Centrifugal machine for producing refined guanidine hydrochloride
By installing a circulating drying component in the centrifuge, ethanol can be filtered and recycled, and guanidine hydrochloride can be dried, thus solving the problems of ethanol waste and humidity, improving product quality and reducing production costs.
Patent Information
- Application Number
- CN202423027737.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing centrifuges lack ethanol recovery and drying functions, resulting in significant ethanol waste and high humidity in guanidine hydrochloride, which affects purity and product quality, and increases production costs.
A horizontal screw centrifuge including a circulating drying component was designed. The circulating tank and the fan are connected through solid and liquid phase discharge pipes to achieve ethanol filtration and recycling, and guanidine hydrochloride is dried using an air heating pipe.
This reduced ethanol waste, lowered the humidity of guanidine hydrochloride, improved product purity, reduced production costs, and met production needs.
Smart Images
Figure CN223556218U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of refined guanidine hydrochloride centrifuge, specifically to a refined guanidine hydrochloride production centrifuge. BACKGROUND
[0002] Guanidine hydrochloride is an organic matter, usually white or slightly yellow block, it has extensive application in medicine, pesticide, dye and other organic synthesis field, guanidine hydrochloride is the important raw material of manufacturing sulfonamides and folic acid, also can be used as the antistatic agent of synthetic fiber.
[0003] The production process of guanidine hydrochloride can include melting, dissolving, filtering, dehydrating and crystallizing steps, after these steps, centrifugal treatment can be carried out to further purify the product, for example, during the crystallization and refining process, the produced metformin hydrochloride can be separated by centrifugation to remove impurities in the mother liquor, and washed with ethanol to improve the quality, the existing centrifuge, although its centrifugal effect is good.
[0004] However, the existing centrifuge does not have ethanol recycling function and drying function, resulting in a large amount of waste of ethanol, and the overall humidity of guanidine hydrochloride is high, which affects its purity and increases the production cost, at the same time, reduces the quality of guanidine hydrochloride product, cannot meet the production demand, therefore, a refined guanidine hydrochloride production centrifuge is proposed to solve the problems in the above. UTILITY MODEL CONTENT
[0005] In view of the deficiencies in the prior art, the utility model provides a refined guanidine hydrochloride production centrifuge, which solves the problems of not having ethanol recycling function and drying function, resulting in a large amount of waste of ethanol, and the overall humidity of guanidine hydrochloride is high, which affects its purity and increases the production cost, at the same time, reduces the quality of guanidine hydrochloride product, cannot meet the production demand.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a refined guanidine hydrochloride production centrifuge, including horizontal screw centrifuge main part and box, the outside of horizontal screw centrifuge main part is provided with circulating drying assembly;
[0007] The circulating drying assembly includes solid phase discharge pipe and liquid phase discharge pipe fixedly connected on the left and right sides of the bottom of the horizontal screw centrifuge main part, the inside of the box is fixedly connected with circulating box, circulating pump and discharge guide rail, the inside of the circulating box is fixedly connected with filter screen, the right side of the circulating pump is fixedly connected with No.
[0008] Further, the liquid phase discharge pipe and the first circulating pipe are communicated with the circulating box, and the solid phase discharge pipe is communicated with the box body.
[0009] Further, the second circulating pipe is communicated with the horizontal screw centrifuge body, and the solid phase discharge pipe, the liquid phase discharge pipe, the first circulating pipe and the second circulating pipe are all stainless steel pipes.
[0010] Further, the inside of the box body is provided with a partition plate, and the bottom of the horizontal screw centrifuge body is provided with a support seat.
[0011] Further, the outside of the horizontal screw centrifuge body is fixedly connected with a machine shell, and the inner top wall of the machine shell is bonded with a sound-absorbing sponge pad.
[0012] Further, the outlet side of the discharging guide rail extends to the outside of the box body, the left side of the discharging guide rail is fixedly connected with an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected with a pushing plate.
[0013] Further, the circulating box and the front face of the box body are both fixedly installed with a sealing plate through screws.
[0014] Compared with the prior art, the centrifuge for refined guanidine hydrochloride production has the following beneficial effects:
[0015] The centrifuge for refined guanidine hydrochloride production, by setting the circulating drying assembly, realizes the filtration and recycling of ethanol, can fully dry the separated guanidine hydrochloride, reduces the waste of ethanol in the process of removing impurities, avoids the reduction of the purity of guanidine hydrochloride due to excessive humidity, and thus guarantees the product quality and reduces the production cost, and can better meet the production demand. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural section view of the utility model;
[0017] Figure 2 It is a structural perspective view of the utility model machine cover;
[0018] Figure 3 It is a structural side view of the utility model;
[0019] Figure 4 It is a structural front view of the utility model.
