Scraper film evaporator with intermittent rotation function

Abstract

The utility model relates to the technical field of scraper film evaporators, in particular to a scraper film evaporator with an intermittent rotating function, which comprises an evaporation barrel, a feeding pipe is arranged on the outer side wall of the top end of the evaporation barrel, an outer jacket is arranged on the outer side wall of the middle position of the evaporation barrel, and a rotating shaft is arranged on the outer jacket. A heating interlayer is arranged on the inner side of the outer jacket, a liquid accumulation cavity is formed in the bottom end of the evaporation barrel, a liquid outlet pipe is arranged at the bottom end of the liquid accumulation cavity, and a shaft rod is arranged in the evaporation barrel. According to the utility model, through the arrangement of the film scraping plate, the driving motor drives the shaft rod to intermittently rotate through the transmission mechanism, so that viscous liquid is convenient to gather and flow downwards again after being scraped, viscous materials are convenient to flow downwards on the inner wall of the evaporation barrel, and the film scraping plate can push the materials downwards during revolution so as to assist the materials in moving downwards; and materials with high viscidity can be conveniently treated, so that the viscous materials can conveniently move downwards, and liquid accumulation and blockage in the evaporation barrel are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a scraper film evaporator technical field, specifically a scraper film evaporator with intermittent rotation function. BACKGROUND

[0002] The scraper film evaporator is provided with a heating steam jacket outside the shell, and a rotatable scraper inside the shell. The 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 driving of gravity and the rotating scraper. The completed liquid is discharged from the bottom of the evaporator. When the material moves downward, it mainly relies on the gravity of the material to slide downward by itself. However, for materials with high viscosity, there is strong adhesion between the material and the inner wall after the formation of the film, which affects the sliding rate of the material and thus affects the processing efficiency. SUMMARY

[0003] The utility model discloses a scraper film evaporator with intermittent rotation function to solve the problems raised in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A scraper film evaporator with intermittent rotation function, comprising an evaporation cylinder, an inlet pipe is formed on the outer side wall of the top end of the evaporation cylinder, an outer jacket is arranged on the outer side wall of the middle position of the evaporation cylinder, a heating layer is formed on the inner side of the outer jacket, a liquid accumulation cavity is formed on the bottom end of the evaporation cylinder, an outlet pipe is formed on the bottom end of the liquid accumulation cavity, a shaft is arranged in the evaporation cylinder, the bottom end of the shaft is rotatably connected with the evaporation cylinder, a shaft sleeve pipe is rotatably sleeved on the outer side wall of the top end of the shaft, a distributor is fixedly connected to the bottom end of the shaft sleeve pipe below the inlet pipe, a bracket is fixedly connected to the top end of the evaporation cylinder, a driving motor is fixedly installed on the top end of the bracket, a transmission mechanism is transmissionally connected between the output end of the driving motor and the top end of the shaft, a plurality of membrane scraping plates are fixedly connected to the outer side wall of the shaft below the shaft sleeve pipe at equal intervals, and a steam outlet is formed on the top end of the evaporation cylinder.

[0006] Further, a heat source inlet is formed on one side of the top end of the heating layer, a heat source outlet is formed on the other side of the bottom end of the heating layer, and a condensate water outlet is formed on one side of the bottom end of the heating layer.

[0007] Further, a spiral plate is fixedly connected between the inner walls of the two sides of the heating layer, and the spiral plate divides the space in the heating layer into a spiral shape.

[0008] Further in, the transmission mechanism includes a rotating shaft, the bottom end of the rotating shaft is rotatably connected with the top end of the evaporation cylinder body, a rotating disc is fixedly sleeved on the outer side wall of the top end of the rotating shaft, a limiting disc and a circular rod are fixedly connected to the top surface of the rotating disc, an intermittent disc is fixedly connected to the top end of the shaft rod, a plurality of limiting notches are annularly and equiangularly arranged on the outer side wall of the intermittent disc, and a long groove is arranged between any two adjacent limiting notches, and a speed reducer gear box is transmissionally connected between the output end of the driving motor and the top end of the rotating shaft.

