CN210952266U - A continuous longan drying device - Google Patents

Abstract

The utility model discloses a continuous longan drying device, which comprises a frame, a material conveying structure is arranged on the frame, two ends of the material conveying structure are respectively provided with a feeding structure and a material receiving structure, and the material conveying structure is provided with a heating Structure; the material transmission structure is a linear vibrating screen, and the material transmission structure includes a screen box arranged on the frame through a spring seat. The frame is provided with an exciting motor that drives the screen box to vibrate around the side wall of the screen box. There is a screen inside, the screen forms the longan transmission area, and both ends of the screen extend out of the screen box along the length direction; the feeding structure is set above the feeding end of the screen extending out of the screen box, and the receiving structure is set on the screen extending out of the screen box. Below the other end of the screen box; the heating structure includes a first heating pipe, a second heating pipe and a third heating pipe arranged on the bottom and top inner walls of the screen box. The continuous longan drying device of the utility model has the characteristics of high degree of continuity, good drying effect and energy saving.

Description

A continuous longan drying device

technical field

The utility model relates to the technical field of cold fruit food processing, in particular to a continuous longan drying device.

Background technique

Dried longan, also known as dried longan, is a nutritional tonic that is popular among consumers and has a large consumer market all over my country. The concentration of soluble substances in dried longan is increased to the extent that it is difficult for microorganisms to use, and the activity of enzymes is also inhibited, so it can be stored for a long time.

The conventional preparation method of dried longan mainly includes processes such as boiling, drying, peeling and shelling. Most of the existing longan drying devices are static drying, which results in uneven drying and poor quality of the dried longan produced.

In view of this, Chinese utility model patent CN 208755140U discloses a longan drying device, comprising a drying box, a first bracket, a second bracket and a placing rack, and an electric heater is provided on the inner wall of the drying box The drying box is provided with the first bracket and the second bracket, and both the first bracket and the second bracket are fixed on the drying box through brackets. Inside, the first bracket and the second bracket are both provided with guide rails, the placement rack includes a lower casing and an upper casing, the lower casing is snap-connected with the upper casing, and the Both the lower casing and the upper casing are provided with several through holes, the bottom of the lower casing is provided with a counterweight, the two ends of the lower casing are provided with walking trolleys, and the lower casing is connected to the lower casing. The traveling trolley is rotatably connected, and the traveling trolley moves on the guide rail. During the drying process of the utility model, the placing rack is in a moving state, so as to ensure that the dried longan is dried evenly and the quality of the dried longan is guaranteed.

However, the drying process is mainly realized by moving the seat carrier of the walking trolley on the guide rail, the structure design is complicated, the loading capacity of the walking trolley is limited, and the drying efficiency is low.

Utility model content

The purpose of the utility model is to provide a continuous longan drying device, which has the characteristics of high degree of continuity, good drying effect and energy saving.

The utility model can be realized through the following technical solutions:

The utility model discloses a continuous longan drying device, comprising a frame, including a frame, a material conveying structure is arranged on the frame, two ends of the material conveying structure are respectively provided with a feeding structure and a material receiving structure. There is a heating structure on it; the material transmission structure is a linear vibrating screen, and the material transmission structure includes a screen box arranged on the frame through a spring seat, and the frame is provided with a vibration excitation driving the cyclone vibration of the screen box outside the side wall of the screen box The motor, the screen box is provided with a screen, the screen forms the longan transmission area, and both ends of the screen extend out of the screen box along the length direction; the feeding structure is set above the feeding end of the screen extending out of the screen box, and the receiving structure is set at The screen mesh extends below the other end of the screen box; the heating structure includes a first heating pipe, a second heating pipe and a third heating pipe arranged on the bottom and top inner walls of the screen box, the first heating pipe is close to the feeding end, and the third heating pipe The tube is close to the discharge end, the second heating tube is arranged between the first heating tube and the second heating tube, and the heating power of the first heating tube, the second heating tube and the third heating tube is arranged in a gradient increasing manner.

Further, the screen box is provided with a blower at the discharge port, and the direction of the blower blows from the discharge end to the feed end. By setting the blower, it not only avoids the heat transfer from the discharge end to the outside, but also makes the heat transfer from high temperature to low temperature, improves the temperature uniformity of heat in the screen box, prolongs its holding time, and reduces energy consumption. Improve drying effect.

