Efficient gas-slag separator suitable for furfural processing

Abstract

The utility model relates to the technical field of furfural processing, and provides a high-efficiency gas-slag separator suitable for furfural processing, which comprises a barrel, a feeding component is mounted at the left end of the barrel, a shell is fixedly connected onto the barrel, a discharge pipe is fixedly connected to the bottom end of the barrel, and a gas-slag separator is mounted on the bottom end of the barrel. The lower end of the discharging pipe extends to the position below the shell, a fixing box is fixedly connected to the top end of the supporting frame, a winding assembly is installed at the top end of the supporting frame, a condensation assembly is installed at the right end of the fixing box, and a servo motor drives a driving roller to rotate through a driving shaft to feed permeable membranes. Meanwhile, the driving shaft drives the driven shaft to rotate through the synchronizing mechanism, and the driven shaft drives the driven roller to wind the permeable membrane, so that the permeable membrane is convenient to replace, the gas-slag separation efficiency is kept, the separation efficiency and effect are improved, and the purity of the obtained furfural is ensured. By means of the technical scheme, the technical problem that in the prior art, furfural steam generated by furfural processing is insufficient in purity is solved.

Description

Technical Field

[0001] This utility model relates to the field of furfural processing technology, specifically to a high-efficiency gas-slag separator suitable for furfural processing. Background Technology

[0002] Furfural is an organic compound, a colorless, transparent, oily liquid with a distinctive odor similar to benzaldehyde. The general production process of furfural involves raw material washing, crushing, hydrolysis, dehydration, initial distillation, fractional distillation, neutralization, and rectification. After rectification, furfural is obtained as the finished product, along with furfural residue. In traditional processes, furfural residue is mostly sent directly to an incinerator for combustion. However, with technological advancements, modified sulfuric acid or inorganic salt methods are now used, allowing furfural residue to be used directly as compound fertilizer. Furthermore, furfural residue is mainly composed of cellulose, which can be hydrolyzed to produce glucose. Glucose can be fermented to produce alcohol. Furfural residue can also be used to prepare activated carbon. Therefore, furfural residue has high recycling value. Before recycling furfural, the small amount of tail gas present in the residue needs to be discharged.

[0003] In the existing technology, high-efficiency gas-slag separators suitable for furfural processing produce furfural residue (containing cellulose, lignin, etc.) during furfural production (such as the hydrolysis of raw materials like corn cobs), which may also be accompanied by waste gas (such as water vapor, acidic gases, volatile organic compounds, etc.). The furfural vapor or water vapor remaining in the furfural residue can be reused, but the purity of the furfural vapor cannot often be guaranteed, and impurity gases are often mixed in. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a high-efficiency gas-slag separator suitable for furfural processing, which solves the technical problem of insufficient purity of furfural vapor generated in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides a high-efficiency gas-slag separator suitable for furfural processing, comprising: a cylinder, a feeding assembly installed at the left end of the cylinder, a shell fixedly connected to the cylinder, and a discharge pipe fixedly connected to the bottom end of the cylinder, the lower end of the discharge pipe extending below the shell;

[0006] A support frame is fixedly connected to the top of the cylinder, a fixed box is fixedly connected to the top of the support frame, a winding assembly is installed at the top of the support frame, and a condensation assembly is installed at the right end of the fixed box.

[0007] For example, in at least one embodiment of this utility model, a high-efficiency gas-slag separator suitable for furfural processing is provided, which further includes: the winding assembly includes a servo motor, the top of the support frame is fixedly connected to the servo motor, the output end of the servo motor is fixedly mounted with a drive shaft, the top of the support frame and located to the left of the servo motor is fixedly connected to a fixing plate, the right end of the fixing plate is rotatably connected to the left end of the drive shaft, and a drive roller is fixedly connected to the drive shaft.

[0008] For example, in at least one embodiment of this utility model, a high-efficiency gas-slag separator suitable for furfural processing is provided, which further includes: a second fixed plate fixedly connected to the top of the support frame and located behind the first fixed plate; a driven shaft rotatably connected to the right end of the second fixed plate; a driven roller fixedly connected to the driven shaft; and a synchronization mechanism fixedly installed on the drive shaft and located to the left end of the drive roller; the rear end of the synchronization mechanism is movably connected to the driven shaft.

[0009] For example, in at least one embodiment of this utility model, a high-efficiency gas-slag separator suitable for furfural processing is provided, which further includes: a permeable membrane wound on the active roller, the rear end of the permeable membrane passing through the fixed box and wound on the driven roller, and a sealing strip fixedly connected to the inner wall of the fixed box and above the permeable membrane, the lower end of the sealing strip contacting the top end of the permeable membrane.

