A conveying device and a ceramsite production line

Abstract

The utility model provides a kind of conveying device and ceramsite production line, conveying device includes conveying mechanism, guide rail, swing mechanism and hot baking mechanism, conveying mechanism has the conveying belt of moving along conveying direction;Guide rail is erected in the start of conveying mechanism, the inclined surface is on the guide rail, for ceramsite rolls to conveying belt;Swing mechanism movable end is connected with the conveying mechanism, drives the conveying mechanism to reciprocate up and down;Hot baking mechanism includes convex strip.The utility model promotes ceramsite to form rolling by guide rail with dead weight, enters the conveying belt of conveying mechanism, cooperates the swing action of swing mechanism, reciprocatingly tilts conveying mechanism, maintains the rolling of ceramsite, and in the conveying direction of ceramsite, by the blocking effect of convex strip, promotes ceramsite to roll along the outer surface of convex strip, overcomes convex strip and forms lifting, and ceramsite is empty and forms enough gap, for hot air penetration and drying.

Description

Technical Field

[0001] This utility model relates to the field of ceramsite production technology, specifically to a conveying device and a ceramsite production line. Background Technology

[0002] Expanded ceramsite sand is mainly made from clay, slate, shale, coal gangue, and industrial solid waste through ceramic sintering. Current expanded ceramsite sand production involves crushing the raw materials and then forming them into spherical structures using a pelletizing machine. Direct calcination of these materials can cause cracking, affecting the quality of the expanded ceramsite sand. Therefore, preheating and drying of the semi-finished expanded ceramsite sand is necessary. Generally, manufacturers use belt conveyors to transport the semi-finished expanded ceramsite sand to drying equipment for pre-drying. This production line involves multiple steps—transportation, drying, transfer, and then calcination—resulting in low efficiency.

[0003] In the prior art, in order to improve efficiency, a heating unit can be set up for pre-drying during transportation, thereby reducing the process steps of transportation, drying, transfer and calcination to pre-drying transportation and calcination. For example, Chinese Patent 201520927060.8 discloses a ceramsite sand granulation equipment, including a granulator, a screen and a belt conveyor for transporting the semi-finished ceramsite sand in the granulator to the screen. The belt conveyor includes a conveyor belt and a mounting frame set above the conveyor belt. At least two heating lamps for providing heat to the semi-finished ceramsite sand on the conveyor belt to dry the semi-finished ceramsite sand are arranged on the mounting frame above the conveyor belt along the conveying direction of the conveyor belt.

[0004] The existing technology has the following problems: the ceramic particles on the conveyor belt are prone to static accumulation, which is not conducive to hot air penetration and drying. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a conveying device to solve the technical problems in the prior art where ceramsite on the conveyor belt is prone to static accumulation and the bottom layer of ceramsite is not conducive to hot air penetration and drying.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a conveying device, comprising: A conveying mechanism having a conveyor belt that moves along the conveying direction; A guide rail is installed at the starting end of the conveying mechanism, and the guide rail has an inclined surface for the ceramsite to roll onto the conveyor belt; A swing mechanism, the movable end of which is connected to the conveying mechanism, drives the conveying mechanism to swing up and down reciprocally; and The hot drying mechanism includes raised strips, several of which are installed on the conveying mechanism and abut against the upper surface of the conveyor belt to lift and swell the traveling ceramsite. Several hot air vents are provided on the raised strips for blowing out hot air.

[0007] In some embodiments, the hot drying mechanism further includes a plurality of hot air ducts, which are sequentially installed on the outside of the conveying mechanism along the conveying direction. The air outlet of the hot air duct is connected to a plurality of the protrusions at corresponding positions for conveying hot air, and the temperature of the hot air conveyed by the hot air duct increases sequentially along the conveying direction.

[0008] In some embodiments, the hot drying mechanism further includes side air strips disposed on both sides of the conveying mechanism and connected to the air outlet of the corresponding hot air duct, for blowing hot air from both sides.

[0009] In some embodiments, the hot air drying mechanism further includes a top air strip disposed on the top of the conveying mechanism and connected to the air outlet of the corresponding hot air duct for blowing hot air from the top.

[0010] In some embodiments, the convex strip is arc-shaped.

[0011] In some embodiments, the conveying mechanism is provided with baffles that abut against both sides of the top of the conveyor belt.

