Special equipment for controlling particle size of heptonitrile crystal particles

By designing specialized equipment for the feeding and mixing components, the problems of crushing and uneven conveying in the heptanonitrile crystallizing screen were solved, achieving uniform conveying and efficient screening, and improving the screening effect.

CN223733234UActive Publication Date: 2025-12-30ZIBO TONGYIZHAI CHEM CO LTD +1
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Patent Information

Application Number
CN202423047028.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-12-30
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

In the existing technology, the high intensity of vibration transmission force in the heptanonitrile crystallizer results in crystal breakage and poor screening effect. When crystals are manually poured in, they are unevenly conveyed and easily accumulate, increasing the screening time.

Method used

A specialized device comprising a feeding assembly, a stirring assembly, a screening assembly, and a support assembly was designed. Crystallization is conveyed by auger blades, stirred by a stirring shaft, and the screening plate oscillates slightly. Uniform conveying and efficient screening are achieved by using gravity and support springs to propel the crystallizer.

Benefits of technology

This method achieves uniform transport of heptanonitrile crystals, avoids clogging, improves screening efficiency, ensures effective separation of crystals of different particle sizes, and reduces screening time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is applicable to the technical field of heptonitrile crystal processing, and provides special equipment for controlling the particle size of heptonitrile crystal particles, which comprises a processing box, a feeding component, a stirring component, a screening component and a supporting component, the feeding assembly comprises a feeding pipeline, the end face of the feeding pipeline is fixedly connected with a fixing frame, the end face of the fixing frame is fixedly connected with a motor, the end face of the motor is connected with a power shaft, and the outer wall face of the power shaft is fixedly connected with a fixing belt wheel and auger blades. According to the heptonitrile crystal screening device, uniform conveying of heptonitrile crystals is achieved, blocking during discharging is avoided, meanwhile, the heptonitrile crystals can be stirred, and the heptonitrile crystal screening efficiency is improved; through the arrangement of the screening assembly and the supporting assembly, the effect that a screening plate shakes in a small range through gravity and the pushing acting force of a supporting spring is achieved, so that heptonitrile crystals with different particle sizes are separated, and follow-up processing and using of the heptonitrile crystals are facilitated.
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Description

Technical Field

[0001] This utility model belongs to the field of heptonitrile crystallization processing technology, and in particular relates to a special device for controlling the particle size of heptonitrile crystals. Background Technology

[0002] Heptanonitrile is an organic compound mainly used in organic synthesis. Chemically, it belongs to the nitrile class of compounds and has strong electrophilic properties, allowing it to react with various substances to produce a variety of chemical products. Due to its unique molecular structure, heptanonitrile has certain application potential in organic synthesis. Its chemical formula is C9H9N, and its molecular weight is 131.1745. This substance has certain application value in chemical research and industrial production. However, due to its special properties, safety precautions must be taken during use to avoid harm to the environment and human health. Before processing and use, heptanonitrile crystals need to be sieved to meet processing requirements.

[0003] Existing technology uses a screening machine to screen heptonitrile crystals. However, due to the strong force transmitted by vibration, the heptonitrile crystals are broken, resulting in poor screening effect. Moreover, manually pouring heptonitrile crystals into the screening machine cannot ensure uniform conveying of the crystals, which easily cause them to pile up and increase screening time. Utility Model Content

[0004] The purpose of this invention is to provide a special device for controlling the particle size of heptonitrile crystals. It aims to solve the problems of existing technology where heptonitrile crystals are screened by a screening machine. Due to the strong force transmitted by vibration, the heptonitrile crystals are broken, resulting in poor screening effect. In addition, manually pouring heptonitrile crystals into the screening machine cannot uniformly transport the crystals, which easily accumulates and increases the screening time.