[0010] For example, in at least one embodiment of this utility model, a high-efficiency gas-slag separator suitable for furfural processing is provided, which further includes: the feeding assembly includes a feeding pipe, the left end of the cylinder is fixedly connected to the feeding pipe, the left end of the feeding pipe is fixedly connected to a drive motor, the output end of the drive motor extends into the inside of the feeding pipe and is fixedly mounted with a rotating shaft, a propeller blade is fixedly connected to the rotating shaft, and a funnel is fixedly connected to the feeding pipe.

[0011] For example, in at least one embodiment of this utility model, a high-efficiency gas-slag separator suitable for furfural processing is provided, which further includes: the condensation component includes a connecting pipe, the right end of the fixed box is fixedly connected to the connecting pipe, the right side of the cylinder is provided with a collection box, the end of the connecting pipe extends into the interior of the collection box, a condenser is fixedly connected to the connecting pipe, the upper end of the condenser is fixedly connected to a liquid inlet pipe, and the lower end of the condenser is fixedly connected to a liquid outlet pipe.

[0012] For example, in at least one embodiment of this utility model, a high-efficiency gas-slag separator suitable for furfural processing is provided, which further includes: a connecting pipe fixedly connected to the top of the cylinder, the upper end of the connecting pipe extending into the interior of the fixed box, and a switch valve fixedly installed on the connecting pipe.

[0013] For example, in at least one embodiment of this utility model, a high-efficiency gas-slag separator suitable for furfural processing is provided, which further includes: a steam pipe fixedly connected to the right end of the outer shell, and a drain pipe fixedly connected to the lower end of the outer shell and to the left of the discharge pipe.

[0014] The beneficial effects of the embodiments of this utility model are as follows:

[0015] In this invention, by providing a winding assembly, the permeate membrane can be easily replaced under the action of a synchronization mechanism, thus maintaining the gas-slag separation efficiency. The distillation process can remove some solid impurities, high-boiling-point substances, and components that may contaminate or damage the permeate membrane from the furfural slag gas. The sequence of distillation followed by membrane separation can give full play to the advantages of distillation in large-scale separation and concentration, achieving complementary advantages between the two and reducing the overall process cost. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a high-efficiency gas-slag separator suitable for furfural processing in one embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the internal structure of the cylinder in the embodiment;

[0019] Figure 3 for Figure 1 A schematic diagram of the feeding assembly in the embodiment;

[0020] Figure 4 for Figure 1 A schematic diagram of the winding assembly in the embodiment;

[0021] Figure 5 for Figure 1 A schematic diagram of the internal structure of the fixed box in the embodiment;

[0022] In the diagram: 1. Cylinder; 2. Outer shell; 3. Feeding assembly; 31. Feeding pipe; 32. Drive motor; 33. Rotating shaft; 34. Propeller blade; 35. Funnel; 4. Support frame; 5. Fixing box; 6. Winding assembly; 61. Servo motor; 62. Drive shaft; 63. Fixing plate one; 64. Synchronization mechanism; 65. Fixing plate two; 66. Driven shaft; 67. Driven roller; 68. Driven roller; 7. Permeable membrane; 8. Sealing strip; 9. Condensation assembly; 91. Connecting pipe; 92. Condensation pipe; 93. Liquid inlet pipe; 94. Liquid outlet pipe; 95. Collection box; 10. Connecting pipe; 11. Switch valve; 12. Steam pipe; 13. Drain pipe; 14. Discharge pipe. Detailed Implementation

[0023] The present invention 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 invention and not intended to limit it.

[0024] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly 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.

[0027] 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 only for the convenience of description and simplification of operation, and do not 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 utility model.

[0028] 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.

[0029] like Figures 1-5 As shown, this invention illustrates a high-efficiency gas-slag separator suitable for furfural processing according to one embodiment of the present invention, comprising: a cylinder 1, a feeding assembly 3 installed at the left end of the cylinder 1, a shell 2 fixedly connected to the cylinder 1, a discharge pipe 14 fixedly connected to the bottom end of the cylinder 1, the lower end of the discharge pipe 14 extending to the bottom of the shell 2; a support frame 4, a support frame 4 fixedly connected to the top end of the cylinder 1, a fixed box 5 fixedly connected to the top end of the support frame 4, a winding assembly 6 installed at the top end of the support frame 4, a condensation assembly 9 installed at the right end of the fixed box 5, a connecting pipe 10 fixedly connected to the top end of the cylinder 1, the upper end of the connecting pipe 10 extending into the interior of the fixed box 5, a switch valve 11 fixedly installed on the connecting pipe 10, a steam pipe 12 fixedly connected to the right end of the shell 2, and a drain pipe 13 fixedly connected to the lower end of the shell 2 and to the left of the discharge pipe 14.