[0012] In some embodiments, a barrier is connected between the two sides of the baffles on the side closest to the starting end of the conveying mechanism.

[0013] In some embodiments, the swing mechanism includes a fixed frame, a swing frame, and a hydraulic push rod. The swing frame is hinged to one end of the fixed frame, and the two ends of the hydraulic push rod are respectively hinged to the swing frame and the fixed frame. The conveying mechanism is mounted on the swing frame.

[0014] In some embodiments, an insulating shell is also included, which is fitted over the outside of the conveying mechanism.

[0015] Secondly, this utility model also provides a ceramsite production line, including the conveying device as described in any of the above.

[0016] Compared with the prior art, the conveying device provided by this utility model causes the ceramsite to roll under its own weight through the guide rail and enter the conveyor belt of the conveying mechanism. With the swinging action of the swinging mechanism, the conveying mechanism is tilted back and forth to maintain the rolling of the ceramsite. In the conveying direction of the ceramsite, the convex strips act as stops, causing the ceramsite to roll along the outer surface of the convex strips and rise over the convex strips. The ceramsite is lifted into the air and forms a sufficient gap for hot air to penetrate and dry. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the conveying device provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the swinging motion of the conveying device provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the heat insulation shell of the conveying device provided in this embodiment of the utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Conveying mechanism; 101. Conveyor belt; 102. Baffle; 103. Enclosure; 2. Guide rail; 3. Swinging mechanism; 31. Fixed frame; 32. Swinging frame; 33. Hydraulic push rod; 4. Heating mechanism; 41. Raised strip; 42. Hot air outlet; 43. Hot air duct; 44. Side air strip; 45. Top air strip; 5. Insulation shell. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] To address the technical problem of ceramsite's tendency to accumulate statically, hindering hot air penetration and drying, this invention provides a conveying device. This device uses a guide rail to cause the ceramsite to roll under its own weight, entering the conveyor belt of the conveying mechanism. Combined with the oscillating motion of the oscillating mechanism, the conveying mechanism is tilted back and forth, maintaining the rolling of the ceramsite. Furthermore, in the direction of the ceramsite's movement, the convex strips act as stoppers, causing the ceramsite to roll along the outer surface of the strips, rising and creating sufficient gaps for hot air penetration and drying.

[0021] It should be noted that the conveying device described in this utility model is used for, but not limited to, conveying ceramsite. For ease of explanation, this utility model only uses the application of the conveying device to ceramsite conveying as an example. The principle of the conveying device applied to other types of equipment is essentially the same as that applied to ceramsite conveying, and will not be described in detail here.

[0022] Please see Figure 1-3This utility model provides a conveying device, which includes a conveying mechanism 1, a guide rail 2, a swinging mechanism 3, and a heating and drying mechanism 4. The conveying mechanism 1 has a conveyor belt 101 that moves along the conveying direction for conveying ceramsite. The guide rail 2 is mounted on the starting end of the conveying mechanism 1 and has an inclined surface that guides the ceramsite onto the conveyor belt 101, allowing it to roll onto the conveyor belt 101 and initiate an initial rolling motion. The swinging mechanism 3 is connected to the conveying mechanism 1 at its movable end, driving the conveying mechanism 1 to swing up and down. The swinging range of the swinging mechanism 3 is limited to swinging below the horizontal line, forming a basic inclined angle. When the ceramsite rolls onto the conveyor belt 101, due to its inclined angle, it can continue to roll downwards at an angle, avoiding accumulation. Furthermore, the swinging motion can create a shaking effect on the ceramsite, providing a loosening effect. The heating and drying mechanism 4 includes protrusions 41 and several... The aforementioned protrusions 41 are installed on the conveying mechanism 1 and abut against the upper surface of the conveyor belt 101, used to lift and jerk the moving ceramsite. The protrusions 41 are provided with several hot air vents 42 for blowing out hot air. The protrusions 41 are fixed on the frame of the conveying mechanism 1 and are in a stationary state, while the conveyor belt 101 is in a state of movement relative to the protrusions 41 to transport the ceramsite. The ceramsite has both the rolling effect of the inclined surface and the conveying effect of the conveyor belt 101. During the journey, it will pass over the protrusions 41, which are like sills that can lift the ceramsite. As the ceramsite rolls, it rolls along the outer surface of the protrusions 41, forming a positional lift. After passing over the protrusions 41, it rises and falls again, similar to a throwing action, which can further disperse the ceramsite. The hot air vents 42 are used to discharge hot air for drying, to dry the dispersed ceramsite with hot air, penetrating the gaps between the ceramsite from bottom to top, resulting in a more thorough and efficient drying effect.

