Acid mixing proportioning device for furfural processing
By designing a premixing ratio and a mixing and discharging component, the problem of discontinuous dilute sulfuric acid ratio was solved, enabling a continuous supply of dilute sulfuric acid, improving the production efficiency and stability of furfural processing, and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG GAOCHENG DISTRICT KANGFENG CHEM CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, the proportioning process of dilute sulfuric acid cannot be carried out continuously, leading to production interruptions. Frequent manual monitoring increases costs and errors, affecting the continuity and stability of production.
A mixing device for furfural processing was designed, comprising a premixing and proportioning component and a stirring and discharging component. The device utilizes a high-speed motor and a stirring motor to achieve continuous mixing of raw materials and dilute sulfuric acid. Through the coordinated operation of components such as a conveying auger, dispersing holes, and spiral blades, uniform mixing and rapid discharge are ensured.
This enabled a continuous supply of dilute sulfuric acid, avoiding production interruptions, improving production efficiency, reducing labor costs, and ensuring the efficient operation of furfural processing.
Smart Images
Figure CN224236744U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the technical field of furfural processing, and more specifically, to a proportioning device for acid mixing in furfural processing. Background Technology
[0002] In the furfural processing industry, the production process of converting corn cob raw materials into furfural involves several key steps, among which raw material pretreatment and the use of dilute sulfuric acid are crucial. First, the corn cob raw materials are conveyed to a crusher via a conveyor belt for crushing. Then, the crushed raw materials enter an acid mixing device and are mixed with dilute sulfuric acid with a concentration of 6-8% to achieve the acid mixing effect, laying the foundation for the subsequent hydrolysis reaction.
[0003] However, the storage and supply methods of dilute sulfuric acid have become a bottleneck restricting the improvement of production efficiency. Currently, due to the difficulty in long-term stable storage of dilute sulfuric acid, the industry generally adopts the method of diluting concentrated sulfuric acid to the required concentration. This traditional process has many drawbacks: First, the mixing process cannot be carried out continuously. Every time a tank of mixed dilute sulfuric acid is used up, production needs to be stopped and the mixing process repeated, which leads to production interruption and greatly limits overall production efficiency. For example, in some small-scale furfural processing plants, frequent mixing operations significantly shorten the actual daily production time, making it difficult to increase output. Second, the manual monitoring burden is heavy. During the production process, it is necessary to assign dedicated personnel to constantly monitor the remaining amount of dilute sulfuric acid in order to perform the mixing operation in a timely manner. This not only consumes a lot of manpower and increases labor costs, but manual observation is also prone to errors, which may lead to untimely supply of dilute sulfuric acid, further affecting the continuity and stability of production.
[0004] With the continuous growth of market demand for furfural, improving production efficiency and reducing production costs have become crucial for enterprise competitiveness. Therefore, developing a process or equipment capable of continuous supply of dilute sulfuric acid without frequent manual monitoring is urgently needed. This is of great significance for improving the economic benefits of furfural producers, enhancing their market competitiveness, and promoting the sustainable development of the entire industry. Utility Model Content
[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a proportioning device for mixing acid in furfural processing, which solves the technical problem that the proportioning process in the prior art cannot be carried out continuously. Every time a tank of proportioned dilute sulfuric acid is used up, production needs to be stopped and the proportioning work needs to be repeated, which leads to interruption of the production process and greatly limits the overall production efficiency.
[0006] According to one aspect, at least one embodiment of this disclosure provides a proportioning device for acid mixing in furfural processing, comprising:
[0007] The tank body and several supports, all of which are fixed to the bottom of the tank body;
[0008] A top plate and a mixing and discharging assembly, wherein the top plate is disposed on the top of the tank body and the mixing and discharging assembly is disposed on the top plate and the tank body;
[0009] The feed pipe is disposed on the outside of the tank body, and the premixing component is disposed in the feed pipe and the tank body;
[0010] The premixing component includes a feeding hopper connected to the feeding pipe. A conveying auger is installed inside the feeding pipe. A dispersion hole is opened at one end of the feeding pipe. An outer cover is installed at the top of the feeding pipe. An inlet pipe is installed on the outer cover. The upper end of the inlet pipe is located outside the tank.
[0011] As a further technical solution, the top of the feeding pipe is provided with several inflow holes, which are connected to the outer cover. The top of the feeding hopper is provided with a high-speed motor, and the output end of the high-speed motor is provided with a dispersing knife holder.
