Acid mixing device for furfural processing

Abstract

The utility model relates to an acid mixing device for furfural processing. Comprising a stirring barrel, a feeding port is formed in the top of one end of the stirring barrel, a discharging port is formed in the bottom of the other end of the stirring barrel, a liquid spraying unit communicated with the interior of the stirring barrel is arranged on the side portion of the feeding port, and an auger conveying part used for conveying and stirring materials is arranged in the stirring barrel; the tail end of the auger conveying part is connected with a material delay conveying unit arranged in the mixing drum through a power transmission mechanism; by arranging the material delay conveying unit, the time of the material from the feed port to the discharge port can be delayed, so that the characteristic of prolonging the retention time of the material in the mixing drum is achieved, the purpose of equipment miniaturization is achieved on the basis of reducing the distance between the feed port and the discharge port, and meanwhile, the purpose of uniform acid mixing can also be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of furaldehyde acid mixing processing, and specifically relates to a furaldehyde processing acid mixing device. BACKGROUND

[0002] Furfural is an industrial chemical product, which can be extracted from various agricultural and sideline products, including corn cob, oat and wheat bran and sawdust; furfural is mainly used as a raw material for organic synthesis, and is also used for synthesizing resin, varnish, pesticide, medicine, rubber and paint.

[0003] In the processing of furfural, the corn cob raw material is first conveyed to the crusher by the conveying belt, and the crushed corn cob raw material is mixed with dilute sulfuric acid with a concentration of 6-8% in the acid mixing device to achieve the acid mixing effect; the existing acid mixing equipment for furfural processing mostly adopts a general stirrer, which can only complete the acid mixing of the corn cob raw material in the cylinder, and then new corn cob raw material can be injected into the cylinder for the next acid mixing, which affects the continuity of production and limits the production efficiency; in order to solve the above technical problems, some enterprises use an auger structure to convey the material during acid mixing; but the above structure has the defects of large equipment area and insufficient acid mixing. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a furaldehyde processing acid mixing device to solve the technical problems existing in the prior art.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] A furaldehyde processing acid mixing device, comprising a stirring cylinder, a feed inlet is arranged at the top of one end of the stirring cylinder, a discharge outlet is arranged at the bottom of the other end of the stirring cylinder, a liquid spraying unit is arranged at the side of the feed inlet and is connected with the inside of the stirring cylinder, an auger conveying part for conveying and stirring the material is arranged in the stirring cylinder, and the tail end of the auger conveying part is connected with a material delay conveying unit arranged in the stirring cylinder through a power transmission mechanism.

[0007] The utility model discloses a beneficial effect is: through setting up the feed inlet and liquid spraying unit can realize the corn core raw material and sulfuric acid enter, through setting up auger conveying part can realize the stirring and conveying of preceding two kinds of material, further, through setting up material delay conveying unit can delay the time of material from feed inlet to discharge port, thereby reach the characteristics of improving the residence time of material in the stirring drum, to realize the purpose of equipment miniaturization on the basis of reducing the distance between feed inlet and discharge port, can also realize the purpose of uniform mixing acid and continuous production, further, the utility model discloses and auger conveying part are power, and the direction rotation of material delay conveying unit is brought about through power transmission mechanism, can reach the purpose of saving power on the basis of improving the residence time of material.

[0008] Preferably, the auger conveying part includes a reduction motor arranged at one side end of the stirring drum, the reduction motor is connected with an auger shaft arranged in the stirring drum through a motor spindle, and the auger shaft is provided with an auger for stirring and conveying materials on an outer circumference thereof.

[0009] Preferably, the other end of the auger shaft is connected with a power transmission mechanism, the power transmission mechanism includes a sun gear sleeved on the other end of the auger shaft, the sun gear is engaged with a ring gear through a planetary gear, and the ring gear is connected with an end of the material delay conveying unit.

[0010] Preferably, the material delay conveying unit includes an inner rotating cylinder movably arranged on an inner wall of the stirring drum, a plurality of connecting rods are arranged on the inner rotating cylinder at positions corresponding to the discharge port, ends of the connecting rods are connected with a connecting plate, and the outer side of the connecting plate is fixedly provided with the ring gear.

