Scraper film evaporator

Abstract

The utility model discloses a scraper film evaporator which comprises an upper shell, a middle shell, a lower shell and a conical sealing head which are connected in sequence, a feeding port is formed in one side of the upper shell, a distributing device is arranged in the upper shell, a plurality of fan blades are arranged on the lower portion of the distributing device in the circumferential direction, a motor is fixedly installed on the top of the upper shell, and a scraper is arranged on the lower portion of the motor. The output end of the motor is fixedly connected with a rotating shaft, the surface of the rotating shaft is fixedly connected with a driving gear, one side of the driving gear is meshed with a driven gear, the driven gear is rotationally installed on the inner top wall of the upper shell, the inner circumference of the distributing device is fixedly connected with a gear ring, and the driven gear is meshed with the gear ring. Feed liquid can be distributed to all positions of the inner wall of the evaporator, the concentration efficiency of high fructose corn syrup is improved through two-stage evaporation concentration, meanwhile, the spiral half pipe is wound outside the conical end socket to heat the concentrated high fructose corn syrup, and the high fructose corn syrup is prevented from being too high in viscosity and not easy to discharge.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of thin film evaporator, specifically a kind of scraper thin film evaporator. BACKGROUND

[0002] The scraper thin film evaporator is provided with a heating steam jacket outside the shell, and a rotatable scraper inside the shell, which is driven by a rotating shaft at the center of the cylinder.Raw material liquid is added from the upper part of the evaporator along the tangential direction, and then forms a downward rotating film along the inner wall of the shell under the action of gravity and the rotating scraper.The completed liquid is discharged from the bottom of the evaporator, and the secondary steam is discharged from the upper part after passing through a defoaming device.

[0003] Fruit glucose syrup is a kind of important sweetener made of starch sugar crystals by hydrolysis and isomerization of plant starch.The scraper thin film evaporator is commonly used in the concentration and evaporation process of fruit glucose syrup.The existing scraper thin film evaporator generally adds liquid material to the distributor through the feed inlet, and then the distributor disperses and guides the liquid material to the inner wall of the evaporator.The distributor cannot uniformly send the liquid material to all parts of the inner wall of the evaporator, resulting in low concentration effect of the liquid material.In addition, the viscosity of the concentrated fruit glucose syrup is large, and the discharging efficiency is low. UTILITY MODEL CONTENTS

[0004] In view of the above shortcomings of the prior art, the utility model provides a scraper thin film evaporator, which can greatly improve the concentration efficiency of fruit glucose syrup and prevent the viscosity of fruit glucose syrup from being too large, so that it can be quickly discharged.

[0005] The utility model provides a technical scheme: a scraper thin film evaporator, which comprises upper shell, middle shell, lower shell and conical head connected in sequence, one side of the upper shell is provided with feed inlet, the inside of the upper shell is provided with distributor, the lower part of the distributor is provided with a plurality of fan blades in circumferential direction, the top of the upper shell is fixedly installed with motor, the output end of the motor is fixedly connected with rotating shaft, the surface of the rotating shaft is fixedly connected with main gear, one side of the main gear is engaged with from gear, the from gear is rotatably installed on the inner top wall of the upper shell, the inner circumference of the distributor is fixedly connected with gear ring, the from gear is engaged with the gear ring, the outer side wall of the middle shell and the lower shell is provided with heating jacket, the lower end of the rotating shaft extends into the middle shell and the lower shell and is fixedly sleeved with scraper, the bottom of the conical head is provided with discharge port.

[0006] Further, the middle shell and the lower shell, and the lower shell and the conical head are fixedly installed through flanges, and sealing rings are embedded and installed between the adjacent two flanges.

[0007] Further, the inner top wall of the upper shell is provided with a limiting ring, and the upper end of the distributor is provided with an annular groove, and the limiting ring is slidably connected with the annular groove.

[0008] Further, the rotating shaft is located below the distributor and is installed with a support plate, and the rotating shaft is connected with the support plate through a shaft sleeve.

[0009] Further, the heating jacket is provided with a first steam inlet and a steam outlet on two sides respectively, and the heating jacket comprises a plurality of half-pipes which are vertically fixed to the surface of the shell.

[0010] Further, the upper shell is provided with an exhaust port on the side away from the feed inlet.

[0011] Further, the outer surface of the conical head is provided with spiral half-pipes, one end of the spiral half-pipes is provided with a second steam inlet, and the other end of the spiral half-pipes is provided with a condensate outlet.

