Air cooling device of screw conveyer and screw conveyer

Abstract

The utility model provides a spiral conveyer air cooling device and a spiral conveyer, and belongs to the technical field of material conveying equipment. One end of the air inlet pipeline is communicated with an air outlet of the fan; the wind scooper is arranged on the periphery of the spiral conveyor body in a surrounding and covering mode, an annular air channel is formed between the wind scooper and a shell of the spiral conveyor body, and the other end of the air inlet pipeline communicates with the annular air channel; the exhaust pipeline is connected to the outer wall of the wind scooper, and one end of the exhaust pipeline communicates with the annular air duct; the air deflectors are arranged in the annular air duct at intervals; an air guide opening communicated with the annular air duct is formed between each air guide plate and the annular air duct; every two adjacent air guide openings are formed in the annular air channel in a staggered mode in the air flowing direction. According to the utility model, the aim of cooling materials can be fulfilled while the materials are conveyed, and the investment and operation cost of a cooling system can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material conveying equipment technical field, more specifically, relate to a spiral conveyor air cooling device and spiral conveyor. BACKGROUND

[0002] The spiral conveyor is a kind of machine that utilizes motor to drive spiral rotation to move material, to realize horizontal or inclined conveying purpose, with compact structure, good sealing, and the advantages such as closed transportation.

[0003] For the material with higher temperature and cooling requirement, water-cooled spiral conveyor is usually used, closed cooling water is used to exchange heat with high-temperature material, to achieve the effect of cooling material.Cooling water system is complex, and investment and operation cost are higher, and the inner wall of cooling water pipe will scale after long-term operation, to affect cooling effect.

[0004] To realize the purpose of cooling material while conveying material, and reduce the investment and operation cost of cooling system, new spiral conveyor cooling device needs to be designed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a spiral conveyor air cooling device and spiral conveyor, to realize the purpose of cooling material while conveying material, and reduce the investment and operation cost of cooling system.

[0006] To realize the purpose, the first aspect of the utility model provides a spiral conveyor air cooling device, comprising:

[0007] Fan;

[0008] Air inlet pipeline, one end of which is communicated with the air outlet of the fan;

[0009] Air guide cover, which is arranged around the outer periphery of the spiral conveyor body, and the annular air duct is formed between the air guide cover and the shell of the spiral conveyor body, and the other end of the air inlet pipeline is communicated with the annular air duct;

[0010] Exhaust duct, which is connected to the outer wall of the air guide cover, and one end of the exhaust duct is communicated with the annular air duct;And,

[0011] Multiple air guide plates, which are arranged in the annular air duct;Each air guide plate is provided with an air guide opening communicated with the annular air duct between the air guide plate and the annular air duct;Along the direction of air flow, two adjacent air guide openings are arranged in the annular air duct.

[0012] Further, two adjacent air baffles are connected to the outer shell of the screw conveyor body and the inner wall of the air deflector cover in the air flow direction, L / 2 < the height of each air baffle < L, L is the distance between the outer shell of the screw conveyor body and the inner wall of the air deflector cover, and the gap between the end of each air baffle and the outer shell of the screw conveyor body or the inner wall of the air deflector cover forms the air deflector.

[0013] Further, two ends of each air baffle are connected to the outer shell of the screw conveyor body and the inner wall of the air deflector cover, and the air deflector is arranged on each air baffle.

[0014] Further, the air inlet pipeline and the air outlet pipeline are arranged on opposite sides of the air deflector cover.

[0015] Further, the air inlet pipeline and the air outlet pipeline are arranged on the same side of the air deflector cover.

[0016] Further, the air inlet pipeline is further provided with a check valve, and the check valve is arranged close to the air outlet of the fan.

[0017] Further, the fan is a variable frequency fan.

[0018] The second aspect of the utility model provides a screw conveyor which comprises a screw conveyor body and the screw conveyor air cooling device of any one of the preceding aspects, and the air deflector cover of the screw conveyor air cooling device is arranged around the outer periphery of the screw conveyor body.

[0019] Further, the screw conveyor body is further provided with a thermocouple at the discharge port.

[0020] Further, the fan of the screw conveyor air cooling device is a variable frequency fan, and the thermocouple is connected to the variable frequency fan.

[0021] Compared with the prior art, the utility model has the following technical effects:

[0022] The air cooling device of the spiral conveyor of the utility model delivers cooling air through the fan, uses the flow of the cooling air in the annular air duct to take away the heat of the spiral conveyor body, achieves the purpose of cooling the material in the spiral conveyor body, compared with water cooling delivery, the air cooling device of the spiral conveyor of the utility model adopts air cooling material, can effectively reduce the investment and operation cost of the cooling system.