[0005] This utility model is implemented as follows: a special device for controlling the particle size of heptanolyl crystals includes a processing box, a feeding assembly, a stirring assembly, a screening assembly, and a support assembly. The feeding assembly includes a feeding pipe, a fixed frame is fixedly connected to the end face of the feeding pipe, a motor is fixedly connected to the end face of the fixed frame, a power shaft is connected to the end face of the motor, a fixed pulley and an auger blade are fixedly connected to the outer wall of the power shaft, the stirring assembly includes a stirring shaft, a transmission pulley and a stirring rod are fixedly connected to the outer wall of the stirring shaft, a first belt is provided on the outer wall of the transmission pulley, the screening assembly includes a mounting plate, a screening plate is rotatably connected to the end face of the mounting plate, screening holes are opened on the end face of the screening plate, a shielding frame is fixedly connected to the free end of the screening plate, and a shielding plate is also fixedly connected to the end face of the screening plate, the support assembly includes an inclined plate and a support plate, a support column and a support spring are fixedly connected to the end face of the support plate, and a support rod is slidably connected to the inner wall of the support column.

[0006] As a further embodiment of this utility model, the outer wall of the processing box is fitted with a first sealing cover, a second sealing cover and a third sealing cover, and the end faces of the first sealing cover, the second sealing cover and the third sealing cover are all provided with handle grooves for disassembly.

[0007] As a further embodiment of this utility model, the outer wall of the feed pipe is fixedly connected to the processing box, and the outer wall of the feed pipe is also fixedly connected to a feed hopper for adding heptanolyl crystals.

[0008] As a further embodiment of this utility model, the end face of the stirring shaft is rotatably connected to the fixed frame, the outer wall surface of the stirring shaft is also rotatably connected to the processing box, and the transmission pulley is connected to the fixed pulley via a first belt.

[0009] As a further embodiment of this utility model, the outer wall surface of the mounting plate is fixedly connected to the processing box, the shape of the shielding frame is U-shaped, the outer wall surfaces of the inclined plate and the support plate are both fixedly connected to the processing box, and the end face of the inclined plate is fixedly connected to the support plate.

[0010] As a further embodiment of this utility model, the end face of the supporting spring is fixedly connected to the screening plate, the end face of the supporting rod is fixedly connected to the screening plate, and a collection box is installed on the inner wall of the processing box.

[0011] This utility model provides a special device for controlling the particle size of heptanolyl crystals. By setting up a feeding component and a stirring component, the heptanolyl crystals are uniformly conveyed, avoiding blockage during feeding. At the same time, the heptanolyl crystals are stirred, improving the efficiency of heptanolyl crystal screening. By setting up a screening component and a support component, the screening plate is made to shake slightly by gravity and the pushing force of the support spring, thereby separating heptanolyl crystals of different particle sizes, which is convenient for subsequent processing of heptanolyl crystals. Attached Figure Description

[0012] Figure 1 A three-dimensional schematic diagram of a special device for controlling the particle size of heptanolyl crystals provided in an embodiment of this utility model;

[0013] Figure 2 A partial cross-sectional view of the feeding assembly of a special device for controlling the particle size of heptanolyl crystals provided in an embodiment of this utility model;

[0014] Figure 3 A cross-sectional view of the processing box portion of a special device for controlling the particle size of heptanolyl crystals provided in an embodiment of this utility model;

[0015] Figure 4 A partial cross-sectional view of the support component of a special device for controlling the particle size of heptanoic acid crystals provided in an embodiment of this utility model.

