic acid crystals to be screened are put into the first screening box 100 from the first feed port 102. The first sieve plate 101 screens the glyoxylic acid crystals during the vibration process. The glyoxylic acid crystals larger than the sieve holes of the first sieve plate 101 remain above the first sieve plate 101, and the glyoxylic acid crystals smaller than the sieve holes of the first sieve plate 101 fall through the first sieve plate 101 and then fall into the second screening box 200 through the first discharge port 103.
[0049] Then, the second sieve plate 201 in the second screening box 200 continues to screen the glyoxylic acid crystals. The glyoxylic acid crystals larger than the sieve holes of the second sieve plate 201 remain above the second sieve plate 201. The glyoxylic acid crystals remaining above the second sieve plate 201 can enter the packaging line as finished products through the second discharge port 203, and the glyoxylic acid crystals smaller than the sieve holes of the second sieve plate 201 fall into the seed crystal collection box. The operator can take out the seed crystal collection box from the box removal hole, and the powder collected in the seed crystal collection box can be used as seeds later.
[0050] After using for a period of time, the operator can pull out the first sieve plate 101 and the second sieve plate 201 from the first push-pull port and the second push-pull port and then push them back. During the pushing and pulling process, the first scraper 400 scrapes off the powder on the bottom of the first sieve plate 101 and the second sieve plate 201 respectively, thereby cleaning the first sieve plate 101 and the second sieve plate 201.
[0051] like Figures 2 to 6 As shown, the first sieve plate 101 includes a first upper sieve 1011 and a first lower sieve 1014. The first upper sieve 1011 extends downward at both ends along the sliding direction to form a first sliding portion 1012. The first lower sieve 1014 is provided with a first sliding groove 1015 adapted to the first sliding portion 1012 above both ends along the sliding direction. The first upper sieve 1011 is slidably connected to the first sliding groove 1015 of the first lower sieve 1014 through the first sliding portion 1012.
[0052] A second scraper (not shown in the figure) is provided on the inner wall of the first screening box 100 between the first upper screen 1011 and the first lower screen 1014 . The second scraper is used to scrape off powder at the bottom of the first upper screen 1011 . The first scraper 400 is used to scrape off powder at the bottom of the first lower screen 1014 .
[0053] The first lower screen 1014 extends downward at both ends along the sliding direction to form a third sliding portion 1016 , and a third sliding groove (not shown in the figure) adapted to the third sliding portion 1016 is provided in the first screening box 100 .
[0054] The first sieve plate 101 and the second sieve plate 201 have the same structure. The second sieve plate 201 includes a second upper sieve 2011 and a second lower sieve 2023. The second upper sieve 2011 extends downward at both ends along the sliding direction to form a second sliding portion 2022. The second lower sieve 2023 is provided with a second sliding groove 2024 adapted to the second sliding portion 2022 above both ends along the sliding direction. The second upper sieve 2011 is slidably connected to the second sliding groove 2024 of the second lower sieve 2023 through the second sliding portion 2022.
[0055] A second scraper is provided on the inner wall of the second screening box 200 between the second upper screen 2011 and the second lower screen 2023 . The first scraper 400 is used to scrape off powder at the bottom of the second upper screen 2011 , and the second scraper is used to scrape off powder at the bottom of the second lower screen 2023 .
[0056] The second lower screen 2023 extends downward at both ends along the sliding direction to form a third sliding portion 1016 , and a third sliding groove (not shown in the figure) adapted to the third sliding portion 1016 is provided in the second screening box 200 .
[0057] The first sieve plate 101 and the second sieve plate 201 respectively adopt a double-layer structure to ensure the screening quality and efficiency. The first scraper 400 and the second scraper respectively scrape the powder on the upper sieve and the lower sieve. The upper sieve and the lower sieve can be pushed and pulled for cleaning to ensure thorough cleaning.
[0058] The first upper screen 1011 includes a plurality of mesh strips 1013 arranged in parallel, the first lower screen 1014 also includes a plurality of mesh strips 1013 arranged in parallel, and the mesh strips 1013 of the first upper screen 1011 and the mesh strips 1013 of the first lower screen 1014 are staggered to form screen holes; the second upper screen 2011 includes a plurality of mesh strips 1013 arranged in parallel, the second lower screen 2023 also includes a plurality of mesh strips 1013 arranged in parallel, and the mesh strips 1013 of the second upper screen 2011 and the mesh strips 1013 of the second lower screen 2023 are staggered to form screen holes; the distance between the mesh strips 1013 of the first upper screen 1011 and the first lower screen 1014 is greater than the distance between the mesh strips 1013 of the second upper screen 2011 and the second lower screen 2023; the distance between the mesh strips 1013 of the upper screen and the lower screen can be adjusted according to the required specifications of glyoxylic acid crystals, and has a wide range of application.
[0059] The first screening box 100 and the second screening box 200 are connected by a support spring. The support spring can transmit vibration while providing support force and provide buffering force during vibration, thereby ensuring safe operation of the device and increasing its service life.
