Vibrating screen with refrigeration function

Abstract

The utility model discloses a vibrating screen with a refrigeration function. The vibrating screen comprises a vibrating base, a top cover, an upper frame, a middle frame, a bottom frame and a refrigeration mechanism. The vibrating screen can actively refrigerate and actively cool powder, the refrigeration function is integrated to screening equipment, when the powder falls down and is screened in the vibrating screen, the powder is cooled, the continuity of a production line is kept, the conveying distance can be reduced, the occupied space of conveying equipment is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vibrating screen technical field especially relates to a vibrating screen with refrigeration function. BACKGROUND

[0002] In actual powder production, the powder needs to be dried, and the temperature of the dried powder is as high as 270 DEG C. In order to prepare for subsequent screening and packaging, the powder must be cooled. The current cooling process is to use a conveyor belt to carry the powder for transportation, and the powder is naturally cooled during transportation. The conveying distance is long, the production space is large, and the conveying time is very long, so the production efficiency is low. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a vibrating screen with refrigeration function, which solves the problems mentioned in the background.

[0004] To solve the above technical problems, the utility model adopts the technical scheme that:

[0005] A vibrating screen with refrigeration function, comprising a vibrating base, a top cover, an upper frame, a middle frame, a bottom frame and a refrigeration mechanism, the upper frame, the middle frame and the bottom frame are installed in turn from top to bottom above the vibrating base, the top cover is installed above the upper frame, the top cover is provided with a cold air inlet joint and a cold air outlet joint, the inner side of the top cover is provided with an upper cone and a lower cone connected in sequence, the upper cone and the lower cone are both provided with a sandwich, the edge of the upper cone is provided with a first communicating device, one end of the first communicating device is communicated with the cold air inlet joint, the other end of the first communicating device is communicated with the sandwich of the upper cone, the edge of the lower cone is provided with a second communicating device, one end of the second communicating device is communicated with the cold air outlet joint, the other end of the second communicating device is communicated with the sandwich of the lower cone, the edges of the upper cone and the lower cone are communicated through a third communicating device, the bottom of the bottom frame is also provided with a sandwich, and the two side edges of the bottom frame are provided with a cold air outlet communicating device and a cold air inlet communicating device communicated with the sandwich, and the refrigeration mechanism provides cold air through the cold air inlet joint and the cold air inlet communicating device.

[0006] Further, the upper cone is umbrella-shaped, and the lower cone is disc-shaped and has a circular hole in the middle.

[0007] Further, the diameter of the upper cone is smaller than that of the lower cone.

[0008] Further, the upper cone and the top cover, and the upper cone and the lower cone are connected through a support body.

[0009] Further, the upper cone and the lower cone are both made of stainless steel.

[0010] Further, the side edges of the upper frame, the middle frame and the bottom frame are provided with discharge ports.

[0011] Further, the middle of the top cover is provided with a feeding port.

[0012] Further, the refrigeration mechanism comprises a first vortex refrigeration pipe, a second vortex refrigeration pipe, a cold air pipeline and a cold air branch pipe, the first vortex refrigeration pipe and the second vortex refrigeration pipe are provided with cold air flow ports, hot air flow ports and compressed air ports, the cold air flow port of the first vortex refrigeration pipe is connected with the compressed air port of the second vortex refrigeration pipe, the cold air flow port of the second vortex refrigeration pipe is connected with the cold air branch pipe, the cold air branch pipe is connected with one end of the cold air pipeline, and the other end of the cold air pipeline is connected with the cold air inlet joint and the cold air inlet communicator.

[0013] Further, the vibration base comprises a bottom cylinder, a motor, a large disc and a damping spring.

