Raw material screening device for furfural processing

Abstract

The utility model provides a raw material screening device for furfural processing, which relates to the technical field of furfural processing equipment and comprises a crushing cylinder, a screening device and a screening device. The crushing cylinder is of a cylindrical cavity structure, and a crushing frame is fixedly mounted in the crushing cylinder; a rotating disc is arranged in the crushing frame; a screening net frame is arranged below the crushing frame, a crushing roller and a crushing bottom plate are matched up and down to crush raw materials for furfural processing, and through the structural characteristics of the crushing bottom plate and the screening net plate, preliminary screening treatment can be performed in the raw material crushing process, so that the operation steps of furfural raw material processing are simplified, the processing operation is more convenient, and the production efficiency is improved. The production efficiency of the device is effectively improved, and the problem that when an existing raw material screening device for furfural processing is used, due to the fact that the raw material crushing action and the screening process need to be carried out step by step in a matched mode, operation steps are tedious, and the production efficiency of the device is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of furfural processing equipment, in particular to a raw material screening device for furfural processing. Background Art

[0002] Furfural is an important industrial raw material widely used in the manufacture of resins, plastics, chemical fibers, and other chemical products. Furfural's raw materials primarily include agricultural byproducts such as corn cobs, wheat straw, cottonseed hulls, and sorghum hulls. These raw materials are rich in cellulose and hemicellulose, making them the primary source of furfural production. To maximize furfural yield, raw material pretreatment is required, including crushing, drying, and screening to ensure that the particle size and moisture content meet reaction requirements.

[0003] For example, the utility model with application number CN202320647133.2 relates to the technical field of furfural processing equipment, specifically a corncob screening device for furfural processing, comprising a screening box mounted on a mounting frame, the screening box being provided with a feed inlet and a discharge inlet, and a first filter plate and a second filter plate arranged sequentially on its bottom surface along the direction of material flow, the filter pore size of the first filter plate being smaller than the filter pore size of the second filter plate; a first collection box and a second collection box are both arranged below the screening box and correspond to the first filter plate and the second filter plate, respectively; a crushing roller is rotatably disposed in the screening box below the feed inlet, driven by a transmission assembly; a drive shaft eccentrically disposed on a polarizing roller is rotatably connected to one side of the mounting frame, and the outer circumference of the polarizing roller abuts the outer circumference of a connecting roller rotatably disposed below the screening box; and a buffer assembly is disposed on the mounting frame and connected to fixed rods on both sides of the screening box. This utility model has the advantages of multi-stage screening and being less prone to clogging.

[0004] The existing raw material screening device for furfural processing is complicated to operate because the raw material crushing and screening processes need to be carried out step by step, resulting in poor production efficiency of the device. In addition, the screening filter plate in the device is installed in a fixed position. After long-term use, a large amount of large-particle waste is easily deposited on the screening filter plate, affecting its screening efficiency, and manual cleaning is more troublesome. Utility Model Content

[0005] The disclosed embodiment relates to a raw material screening device for furfural processing, in which a crushing roller and a crushing bottom plate cooperate with each other to crush the raw materials for furfural processing. Due to the structural characteristics of the crushing bottom plate and the screening mesh plate, preliminary screening can be performed during the raw material crushing process, thereby simplifying the operating steps of furfural raw material processing, making processing operations more convenient, and effectively improving the production efficiency of the device.

[0006] In a first aspect of the present disclosure, a raw material screening device for furfural processing is provided, which specifically includes: a crushing cylinder, wherein a mounting base is provided at the bottom of the crushing cylinder; the crushing cylinder is a cylindrical cavity structure, and a crushing frame is fixedly installed in the crushing cylinder; a rotating disk is provided in the crushing frame; and a screening mesh frame is provided below the crushing frame.

[0007] In at least some embodiments, a top cover is provided on the top of the crushing cylinder, a discharge port is provided on the bottom side of the crushing cylinder, two limit stands are provided on the inner wall of the crushing cylinder, and the two limit stands are symmetrically distributed, and the limit stands are matched with the screening frame.