[0020] In the drawing: 1 horizontal screw centrifuge body, 2 box body, 3 solid phase discharge pipe, 4 liquid phase discharge pipe, 5 circulating box, 6 circulating pump, 7 discharging guide rail, 8 filter screen, 9 first circulating pipe, 10 second circulating pipe, 11 machine cover, 12 fan, 13 air heating pipe, 14 machine shell, 15 sound-absorbing sponge pad, 16 electric telescopic rod, 17 pushing plate, 18 sealing plate. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0022] Embodiment one:
[0023] Please refer to Figures 1 to 2 The utility model discloses a centrifuge for refined guanidine hydrochloride production, including horizontal screw centrifuge main part 1 and box 2, the outside of horizontal screw centrifuge main part 1 is provided with circulating drying assembly;
[0024] Circulating drying assembly includes the solid phase discharge pipe 3 and liquid phase discharge pipe 4 of fixed connection in the left and right sides of horizontal screw centrifuge main part 1 bottom, the inside fixed connection of box 2 has circulating tank 5, circulating pump 6 and discharge guide rail 7, the inside fixed connection of circulating tank 5 has filter screen 8, the right side fixed connection of circulating pump 6 has no. 1 circulating pipe 9, the left side fixed connection of circulating pump 6 has no. 2 circulating pipe 10, the top of box 2 is fixedly connected with machine hood 11, the top of machine hood 11 is fixedly connected with fan 12, the inside fixed connection of machine hood 11 has air heating pipe 13, when using, the ethanol containing guanidine hydrochloride impurities discharged via liquid phase discharge pipe 4 will be first filtered by the interception of filter screen 8, so that the impurities stay on filter screen 8, so that the impurities in ethanol are removed, and the ethanol after being filtered will be extracted by no. 1 circulating pipe 9 of circulating pump 6, and then be introduced into the inside of horizontal screw centrifuge main part 1 through no. 2 circulating pipe 10, to realize the filtration and recycling of ethanol, so that the waste amount of ethanol is smaller in the process of removing impurities, and the production cost is reduced.
[0025] Among them, the guanidine hydrochloride discharged into the inside of discharge guide rail 7 via solid phase discharge pipe 3 will be blown out by the cooperation of fan 12 and air heating pipe 13 to the outer surface of guanidine hydrochloride, to continuously blow hot air to the outer surface of guanidine hydrochloride, so as to fully dry guanidine hydrochloride, avoid that the humidity is too large to reduce the purity of guanidine hydrochloride, and further ensure the product quality.
[0026] It should be noted that horizontal screw centrifuge main part 1 is mainly composed of a rotating drum, a screw conveyor (also known as a screw pusher), a differential, and other components. When working, the guanidine hydrochloride to be separated enters the rotating drum through the feed pipe. Under the action of the centrifugal force generated by the high-speed rotation of the rotating drum, the solid particles, due to their greater density, are thrown towards the inner wall of the rotating drum and, under the action of gravity, form a solid layer, i.e., a solid ring layer. The liquid, due to its smaller density and weaker centrifugal force, forms a liquid layer inside the solid ring layer, i.e., a liquid ring layer.
[0027] It should be understood that the liquid phase discharge pipe 4 and the first circulating pipe 9 are connected with the circulating box 5, the solid phase discharge pipe 3 is connected with the box body 2, the second circulating pipe 10 is connected with the horizontal screw centrifuge main body 1, the solid phase discharge pipe 3, the liquid phase discharge pipe 4, the first circulating pipe 9 and the second circulating pipe 10 are all stainless steel pipes, the inside of the box body 2 is provided with a partition plate, and the bottom of the horizontal screw centrifuge main body 1 is provided with a support seat.
[0028] Example two:
[0029] Please refer to Figure 1 , Figure 3 and Figure 4 , on the basis of example one, the horizontal screw centrifuge main body 1 is fixedly connected with a machine shell 14 outside, the inner top wall of the machine shell 14 is bonded with a sound-absorbing sponge pad 15, by setting the machine shell 14 and the sound-absorbing sponge pad 15, the effect of protection and noise reduction is achieved.
[0030] Among them, the outlet side of the discharging guide rail 7 extends to the outside of the box body 2, the left side of the discharging guide rail 7 is fixedly connected with an electric telescopic rod 16, the telescopic end of the electric telescopic rod 16 is fixedly connected with a pushing plate 17, through the cooperation of the electric telescopic rod 16 and the pushing plate 17, the pushing plate 17 can be driven to move transversely inside the discharging guide rail 7, so that the guanidine hydrochloride inside the discharging guide rail 7 is automatically pushed out to the outside by the pushing mode, so as to realize automatic discharging.