[0012] As a further technical solution, the mixing and discharging assembly includes a pair of telescopic cylinders, which are disposed on the outer wall of the tank. The output end of the telescopic cylinders is connected to the top plate, and a mixing motor is installed on the top plate.
[0013] As a further technical solution, the output end of the stirring motor is provided with a central shaft, a dispersing frame is provided on the central shaft, a stirring frame is provided at the lower end of the central shaft, and a sealing block is provided at the lower end of the central shaft.
[0014] As a further technical solution, the sealing block is slidably attached to the inner wall of the discharge section of the tank, a discharge pipe is provided on one side of the bottom of the tank, and a spiral blade is provided on the central shaft.
[0015] As a further technical solution, the diameter of the spiral blade is matched with the inner diameter of the bottom inner wall of the tank.
[0016] As a further technical solution, the top of the tank is provided with several stabilizing rods, which are connected to the top plate in a movable assembly.
[0017] As a further technical solution, the upper surface of the sealing block is an inclined structural surface, and the opening end of the discharge pipe is inclined downward.
[0018] The beneficial effects of the embodiments disclosed herein are as follows:
[0019] 1. The beneficial effect of the premixing component in this disclosure is that the high-speed motor and the dispersing blade break down the raw materials, increasing the contact area between the raw materials and dilute sulfuric acid. The coordination of the conveying auger, dispersing holes, outer cover, inflow hole and inlet pipe realizes the continuous mixing of raw materials and dilute sulfuric acid. This solves the problem of discontinuous traditional proportioning process, avoids production interruption, improves production efficiency through continuous premixing, reduces waiting time for proportioning, reduces labor costs, and ensures the efficient operation of the furfural processing acid mixing link.
[0020] 2. The beneficial effects of the mixing and discharging assembly in this disclosure are as follows: the telescopic cylinder controls the lifting and lowering of the top plate, which is convenient for operation; the mixing motor drives the dispersing frame and the mixing frame, which can fully mix the raw materials; the sealing block ensures that the tank is sealed during mixing to prevent leakage; the spiral blades cooperate with the discharge pipe to achieve rapid discharge; the matching spiral blade diameter and the inclined sealing block and discharge pipe design further improve the discharge efficiency. This assembly ensures efficient mixing and discharge, meeting the production needs of furfural processing. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0022] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;
[0023] Figure 2 This is an isometric drawing of the present disclosure;
[0024] Figure 3 This is an isometric sectional view of the present disclosure;
[0025] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;
[0026] In the diagram: 1. Tank body; 2. Support frame; 3. Top plate; 4. Feed pipe; 5. Premixing and proportioning component; 5-1. Feed hopper; 5-2. Conveying auger; 5-3. Dispersion hole; 5-4. Outer cover; 5-5. Inlet pipe; 5-6. Inflow hole; 5-7. High-speed motor; 5-8. Dispersion blade holder; 6. Mixing and discharging component; 6-1. Telescopic cylinder; 6-2. Mixing motor; 6-3. Central shaft; 6-4. Dispersion frame; 6-5. Mixing frame; 6-6. Sealing block; 6-7. Discharge pipe; 6-8. Spiral blade; 7. Stabilizing rod. Detailed Implementation
[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] like Figures 1-4 As shown, it illustrates a proportioning device for acid mixing in furfural processing according to an embodiment of this disclosure, comprising:
[0034] The tank body 1 and several supports 2, all of which are fixed to the bottom of the tank body 1;
[0035] The top plate 3 and the mixing and discharging assembly 6 are provided. The top plate 3 is disposed on the top of the tank body 1, and the mixing and discharging assembly 6 is disposed on the top plate 3 and the tank body 1.
[0036] The feed pipe 4 and the premixing component 5 are provided, wherein the feed pipe 4 is located outside the tank 1 and the premixing component 5 is located inside the feed pipe 4 and the tank 1.
[0037] The premixing component 5 includes a feeding hopper 5-1 connected to the feeding pipe 4. A conveying auger 5-2 is installed inside the feeding pipe 4. A dispersion hole 5-3 is opened at one end of the feeding pipe 4. An outer cover 5-4 is installed on the top of the feeding pipe 4. An inlet pipe 5-5 is installed on the outer cover 5-4. The upper end of the inlet pipe 5-5 is located outside the tank body 1. Several inflow holes 5-6 are opened on the top of the feeding pipe 4. The inflow holes 5-6 are connected to the outer cover 5-4. A high-speed motor 5-7 is installed on the top of the feeding hopper 5-1. A dispersion knife holder 5-8 is installed at the output end of the high-speed motor 5-7.