[0030] For example, such as Figure 4 As shown, the winding assembly 6 includes a servo motor 61. The servo motor 61 is fixedly connected to the top of the support frame 4. A drive shaft 62 is fixedly mounted on the output end of the servo motor 61. A first fixing plate 63 is fixedly connected to the top of the support frame 4 and to the left of the servo motor 61. The right end of the first fixing plate 63 is rotatably connected to the left end of the drive shaft 62. A drive roller 67 is fixedly connected to the drive shaft 62. A second fixing plate 65 is fixedly connected to the top of the support frame 4 and behind the first fixing plate 63. A driven shaft 66 is rotatably connected to the right end of the second fixing plate 65. A driven roller 68 is fixedly connected to the driven shaft 66 and to the left of the drive roller 67. A synchronization mechanism 64 is fixedly installed, with its rear end movably connected to a driven shaft 66. A permeable membrane 7 is wound on a drive roller 67, with its rear end passing through a fixed box 5 and wound onto a driven roller 68. A sealing strip 8 is fixedly connected to the inner wall of the fixed box 5 above the permeable membrane 7, with the lower end of the sealing strip 8 contacting the top end of the permeable membrane 7. A servo motor 61 drives the drive roller 67 to rotate via a drive shaft 62 to feed the permeable membrane 7. At the same time, the drive shaft 62 drives the driven shaft 66 to rotate via the synchronization mechanism 64, and the driven shaft 66 drives the driven roller 68 to wind up the permeable membrane 7, facilitating the replacement of the permeable membrane 7.

[0031] For example, such as Figure 2As shown, the condenser assembly 9 includes a connecting pipe 91. The connecting pipe 91 is fixedly connected to the right end of the fixed box 5. A collection box 95 is provided on the right side of the cylinder 1. The end of the connecting pipe 91 extends into the interior of the collection box 95. A condenser pipe 92 is fixedly connected to the connecting pipe 91. An inlet pipe 93 is fixedly connected to the upper end of the condenser pipe 92. An outlet pipe 94 is fixedly connected to the lower end of the condenser pipe 92. Cooling water is added to the condenser pipe 92 through the inlet pipe 93. After the cooling water is used, it is discharged through the outlet pipe 94. The steam is condensed and collected by the collection box 95 to recover high-purity furfural and improve efficiency.

[0032] In some examples, raw materials are added to cylinder 1 via feed assembly 3, and steam is added to the interior of outer shell 2 via steam pipe 12. Heat transfer increases the internal temperature of cylinder 1, and the liquefied steam is discharged through drain pipe 13. Utilizing the boiling point difference between furfural (boiling point 161.7℃), water (boiling point 100℃), and other impurities, the steam is heated and vaporized, separating it from the impurities. Opening switch valve 11 allows steam to enter fixed tank 5, where it is filtered through permeation membrane 7 and then enters connecting pipe 91. A hydrophobic organic membrane (such as polydimethylsiloxane PDMS membrane) is used, utilizing the membrane's selective permeation of different gases to retain large molecular impurities, allowing furfural vapor to pass preferentially. Condensation assembly 9 operates, and steam is released through inlet pipe 93. Cooling water is added to the condenser 92. After use, the cooling water is discharged through the outlet pipe 94. The steam is condensed and collected by the collection box 95 to recover high-purity furfural and improve recovery efficiency. After the service life of the permeate membrane 7 ends, the winding assembly 6 operates. The servo motor 61 drives the drive roller 67 to rotate through the drive shaft 62 to feed the permeate membrane 7. At the same time, the drive shaft 62 drives the driven shaft 66 to rotate through the synchronization mechanism 64. The driven shaft 66 drives the driven roller 68 to wind up the permeate membrane 7, facilitating replacement of the permeate membrane 7. Distillation and permeate membrane 7 work together for separation. Distillation can initially separate most of the volatile substances in the furfural residue, such as furfural and water, through the difference in boiling points, obtaining crude furfural or furfural-water azeotrope. This can increase the concentration of the feed for subsequent membrane separation, reduce the load on the membrane separation, facilitate the selective separation of the target substances by the membrane, improve separation efficiency and effect, and ensure the purity of the obtained furfural.