[0011] Preferably, the outer circumferences of the inner rotating cylinder and the ring gear are connected with the inner wall of the stirring drum through copper sleeves respectively.

[0012] Preferably, the liquid spraying unit includes a liquid inlet pipe, the liquid inlet pipe is connected with a liquid distribution pipe through the top of the stirring drum, and the bottom of the liquid distribution pipe is uniformly provided with spray heads.

[0013] Preferably, the outer contour of the liquid distribution pipe is matched with the inner contour of the top of the stirring drum.

[0014] Preferably, the length of the inner rotating cylinder is not greater than the distance from the liquid distribution pipe to the discharge port.

[0015] The utility model has the following advantages:

[0016] 1. The utility model is suitable for corn core mixes acid, it utilizes the auger conveying part's characteristic that can stir material while conveying material, realizes the full mixing of corn core raw materials and sulfuric acid, can realize the power transmission mechanism and material delay conveying unit are set up under the action of auger conveying part as the power base, and the material delay conveying unit can improve the material's residence time, so that the purpose that equipment miniaturization and material are fully mixed is realized.

[0017] 2. The utility model is powered by the auger conveying part, through the sun gear, the planet gear and the outer gear ring cooperation, realize the characteristic that compared with the auger conveying part, it is decelerated and opposite rotation, through the opposite rotation of deceleration can reach the characteristic that saves power and improves the material residence time in the stirring drum.

[0018] 3. The utility model discloses the outer circumference of inner rotary cylinder and outer gear ring is connected with the stirring drum inner wall through copper bush respectively, can realize for the installation position of inner rotary cylinder and outer gear ring is improved, and the characteristic that the inner rotary cylinder and outer gear ring can rotate is satisfied, simultaneously through the setting connecting rod can realize the connection of inner rotary cylinder and connecting plate, reach the purpose of convenient unloading simultaneously. ACCURACY

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] Figure 2 It is the power transmission mechanism schematic diagram of the utility model;

[0022] Figure 3 It is the material delay conveying unit structure schematic diagram of the utility model;

[0023] Figure 4 It is the liquid spraying unit structure schematic diagram of the utility model.

[0024] In the drawing: 1, stirring drum;2, feed inlet;3, auger shaft;4, auger;5, sun gear;6, planet gear;7, outer gear ring;8, speed reducer motor;9, inner rotary cylinder;10, connecting rod;11, connecting plate;12, discharge port;14, copper bush;15, liquid inlet pipe;16, liquid distribution pipe;17, spray head. DETAILED DESCRIPTION

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0026] The drawings will be described below in conjunction with the Figures 1-4 The present application will be further described in detail,

[0027] The utility model discloses a kind of acid mixing devices for furfural processing, including stirring drum 1, the top of one end of stirring drum 1 is equipped with feed inlet 2, the bottom of the other end of stirring drum 1 is equipped with discharge port 12, the side of feed inlet 2 is equipped with liquid spraying unit being connected with the inside of stirring drum 1, the auger conveying part for conveying and stirring material is equipped in stirring drum 1, the tail end of the auger conveying part is connected with material delay conveying unit arranged in stirring drum 1 by power transmission mechanism.The utility model is reformed based on auger conveying device, using the characteristics that auger conveying part can transport and stir raw materials, and the power of auger conveying part is the power of material delay conveying unit, so as to achieve the purpose of improving material residence time and realizing material fully stirring, and the above structure can also realize the miniaturization of entire device to achieve the advantage of reducing equipment floor area.

[0028] Further, the auger conveying part includes reduction motor 8 arranged at one side end of stirring drum 1, reduction motor 8 is connected with auger shaft 3 arranged in stirring drum 1 by motor main shaft, and auger 4 for stirring material and conveying material is arranged on the outer circumference of auger shaft 3.The reduction motor 8 in the utility model drives auger shaft 3 to rotate, and auger shaft 3 drives auger 4 to fully mix and convey material.

