Drying equipment for limestone powder production and processing

Abstract

The utility model belongs to the technical field of drying equipment, and particularly relates to drying equipment for limestone powder production and processing, which comprises a conveying box, a conveying belt fixedly mounted at the lower end in the conveying box, and a heating wire mounted at the upper end in the conveying box, a material storage box is fixedly arranged at the upper end of the conveying box, and a slidable screen is arranged in the conveying box and located under the material storage box; firstly, the screen is arranged and driven by the driving motor, the driving motor drives the conveying belt and the screen to work at the same time, the lime drying device has the advantages of being high in structural matching degree and easy to control, lime can be more evenly scattered on the conveying belt through the arranged screen, and therefore the drying effect is better guaranteed; and secondly, a flow guide channel and a heat conducting piece located in the material storage box and a preheating sleeve and a flow guide piece located outside the material storage box are arranged, heat generated by the heating wire is continuously utilized under the action of the heat-resisting draught fan, and the beneficial effects of being high in energy utilization rate and reducing energy consumption are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying equipment, in particular to drying equipment for limestone powder production and processing. Background Art

[0002] The drying equipment commonly used in limestone powder production and processing is mainly drum dryer. This equipment adopts the principle of hot air exchange. The high-temperature hot air contacts the wet stone powder, so that the moisture in the stone powder evaporates and gasifies quickly, thereby achieving the purpose of drying.

[0003] After searching, the Chinese patent announcement (publication) number CN218846660U proposes a dryer for lime drying, including a conveying box, a drying box and a crushing box, the drying box is installed on one side of the upper end surface of the conveying box, a mounting cavity is provided in the shell of the drying box, a first heating wire is installed in the mounting cavity, a rotating shaft symmetrically distributed is rotatably installed in the drying box, a turning plate is installed on the rotating shaft, the crushing box is installed at the upper end of the drying box, the crushing box is connected to the drying box, a symmetrically distributed crushing wheel is rotatably installed in the crushing box, one side end of the conveying box is opened, a second heating wire is installed on the inner wall of the upper end of the conveying box, a driving wheel and a driven wheel symmetrically distributed are rotatably installed in the conveying box, a conveyor belt is provided between the driving wheel and the driven wheel, and other technical solutions have the advantages of being able to crush the broken lime blocks and drying the lime powder twice to achieve a good drying effect, and other technical advantages;

[0004] However, when the material falls from the drying box through the discharge pipe onto the conveyor belt, the lime cannot be evenly spread on the conveyor belt, which will cause accumulation and lead to uneven drying of the lime. Secondly, electric heating wires are installed inside the drying box and the conveyor box at the same time. Firstly, the energy consumption is large, and secondly, the thermal energy utilization rate is low. The heat is discharged before it is fully utilized, resulting in energy loss.

[0005] In order to solve the above problems, the present application proposes a drying device for limestone powder production and processing. Utility Model Content

[0006] The purpose of the utility model is to provide a drying device for limestone powder production and processing, which solves the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a drying device for limestone powder production and processing, comprising a conveying box and a conveyor belt fixedly installed at the lower end of the conveying box, and a heating wire installed at the upper end of the conveying box, a driving motor for driving the conveyor belt is provided on the side of the conveying box, a storage box is fixedly installed on the upper end of the conveying box, a slidable screen is provided inside the conveying box just below the storage box, a slide rail for horizontal sliding of the screen is fixedly provided inside the conveying box, the screen drives the conveyor belt to work in linkage through a transmission component and a driving motor, the screen slides back and forth on the slide rail through the driving motor and the transmission component, a plurality of guide channels distributed horizontally are provided at the bottom of the storage box, a plurality of heat conducting plates are horizontally distributed inside the guide channels, a preheating sleeve is provided on the outside of the storage box, a spiral guide plate is provided inside the preheating sleeve, and an exhaust groove is provided on the upper end of the preheating sleeve.

[0009] Furthermore, the transmission component includes a synchronous pulley arranged between the output end of the driving motor and the conveying box, and an eccentric disk rotatably installed inside the conveying box, a bevel gear pair is arranged between the synchronous pulley and the eccentric disk, and a connecting rod is hinged to one end of the eccentric disk and the screen.