[0009] Further in, the top end of the shaft sleeve pipe is rotatably connected with the top end of the evaporation cylinder body, and gears are fixedly sleeved on the outer side wall of the top end of the shaft sleeve pipe and the bottom end of the rotating shaft, and the two gears are engaged.

[0010] Further in, the outer side wall of the shaft sleeve pipe is fixedly sleeved with a gas-liquid separation plate above the distributor.

[0011] Further in, the wiper plate is spiral-shaped.

[0012] Further in, a flow guide cone is fixedly connected to the inner bottom surface of the liquid accumulation cavity, and a converging portion is arranged on the inner wall of the bottom end of the evaporation cylinder body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By the arrangement of the wiper plate, the driving motor drives the shaft rod to intermittently rotate through the transmission mechanism, so that the plurality of wiper plates on the shaft rod intermittently rotate, thereby facilitating the downward flow of the viscous liquid after being scraped flat, facilitating the downward flow of the viscous material on the inner wall of the evaporation cylinder body, and the wiper plate revolves downward to push the material, thereby assisting the downward movement of the material, facilitating the treatment of the material with high viscosity, thereby facilitating the downward movement of the viscous material and reducing the liquid accumulation and congestion in the evaporation cylinder body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is the overall structure schematic view of the utility model;

[0016] Fig. 2 is the structure schematic view of the shaft rod and the shaft sleeve pipe in the utility model;

[0017] Fig. 3 is the structure schematic view of the top end of the evaporation cylinder body in the utility model;

[0018] Fig. 4 is the structure schematic view of the transmission mechanism in the utility model;

[0019] Fig. 5 is the structure schematic view of the wiper plate in the utility model.

[0020] In the figure: 100, evaporation cylinder; 110, convergence part; 120, liquid accumulation cavity; 121, liquid outlet pipe; 122, flow guide cone; 130, outer jacket; 131, heat source inlet; 132, heat source outlet; 133, condensed water outlet; 140, heating interlayer; 141, spiral plate; 150, feed pipe; 160, steam outlet; 200, shaft; 210, wiped film plate; 300, shaft sleeve; 310, distributor; 320, gas-liquid separation plate; 400, driving motor; 410, speed reduction gear box; 500, support; 600, transmission mechanism; 610, rotating shaft; 620, gear; 630, rotating disc; 631, limiting disc; 632, round rod; 640, intermittent disc; 641, long groove; 642, limiting notch part. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figs. 1-3 In the embodiments of the present application, a wiped film evaporator with intermittent rotation function includes an evaporation cylinder 100, a feed pipe 150 is arranged on the top outer wall of the evaporation cylinder 100, an outer jacket 130 is arranged on the outer wall of the middle position of the evaporation cylinder 100, a heating interlayer 140 is arranged in the inner side of the outer jacket 130, a liquid accumulation cavity 120 is arranged at the bottom end of the evaporation cylinder 100, a liquid outlet pipe 121 is arranged at the bottom end of the liquid accumulation cavity 120, a shaft 200 is arranged in the evaporation cylinder 100, the bottom end of the shaft 200 is rotationally connected with the evaporation cylinder 100, a shaft sleeve 300 is rotationally sleeved on the top outer wall of the shaft 200, a distributor 310 is fixedly connected to the bottom end of the shaft sleeve 300 below the feed pipe 150, a support 500 is fixedly connected to the top end of the evaporation cylinder 100, a driving motor 400 is fixedly installed on the top end of the support 500, a transmission mechanism 600 is transmissionally connected between the output end of the driving motor 400 and the top end of the shaft 200, a plurality of wiped film plates 210 are fixedly connected to the outer wall of the shaft 200 below the shaft sleeve 300 at equal intervals, and a steam outlet 160 is arranged at the top end of the evaporation cylinder 100.