[0029] Further, the end of the other side of auger shaft 3 is connected with power transmission mechanism, and the power transmission mechanism includes sun gear 5 sleeved on the end of the other side of auger shaft 3, sun gear 5 is engaged with outer ring gear 7 through planetary gear 6, and the end of material delay conveying unit is connected with outer ring gear 7.Further, auger shaft 3 drives outer ring gear 7 to rotate through sun gear 5 and planetary gear 6 while realizing the rotation of auger 4, so as to realize the rotation of material delay conveying unit under the premise of deceleration and opposite motion relative to auger shaft 3, to improve the residence time of material in stirring drum 1.

[0030] Further, the material delaying conveying unit comprises an inner rotating cylinder 9 movably arranged on the inner wall of the stirring cylinder 1, a plurality of connecting rods 10 arranged on the inner rotating cylinder 9 corresponding to the discharge port 12, and an end of each connecting rod 10 connected with a connecting plate 11, and an outer gear ring 7 fixedly arranged on the outer side of the connecting plate 11. The material in the inner rotating cylinder 9 can be delayed and fully mixed, the connecting rods 10 can realize the following functions: 1, connecting the inner rotating cylinder 9 and the connecting plate 11 to provide power for the rotation of the inner rotating cylinder 9; 2, the material in the inner rotating cylinder 9 can be discharged through the discharge port 12; 3, the connecting strength between the inner rotating cylinder 9 and the connecting plate 11 can be improved through the connecting rods 10.

[0031] Further, the outer circumferences of the inner rotating cylinder 9 and the outer gear ring 7 are connected with the inner wall of the stirring cylinder 1 through copper sleeves 14. The copper sleeves 14 can realize the installation of the inner rotating cylinder 9 and the outer gear ring 7 in the stirring cylinder 1, and also can realize the rotation of the inner rotating cylinder 9 and the outer gear ring 7.

[0032] Further, the liquid spraying unit comprises an inlet pipe 15 connected with a liquid distribution pipe 16 through the top of the stirring cylinder 1, and a plurality of spray heads 17 arranged on the bottom of the liquid distribution pipe 16. The liquid spraying unit is suitable for mixing solid-liquid materials, especially for mixing corn cob raw materials and sulfuric acid. In actual use, the sulfuric acid enters the spray heads 17 through the inlet pipe 15 and the liquid distribution pipe 16, realizes uniform spraying of the sulfuric acid, and lays a foundation for the subsequent full mixing of the solid-liquid materials.

[0033] Further, the outer contour of the liquid distribution pipe 16 is matched with the inner contour of the top of the stirring cylinder 1. Preferably, the outer contour of the liquid distribution pipe 16 is an arc matched with the inner contour of the top of the stirring cylinder 1.

[0034] Further, the length of the inner rotating cylinder 9 is not greater than the distance from the liquid distribution pipe 16 to the discharge port 12. The longer the length of the inner rotating cylinder 9, the longer the residence time of the material in the stirring cylinder 1. Therefore, under the premise of not affecting the feeding, the initial end of the length of the inner rotating cylinder 9 can be arranged at the rear of the inlet pipe 15, and the terminal end can be arranged at the front of the discharge port 12, so as to realize the characteristic of prolonging the residence time of the material in the inner rotating cylinder 9.