[0008] In at least some embodiments, a servo motor is fixedly mounted on one side of the outer peripheral surface of the mounting base, the mounting base is a cylindrical cavity structure, and a transmission shaft is rotatably mounted in the mounting base through a bearing, and the transmission shaft is connected to the rotating shaft of the servo motor, an active bevel gear is provided in the middle position of the transmission shaft, and two cams are provided on the transmission shaft, and the two cams are distributed symmetrically.

[0009] In at least some embodiments, a crushing bottom plate is provided at the bottom of the crushing frame, and the crushing bottom plate is distributed in a ring manner, and a sub-screen plate is provided at the bottom of the crushing frame, and the sub-screen plate is distributed in a ring manner, and the sub-screen plate matches the crushing bottom plate.

[0010] In at least some embodiments, crushing rollers are provided at the bottom of the rotating disk, and the crushing rollers are distributed in a ring array. A rotating rod is provided at the center of the bottom of the rotating disk, and a driven bevel gear is provided at the bottom end of the rotating rod.

[0011] In at least some embodiments, the crushing roller of the rotating disk contacts the crushing bottom plate of the crushing frame, and the rotating rod is rotatably connected to the crushing frame and the bottom plate of the crushing cylinder through a bearing, and the driven bevel gear is meshed with the driving bevel gear.

[0012] In at least some embodiments, two limiting slide grooves are provided on the outer peripheral surface of the sub-screen frame, and the two limiting slide grooves are distributed in a symmetrical manner, two limiting slide rods are provided at the bottom of the sub-screen frame, and the two limiting slide rods are distributed in a vertically parallel manner, a transmission sleeve is provided at the bottom end of the limiting slide rod, and a compression spring is mounted on the limiting slide rod.

[0013] In at least some embodiments, the sub-screen frame is slidably connected to the limiting stand of the crushing cylinder through a limiting slide groove, and the limiting slide rod slides through the bottom plate of the crushing cylinder, and the compression spring is supported between the bottom plate of the crushing cylinder and the transmission sleeve, and the transmission sleeve is connected to the cam transmission.

[0014] The utility model provides a raw material screening device for furfural processing, which has the following beneficial effects:

[0015] In the utility model, the servo motor provides power to drive the transmission shaft to rotate, and the active bevel gear and the driven bevel gear are engaged to drive the rotating rod and the rotating disk to rotate. The crushing roller and the crushing bottom plate cooperate with each other to crush the furfural processing raw materials. Through the structural characteristics of the crushing bottom plate and the screening plate, preliminary screening can be carried out in the process of raw material crushing, thereby simplifying the operating steps of furfural raw material processing, making the processing operation more convenient, and effectively improving the production efficiency of the device.

[0016] In addition, the device is provided with a sub-screening frame, which can be driven to intermittently vibrate up and down along the limiting frame through the cooperation of the transmission sleeve and the cam transmission, and by utilizing the elastic action of the compression spring, thereby preventing large particles of waste from being deposited on the top surface of the sub-screening frame, thereby effectively improving its screening efficiency and making the structure more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached figure:

[0020] Figure 1 Shows the overall axial viewing angle structure diagram of the present application;

[0021] Figure 2 A schematic diagram of the cross-sectional view of the crushing cylinder and the mounting base of the present application is shown;

[0022] Figure 3 It shows a schematic structural diagram of the crushing frame and the rotating disk in the disassembled state of the present application;

[0023] Figure 4 The schematic diagram of the servo motor, rotating disk and screening frame structure of the present application is shown;

[0024] Figure 5 A schematic diagram of the screen frame structure of the present application is shown.