[0014] Beneficial effects:

[0015] The vibration screen in the utility model can actively refrigerate, actively cool the powder, integrate the refrigeration function into the screening equipment, cool the powder when the powder is falling and screening in the vibration screen, keep the production line continuous, thereby being capable of reducing the conveying distance, reducing the land occupation of the conveying equipment and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is the internal view of the utility model;

[0018] Figure 3 It is the plan view of the utility model;

[0019] Figure 4 It is the partial structure diagram in the utility model;

[0020] Figure 5 It is Figure 4 Another view structure diagram of

[0021] The labels in the figure: 1, vibration base; 2, top cover; 3, upper frame; 4, middle frame; 5, bottom frame; 6, upper cone; 7, lower cone; 8, feed inlet; 9, cold gas inlet joint; 10, cold gas outlet joint; 11, cold gas outlet communicator; 12, cold gas inlet communicator; 13, first communicator; 14, third communicator; 15, support body; 16, primary vortex refrigeration pipe; 17, secondary vortex refrigeration pipe; 18, hot gas flow port; 19, cold gas flow port; 20, compressed air port; 21, cold gas branch pipe; 22, cold gas pipeline; 23, discharge port; 24, bottom cylinder; 25, large disc; 26, shock absorbing spring; 27, motor; 28, second communicator. DETAILED DESCRIPTION

[0022] In the description of the embodiments, it should be noted that the terms "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and the like should be broadly understood, for example, can be fixedly connected, can be detachably connected, or can be integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] In addition, unless otherwise specified, the components used in the following embodiments are existing components, and their corresponding connection methods can also be realized by conventional technical means, which will not be described one by one in this application. The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0024] Embodiment 1

[0025] A vibrating screen with refrigeration function, such as Figures 1 to 5As shown, the vibration sieve includes a vibration base 1, a top cover 2, an upper frame 3, a middle frame 4, a bottom frame 5 and a refrigeration mechanism. The upper frame 3, the middle frame 4 and the bottom frame 5 are sequentially arranged above the vibration base 1 from top to bottom, the top cover 2 is arranged above the upper frame 3, the top cover 2 is provided with a cold air inlet joint 9 and a cold air outlet joint 10, and the inner side of the top cover 2 is provided with an upper cone 6 and a lower cone 7 which are connected in sequence. The upper cone 6 and the lower cone 7 are both provided with a sandwich layer, the edge of the upper cone 6 is provided with a first communicating device 13, one end of the first communicating device 13 is connected with the cold air inlet joint 9, the other end of the first communicating device 13 is connected with the sandwich layer of the upper cone 6, the edge of the lower cone 7 is provided with a second communicating device 28, one end of the second communicating device 28 is connected with the cold air outlet joint 10, the other end of the second communicating device 28 is connected with the sandwich layer of the lower cone 7, the edge of the upper cone 6 and the lower cone 7 is connected through a third communicating device 14, the bottom of the bottom frame 5 is also provided with a sandwich layer, and the two sides of the bottom frame 5 are provided with a cold air outlet communicating device 11 and a cold air inlet communicating device 12 which are connected with the sandwich layer, and the refrigeration mechanism provides cold air through the cold air inlet joint 9 and the cold air inlet communicating device 12. The upper cone 6 and the lower cone 7 are both made of stainless steel.

[0026] Specifically, the vibration sieve in the embodiment can simultaneously perform cooling treatment on the powder to be screened during screening. The cold air inlet joint 9 and the cold air outlet joint 10 are arranged on the top cover 2, the cold air inlet joint 9 delivers cold air through the refrigeration mechanism, the cold air is delivered into the sandwich layer of the upper cone 6 through the first communicating device 13, and then delivered into the sandwich layer of the lower cone 7 through the third communicating device 14, and the lower cone 7 delivers the cold air to the cold air outlet joint 10 of the top cover 2 through the second communicating device 28. Specifically, the sandwich layers of the upper cone 6 and the lower cone 7 are air layers which are sealed, only have an air inlet and an air outlet, and therefore the cold air entering the sandwich layers is quickly compressed into a thin cold air layer, fills the conical sandwich layers, cools the conical stainless steel cones, and the cones also radiate the cold air to the space of the vibration sieve through air. Therefore, when the powder to be screened falls into the upper cone 6 and the lower cone 7 from the top cover 2, the powder is first cooled by the air radiated by the cones, then the powder falls on the cones and contacts the low-temperature surface of the cones to transfer heat, and the powder is cooled again. The bottom frame 5 is similar to the cone structure, delivers cold air to the sandwich layer through the cold air inlet communicating device 12, and discharges the gas through the cold air outlet communicating device 11, and therefore the space inside the vibration sieve is at a low temperature due to the low-temperature top cone and the low-temperature bottom frame 5 at the bottom end, so that the powder is in a low-temperature state during screening, and the cooling is completed, and the powder falling into the bottom frame 5 is also further cooled.