[0012] Compared with the prior art, the utility model has the beneficial effects of:

[0013] (1) The scraper film evaporator for fructose syrup concentration, through the setting of the feed inlet, the distributor, the fan blade, the motor, the rotating shaft, the main gear, the gear and the gear ring, the liquid falls on the distributor after entering the feed inlet, the motor is started to drive the rotating shaft to rotate, the main gear is driven to rotate through the rotating shaft, the gear is driven to rotate through the main gear, the gear ring is driven to rotate through the gear, and the distributor is rotated through the gear ring, so that the distributor drives the fan blade to rotate, and the liquid is uniformly distributed to each part of the inner wall of the evaporator, so that the concentration effect of the liquid is improved;

[0014] (2) The heating jacket is arranged outside the middle shell and the lower shell, the concentration efficiency of the fructose syrup is improved through two-stage evaporation concentration, and the spiral half-pipes are arranged outside the conical head to heat the concentrated fructose syrup, so that the viscosity of the fructose syrup is prevented from being too large and the fructose syrup is not easy to discharge;

[0015] (3) The scraper film evaporator for fructose syrup concentration, through the cooperation of the limiting ring and the annular groove, the upper end of the distributor can be guided, the support plate can support the bottom of the distributor, and the stability of the distributor in the rotating process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is an external structure schematic view of the utility model;

[0018] Figure 3 It is an internal structure schematic view of the utility model;

[0019] Figure 4 It is a structure schematic view of the distributor of the utility model;

[0020] Figure 5 It is the internal structure schematic view of the upper shell of the utility model.

[0021] In the drawing: 1, upper shell; 2, middle shell; 3, lower shell; 4, conical head; 5, feed inlet; 6, distributor; 7, fan blade; 8, motor; 9, rotating shaft; 10, main gear; 11, from gear; 12, gear ring; 13, heating jacket; 14, scraper; 15, discharge port; 16, sealing ring; 17, limiting ring; 18, annular groove; 19, support plate; 20, shaft sleeve; 21, first steam inlet; 22, steam outlet; 23, exhaust port, 24, flange, 25, spiral half pipe, 26, first steam inlet, 27, condensate outlet. DETAILED DESCRIPTION

[0022] The utility model will be further described below in conjunction with specific implementation, wherein, the drawing is only used for example description, and the representation is only schematic diagram, and not physical drawing, and it can not be understood as the limitation of the utility model, in order to better illustrate the specific embodiment of the utility model, some components of the drawing will be omitted, enlarged or reduced, and it does not represent the size of actual product, for the person skilled in the art, some known structure and its description in the drawing can be omitted, based on the specific embodiment in the utility model, all other specific embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0023] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "front", "back", "upper", "lower" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore can not be understood as the limitation of the utility model indicated or implied by the device or element. The device or element must have a particular orientation, a particular orientation and operation, so it can not be understood as the limitation of the utility model. In addition, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0025] Please refer to Figures 1-5The utility model provides a kind of scraper film evaporator, including upper shell 1, middle shell 2, lower shell 3 and conical head 4 connected in sequence, and the middle shell 2 and lower shell 3, lower shell 3 and conical head 4 between are fixedly installed by flange 24, by evaporator is divided into different shell, it is convenient to overhaul and maintenance to evaporator inside, sealing ring 16 is embeddedly installed between adjacent two flanges 24, by the setting of sealing ring 16, the sealing property of evaporator can be improved.

[0026] With reference to Figure 2 、 Figure 3 and Figure 4 The side of upper shell 1 is equipped with feed inlet 5, the inside of upper shell 1 is equipped with distributor 6, the lower part of distributor 6 is provided with multiple flaps 7 along the circumferential direction, the top of upper shell 1 is fixedly installed with motor 8, the output end of motor 8 is fixedly connected with rotating shaft 9, the surface of rotating shaft 9 is fixedly connected with main gear 10, one side of main gear 10 is engaged with from gear 11, from gear 11 is rotatably installed on the inner top wall of upper shell 1, the inner circumference of distributor 6 is fixedly connected with gear ring 12, from gear 11 is engaged with gear ring 12, by the setting of feed inlet 5, distributor 6, flap 7, motor 8, rotating shaft 9, main gear 10, from gear 11 and gear ring 12, liquid enters from feed inlet 5 and falls on distributor 6, start motor 8 to drive rotating shaft 9 to rotate, drive main gear 10 to rotate by rotating shaft 9, drive from gear 11 to rotate by main gear 10, drive gear ring 12 to rotate by from gear 11, drive distributor 6 to rotate by gear ring 12, make distributor 6 drive flap 7 to rotate, make liquid evenly distribute to the inner wall of evaporator everywhere, to improve the concentration effect of liquid.

[0027] Wherein, the inner top wall of upper shell 1 is equipped with limit ring 17, the upper end of distributor 6 is equipped with annular groove 18, limit ring 17 is slidably connected with annular groove 18, by the cooperation of limit ring 17 and annular groove 18, can play the guiding role to the upper end of distributor 6, the lower of rotating shaft 9 is installed with support plate 19, rotating shaft 9 is connected with support plate 19 by shaft sleeve 20, by the setting of support plate 19, can play the supporting role to the bottom of distributor 6, improve the stability during the rotation of distributor 6.