[0038] In some examples, during the acid mixing process of furfural processing, a premixing component 5 is designed to achieve raw material crushing and effective proportioning with dilute sulfuric acid. This component includes a feeding hopper 5-1 connected to the feed pipe 4, which is the inlet for raw material input. A conveying auger 5-2 installed inside the feed pipe 4 can transport the raw material fed into the feeding hopper 5-1 along the feed pipe 4. A dispersion hole 5-3 opened at one end of the feed pipe 4 allows the conveyed raw material to flow out dispersedly. An outer cover 5-4 installed at the top of the feed pipe 4, several inflow holes 5-6 connected to the outer cover 5-4, and an inlet pipe 5-5 installed on the outer cover 5-4 provide channels for the addition of liquid raw materials such as dilute sulfuric acid. Dilute sulfuric acid enters the outer cover 5-4 through the inlet pipe 5-5. -4, then flows into the feed pipe 4 through the inlet hole 5-6, and is initially mixed with the raw materials being conveyed. The high-speed motor 5-7 set at the top of the feeding hopper 5-1 has a dispersing blade 5-8 at its output end that rotates at high speed when the high-speed motor 5-7 is started. This can break the raw materials fed into the feeding hopper 5-1, making the raw material particles smaller and increasing the contact area with dilute sulfuric acid, thereby completing the proportioning process more fully. Through the coordinated work of components such as the feeding hopper 5-1, the conveying auger 5-2, the dispersing hole 5-3, the outer cover 5-4, the inlet pipe 5-5, the inlet hole 5-6, the high-speed motor 5-7, and the dispersing blade 5-8, the premixing component 5 can effectively break the raw materials and mix them with dilute sulfuric acid to achieve accurate proportioning, providing a good foundation for subsequent stirring and mixing.
[0039] like Figures 1-4As shown in the figure, the mixing and discharging assembly 6 in this embodiment includes a pair of telescopic cylinders 6-1. The telescopic cylinders 6-1 are disposed on the outer wall of the tank body 1. The output end of the telescopic cylinders 6-1 is connected to the top plate 3. A mixing motor 6-2 is installed on the top plate 3. A central shaft 6-3 is disposed at the output end of the mixing motor 6-2. A dispersing frame 6-4 is disposed on the central shaft 6-3. A mixing frame 6-5 is disposed at the lower end of the central shaft 6-3. A sealing block 6-6 is disposed at the lower end of the central shaft 6-3. The sealing block 6-6 slides against the inner wall of the discharge part of the tank body 1. A discharge pipe 6-7 is disposed on one side of the bottom of the tank body 1. A spiral blade 6-8 is disposed on the central shaft 6-3.
[0040] In some examples, during the acid mixing process of furfural processing, a mixing and discharging assembly 6 is designed to thoroughly mix and agitate the pre-mixed raw materials and achieve rapid discharge. This assembly includes a pair of telescopic cylinders 6-1 mounted on the outer wall of the tank 1, with their output ends connected to the top plate 3. When the telescopic cylinders 6-1 are activated, they can push the top plate 3 up and down. A stirring motor 6-2 is mounted on the top plate 3, and a dispersing frame 6-4 and a stirring frame 6-5 are mounted on the central shaft 6-3 at its output end. When the stirring motor 6-2 is activated, the central shaft 6-3 drives the dispersing frame 6-4 and the stirring frame 6-5 to rotate at high speed. The dispersing frame 6-4 can further disperse the raw materials, making the raw materials more uniformly mixed, while the stirring frame 6-5 agitates the raw materials, ensuring that all raw materials are thoroughly mixed and achieving a good mixing effect. The sealing block 6-6 at the lower end of the spindle 6-3 ensures the sealing of the tank 1 during mixing and stirring, preventing raw material leakage. The outer side is equipped with a discharge pipe 6-7 and a spiral blade 6-8 on the spindle 6-3. After mixing and stirring are completed, the top plate 3 is pushed downwards by the telescopic cylinder 6-1, and the sealing block 6-6 descends to open the discharge pipe 6-7. The spiral blade 6-8 pushes the mixed raw material outwards, achieving rapid discharge. Through the coordinated work of components such as the telescopic cylinder 6-1, top plate 3, stirring motor 6-2, spindle 6-3, dispersing frame 6-4, stirring frame 6-5, and sealing block 6-6, the mixing and discharge assembly 6 can effectively mix and stir, and push the material outwards for rapid discharge, meeting the mixing and discharge requirements during furfural processing and acid mixing, thus improving production efficiency.
[0041] For example, such as Figure 3 As shown, the diameter of the spiral blades 6-8 matches the inner diameter of the inner wall at the bottom of the tank 1.