[0027] It should be noted that the upper frame 3 and the middle frame 4 can also be cooled by arranging sandwich cone.

[0028] Preferably, the upper cone 6 is umbrella-shaped, and the lower cone 7 is disc-shaped with a circular hole in the middle. The upper cone 6 and the top cover 2, and the upper cone 6 and the lower cone 7 are connected by the support 15. The diameter of the upper cone 6 is smaller than that of the lower cone 7.

[0029] Specifically, the top of the upper cone 6 is pointed, and the periphery thereof is downwardly inclined, so that the poured powder slides downward after contacting the upper cone 6. At this time, the upper cone 6 becomes a cooling device due to the cold air in the interlayer, and the contacted powder is cooled for the first time. Since the area of the lower cone 7 is larger than that of the upper cone 6, the lower cone 7 can receive the sliding powder below the lower cone 6. The lower cone 7 is disc-shaped and inclined from the edge to the middle. The powder falling into the lower cone 7 slides from the edge to the middle, and the interlayer of the lower cone 7 is full of cold air, so that the powder is cooled for the second time. The middle of the lower cone 7, i.e., the center, is provided with a circular hole. The powder cooled for the second time falls into the screening frame through the circular hole for screening.

[0030] Preferably, the side edges of the upper frame 3, the middle frame 4 and the bottom frame 5 are provided with discharge ports 23, the middle of the top cover 2 is provided with a feeding port 8, and the inside of the upper frame 3, the middle frame 4 and the bottom frame 5 is provided with a screening assembly. This structure is prior art, and will not be described here. In use, the powder to be screened is poured into the feeding port 8, and different volumes of the powder are discharged from different discharge ports 23 after screening, so as to realize screening.

[0031] Preferably, the refrigeration mechanism includes a first vortex refrigeration pipe 16, a second vortex refrigeration pipe 17, a cold air pipeline 22 and a cold air branch pipe 21. The first vortex refrigeration pipe 16 and the second vortex refrigeration pipe 17 are provided with cold air flow ports 19, hot air flow ports 18 and compressed air ports 20. The cold air flow port 19 of the first vortex refrigeration pipe 16 is connected with the compressed air port 20 of the second vortex refrigeration pipe 17. The cold air flow port 19 of the second vortex refrigeration pipe 17 is connected with the cold air branch pipe 21. The cold air branch pipe 21 is connected with one end of the cold air pipeline 22. The other end of the cold air pipeline 22 is connected with the cold air inlet 9 and the cold air inlet communicator 12.

[0032] Specifically, the refrigeration mechanism is formed by two vortex refrigeration pipes, i.e., a first-stage vortex refrigeration pipe 16 and a second-stage vortex refrigeration pipe 17, connected in series. Compressed gas enters the first-stage vortex refrigeration pipe 16 from a compressed air port 20, and vortexes are generated in the vortex pipe, and two streams of gas are generated, one being a high-temperature gas stream that flows out from a hot gas stream port 18, and the other being a low-temperature gas stream that flows out from a cold gas stream port 19. The low-temperature gas stream of the first-stage vortex refrigeration pipe 16 enters an inlet of the second-stage vortex refrigeration pipe 17, and again forms separated cold and hot gas streams. Through the step-by-step connection of the vortex refrigeration pipes, each vortex refrigeration pipe can reduce the temperature of the gas by more than 40 degrees Celsius, and the outlet temperature after the two-stage cooling is close to minus 40 degrees Celsius. The effect of generating cold gas is achieved, and the generated cold gas flows into a cold gas branch pipe 21 through the cold gas stream port 19 of the second-stage vortex refrigeration pipe 17. The cold gas is divided into multiple paths through the cold gas branch pipe 21, and is input into the cold gas inlet joint 9 and the cold gas communication vessel 12 through the cold gas pipe 22, respectively, to provide a cooling environment for the upper cone body 6, the lower cone body 7, and the bottom frame 5. The cold gas branch pipe 21 is composed of a base body and a plurality of gas pipe joints, and the inside of the base body is machined into channels that are in communication with each other.