Further, the first heating pipe, the second heating pipe and the third heating pipe are all arranged in pairs, and are respectively arranged on the top inner wall and the bottom inner wall of the screen box. Set in pairs, it can effectively dry longan dynamically in the upper and lower directions to improve the drying effect.

Further, the blowers are arranged in pairs at the discharge end of the screen box, and are separated from the upper and lower sides of the screen, so as to effectively prevent heat from radiating outward from the mouth of the discharge end.

Further, the screen is inclined downward from the feeding structure to the receiving structure, and the inclination angle of the screen is 0-30°, which not only ensures the transfer of materials, but also adjusts the speed of material transfer according to the inclination angle.

Further, the excitation motor is a long cylindrical excitation motor or a short excitation motor, which can be flexibly selected according to actual needs to meet different usage requirements.

Further, the excitation motors are arranged in groups outside the two side walls of the screen box, and the two excitation motors are connected by a universal joint drive shaft to ensure the stability of the transmission.

Further, the inner wall of the sieve box is also provided with a sterilizing ultraviolet lamp to sterilize the dried longan after drying and prolong its shelf life.

The utility model is a continuous longan drying device, which has the following beneficial effects:

First, the degree of continuity is high. By using a linear vibrating screen as the material transfer structure, the longan to be dried is placed on the screen. Driven by the excitation motor, the screen vibrates forward, driving the longan forward, and the first heating The longan is dynamically dried by the tube, the second heating tube and the third heating tube to achieve continuous baking and effectively improve the drying efficiency;

Second, the drying effect is good. It adopts the structure of a linear vibrating screen, and the screen box has a built-in heating tube. The longan is dried during the movement of the screen. The whole process is a dynamic drying process. The heating temperature is gradually increased along the feeding direction, which produces moisture. Poor gradient, improve drying effect;

Third, save energy. The first heating pipe, the second heating pipe and the third heating pipe are built-in and sieve box, which can effectively prevent the heat from dissipating. The first heating pipe, the second heating pipe and the third heating pipe The gradient difference setting is formed, combined with Guin's law of heat transfer, it can effectively slow down the speed of heat transfer to the outside, effectively keep it within the screening, improve its utilization rate, and reduce energy consumption;

Fourth, the structure is simple. Compared with the complex structure design of the prior art, the entire device only needs to use a linear vibrating screen as the material transfer structure, supplemented by a feeding structure, a receiving structure, and a heating structure. The structure and components of the entire device are simple.

Description of drawings

Accompanying drawing 1 is the structural representation of a kind of continuous longan drying device of the present utility model;

Accompanying drawing 2 is a structural schematic diagram of the connection relationship between the excitation motor and the screen box of a continuous longan drying device of the present invention;

The symbols in the drawings include: 100, frame, 200, feeding structure, 300, receiving structure, 401, spring seat, 402, screen box, 403, screen mesh, 404, excitation motor, 405, first heating pipe , 406, the second heating tube, 407, the third heating tube, 408, the blower, 409, the universal joint drive shaft, 410, the sterilization UV lamp.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the products of the present invention will be described in further detail below with reference to the embodiments and accompanying drawings.

As shown in FIG. 1 and FIG. 2 , the present utility model discloses a continuous drying device for longan, including a frame 100, including a frame 100, the frame 100 is provided with a material conveying structure, and the two ends of the material conveying structure are respectively There is a feeding structure 200 and a receiving structure 300, and a heating structure is arranged on the feeding structure; the feeding structure is a linear vibrating screen, and the feeding structure includes a screen box 402 arranged on the frame 100 through a spring seat 401, and the frame 100 On the outside of the side wall of the screen box 402, there is an excitation motor 404 that drives the screen box 402 to vibrate, and the screen box 402 is provided with a screen mesh 403. The screen mesh 403 forms a longan transmission area, and both ends of the screen mesh 403 extend along the length direction Out of the screen box 402; the feeding structure 200 is arranged above the feeding end of the screen 403 extending out of the screen box 402, and the receiving structure 300 is arranged below the other end of the screen 403 extending out of the screen box 402; the heating structure includes being arranged on the screen box 402 The first heating pipe 405, the second heating pipe 406 and the third heating pipe 407 on the bottom and top inner walls, the first heating pipe 405 is close to the feeding end, the third heating pipe 407 is close to the discharging end, and the second heating pipe 406 is set Between the first heating tube 405 and the second heating tube 406 , the heating power of the first heating tube 405 , the second heating tube 406 , and the third heating tube 407 is set to increase in a gradient.