[0023] Specifically, the liquid material is fed from the feed pipe 150, the driving motor 400 drives the shaft rod 200 to rotate intermittently through the transmission mechanism 600, so that the plurality of wiper plates 210 on the shaft rod 200 rotate intermittently, and the material is uniformly distributed to the inner wall of the evaporation cylinder 100 through the distributor 310. Then, the rotation of the wiper plate 210 coats the material on the inner wall of the evaporation cylinder 100 to form a thin film. The material is evaporated and concentrated in the process of moving downward. Through the intermittent rotation of the wiper plate 210, the viscous material is facilitated to move downward, and the accumulation and congestion of the liquid in the evaporation cylinder 100 are reduced.

[0024] As shown in Figs. 1-4 In the embodiment, the heating layer 140 is provided with a heat source inlet 131 at the top end side, a heat source outlet 132 at the bottom end side, and a condensate outlet 133 at the bottom end side. The inner walls of the heating layer 140 are fixedly connected with a spiral plate 141, which divides the space in the heating layer 140 into a spiral shape. The transmission mechanism 600 includes a rotating shaft 610, the bottom end of which is rotatably connected with the top end of the evaporation cylinder 100. The top end of the rotating shaft 610 is fixedly sleeved with a rotating disc 630. The top surface of the rotating disc 630 is fixedly connected with a limiting disc 631 and a circular rod 632. The top end of the shaft rod 200 is fixedly connected with an intermittent disc 640. A plurality of limiting notches 642 are annularly and equiangularly arranged on the outer side wall of the intermittent disc 640. Long grooves 641 are arranged between adjacent two limiting notches 642. The output end of the driving motor 400 is transmissionally connected with the top end of the rotating shaft 610 through a speed reducer gear box 410, which is fixedly connected with the inner wall of the support 500.

[0025] In the embodiment, the high-temperature steam is fed from the heat source inlet 131, moves downward in the heating layer 140 in a spiral manner, and is discharged from the heat source outlet 132. The generated condensate is discharged from the condensate outlet 133. The arrangement of the spiral plate 141 improves the uniformity of the heating of the heating layer 140 by the steam. When the output end of the driving motor 400 rotates, the rotating shaft 610 is driven to rotate through the speed reducer gear box 410. The rotating shaft 610 drives the rotating disc 630, the limiting disc 631, and the circular rod 632 to rotate. When the circular rod 632 slides into the long groove 641, the revolution of the circular rod 632 drives the intermittent disc 640 to rotate. When the limiting disc 631 is coupled with the limiting notch 642, the intermittent disc 640 is in a stationary state, thereby achieving the intermittent rotation of the shaft rod 200.

[0026] As shown in Figs. 1-5As shown, in the embodiment, the top end of the shaft sleeve pipe 300 is rotationally connected with the top end of the evaporation cylinder 100, the outer side wall of the top end of the shaft sleeve pipe 300 and the bottom end of the rotating shaft 610 are both fixedly sleeved with the gear 620, the two gears 620 are engaged, the outer side wall of the shaft sleeve pipe 300 is fixedly sleeved with the gas-liquid separation plate 320 at the position above the distributor 310, the wiper plate 210 is spiral-shaped, the inner bottom surface of the liquid accumulation cavity 120 is fixedly connected with the flow guide cone 122, and the bottom end inner wall of the evaporation cylinder 100 is provided with the converging part 110.

[0027] In specific implementation, the rotating shaft 610 drives the shaft sleeve pipe 300 to rotate through the two gears 620 when rotating, so that the shaft sleeve pipe 300 is in a continuous rotating state, facilitating the distributor 310 to disperse the material, through the arrangement of the flow guide cone 122, the concentrated material is facilitated to be dispersed to the four directions, so as to be discharged from the liquid outlet pipe 121, through the arrangement of the wiper plate 210, the wiper plate 210 will also push the material downward when revolving, so as to assist the downward movement of the material, facilitating the processing of the material with high viscosity.