[0023] Understandably, rolling conveying promotes the dispersion of ceramsite and increases the gap between ceramsite particles; the lifting and throwing motion can further expand the gap between ceramsite particles and disperse them in three-dimensional space, which is more conducive to hot air penetration; rolling can also promote uniform heating of the outer periphery of ceramsite particles.

[0024] It should be noted that the conveying mechanism 1 can be a belt conveyor, and the conveyor belt 101 is the conveyor belt of the belt conveyor; the conveyor belt can be a metal mesh chain plate with a nano-ceramic hydrophobic layer coated on the surface, or a high-temperature resistant composite belt. There is no single limitation here, as long as it meets the tolerance of conveying and drying at the same time.

[0025] In one embodiment, please refer to Figure 1To achieve segmented hot air drying and better pre-drying quality, the hot air drying mechanism 4 further includes several hot air ducts 43. These hot air ducts 43 are sequentially installed along the conveying direction on the outside of the conveying mechanism 1. The outlet of each hot air duct 43 is connected to a plurality of corresponding protrusions 41, and the hot air temperature of each duct 43 increases sequentially along the conveying direction. The temperature ranges from 60-120℃ in the low-temperature zone, 150-250℃ in the medium-temperature zone, and 280-350℃ in the high-temperature zone, forming a stepped hot air drying process.

[0026] In this embodiment, the hot air duct 43 can be connected to a steam hot air blower to provide hot air for drying. The steam heat exchanger transfers the heat of boiler steam to the air to generate clean hot air, and the condensate can be recycled. Alternatively, existing mature conveying systems with heating air, such as hot air furnaces, can be used. The fuel is burned in the combustion chamber, and the high-temperature flue gas heats the air through the heat exchanger to generate high-temperature hot air, thus achieving the desired temperature and hot air effect.

[0027] It should be noted that hot drying can also use microwaves to penetrate the inside of the material to stimulate moisture evaporation, while hot air simultaneously removes surface steam; or far-infrared radiation can be used to heat the surface layer, with hot air penetrating deep into the interior.

[0028] In one embodiment, please refer to Figure 1 In order to provide multi-directional hot air drying, the hot drying mechanism 4 also includes side air strips 44, which are disposed on both sides of the conveying mechanism 1 and connected to the air outlet of the corresponding hot air pipe 43, for blowing hot air from both sides to form a more thorough hot air drying.

[0029] Furthermore, the hot drying mechanism 4 also includes a top air strip 45, which is disposed on the top of the conveying mechanism 1 and connected to the air outlet of the corresponding hot air pipe 43, for blowing hot air from the top, and can form a surrounding hot air drying in conjunction with the protruding strip 41 and the side air strip 44.

[0030] Optionally, the side air strip 44 is fixedly connected to the protruding strip 41, and the top air strip 45 is fixedly connected to the top of the side air strip 44.

[0031] Understandably, the side air strip 44 and the top air strip 45 are connected and communicate with the corresponding protruding strip 41, and each of them has an air outlet for guiding and blowing out hot air.

[0032] In one embodiment, please refer to Figure 1 To avoid jamming of the ceramic particles, the protrusion 41 is arc-shaped, allowing the ceramic particles to pass smoothly.

[0033] Understandably, the height of the raised strip 41 can be set according to the diameter of the ceramic particles being produced.

[0034] In one embodiment, please refer to Figure 1 To provide protection on both sides during the conveying of ceramsite, the conveying mechanism 1 is provided with baffles 102 that abut against the top sides of the conveyor belt 101 to prevent the ceramsite from falling out from both sides in the conveying direction. The conveyor belt 101, the baffles 102, and the protrusions 41 all slide relative to each other.

[0035] Furthermore, in order to prevent the particles from falling out from the starting end during the swinging motion, a barrier 103 is connected between the two sides of the baffles 102 near the starting end of the conveying mechanism 1 to protect that end and prevent the ceramic particles from falling out from that end.