As shown in FIG. 1 , the screen box 402 is provided with a blower 408 at the discharge port, and the direction of the blower blows from the discharge end to the feed end.

As shown in FIG. 1 , the first heating pipe 405 , the second heating pipe 406 , and the third heating pipe 407 are all arranged in pairs, and are respectively arranged on the top inner wall and the bottom inner wall of the screen box 402 . The blowers 408 are arranged in pairs at the discharge end of the screen box 402 , and are separated from the upper and lower sides of the screen 403 .

As shown in FIG. 1 , the screen mesh 403 is inclined downward from the feeding structure 200 along the receiving structure 300 , and the inclined angle of the screen mesh 403 is 0-30°.

In this embodiment, the excitation motor is a long cylindrical excitation motor or a short excitation motor.

As shown in FIG. 2 , the excitation motors 404 are arranged in groups outside the two side walls of the screen box 402 , and the two excitation motors 404 are connected by a universal joint drive shaft 409 .

As shown in FIG. 1 , the inner wall of the screen box 402 is further provided with a sterilizing ultraviolet lamp 410 .

The action principle of the drying device of the utility model is as follows:

Turn on the first heating tube, the second heating tube, the third heating tube, the sterilizing ultraviolet lamp, and the vibration excitation motor. After the temperature in the screen box reaches the preset temperature, the feeding structure is turned on, and the longan placed in the funnel of the feeding structure falls into the On the screen; the screen moves forward under the drive of the exciting motor, which drives the longan on the screen to enter the screen box for drying; after drying, the screen is moved out of the screen box with the screen and falls into the receiving structure. Complete the entire drying process.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form; any person of ordinary skill in the industry can smoothly implement the invention as shown in the accompanying drawings and the above. The utility model; however, any equivalent changes made by those skilled in the art without departing from the technical solution of the present utility model, can make use of the above-disclosed technical content to make some changes, modifications and evolutions, all of which are the present utility model. At the same time, any modification, modification and evolution of any equivalent changes made to the above embodiments according to the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims (8)

1. a continuous longan drying device, comprising a rack, characterized in that: the rack is provided with a material transfer structure, and both ends of the material transfer structure are respectively provided with a feeding structure and a material receiving structure, and the There is a heating structure on the material transfer structure; The material transmission structure is a linear vibrating screen, and the material transmission structure includes a screen box arranged on the frame through a spring seat, and the frame is provided with a vibration excitation driving the cyclone vibration of the screen box outside the side wall of the screen box. a motor, a screen mesh is arranged in the screen box, the screen mesh forms a longan transmission area, and both ends of the screen mesh extend out of the screen box along the length direction; The feeding structure is arranged above the feeding end of the screen extending out of the screen box, and the receiving structure is arranged below the other end of the screen extending out of the screen box; The heating structure includes a first heating pipe, a second heating pipe and a third heating pipe arranged on the bottom and top inner walls of the screen box, the first heating pipe is close to the feeding end, and the third heating pipe is close to the discharging end , the second heating tube is arranged between the first heating tube and the second heating tube, and the heating powers of the first heating tube, the second heating tube and the third heating tube are arranged in a gradient increasing manner. 2 . The continuous longan drying device according to claim 1 , wherein the screen box is provided with a blower at the discharge port, and the direction of the blower blows from the discharge end to the feed end. 3 . 3. The continuous longan drying device according to claim 2 is characterized in that: the first heating pipe, the second heating pipe and the third heating pipe are all arranged in pairs, and are respectively arranged on the top inner wall of the sieve box and the third heating pipe. bottom inner wall. 4 . The continuous longan drying device according to claim 3 , wherein the blowers are arranged in pairs at the discharge end of the screen box, and are separated from the upper and lower sides of the screen. 5 . 5 . The continuous longan drying device according to claim 4 , wherein the screen mesh is inclined downward from the feeding structure and along the receiving structure, and the inclination angle of the mesh mesh is 0-30°. 6 . . 6 . The continuous longan drying device according to claim 5 , wherein the vibration excitation motor is a long cylindrical vibration motor or a short vibration excitation motor. 7 . 7 . The continuous longan drying device according to claim 6 , wherein the vibration-exciting motors are arranged in groups outside the two side walls of the screen box, and the two vibration-exciting motors pass through the universal joint drive shaft. 8 . connect. 8 . The continuous longan drying device according to claim 7 , wherein the inner wall of the sieve box is further provided with a sterilizing ultraviolet lamp. 9 .

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