[0010] Furthermore, the eccentric disk is synchronously driven by a driving motor through a synchronous pulley and a bevel gear pair, and the connecting rod is hinged at an eccentric position of the eccentric disk.

[0011] Furthermore, a transfer cover is fixed to the lower end of one side of the preheating sleeve, and the transfer cover is interconnected with one end of the guide channel and also with the bottom of the preheating sleeve. A connecting cover is fixed to the lower end of the other side of the preheating sleeve, and the connecting cover is interconnected with the other end of the guide channel.

[0012] Furthermore, a heat-resistant blower is fixedly mounted on the conveying box, an exhaust end of the heat-resistant blower is connected to a connecting cover, and an air inlet end of the heat-resistant blower is connected to an exhaust pipe.

[0013] Furthermore, the lower end of the air extraction pipe extends to the bottom of the conveying box, and an air extraction hole communicating with the inside and outside is opened in the middle of the bottom of the conveying box, and the air extraction pipe is connected to the air extraction hole and is communicated with each other.

[0014] Furthermore, the screen is also located on one side of the upper end of the conveyor belt.

[0015] The utility model has the following beneficial effects:

[0016] The utility model is provided with a screen, which can spread the lime more evenly on the conveyor belt after being driven, thereby ensuring the drying effect of the material inside the conveyor box, and the screen is driven by the driving motor on the conveyor belt, which has the advantages of linkage and high coordination.

[0017] The utility model arranges a guide channel and a heat conducting sheet at the bottom of the storage box, and then uses a heat-resistant fan to continue to use the hot air flow after the lime on the upper end of the conveyor belt is dried by the heating wire, so as to achieve the purpose of preheating and drying the lime inside the storage box, and effectively improve the utilization rate of thermal energy.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure viewed from above;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure in half section from the main view;

[0023] Figure 4 This is a schematic diagram of the structure of a half-section side view of a material storage box in the utility model;

[0024] Figure 5 It is a structural schematic diagram of the driving motor and the screen mesh connecting member in the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] In the figure: 1. conveying box; 2. conveyor belt; 3. heating wire; 4. driving motor; 5. storage box; 6. screen; 7. slide rail; 8. synchronous pulley; 9. eccentric disk; 10. bevel gear pair; 11. connecting rod; 12. guide channel; 13. heat conducting plate; 14. adapter cover; 15. preheating sleeve; 16. guide plate; 17. exhaust groove; 18. heat-resistant fan; 19. connecting cover; 20. exhaust pipe; 21. exhaust hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] See also Figure 1-5 As shown, the utility model is a drying equipment for limestone powder production and processing, comprising a conveying box 1 and a conveyor belt 2 fixedly installed at the lower end of the conveying box 1, and a heating wire 3 installed at the upper end of the conveying box 1. A driving motor 4 for driving the conveyor belt 2 is provided on the side of the conveying box 1, and a storage box 5 is fixedly installed on the upper end of the conveying box 1. A slidable screen 6 is provided inside the conveying box 1 just below the storage box 5, and a slide rail 7 for horizontal sliding of the screen 6 is fixedly provided inside the conveying box 1. The screen 6 drives the conveyor belt 2 to work in linkage through the transmission component and the driving motor 4, and the screen 6 slides back and forth on the slide rail 7 through the driving motor 4 and the transmission component. A plurality of guide channels 12 distributed horizontally are provided at the bottom of the storage box 5, and a plurality of heat conducting plates 13 are horizontally distributed inside the guide channel 12. A preheating sleeve 15 is provided on the outside of the storage box 5, and a spiral guide plate 16 is provided inside the preheating sleeve 15, and an exhaust groove 17 is provided on the upper end of the preheating sleeve 15.