[0016] In the attached diagram: 1. Processing box; 11. First sealing cover; 12. Second sealing cover; 13. Third sealing cover; 2. Feeding assembly; 21. Feeding pipe; 22. Fixing frame; 23. Motor; 24. Power shaft; 25. Fixed pulley; 26. Screwdriver blade; 201. Feeding hopper; 3. Mixing assembly; 31. Mixing shaft; 32. Transmission pulley; 33. First belt; 34. Mixing rod; 4. Screening assembly; 41. Mounting plate; 42. Screening plate; 43. Screening hole; 44. Baffle frame; 45. Baffle plate; 5. Support assembly; 51. Inclined plate; 52. Support plate; 53. Support column; 54. Support rod; 55. Support spring; 6. Collection box. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] like Figures 1 to 4 As shown, a special device for controlling the particle size of heptanolyl crystals according to an embodiment of the present invention includes a processing box 1, a feeding assembly 2, a stirring assembly 3, a screening assembly 4, and a support assembly 5. The feeding assembly 2 includes a feeding pipe 21, a fixed frame 22 fixedly connected to the end face of the feeding pipe 21, a motor 23 fixedly connected to the end face of the fixed frame 22, a power shaft 24 connected to the end face of the motor 23, and a fixed pulley 25 and an auger blade 26 fixedly connected to the outer wall of the power shaft 24. The stirring assembly 3 includes a stirring shaft 31, and the outer wall of the stirring shaft 31 is fixedly connected to... The assembly includes a transmission pulley 32 and a stirring rod 34. A first belt 33 is provided on the outer wall of the transmission pulley 32. The screening assembly 4 includes a mounting plate 41. A screening plate 42 is rotatably connected to the end face of the mounting plate 41. A screening hole 43 is opened on the end face of the screening plate 42. A shielding frame 44 is fixedly connected to the free end of the screening plate 42. A shielding plate 45 is also fixedly connected to the end face of the screening plate 42. The support assembly 5 includes an inclined plate 51 and a support plate 52. A support column 53 and a support spring 55 are fixedly connected to the end face of the support plate 52. A support rod 54 is slidably connected to the inner wall of the support column 53.

[0020] This utility model provides a special device for controlling the particle size of heptanolyl crystals. By setting up the feeding component 2 and the stirring component 3, the heptanolyl crystals are uniformly conveyed, avoiding blockage during feeding. At the same time, the heptanolyl crystals are stirred, improving the efficiency of heptanolyl crystal screening. By setting up the screening component 4 and the support component 5, the screening plate 42 is made to shake slightly by gravity and the pushing force of the support spring 55, thereby separating heptanolyl crystals of different particle sizes, which is convenient for subsequent processing of heptanolyl crystals.

[0021] In this embodiment of the invention, during use, the motor 23 is energized to output power, which drives the fixed pulley 25 and the auger blades 26 via the power shaft 24, pouring the heptanolyptonite crystals into the feed hopper 201. The heptanolyptonite crystals are moved and conveyed by the force of the auger blades 26, resulting in a good uniformity in the feeding speed of the heptanolyptonite crystals. When the heptanolyptonite crystals fall into the processing box 1, the screening plate 42 moves downward under the influence of the gravity of the falling heptanolyptonite crystals. At the same time, the support rod 54 extends and retracts into the support column 53, and the support spring 55 applies a counterforce to the screening plate 42. The directional force causes the screening plate 42 to sway slightly, avoiding high intensity of the force transmitted to the heptanolyl crystals. At the same time, it can control the screening of heptanolyl crystals of different particle sizes. The transmission pulley 32 is driven by the fixed pulley 25 through the first belt 33, which causes the stirring shaft 31 to drive the stirring rod 34 to rotate, stirring the heptanolyl crystals to avoid clogging. The heptanolyl crystals that meet the particle size requirements fall into the collection box 6. The screened heptanolyl crystals can be discharged through one end of the processing box 1 for collection, thereby controlling the particle size of the heptanolyl crystal processing.

[0022] like Figure 1 As shown, as a further embodiment of the present utility model, the outer wall of the processing box 1 is fitted with a first sealing cover 11, a second sealing cover 12 and a third sealing cover 13, and the end faces of the first sealing cover 11, the second sealing cover 12 and the third sealing cover 13 are all provided with handle grooves for disassembly.

[0023] The processing box 1 can be opened from different angles, which facilitates the installation of the collection box 6, the maintenance of the internal components of the processing box 1, or the collection of the separated heptanonitrile crystals.

[0024] like Figure 2 and Figure 3 As shown, in a further embodiment of the present invention, the outer wall of the feed pipe 21 is fixedly connected to the processing box 1, and the outer wall of the feed pipe 21 is also fixedly connected to a feed hopper 201 for adding heptonitrile crystals;

[0025] Specifically, as a further embodiment of this utility model, the end face of the stirring shaft 31 is rotatably connected to the fixed frame 22, the outer wall surface of the stirring shaft 31 is also rotatably connected to the processing box 1, and the transmission pulley 32 is connected to the fixed pulley 25 through the first belt 33.