[0023] The spiral conveyor of the embodiment is provided with the air cooling device of the spiral conveyor of the embodiment, and has the advantages of the air cooling device of the spiral conveyor of the embodiment, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0025] Figure 1 The structure schematic view of the spiral conveyor provided for the embodiments of the utility model is shown in the figure;

[0026] Figure 2 The structure schematic view of the spiral conveyor provided for the embodiments of the utility model is shown in the figure; Figure 1 The partial side view structure schematic view, the air guide opening is the gap arranged at one end of the air guide plate, and the structure inside the spiral conveyor body is not shown in the figure;

[0027] Figure 3 The structure schematic view of another air guide plate arranged in the air guide cover provided for the embodiments of the utility model, the air inlet pipeline and the air outlet pipeline are arranged at opposite sides of the air guide cover, and the air guide opening is arranged on the air guide plate;

[0028] Figure 4 The structure schematic view of another air guide plate arranged in the air guide cover provided for the embodiments of the utility model, the air inlet pipeline and the air outlet pipeline are arranged at the same side of the air guide cover, and the air guide opening is arranged on the air guide plate.

[0029] In the figure, various reference signs are as follows:

[0030] 1, fan, 2, air inlet pipe, 3, air deflector, 4, annular air duct, 5, air outlet pipe, 6, air deflector, 7, air outlet, 8, check valve, 9, screw conveyor body, 10, thermocouple. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, the following will be further described in detail with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not intended to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0035] Please refer to Figures 1-4 A screw conveyor air cooling device and a screw conveyor provided by the embodiments of the present application will now be described, and the arrow direction in the figure represents the air flow direction.

[0036] Example 1

[0037] The utility model discloses a spiral conveyor air cooling device, including: fan 1, air inlet pipeline 2, air deflector 3, exhaust duct 5 and a plurality of air deflector 6, air inlet pipeline 2 one end is communicated with the air outlet of fan 1, air deflector 3 surrounds the outer periphery of spiral conveyor body 9 and is established, and the annular air duct 4 is formed between air deflector 3 and the shell of spiral conveyor body 9, and the other end of air inlet pipeline 2 is communicated with annular air duct 4, exhaust duct 5 is connected in the outer wall of air deflector 3, and one end of exhaust duct 5 is communicated with annular air duct 4, a plurality of air deflector 6 is spaced apart and established in annular air duct 4, every air deflector 6 and annular air duct 4 are all equipped with the air deflector 7 of communicating annular air duct 4, along the air flow direction, the adjacent two air deflector 7 are staggered and set up in annular air duct 4, to make air in annular air duct 4 present S type flow.

[0038] The utility model discloses a spiral conveyor air cooling device in use, air deflector 3 surrounds the outer periphery of spiral conveyor body 9 and is established, and the annular air duct 4 is formed between air deflector 3 and the shell of spiral conveyor body 9, and then starts fan 1, and the cooling air is transported through fan 1, and the heat of spiral conveyor body 1 is taken away by the flow of cooling air in annular air duct 4, reaches the purpose of cooling the material in spiral conveyor body 1, compared with water cooling delivery, the utility model discloses a spiral conveyor air cooling device adopts air cooling material, can effectively reduce the investment and operating cost of cooling system. And the utility model discloses a plurality of air deflector 6 is set up in annular air duct 4, and air deflector 6 can increase the heat dissipation area of spiral conveyor body 1, and improve the heat exchange effect, along the air flow direction, the adjacent two air deflector 7 are staggered and set up in annular air duct 4, to make air in annular air duct 4 present S type flow, can increase the heat exchange time of cooling air and spiral conveyor body 1, improve the utilization efficiency of cooling air, to further reduce the energy consumption of fan, to further reduce operating expenses.

[0039] Further, along the air flow direction, the adjacent two air deflector 6 are connected on the shell of spiral conveyor body 1 and the inner wall of air deflector 3 respectively, L / 2 < the height of every air deflector 6 < L, L is the distance between the shell of spiral conveyor body 1 and the inner wall of air deflector 3, and the gap between the end of every air deflector 6 and the shell of spiral conveyor body 1 or the inner wall of air deflector 3 constitutes the air deflector 7. Figure 2 As shown in

[0040] Further, the two ends of every air deflector 6 are connected on the shell of spiral conveyor body 1 and the inner wall of air deflector 3 respectively, and the air deflector 7 is set up on every air deflector 6. Figure 3 , Figure 4 As shown in

[0041] That is, in the embodiment, one end of each of the air guide plates 6 is connected to the inner wall of the housing or the air baffle 3 of the screw conveyor body 1, and the other end is a free end, and a gap exists between the free end and the inner wall of the housing or the air baffle 3 of the screw conveyor body 1, and the gap constitutes the air guide opening 7 for connecting the annular air channel 4. In addition, the two ends of each of the air guide plates 6 of the embodiment can also be connected to the housing of the screw conveyor body 1 and the inner wall of the air baffle 3 respectively, and the air guide opening 7 for connecting the annular air channel 4 is formed on each of the air guide plates 6. Specifically, the air guide opening 7 can be a through hole slot formed on the air guide plate 6.