[0035] The working principle of the utility model is as follows: the broken corncob raw material enters the stirring drum 1 through the feed inlet 2, the speed reducer motor 8 is started, the speed reducer motor 8 drives the auger 4 and the sun gear 5 to rotate through the auger shaft 3, the sun gear 5 drives the inner rotary cylinder 9 to rotate through the planetary gear 6 and the outer gear ring 7, the corncob raw material moves to the direction of the discharge port 12 under the driving of the auger 4 after entering the stirring drum 1, at the same time, the dilute sulfuric acid with the concentration of 6-8% enters each spray head 17 through the liquid inlet pipe 15 and the liquid distribution pipe 16 and uniformly sprays the corncob raw material; the rotation direction of the inner rotary cylinder 9 is opposite to that of the auger 4 in the utility model, and the rotating speed of the inner rotary cylinder 9 is less than the rotating speed of the auger 4; the above structure can slow down the conveying speed of the material, prolong the stirring time of the material in the stirring drum 1, and further improve the stirring uniformity through the rotation of the inner rotary cylinder 9, so that the raw material is fully mixed with acid, the acid mixing efficiency is high, and the acid mixing effect is good; the material after acid mixing is discharged through the discharge port 12; in the process of acid mixing, the material after acid mixing is continuously discharged, and new corncob raw material and sulfuric acid continuously enter the stirring drum 1, so that the continuous production characteristics are realized; the utility model has the characteristics of simple structure, small occupied area, power saving, continuous production and good acid mixing effect.

[0036] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments and the description in the specification.

[0037] The above embodiments and the description in the specification are only illustrative of the principles of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model.

[0038] The above embodiments and the description in the specification are only illustrative of the principles of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model.

[0039] The above embodiments and the description in the specification are only illustrative of the principles of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model.

[0040] The above embodiments and the description in the specification are only illustrative of the principles of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model.

Claims

1. A furaldehyde processing acid mixing device, comprising a stirring cylinder (1), one end of the top of the stirring cylinder (1) is provided with a feeding port (2), the other end of the bottom of the stirring cylinder (1) is provided with a discharging port (12), characterized in that: The side of the feeding port (2) is provided with a liquid spraying unit communicating with the inside of the stirring cylinder (1), the stirring cylinder (1) is provided with an auger conveying part for conveying and stirring materials, The end of the auger conveying part is connected with a material delay conveying unit arranged in the stirring cylinder (1) through a power transmission mechanism.

2. A furaldehyde processing acid mixing device according to claim 1, characterized in that: The auger conveying part comprises a speed reducer motor (8) arranged at one side end of the stirring cylinder (1), the speed reducer motor (8) is connected with an auger shaft (3) arranged in the stirring cylinder (1) through a motor main shaft, and the auger shaft (3) is provided with an auger (4) for stirring and conveying materials on the outer circumference thereof.

3. A furaldehyde processing acid mixing device according to claim 2, characterized in that: The other end of the auger shaft (3) is connected with the power transmission mechanism, the power transmission mechanism comprises a sun gear (5) sleeved on the other end of the auger shaft (3), the sun gear (5) is engaged with an outer gear ring (7) through a planetary gear (6), and the outer gear ring (7) is connected with the end of the material delay conveying unit.

4. A furaldehyde processing acid mixing device according to claim 3, characterized in that: The material delay conveying unit comprises an inner rotating cylinder body (9) movably arranged on the inner wall of the stirring cylinder (1), a plurality of connecting rods (10) are arranged on the inner rotating cylinder body (9) at positions corresponding to the discharge port (12), the ends of the connecting rods (10) are connected with a connecting plate (11), and the outer side of the connecting plate (11) is fixedly installed with the outer gear ring (7).

5. A furaldehyde processing acid mixing device according to claim 4, characterized in that: The outer circumferences of the inner rotating cylinder body (9) and the outer gear ring (7) are connected with the inner wall of the stirring cylinder (1) through copper sleeves (14) respectively.

6. A furaldehyde processing acid mixing device according to claim 4 or 5, characterized in that: The liquid spraying unit comprises a liquid inlet pipe (15), the liquid inlet pipe (15) penetrates through the top of the stirring cylinder (1) and is connected with a liquid distribution pipe (16), and the bottom of the liquid distribution pipe (16) is uniformly provided with spray heads (17).

7. A furaldehyde processing acid mixing device according to claim 6, characterized in that: The The outer contour of the liquid distribution pipe (16) is matched with the inner contour of the top of the stirring cylinder (1).

8. A furaldehyde processing acid mixing device according to claim 6, characterized in that: The length of the inner rotating cylinder body (9) is not greater than the distance from the liquid distribution pipe (16) to the discharge port (12).

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