[0025] List of reference numerals:

[0026] 1. Crushing cylinder; 101. Top cover; 102. Discharge port; 103. Position limiting stand;

[0027] 2. Mounting base; 201. Servo motor; 202. Transmission shaft; 203. Active bevel gear; 204. Cam;

[0028] 3. Crushing frame; 301. Crushing bottom plate; 302. Screening plate;

[0029] 4. Rotating plate; 401. Crushing roller; 402. Rotating rod; 403. Driven bevel gear;

[0030] 5. Screening frame; 501. Limiting slide; 502. Limiting slide bar; 503. Transmission sleeve; 504. Compression spring. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figures 1 to 5 :

[0033] The utility model proposes a raw material screening device for furfural processing, comprising: a crushing cylinder 1, a mounting base 2 is provided at the bottom of the crushing cylinder 1; the crushing cylinder 1 is a cylindrical cavity structure, and a crushing frame 3 is fixedly installed in the crushing cylinder 1; a rotating disk 4 is provided in the crushing frame 3; and a screening frame 5 is provided below the crushing frame 3;

[0034] A top cover 101 is provided at the top of the crushing cylinder 1, a discharge port 102 is provided on the bottom side of the crushing cylinder 1, and two limit stands 103 are provided on the inner wall of the crushing cylinder 1. The two limit stands 103 are distributed in a symmetrical manner, and the limit stands 103 match the sieve frame 5.

[0035] In the embodiment of the present disclosure, Figure 3 As shown, a servo motor 201 is fixedly mounted on one side of the outer peripheral surface of the mounting base 2. The mounting base 2 is a cylindrical cavity structure, and a transmission shaft 202 is rotatably mounted in the mounting base 2 through a bearing. The transmission shaft 202 is connected to the rotating shaft of the servo motor 201. An active bevel gear 203 is provided in the middle of the transmission shaft 202. Two cams 204 are provided on the transmission shaft 202, and the two cams 204 are symmetrically distributed.

[0036] A crushing bottom plate 301 is provided at the bottom of the crushing frame 3, and the crushing bottom plate 301 is distributed in a ring manner. A sub-screen plate 302 is provided at the bottom of the crushing frame 3, and the sub-screen plate 302 is distributed in a ring manner, and the sub-screen plate 302 matches the crushing bottom plate 301;

[0037] Crushing rollers 401 are provided at the bottom of the rotating disk 4, and the crushing rollers 401 are distributed in a circular array. A rotating rod 402 is provided at the center of the bottom of the rotating disk 4, and a driven bevel gear 403 is provided at the bottom end of the rotating rod 402.

[0038] The crushing roller 401 of the rotating disk 4 is in contact with the crushing bottom plate 301 of the crushing frame 3, and the rotating rod 402 is rotatably connected to the crushing frame 3 and the bottom plate of the crushing cylinder 1 through a bearing, and the driven bevel gear 403 is meshed with the active bevel gear 203. In the utility model, the servo motor 201 provides power to drive the transmission shaft 202 to rotate. The active bevel gear 203 and the driven bevel gear 403 are meshed and driven to drive the rotating rod 402 and the rotating disk 4 to rotate. The crushing roller 401 and the crushing bottom plate 301 cooperate with each other to crush the raw materials for furfural processing. Through the structural characteristics of the crushing bottom plate 301 and the screening plate 302, preliminary screening can be performed during the raw material crushing process.

[0039] Example 2, based on Example 1, Figure 5 As shown, two limiting slide grooves 501 are provided on the outer circumference of the sub-screen frame 5, and the two limiting slide grooves 501 are symmetrically distributed. Two limiting slide bars 502 are provided at the bottom of the sub-screen frame 5, and the two limiting slide bars 502 are vertically parallel distributed. A transmission sleeve 503 is provided at the bottom end of the limiting slide bar 502, and a compression spring 504 is sleeved on the limiting slide bar 502;

[0040] The sub-screen frame 5 is slidably connected to the limiting stand 103 of the crushing cylinder 1 through the limiting slide groove 501, and the limiting slide rod 502 slides through the bottom plate of the crushing cylinder 1, and the compression spring 504 is supported between the bottom plate of the crushing cylinder 1 and the transmission sleeve 503, and the transmission sleeve 503 is transmission-connected to the cam 204. The device is provided with a sub-screen frame 5, which is driven by the transmission sleeve 503 and the cam 204 through the transmission cooperation and the elastic action of the compression spring 504 to drive the sub-screen frame 5 to intermittently vibrate up and down along the limiting stand 103, thereby preventing large particles of waste from being deposited on the top surface of the sub-screen frame 5, thereby effectively improving its screening efficiency.