[0042] Further, in the embodiment, the air inlet pipe 2 and the air outlet pipe 5 can be arranged on opposite sides of the air baffle 3, as shown in Figure 2 、 Figure 3 ; in addition, the air inlet pipe 2 and the air outlet pipe 5 can also be arranged on the same side of the air baffle 3, as shown in Figure 4 .

[0043] In Figure 2 , the air inlet pipe 2 and the air outlet pipe 5 are arranged on opposite sides of the air baffle 3, and along the direction of air flow, the adjacent two air guide plates 6 are connected to the housing of the screw conveyor body 1 and the inner wall of the air baffle 3 respectively, and the gap between the end of each air guide plate 6 and the housing of the screw conveyor body 1 or the inner wall of the air baffle 3 constitutes the air guide opening 7. After the cold air enters from the air inlet pipe 2, it is divided into two symmetrical paths in the annular air channel 4, and the left and right cold air flows in an S shape in the semi-annular air channel 4, that is, after winding around the housing of the screw conveyor body 1 for half a circle, it is discharged from the air outlet pipe 5, and the heat exchange and cooling process of the cold air and the material in the screw conveyor body 1 is completed.

[0044] In Figure 4 , the air inlet pipe 2 and the air outlet pipe 5 are arranged on the same side of the air baffle 3, and the two ends of each of the air guide plates 6 are connected to the housing of the screw conveyor body 1 and the inner wall of the air baffle 3 respectively, and along the direction of air flow, the air guide opening 7 for connecting the annular air channel 4 is formed on each of the air guide plates 6 (at this time, the air guide opening 7 is not formed on the air guide plate 6 arranged between the air inlet pipe 2 and the air outlet pipe 5), and after the cold air enters from the air inlet pipe 2, it flows in an S shape in the annular air channel 4, that is, after winding around the housing of the screw conveyor body 1 for one circle, it is discharged from the air outlet pipe 5, and the heat exchange and cooling process of the cold air and the material in the screw conveyor body 1 is completed.

[0045] Further, the air inlet pipe 2 of the embodiment is also provided with a check valve 8, and the check valve 8 is arranged close to the air outlet of the fan 1. By arranging the check valve 8 on the air inlet pipe 2, the stability and safety of the air force conveying system can be improved.

[0046] Further, the fan 1 of the embodiment is a variable frequency fan, which can adjust the delivery power according to the required air volume, and is more conducive to reducing the system energy consumption and reducing the operation cost.

[0047] Embodiment 2

[0048] The utility model discloses an air cooling device of screw conveyor, which comprises a fan 1, an air inlet pipeline 2, an air outlet pipeline 5, a plurality of air guide plates 6 and an air guide cover 3. The fan 1 is arranged on the air inlet pipeline 2, and the air outlet pipeline 5 is arranged on the air guide cover 3. The air guide cover 3 is arranged around the outer periphery of the screw conveyor body 1. One end of the air inlet pipeline 2 is in communication with the air outlet of the fan 1, and the air guide cover 3 and the shell of the screw conveyor body 9 form an annular air duct 4. The other end of the air inlet pipeline 2 is in communication with the annular air duct 4. The air outlet pipeline 5 is connected to the outer wall of the air guide cover 3, and one end of the air outlet pipeline 5 is in communication with the annular air duct 4. The other end of the air outlet pipeline 5 is connected to a suitable safe position to discharge the heat-exchanged air into the atmosphere. The plurality of air guide plates 6 are arranged in the annular air duct 4 at intervals. Each air guide plate 6 is provided with an air guide opening 7 in communication with the annular air duct 4. Along the air flow direction, the adjacent two air guide openings 7 are arranged in the annular air duct 4 in a staggered manner, so that the air flows in an S shape in the annular air duct 4.

[0049] In the embodiment, the screw conveyor body 1 is composed of a motor, a shell, a screw and the like. One end of the screw conveyor body 1 is provided with a feeding port, and the other end is provided with a discharging port. The motor drives the screw to rotate, and the material is conveyed from the feeding port to the discharging port. The fan 1 can be installed on the base of the screw conveyor body 1.