[0033] like Figures 1-3As shown, this invention illustrates a high-efficiency gas-slag separator suitable for furfural processing in another embodiment. The feeding assembly 3 includes a feeding pipe 31, which is fixedly connected to the left end of the cylinder 1. A drive motor 32 is fixedly connected to the left end of the feeding pipe 31. The output end of the drive motor 32 extends into the inside of the feeding pipe 31 and is fixedly mounted with a rotating shaft 33. A propeller blade 34 is fixedly connected to the rotating shaft 33, and a funnel 35 is fixedly connected to the feeding pipe 31. When the drive motor 32 is started, it drives the rotating shaft 33 to rotate, which in turn drives the propeller blade 34 to work, feeding material into the cylinder 1. This facilitates control of the feeding amount and allows for easy adjustment by the operator.

[0034] In some examples, the raw material is added into the funnel 35, the feeding assembly 3 works, the drive motor 32 is started to drive the rotating shaft 33 to rotate, the rotating shaft 33 drives the propeller blade 34 to work, and feeds the material into the cylinder 1, which makes it easy to control the amount of material fed and to facilitate the operation of the staff.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high efficiency gas-slag separator suitable for furfural processing, characterized in that, include: A cylinder (1) is provided with a feeding assembly (3) installed at the left end of the cylinder (1), and a shell (2) is fixedly connected to the cylinder (1). A discharge pipe (14) is fixedly connected to the bottom end of the cylinder (1), and the lower end of the discharge pipe (14) extends to the bottom of the shell (2). The support frame (4) is fixedly connected to the top of the cylinder (1), and the fixed box (5) is fixedly connected to the top of the support frame (4). The winding assembly (6) is installed at the top of the support frame (4), and the condensation assembly (9) is installed at the right end of the fixed box (5).

2. A high efficiency gas-slag separator suitable for furfural processing as claimed in claim 1, wherein, The winding assembly (6) includes a servo motor (61). The servo motor (61) is fixedly connected to the top of the support frame (4). The output end of the servo motor (61) is fixedly mounted with a drive shaft (62). A fixing plate (63) is fixedly connected to the top of the support frame (4) and to the left of the servo motor (61). The right end of the fixing plate (63) is rotatably connected to the left end of the drive shaft (62). A drive roller (67) is fixedly connected to the drive shaft (62).

3. A high efficiency gas-slag separator suitable for furfural processing as claimed in claim 2, wherein, A second fixed plate (65) is fixedly connected to the top of the support frame (4) and to the rear side of the first fixed plate (63). A driven shaft (66) is rotatably connected to the right end of the second fixed plate (65). A driven roller (68) is fixedly connected to the driven shaft (66). A synchronization mechanism (64) is fixedly installed on the drive shaft (62) and to the left end of the drive roller (67). The rear end of the synchronization mechanism (64) is movably connected to the driven shaft (66).

4. A high efficiency gas-slag separator suitable for furfural processing as claimed in claim 3, wherein, The active roller (67) is wound with a permeation membrane (7), the rear end of the permeation membrane (7) passes through the fixed box (5) and is wound on the driven roller (68), and a sealing strip (8) is fixedly connected to the inner wall of the fixed box (5) and above the permeation membrane (7), and the lower end of the sealing strip (8) is in contact with the top end of the permeation membrane (7).

5. A high efficiency gas-slag separator suitable for furfural processing as claimed in claim 1, wherein, The feeding assembly (3) includes a feeding pipe (31), the left end of the cylinder (1) is fixedly connected to the feeding pipe (31), the left end of the feeding pipe (31) is fixedly connected to a drive motor (32), the output end of the drive motor (32) extends into the inside of the feeding pipe (31) and a rotating shaft (33) is fixedly installed thereon, a propeller blade (34) is fixedly connected to the rotating shaft (33), and a funnel (35) is fixedly connected to the feeding pipe (31).

6. A high efficiency gas-slag separator suitable for furfural processing as claimed in claim 1, wherein, The condensation assembly (9) includes a connecting pipe (91). The right end of the fixed box (5) is fixedly connected to the connecting pipe (91). A collection box (95) is provided on the right side of the cylinder (1). The end of the connecting pipe (91) extends into the inside of the collection box (95). A condenser pipe (92) is fixedly connected to the connecting pipe (91). An inlet pipe (93) is fixedly connected to the upper end of the condenser pipe (92). An outlet pipe (94) is fixedly connected to the lower end of the condenser pipe (92).

7. A high efficiency gas-slag separator suitable for furfural processing as claimed in claim 1 wherein, A connecting pipe (10) is fixedly connected to the top of the cylinder (1), and the upper end of the connecting pipe (10) extends into the interior of the fixed box (5). A switch valve (11) is fixedly installed on the connecting pipe (10).

8. A high-efficiency gas-slag separator suitable for furfural processing according to claim 1, characterized in that, The shell (2) right end fixedly connected with steam pipe (12), the shell (2) lower end and located on the left side of the discharge pipe (14) fixedly connected with the drain pipe (13).

Images