[0028] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0029] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A scraped-film evaporator with intermittent rotation function, comprising an evaporation cylinder (100), characterized in that, An inlet pipe (150) is provided on the outer wall of the top end of the evaporation cylinder (100). An outer jacket (130) is provided on the outer wall of the middle position of the evaporation cylinder (100). A heating jacket (140) is provided on the inner side of the outer jacket (130). A liquid accumulation chamber (120) is provided at the bottom end of the evaporation cylinder (100). A liquid outlet pipe (121) is provided at the bottom end of the liquid accumulation chamber (120). A shaft (200) is provided inside the evaporation cylinder (100). The bottom end of the shaft (200) is rotatably connected to the evaporation cylinder (100). The outer wall of the top end of the shaft (200) is rotatably sleeved. The evaporator has a bushing (300), the bottom end of which is fixedly connected to a distributor (310) below the feed pipe (150). The top end of the evaporator cylinder (100) is fixedly connected to a bracket (500), and a drive motor (400) is fixedly installed on the top end of the bracket (500). The output end of the drive motor (400) is connected to the top end of the shaft (200) by a transmission mechanism (600). Multiple scraper plates (210) are fixedly connected at equal intervals on the outer wall of the shaft (200) below the bushing (300). The top end of the evaporator cylinder (100) has a steam outlet (160).

2. A scraped film evaporator with intermittent rotation function according to claim 1, characterized in that, A heat source inlet (131) is provided on one side of the top end of the heating jacket (140), a heat source outlet (132) is provided on the other side of the bottom end of the heating jacket (140), and a condensate outlet (133) is provided on one side of the bottom end of the heating jacket (140).

3. A scraped-film evaporator with intermittent rotation function according to claim 1, characterized in that, A spiral plate (141) is fixed between the inner walls of both sides of the heating interlayer (140), and the spiral plate (141) divides the space inside the heating interlayer (140) into a spiral shape.

4. A scraped film evaporator with intermittent rotation function according to claim 1, characterized in that, The transmission mechanism (600) includes a rotating shaft (610), the bottom end of which is rotatably connected to the top end of the evaporator cylinder (100). A turntable (630) is fixedly sleeved on the outer side wall of the top end of the rotating shaft (610). A limiting disc (631) and a round rod (632) are fixedly connected to the top surface of the turntable (630). An intermittent disc (640) is fixedly connected to the top end of the shaft (200). Multiple limiting notches (642) are opened at equal angles on the outer side wall of the intermittent disc (640), and a long groove (641) is opened between two adjacent limiting notches (642). A reduction gearbox (410) is connected between the output end of the drive motor (400) and the top end of the rotating shaft (610). The reduction gearbox (410) is fixedly connected to the inner wall of the bracket (500).

5. A scraped film evaporator with intermittent rotation function according to claim 4, characterized in that, The top end of the bushing (300) is rotatably connected to the top end of the evaporator cylinder (100). Gears (620) are fixedly sleeved on the outer side wall of the top end of the bushing (300) and the bottom end of the rotating shaft (610), and the two gears (620) mesh with each other.

6. A scraped film evaporator with intermittent rotation function according to claim 4, characterized in that, The outer wall of the bushing (300) is fixedly fitted with a gas-liquid separation plate (320) above the distributor (310).

7. A scraped film evaporator with intermittent rotation function according to claim 4, characterized in that, The scraper plate (210) is spiral-shaped.

8. A scraped film evaporator with intermittent rotation function according to claim 4, characterized in that, A guide cone (122) is fixedly connected to the inner bottom surface of the liquid accumulation chamber (120), and a converging part (110) is provided on the inner wall of the bottom end of the evaporation cylinder (100).

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