[0030] Among them, the transmission components include a synchronous pulley 8 arranged between the output end of the driving motor 4 and the conveying box 1, and an eccentric disk 9 rotatably installed inside the conveying box 1, a bevel gear pair 10 is arranged between the synchronous pulley 8 and the eccentric disk 9, and a connecting rod 11 is hinged to one end of the eccentric disk 9 and the screen 6. In this embodiment, a support member is provided inside the conveying box 1 to ensure stable transmission of the synchronous pulley 8, the eccentric disk 9, and the bevel gear pair 10.

[0031] Among them, the eccentric disk 9 is synchronously driven by the driving motor 4 through the synchronous pulley 8 and the bevel gear pair 10, and the connecting rod 11 is hinged at the eccentric position of the eccentric disk 9. In this embodiment, the reciprocating sliding of the screen 6 on the slide rail 7 is achieved through the rotation of the eccentric disk 9 and the connection of the connecting rod 11.

[0032] Among them, a transfer cover 14 is fixed to the lower end of one side of the preheating sleeve 15, and the transfer cover 14 is communicated with one end of the guide channel 12, and is also communicated with the bottom of the preheating sleeve 15. A connecting cover 19 is fixed to the lower end of the other side of the preheating sleeve 15, and the connecting cover 19 is communicated with the other end of the guide channel 12. In this embodiment, the hot air flow after passing through the guide channel 12 is transferred to the inside of the preheating sleeve 15 through the transfer cover 14, which is used for heating the periphery of the storage box 5.

[0033] Among them, a heat-resistant fan 18 is fixedly installed on the conveying box 1, the exhaust end of the heat-resistant fan 18 is connected to the connecting cover 19, and the air inlet end of the heat-resistant fan 18 is connected to the exhaust pipe 20. In this embodiment, the heat-resistant fan 18 serves as a driving component of the hot air flow. In order to ensure the uniformity of the air flow between multiple guide channels 12, a diverter or the like can be set inside the connecting cover 19.

[0034] Among them, the lower end of the exhaust pipe 20 extends to the bottom of the conveying box 1, and an exhaust hole 21 that communicates with the inside and outside is opened in the middle of the bottom of the conveying box 1. The exhaust pipe 20 is connected to the exhaust hole 21 and is interconnected. In this embodiment, the heating wire 3 is located at the upper end of the conveying box 1, and the exhaust hole 21 is located in the middle of the bottom of the conveying box 1. After the heating wire 3 generates heat, it must pass through the conveyor belt 2 before it can enter the exhaust pipe 20 through the exhaust hole 21, so as to reuse the heat energy while avoiding affecting the normal drying of the lime at the upper end of the conveyor belt 2.

[0035] Among them, the screen 6 is also located on one side of the upper end of the conveyor belt 2. In this embodiment, it is ensured that the lime is caught by the screen 6 after falling from the storage box 5, and then the lime is evenly spread on the conveyor belt 2 through the movement of the screen 6.

[0036] It can be understood that first, a screen 6 is set and driven by a driving motor 4. The driving motor 4 drives the conveyor belt 2 and the screen 6 to work at the same time, which has the advantages of high structural coordination and easy control. The set screen 6 can spread the lime more evenly on the conveyor belt 2, thereby better ensuring the drying effect. Secondly, a guide channel 12, a heat conducting plate 13, and an external preheating sleeve 15 and a guide plate 16 are set in the storage box 5, and the heat generated by the heating wire 3 is continued to be utilized under the action of the heat-resistant fan 18, which has the advantages of high energy utilization and reduced energy consumption.

[0037] A specific application of this embodiment is: the heating wire 3 works to heat the inside of the conveying box 1, the driving motor 4 works to drive the conveyor belt 2 to enter the conveying state, and the driving motor 4 starts and drives the eccentric disk 9 to rotate through the synchronous pulley 8 and the bevel gear pair 10. The eccentric disk 9 drives the screen 6 to slide back and forth on the slide rail 7 through the connecting rod 11, and the heat-resistant fan 18 is turned on. The heat-resistant fan 18 absorbs the hot air flow from the bottom of the conveying box 1 through the exhaust hole 21 and the exhaust pipe 20, and enters the guide channel 12 through the connecting cover 19. The air flow passes through the bottom of the storage box 5 through the guide channel 12 and enters the adapter cover 14, and gradually flows upward in a spiral shape along the path of the guide plate 16 inside the preheating sleeve 15, and is finally discharged from the exhaust groove 17;