[0042] In some examples, by matching the dimensions, the spiral blades 6-8 are able to expel the material quickly outward when rotating, which can speed up the discharge efficiency.
[0043] For example, such as Figure 1As shown, the top of the tank body 1 is provided with several stabilizing rods 7, and the stabilizing rods 7 are movably connected to the top plate 3.
[0044] In some examples, by setting a stabilizing rod 7 connected to the top plate 3, the top plate 3 slides more stably during the lifting and lowering process, and there will be no shaking.
[0045] For example, such as Figure 3 As shown, the upper surface of the sealing block 6-6 is an inclined structural surface, and the opening end of the discharge pipe 6-7 is inclined downward.
[0046] In some examples, by tilting the structural surface, the material can be discharged more quickly, improving the discharge efficiency.
[0047] In actual use: concentrated sulfuric acid and water are added to the device in proportion through inlet pipe 5-5 and feeding hopper 5-1 respectively. High-speed motor 5-7 drives dispersing blade 5-8 to crush and initially mix the raw materials. Conveying auger 5-2 conveys the mixed raw materials along feed pipe 4 and disperses them into tank 1 through dispersing hole 5-3. Telescopic cylinder 6-1 is activated to raise top plate 3. Stirring motor 6-2 drives central shaft 6-3, dispersing frame 6-4 and stirring frame 6-5 to further stir and mix the raw materials. After mixing is completed, telescopic cylinder 6-1 pushes top plate 3 down, sealing block 6-6 opens discharge pipe 6-7, and spiral blade 6-8 extrudes the mixed raw materials.
[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A proportioning device for mixing acid in furfural processing, characterized in that, include: The tank (1) and several supports (2) are fixed to the bottom of the tank (1); The top plate (3) and the mixing and discharging assembly (6) are provided on the top of the tank body (1) and the mixing and discharging assembly (6) are provided on the top plate (3) and the tank body (1). Feed pipe (4) and premixing component (5), wherein the feed pipe (4) is disposed outside the tank (1) and the premixing component (5) is disposed in the feed pipe (4) and the tank (1); The premixing component (5) includes a feeding hopper (5-1), which is connected to the feeding pipe (4). A conveying auger (5-2) is installed inside the feeding pipe (4). A dispersion hole (5-3) is opened at one end of the feeding pipe (4). An outer cover (5-4) is installed on the top of the feeding pipe (4). An inlet pipe (5-5) is installed on the outer cover (5-4). The upper end of the inlet pipe (5-5) is located outside the tank (1).
2. The proportioning device for acid mixing in furfural processing according to claim 1, characterized in that, The top of the feed pipe (4) is provided with several inflow holes (5-6), which are connected to the outer cover (5-4). The top of the feeding hopper (5-1) is provided with a high-speed motor (5-7), and the output end of the high-speed motor (5-7) is provided with a dispersing knife holder (5-8).
3. The proportioning device for acid mixing in furfural processing according to claim 1, characterized in that, The mixing and discharging assembly (6) includes a pair of telescopic cylinders (6-1), which are disposed on the outer wall of the tank (1). The output end of the telescopic cylinder (6-1) is connected to the top plate (3), and a mixing motor (6-2) is installed on the top plate (3).
4. The proportioning device for acid mixing in furfural processing according to claim 3, characterized in that, The output end of the stirring motor (6-2) is provided with a central shaft (6-3), a dispersing frame (6-4) is provided on the central shaft (6-3), a stirring frame (6-5) is provided at the lower end of the central shaft (6-3), and a sealing block (6-6) is provided at the lower end of the central shaft (6-3).
5. The proportioning device for acid mixing in furfural processing according to claim 4, characterized in that, The sealing block (6-6) slides against the inner wall of the discharge section of the tank (1), and a discharge pipe (6-7) is provided on one side of the bottom of the tank (1). A spiral blade (6-8) is provided on the central shaft (6-3).
6. The proportioning device for acid mixing in furfural processing according to claim 5, characterized in that, The diameter of the spiral blades (6-8) matches the inner diameter of the inner wall at the bottom of the tank (1).
7. The proportioning device for acid mixing in furfural processing according to claim 1, characterized in that, The top of the tank (1) is provided with several stabilizing rods (7), which are movably connected to the top plate (3).
8. The proportioning device for acid mixing in furfural processing according to claim 5, characterized in that, The upper surface of the sealing block (6-6) is an inclined structural surface, and the opening end of the discharge pipe (6-7) is inclined downward.