[0026] It facilitates uniform feeding and conveying of heptonitrile crystals, resulting in better control of the heptonitrile crystal particle size during screening. It can also be stirred at the same time to prevent clogging of the heptonitrile crystals and improve screening efficiency.

[0027] like Figure 3 and Figure 4 As shown, in a further embodiment of this utility model, the outer wall of the mounting plate 41 is fixedly connected to the processing box 1, the shape of the shielding frame 44 is U-shaped, the outer walls of the inclined plate 51 and the support plate 52 are both fixedly connected to the processing box 1, and the end face of the inclined plate 51 is fixedly connected to the support plate 52.

[0028] Specifically, as a further embodiment of this utility model, the end face of the support spring 55 is fixedly connected to the screening plate 42, the end face of the support rod 54 is fixedly connected to the screening plate 42, and a collection box 6 is installed on the inner wall of the processing box 1.

[0029] Because the sieve plate 42 is subjected to the force of gravity and the pushing force of the supporting spring 55, it shakes slightly, which facilitates the collection of heptanolyl crystals that meet the requirements.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dedicated apparatus for controlling the particle size of crystalline particles of heptanenitrile, characterized by, The utility model provides a heptyl cyanide processing box, including processing box (1), feed assembly (2), stirring assembly (3), screening assembly (4) and support assembly (5), feed assembly (2) includes feed pipeline (21), the end surface fixedly connected with fixed frame (22) of feed pipeline (21), the end surface fixedly connected with motor (23) of fixed frame (22), the end surface is connected with power axle (24) of motor (23), the outer wall surface fixedly connected with fixed belt pulley (25) and auger blade (26) of power axle (24), stirring assembly (3) includes stirring axle (31), the outer wall surface fixedly connected with transmission belt pulley (32) and stirring rod (34) of stirring axle (31), the outer wall surface of transmission belt pulley (32) is provided with first belt (33), screening assembly (4) includes mounting plate (41), the end surface rotationally connected with screening board (42) of mounting plate (41), the end surface is opened with screening hole (43) of screening board (42), the free end fixedly connected with shelter frame (44) of screening board (42), the end surface is also fixedly connected with shelter board (45) of screening board (42), support assembly (5) includes inclined plate (51) and support plate (52), the end surface fixedly connected with support column (53) and support spring (55) of support plate (52), the inner wall surface slidingly connected with support rod (54) of support column (53).

2. The special equipment for controlling the particle size of heptylnitrile crystalline particles according to claim 1, characterized in that, The outer wall surface of the processing box (1) is clamped with a first sealing cover (11), a second sealing cover (12) and a third sealing cover (13), the end surface of the first sealing cover (11), the second sealing cover (12) and the third sealing cover (13) is provided with a handle groove for disassembly.

3. The special equipment for controlling the particle size of heptylnitrile crystalline particles according to claim 1, characterized in that, The outer wall surface of the feed pipeline (21) is fixedly connected with the processing box (1), and the outer wall surface of the feed pipeline (21) is further fixedly connected with a feed hopper (201) for adding heptyl cyanide crystals.

4. The special equipment for controlling the particle size of heptylnitrile crystalline particles according to claim 1, characterized in that, The end surface of the stirring axle (31) is rotationally connected with the fixed frame (22), and the outer wall surface of the stirring axle (31) is further rotationally connected with the processing box (1), and the transmission belt pulley (32) is in transmission connection with the fixed belt pulley (25) through the first belt (33).

5. The apparatus according to claim 1, wherein The outer wall surface of the mounting plate (41) is fixedly connected with the processing box (1), the shape of the shelter frame (44) is concave, and the outer wall surfaces of the inclined plate (51) and the support plate (52) are fixedly connected with the processing box (1), and the end surface of the inclined plate (51) is fixedly connected with the support plate (52).

6. The apparatus according to claim 1, wherein The end surface of the support spring (55) is fixedly connected with the screening board (42), the end surface of the support rod (54) is fixedly connected with the screening board (42), and the inner wall surface of the processing box (1) is provided with a collecting box (6).