[0050] The screw conveyor of the embodiment uses the fan 1 to convey cooling air, and uses the flow of the cooling air in the annular air duct 4 to carry away the heat of the screw conveyor body 1, so as to achieve the purpose of cooling the material in the screw conveyor body 1. Compared with the water-cooled conveying, the screw conveyor of the embodiment uses air to cool the material, which can effectively reduce the investment and operation cost of the cooling system. In addition, the embodiment sets the plurality of air guide plates 6 in the annular air duct 4. The air guide plates 6 can increase the heat dissipation area of the screw conveyor body 1 and improve the heat exchange effect. Along the air flow direction, the adjacent two air guide openings 7 are arranged in the annular air duct 4 in a staggered manner, so that the air flows in an S shape in the annular air duct 4. This can increase the heat exchange time of the cooling air and the screw conveyor body 1, improve the utilization efficiency of the cooling air, and further reduce the energy consumption of the fan, so as to further reduce the operation cost.

[0051] Further, the screw conveyor body 1 is further provided with a thermocouple 10 at the discharging port. The thermocouple 10 can detect the temperature of the material at the discharging port in real time, and then adjust the air volume of the fan 1, so as to achieve good air cooling effect.

[0052] Further, the fan 1 of the screw conveyor air cooling device is a variable frequency fan, and the thermocouple 10 is interlocked with the variable frequency fan. In this way, the cooling air volume output by the variable frequency fan can be adjusted in real time according to the temperature signal fed back by the thermocouple 10. During operation, the variable frequency fan and the screw conveyor body 1 are started at the same time, and run at rated power. According to the temperature signal fed back by the thermocouple 10, the operating power of the variable frequency fan is gradually reduced, so as to adjust the cooling air volume. Under the premise of ensuring the cooling effect of the material, the operating cost is reduced.

[0053] In the embodiment, the variable frequency fan, the thermocouple 10, the air inlet pipeline 2 and the air outlet pipeline 5 can be purchased as finished products, the air deflector 6 and the air deflector cover 3 can be processed from steel plates, and the air deflector 6 can be welded between the outer shell of the screw conveyor body 1 and the inner wall of the air deflector cover 3. Welding the air deflector 6 can increase the heat dissipation area of the screw conveyor body 1 and improve the heat exchange effect. The specifications, sizes and other parameters of all components of the conveyor of the embodiment need to be determined according to the temperature of the material and the parameters of the screw conveyor body 1.

[0054] The above embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent range of the utility model. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A screw conveyor air cooling device, characterized by, Comprising: A fan; An air inlet duct, one end of which is connected to the air outlet of the fan; A wind guide cover, which is arranged around the outer periphery of the spiral conveyor body. An annular air duct is formed between the wind guide cover and the outer shell of the spiral conveyor body. The other end of the air inlet duct is connected to the annular air duct; An air exhaust duct, which is connected to the outer wall of the wind guide cover, and one end of the air exhaust duct is connected to the annular air duct; and A plurality of wind guide plates, which are arranged at intervals in the annular air duct; a wind guide opening connecting the annular air duct is provided between each wind guide plate and the annular air duct; along the air flow direction, two adjacent wind guide openings are arranged in a staggered manner in the annular air duct.

2. A spiral conveyor air cooling device as claimed in claim 1, characterized in that Along the air flow direction, two adjacent wind guide plates are respectively connected to the outer shell of the spiral conveyor body and the inner wall of the wind guide cover. L / 2 < the height of each wind guide plate < L, where L is the distance between the outer shell of the spiral conveyor body and the inner wall of the wind guide cover. The gap between the end of each wind guide plate and the outer shell of the spiral conveyor body or the inner wall of the wind guide cover forms the wind guide opening.

3. An air cooling device for a screw conveyor as claimed in claim 1, characterized in that Both ends of each wind guide plate are respectively connected to the outer shell of the spiral conveyor body and the inner wall of the wind guide cover, and the wind guide opening is provided on each wind guide plate.

4. A spiral conveyor air cooling device as claimed in claim 2 or 3, characterized in that The air inlet duct and the air exhaust duct are respectively arranged on opposite sides of the wind guide cover.

5. A spiral conveyor air cooling device as claimed in claim 2 or 3, characterized in that The air inlet duct and the air exhaust duct are arranged on the same side of the wind guide cover.

6. An air cooling device for a screw conveyor as defined in claim 1, characterized in that A check valve is further provided on the air inlet duct, and the check valve is arranged close to the air outlet of the fan.

7. An air cooling device for a screw conveyor as defined in claim 1, characterized in that The fan is a variable-frequency fan.

8. A screw conveyor, characterized by Comprising a spiral conveyor body and the spiral conveyor air cooling device according to any one of claims 1-7, and the wind guide cover of the spiral conveyor air cooling device is arranged around the outer periphery of the spiral conveyor body.

9. A screw conveyor as claimed in claim 8, characterised in that A thermocouple is further provided at the discharge port of the spiral conveyor body.

10. A screw conveyor as claimed in claim 9, characterised in that The fan of the spiral conveyor air cooling device is a variable-frequency fan, and the thermocouple is interlocked with the variable-frequency fan.

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