[0031] In addition, the circulating box 5 and the box body 2 are both fixedly installed with a sealing plate 18 on the front side through screws, by setting the sealing plate 18, the work personnel can expose the filter screen 8 inside the circulating box 5 by disassembling the sealing plate 18, so as to clean the impurities accumulated thereon regularly.
[0032] The working principle of the above example is:
[0033] In use, the ethanol containing guanidine hydrochloride impurities discharged through the liquid phase discharge pipe 4 will first be intercepted and filtered by the filter screen 8, so that the impurities are retained on the filter screen 8, thereby removing the impurities in the ethanol, and the filtered ethanol will be extracted by the first circulating pipe 9 of the circulating pump 6, and then re-introduced into the inside of the horizontal screw centrifuge main body 1 through the second circulating pipe 10, so as to realize the filtration and recycling of the ethanol, wherein the guanidine hydrochloride discharged into the discharging guide rail 7 through the solid phase discharge pipe 3 will be continuously blown with hot air to the outer surface of the guanidine hydrochloride through the cooperation of the fan 12 and the air heating pipe 13, so as to fully dry the guanidine hydrochloride, in addition, the cooperation of the electric telescopic rod 16 and the pushing plate 17 can drive the pushing plate 17 to move transversely inside the discharging guide rail 7, so that the guanidine hydrochloride inside the discharging guide rail 7 is automatically pushed out to the outside by the pushing mode, so as to realize automatic discharging.
[0034] The mounting mode, the connecting mode or the setting mode disclosed in the embodiment are all common mechanical connecting modes, and can be implemented as long as the beneficial effects can be achieved, in addition, the electrical components appearing in the embodiment are all electrically connected with the master controller and the power supply, the master controller can be a conventional known device such as a computer which plays a control role, the control of the electrical components can be realized by simple programming by the person skilled in the art, and the existing disclosed power connection technology also belongs to the common knowledge in the art, so the specific structural composition and working principle of the embodiment will not be described too much.
[0035] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations 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. Without limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0036] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A centrifuge for producing refined guanidine hydrochloride, comprising a horizontal screw centrifuge main body (1) and a casing (2), characterized in that: The outside of the horizontal screw centrifuge body (1) is provided with a circulating drying assembly; The circulating drying assembly comprises solid phase discharge pipes (3) and liquid phase discharge pipes (4) fixedly connected to the left and right sides of the bottom of the horizontal screw centrifuge body (1), the inside of the box (2) is fixedly connected with a circulating box (5), a circulating pump (6) and a discharge guide rail (7), the inside of the circulating box (5) is fixedly connected with a filter screen (8), the right side of the circulating pump (6) is fixedly connected with a No. 1 circulating pipe (9), the left side of the circulating pump (6) is fixedly connected with a No. 2 circulating pipe (10), the top of the box (2) is fixedly connected with a machine cover (11), the top of the machine cover (11) is fixedly connected with a fan (12), and the inside of the machine cover (11) is fixedly connected with an air heating pipe (13).
2. The centrifuge for producing refined guanidine hydrochloride according to claim 1, characterized in that: The liquid phase discharge pipes (4) and the No. 1 circulating pipe (9) are connected with the circulating box (5), and the solid phase discharge pipes (3) are connected with the box (2).
3. The centrifuge for producing refined guanidine hydrochloride according to claim 1, characterized in that: The No. 2 circulating pipe (10) is connected with the horizontal screw centrifuge body (1), and the solid phase discharge pipes (3), the liquid phase discharge pipes (4), the No. 1 circulating pipe (9) and the No. 2 circulating pipe (10) are all stainless steel pipes.
4. The centrifuge for producing refined guanidine hydrochloride according to claim 1, characterized in that: The inside of the box (2) is provided with a partition plate, and the bottom of the horizontal screw centrifuge body (1) is provided with a support seat.
5. The centrifuge for producing refined guanidine hydrochloride according to claim 1, characterized in that: The outside of the horizontal screw centrifuge body (1) is fixedly connected with a machine shell (14), and the inner top wall of the machine shell (14) is bonded with a sound-absorbing sponge pad (15).
6. The centrifuge for producing refined guanidine hydrochloride according to claim 1, characterized in that: The outlet side of the discharge guide rail (7) extends to the outside of the box (2), the left side of the discharge guide rail (7) is fixedly connected with an electric telescopic rod (16), and the telescopic end of the electric telescopic rod (16) is fixedly connected with a pushing plate (17).
7. The centrifuge for producing refined guanidine hydrochloride according to claim 1, characterized in that: The front sides of the circulating box (5) and the box (2) are both fixedly installed with a sealing plate (18) through screws.