[0028] With reference to Figure 2The outer side wall of the middle shell 2 and the lower shell 3 is provided with a heating jacket 13, the two sides of the heating jacket 13 are respectively provided with a first steam inlet 21 and a steam outlet 22, steam is delivered into the heating jacket 13 through the first steam inlet 21 to heat and concentrate the material liquid passing through the middle shell 2 and the lower shell 3, the outer surface of the conical head 4 is spirally provided with a spiral half pipe 25, one end of the spiral half pipe 25 is provided with a second steam inlet 26, and the other end of the spiral half pipe 25 is provided with a condensed liquid outlet 27, the concentrated fructose syrup is heated, the flowability of the fructose syrup is increased, and the discharging efficiency is improved. The lower end of the rotating shaft 9 extends into the middle shell 2 and the lower shell 3 and is fixedly sleeved with a scraper 14, when the rotating shaft 9 drives the distributor 6 to rotate, the rotating shaft 9 drives the scraper 14 to rotate in the opposite direction of the distributor 6 at the same time, so that the scraper 14 uniformly scrapes the material liquid on the inner wall of the shell to form a film, the bottom of the conical head 4 is provided with a discharge port 15, through which the concentrated material can be discharged, and the side, away from the inlet port 5, of the upper shell 1 is provided with an exhaust port 23, through which the secondary steam can be discharged.

[0029] The working principle and use process of the utility model are as follows: the material liquid falls on the distributor 6 after entering from the inlet port 5, the motor 8 is started to drive the rotating shaft 9 to rotate, the main gear 10 is driven to rotate through the rotating shaft 9, the driven gear 11 is driven to rotate through the main gear 10, the gear ring 12 is driven to rotate through the driven gear 11, the distributor 6 is driven to rotate through the gear ring 12, the fan blade 7 is driven to rotate through the distributor 6, so that the material liquid is uniformly distributed from the inner wall of the uniform distributor evaporator, thereby improving the concentration effect of the material liquid; when the rotating shaft 9 drives the distributor 6 to rotate, the rotating shaft 9 drives the scraper 14 to rotate in the opposite direction of the distributor 6 at the same time, so that the scraper 14 uniformly scrapes the material liquid on the inner wall of the shell to form a film, and steam is delivered into the heating jacket 13 through the steam inlet 21 to heat and concentrate the material liquid passing through the middle shell 2 and the lower shell 3.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An wiped film evaporator characterized by: The utility model provides a kind of material mixing device, including sequentially connected upper shell (1), middle shell (2), lower shell (3) and conical head (4), the side of the upper shell (1) is equipped with feed inlet (5), the inside of the upper shell (1) is equipped with distributor (6), the lower part of distributor (6) is provided with multiple fan leaves (7) in circumferential direction, the top of the upper shell (1) is fixedly installed with motor (8), the output end of the motor (8) is fixedly connected with rotating shaft (9), the surface of the rotating shaft (9) is fixedly connected with main gear (10), the side of the main gear (10) is engaged with from gear (11), the from gear (11) is rotatably installed on the inner top wall of the upper shell (1), the inner circumference of the distributor (6) is fixedly connected with gear ring (12), the from gear (11) is engaged with gear ring (12), the outer side wall of the middle shell (2) and lower shell (3) is equipped with heating jacket (13), the lower end of the rotating shaft (9) extends to the middle shell (2) and lower shell (3) and is fixedly sleeved with scraper (14), the bottom of the conical head (4) is equipped with discharge port (15).

2. The wiped film evaporator of claim 1, wherein: The middle shell (2) and lower shell (3) between, lower shell (3) and conical head (4) between are fixedly installed by flange (24), and sealing ring (16) is installed between adjacent two flanges (24) embedding.

3. The wiped film evaporator of claim 1, wherein: The inner top wall of the upper shell (1) is equipped with limit ring (17), the upper end of the distributor (6) is equipped with annular groove (18), and the limit ring (17) is slidably connected with the annular groove (18).

4. The wiped film evaporator of claim 1, wherein: The rotating shaft (9) is installed with support plate (19) below the distributor (6), and the rotating shaft (9) is connected with the support plate (19) through the shaft sleeve (20).

5. The wiped film evaporator of claim 1, wherein: The two sides of the heating jacket (13) are respectively equipped with first steam inlet (21) and steam outlet (22), and the heating jacket (13) includes a plurality of half-pipes vertically fixed to the surface of the shell, which are spaced apart on the outer surface of the middle shell (2) and the lower shell (3).

6. The wiped film evaporator of claim 1, wherein: The side of the upper shell (1) away from the feed inlet (5) is equipped with exhaust port (23).

7. The wiped film evaporator of claim 1, wherein: The outer surface of the conical head (4) is spirally provided with spiral half-pipe (25), one end of the spiral half-pipe (25) is provided with second steam inlet (26), and the other end of the spiral half-pipe (25) is provided with condensate outlet (27).

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