[0060] like Figure 1As shown, the first sieve plate 101 and the second sieve plate 201 are both arranged at an inclination, and a third discharge port 104 that can be switched is provided on the first sieve box 100 near the lower end of the first sieve plate 101, and a third feed port 204 that can be switched is provided on the second sieve box 200 near the higher end of the second sieve plate 201. The first sieve plate 101 and the second sieve plate 201 are arranged at an inclination to facilitate the collection of glyoxylic acid crystals above the sieve plates, and the crystals can be collected through the third discharge port 104 and the third feed port 204.
[0061] like Figure 1 As shown, the crystallization screening device also includes a crushing box 500, a fourth feed port 501 is provided above the crushing box 500, the fourth feed port 501 is connected to the third discharge port 104, a fourth discharge port 502 is provided below the crushing box 500, the fourth discharge port 502 is connected to the third feed port 204, and a crushing roller 503 is provided inside the crushing box 500.
[0062] When in use, the glyoxylic acid crystals that have not passed through the first sieve plate 101 in the first screening box 100 can enter the crushing box 500 through the third discharge port 104, the pipeline and the fourth feed port 501, and the crushing roller 503 crushes the large pieces of glyoxylic acid crystals. The crushed small pieces of glyoxylic acid crystals then enter the second screening box 200 through the fourth discharge port 502, the pipeline and the third feed port 204, and are then screened by the second sieve plate 201.
[0063] The utility model can clean the screen without opening the box cover of the screening box, thereby reducing dust pollution; before the improvement, at least two people were required to clean the screen, but after the improvement, only one person is required to operate, thereby improving production efficiency and reducing production costs.
[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.
Claims
1. A crystallization screening device, characterized in that: include: A first screening box, having a first feed port on its top, a first sieve plate in the first screening box, the first sieve plate being slidably connected to the inside of the first screening box, a first push-pull port being provided on the first screening box at the end of the first sieve plate, a first scraper being provided at a position near the first push-pull port inside the first screening box and the first scraper being located below the end of the first sieve plate, and a first discharge port being provided at the bottom of the first screening box; A second screening box is connected to the first screening box, a second feed port is provided above the second screening box, the second feed port is connected to the first discharge port, a second sieve plate is provided inside the second screening box, the second sieve plate is slidably connected inside the second screening box, the sieve hole size of the second sieve plate is smaller than the sieve hole size of the first sieve plate; a second push-pull port is provided on the second screening box near the end of the second sieve plate, a first scraper is provided inside the second screening box near the second push-pull port and the first scraper is located below the end of the second sieve plate, and a second discharge port is provided on the second screening box; A vibration mechanism is connected to the second screening box, and the vibration mechanism is configured to vibrate the first screening box and the second screening box to perform screening operations.
2. The crystallization screening device according to claim 1, characterized in that: The first sieve tray comprises: A first upper screen, with first sliding parts provided at both ends along the sliding direction; A first lower screen is slidably connected below the first upper screen, and first sliding grooves adapted to the first sliding portion are provided at both ends of the first lower screen along the sliding direction; A second scraper is provided on the inner wall of the first screening box between the first upper screen and the first lower screen.
3. The crystallization screening device according to claim 2, characterized in that: The second sieve tray comprises: A second upper screen, with second sliding parts provided at both ends along the sliding direction; A second lower screen is slidably connected below the second upper screen, and second sliding grooves adapted to the second sliding portion are provided at both ends of the second lower screen along the sliding direction; A second scraper is arranged on the inner wall of the second screening box between the second upper screen and the second lower screen.
4. The crystallization screening device according to claim 3, characterized in that: The first upper screen includes a plurality of mesh strips, the first lower screen also includes a plurality of mesh strips and is staggered with the mesh strips of the first upper screen; the second upper screen includes a plurality of mesh strips, the second lower screen also includes a plurality of mesh strips and is staggered with the mesh strips of the second upper screen.
5. The crystallization screening device according to claim 4, characterized in that: The first lower screen and the second lower screen are respectively provided with third sliding parts at both ends along the sliding direction, and the first screening box and the second screening box are respectively provided with third sliding grooves adapted to the third sliding parts.
6. The crystallization screening device according to claim 1, characterized in that: The first screening box and the second screening box are connected via a supporting spring.
7. The crystallization screening device according to claim 1, characterized in that: The vibration mechanism includes a vibration motor.
8. The crystallization screening device according to any one of claims 1 to 7, characterized in that: The first sieve plate and the second sieve plate are both arranged at an inclination, a first screening box near the lower end of the first sieve plate is provided with a switchable third discharge port, and a second screening box near the higher end of the second sieve plate is provided with a switchable third feed port.
9. The crystallization screening device according to claim 8, characterized in that: The crystallization screening device also includes a crushing box, a fourth feed port is provided above the crushing box, the fourth feed port is connected to the third discharge port, a fourth discharge port is provided below the crushing box, the fourth discharge port is connected to the third feed port, and a crushing roller is provided inside the crushing box.