[0033] Preferably, the vibration base 1 includes a bottom cylinder 24, a motor 27, a large plate 25, and a damping spring 26, and provides vibration functions for the vibrating screen. The specific structure and technical principles are prior art, and will not be described here.

[0034] Although the embodiments of the present application are described in the specification, these embodiments are only used as a guide and should not limit the protection scope of the present application. Various omissions, substitutions, and changes made within the scope of the present application should be included in the protection scope of the present application.

Claims

1. A vibrating screen having a refrigeration function, characterized by: The application relates to a refrigeration device, which comprises a vibrating base, a top cover, an upper frame, a middle frame, a bottom frame and a refrigeration mechanism, wherein the upper frame, the middle frame and the bottom frame are sequentially arranged above the vibrating base from top to bottom, the top cover is arranged above the upper frame, the top cover is provided with a cold air inlet joint and a cold air outlet joint, an upper cone and a lower cone are arranged in the middle of the inner side of the top cover and are connected with each other, the upper cone and the lower cone are both provided with a sandwich layer, a first communicating device is arranged at the edge of the upper cone, one end of the first communicating device is connected with the cold air inlet joint, the other end of the first communicating device is connected with the sandwich layer of the upper cone, a second communicating device is arranged at the edge of the lower cone, one end of the second communicating device is connected with the cold air outlet joint, the other end of the second communicating device is connected with the sandwich layer of the lower cone, the edges of the upper cone and the lower cone are connected with each other through a third communicating device, the bottom of the bottom frame is also provided with a sandwich layer, and the two side edges of the bottom frame are provided with a cold air outlet communicating device and a cold air inlet communicating device which are connected with the sandwich layer, and the refrigeration mechanism provides cold air through the cold air inlet joint and the cold air inlet communicating device.

2. The shaker screen with refrigeration function according to claim 1, characterized in that: The upper cone is umbrella-shaped, and the lower cone is disc-shaped and is provided with a circular hole in the middle.

3. The shaker screen with refrigeration function of claim 1, wherein: The diameter of the upper cone is smaller than that of the lower cone.

4. The shaker screen with refrigeration function of claim 1, wherein: The upper cone and the top cover, and the upper cone and the lower cone are connected through supporting bodies.

5. The shaker screen with refrigeration function of claim 1, wherein: The upper cone and the lower cone are both made of stainless steel.

6. The shaker screen with refrigeration function of claim 1, wherein: The side edges of the upper frame, the middle frame and the bottom frame are all provided with discharge ports.

7. The shaker screen with refrigeration function of claim 1, wherein: The middle of the top cover is provided with a feeding port.

8. The shaker screen with refrigeration function of claim 1, wherein: The refrigeration mechanism comprises a primary vortex refrigeration pipe, a secondary vortex refrigeration pipe, a cold air pipeline and a cold air branch pipe, the primary vortex refrigeration pipe and the secondary vortex refrigeration pipe are both provided with a cold air flow port, a hot air flow port and a compressed air port, the cold air flow port of the primary vortex refrigeration pipe is connected with the compressed air port of the secondary vortex refrigeration pipe, the cold air flow port of the secondary vortex refrigeration pipe is connected with the cold air branch pipe, the cold air branch pipe is connected with one end of the cold air pipeline, and the other end of the cold air pipeline is connected with the cold air inlet joint and the cold air inlet communicating device.

9. The shaker screen with refrigeration function according to any one of claims 1 to 8, characterized in that: The vibrating base comprises a bottom cylinder, a motor, a large disc and damping springs.

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