[0038] Drying of lime: lime falls into the storage box 5 through the feed hopper and crusher at the upper end of the storage box 5. At this time, the lime will contact the guide channel 12. The heat inside the guide channel 12 and the heat conducting plate 13 is conducted to the inside of the storage box 5. The heat is used to heat the lime at the bottom of the storage box 5, and the lime located at the upper end of the outer side of the storage box 5 is also heated. A stirring device can be provided inside the storage box 5 to assist in uniform stirring. The dried lime falls onto the screen 6 through the discharge port at the bottom of the storage box 5. The lime is evenly scattered on the upper end of the conveyor belt 2 through the reciprocating motion of the screen 6. The lime is evenly scattered on the upper end of the conveyor belt 2 during transportation by the conveyor belt 2. The heat generated by the heating wire 3 is dried.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drying device for limestone powder production and processing, comprising a conveying box (1) and a conveying belt (2) fixedly mounted at the lower end of the conveying box (1), and a heating wire (3) mounted at the upper end of the conveying box (1), a driving motor (4) for driving the conveying belt (2) is provided on the side of the conveying box (1), and a material storage box (5) is fixedly mounted at the upper end of the conveying box (1), characterized in that: A slidable screen (6) is provided inside the conveying box (1) directly below the storage box (5); a slide rail (7) for the screen (6) to slide horizontally is fixedly provided inside the conveying box (1); the screen (6) drives the conveyor belt (2) to work in linkage through a transmission component and a drive motor (4); the screen (6) slides back and forth on the slide rail (7) through the drive motor (4) and the transmission component; a plurality of horizontally distributed guide channels (12) are provided through the bottom of the storage box (5); a plurality of horizontally distributed heat conducting plates (13) are provided inside the guide channels (12); a preheating sleeve (15) is provided outside the storage box (5); a spiral guide plate (16) is provided inside the preheating sleeve (15); an exhaust groove (17) is provided at the upper end of the preheating sleeve (15).

2. A drying equipment for limestone powder production and processing according to claim 1, characterized in that: The transmission component comprises a synchronous pulley (8) arranged between the output end of the driving motor (4) and the conveying box (1), and an eccentric disk (9) rotatably installed inside the conveying box (1), a bevel gear pair (10) is arranged between the synchronous pulley (8) and the eccentric disk (9), and a connecting rod (11) is hinged to one end of the eccentric disk (9) and the screen (6).

3. A drying equipment for limestone powder production and processing according to claim 2, characterized in that: The eccentric disk (9) is synchronously driven by a driving motor (4) via a synchronous pulley (8) and a bevel gear pair (10), and the connecting rod (11) is hinged at an eccentric position of the eccentric disk (9).

4. The drying equipment for limestone powder production and processing according to claim 1, characterized in that: A transfer cover (14) is fixed to the lower end of one side of the preheating sleeve (15), and the transfer cover (14) is communicated with one end of the guide channel (12) and is also communicated with the bottom of the preheating sleeve (15). A connecting cover (19) is fixed to the lower end of the other side of the preheating sleeve (15), and the connecting cover (19) is communicated with the other end of the guide channel (12).

5. A drying equipment for limestone powder production and processing according to claim 4, characterized in that: A heat-resistant fan (18) is fixedly mounted on the conveying box (1), the exhaust end of the heat-resistant fan (18) is connected to a connecting cover (19), and the air inlet end of the heat-resistant fan (18) is connected to an exhaust pipe (20).

6. A drying equipment for limestone powder production and processing according to claim 5, characterized in that: The lower end of the air extraction pipe (20) extends to the bottom of the conveying box (1), and an air extraction hole (21) communicating with the inside and outside is opened in the middle of the bottom of the conveying box (1), and the air extraction pipe (20) and the air extraction hole (21) are connected and communicated with each other.

7. The drying equipment for limestone powder production and processing according to claim 1, characterized in that: The screen (6) is also located on one side of the upper end of the conveyor belt (2).

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