[0041] The working principle of this embodiment: when in use, the servo motor 201 provides power to drive the transmission shaft 202 to rotate, and the active bevel gear 203 and the driven bevel gear 403 are engaged for transmission to drive the rotating rod 402 and the rotating disk 4 to rotate, and the crushing roller 401 and the crushing bottom plate 301 cooperate up and down to crush the raw materials for furfural processing. Through the structural characteristics of the crushing bottom plate 301 and the sub-screen plate 302, preliminary screening can be carried out during the raw material crushing process; through the transmission cooperation of the transmission sleeve 503 and the cam 204, and by utilizing the elastic action of the compression spring 504, the sub-screen frame 5 can be driven to intermittently vibrate up and down along the limit stand 103, which can prevent large particles of waste from being deposited on the top surface of the sub-screen frame 5, thereby effectively improving its screening efficiency.

[0042] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A raw material screening device for furfural processing, characterized in that: include: A crushing cylinder, wherein a mounting base is provided at the bottom of the crushing cylinder; the crushing cylinder is a cylindrical cavity structure, and a crushing frame is fixedly installed in the crushing cylinder; a rotating disk is provided in the crushing frame; a sieve frame is provided below the crushing frame; The bottom of the crushing frame is provided with a crushing bottom plate, and the crushing bottom plate is distributed in a ring manner. The bottom of the crushing frame is provided with a sub-screen plate, and the sub-screen plate is distributed in a ring manner, and the sub-screen plate matches the crushing bottom plate.

2. A raw material screening device for furfural processing according to claim 1, characterized in that: The top of the crushing cylinder is provided with a top cover, the bottom side of the crushing cylinder is provided with a discharge port, the inner wall of the crushing cylinder is provided with two limit stands, and the two limit stands are symmetrically distributed, and the limit stands are matched with the sub-screen frame.

3. A raw material screening device for furfural processing according to claim 1, characterized in that: A servo motor is fixedly mounted on one side of the outer peripheral surface of the mounting base. The mounting base is a cylindrical cavity structure, and a transmission shaft is rotatably mounted in the mounting base through a bearing, and the transmission shaft is connected to the rotating shaft of the servo motor. An active bevel gear is provided in the middle position of the transmission shaft, and two cams are provided on the transmission shaft, and the two cams are distributed symmetrically.

4. A raw material screening device for furfural processing according to claim 1, characterized in that: Crushing rollers are provided at the bottom of the rotating disk, and the crushing rollers are distributed in a ring array. A rotating rod is provided at the center of the bottom of the rotating disk, and a driven bevel gear is provided at the bottom end of the rotating rod.

5. A raw material screening device for furfural processing according to claim 4, characterized in that: The crushing roller of the rotating disk contacts the crushing bottom plate of the crushing frame, and the rotating rod is rotatably connected to the crushing frame and the bottom plate of the crushing cylinder through a bearing, and the driven bevel gear is meshed with the driving bevel gear.

6. A raw material screening device for furfural processing according to claim 1, characterized in that: The outer circumference of the sub-screen frame is provided with two limiting slide grooves, and the two limiting slide grooves are distributed in a symmetrical manner. The bottom of the sub-screen frame is provided with two limiting slide rods, and the two limiting slide rods are distributed in a vertically parallel manner. The bottom end of the limiting slide rod is provided with a transmission sleeve frame, and a compression spring is installed on the limiting slide rod.

7. A raw material screening device for furfural processing according to claim 6, characterized in that: The sub-screen frame is slidably connected to the limiting stand of the crushing cylinder through a limiting slide groove, and the limiting slide rod slides through the bottom plate of the crushing cylinder, and the compression spring is supported between the bottom plate of the crushing cylinder and the transmission sleeve, and the transmission sleeve is connected to the cam transmission.

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