[0036] In one embodiment, please refer to Figure 1 and Figure 2 In order to generate the swinging motion of the conveying mechanism 1, the swinging mechanism 3 includes a fixed frame 31, a swing frame 32, and a hydraulic push rod 33. The swing frame 32 is hinged to one end of the fixed frame 31, and the two ends of the hydraulic push rod 33 are respectively hinged to the swing frame 32 and the fixed frame 31. The conveying mechanism 1 is mounted on the swing frame 32. By extending and retracting the hydraulic push rod 33, the swing frame 32 can be driven to swing up and down, thereby driving the conveying mechanism 1 to swing up and down.

[0037] Understandably, the swing mechanism 3 can also be a crank-slider type swing mechanism, where the motor drives the crank disc to rotate, and the connecting rod converts the circular motion into the linear reciprocating motion of the slider within the guide rail. The conveyor belt support is fixedly connected to the slider. Alternatively, the swing mechanism 3 can be a cam type swing mechanism, where a servo motor drives a customized cam to rotate, and the cam profile pushes a roller follower, which is amplified by the swing arm to form the conveyor belt swing. Both the crank-slider type and cam type swing mechanisms are existing structures and will not be elaborated upon here; achieving the swing driving effect is sufficient.

[0038] In one embodiment, please refer to Figure 3 In order to keep the temperature and reduce heat loss, an insulation shell 5 is also included, which is sleeved on the outside of the conveying mechanism 1. It is used to cover the drying area, provide external shielding and a certain insulation effect, and reduce heat loss.

[0039] Understandably, the insulation shell 5 can be made of aerogel composite board and placed over the drying area.

[0040] This utility model also provides a ceramsite production line, including a conveying device as described in any of the above embodiments, for connecting to the feed inlet of the calcining kiln, preheating and drying the ceramsite, and preventing ceramsite with high moisture content from directly entering the calcining kiln for high-temperature calcination.

[0041] To better understand this utility model, the following is combined with... Figures 1 to 3The technical solution of this utility model is described in detail as follows: The guide rail 2 is an inclined bucket body with a downward slope, used to guide the ceramsite to roll downward onto the conveyor belt 101 of the conveying mechanism 1; the hydraulic push rod 33 of the swing mechanism 3 performs reciprocating extension and retraction, driving the swing frame 32 to swing up and down reciprocally, and always maintaining a certain downward tilt angle. Under this tilt angle, the ceramsite rolling onto the conveyor belt 101 can maintain a certain degree of rolling conveying, cooperating with the conveyor belt 101 to move in the conveying direction; during the movement, it contacts the protrusion 41, and under the action of the protrusion 41, it is lifted and rises, and after passing over the protrusion 41, it falls onto the conveyor belt 101. The conveying process continues, effectively dispersing the ceramsite particles. Hot air, blown from the hot air inlet 42 of the bottom protrusion 41, penetrates the gaps between the particles from bottom to top, drying them. This, combined with the side air strips 44 and top air strips 45, forms a surrounding hot air drying process. The protrusion 41 is arranged in multiple sections along the conveying direction, creating low-temperature, medium-temperature, and high-temperature zones for stepped hot air drying, in conjunction with the adjustment of the hot air temperature. The rolling conveying process promotes the dispersion of the ceramsite particles, increasing the gaps between them. The lifting and tossing motion further expands the gaps between the particles, allowing them to disperse in three dimensions, which facilitates hot air penetration. The rolling motion also promotes uniform heating of the outer periphery of the ceramsite particles.

[0042] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A conveying device, characterized in that, include: A conveying mechanism having a conveyor belt that moves along the conveying direction; A guide rail is installed at the starting end of the conveying mechanism, and the guide rail has an inclined surface for the ceramsite to roll onto the conveyor belt; A swing mechanism, the movable end of which is connected to the conveying mechanism, drives the conveying mechanism to swing up and down reciprocally; and The hot drying mechanism includes raised strips, several of which are installed on the conveying mechanism and abut against the upper surface of the conveyor belt to lift and swell the traveling ceramsite. Several hot air vents are provided on the raised strips for blowing out hot air.

2. The conveying device according to claim 1, characterized in that, The hot air drying mechanism also includes several hot air ducts, which are installed sequentially on the outside of the conveying mechanism along the conveying direction. The air outlet of the hot air duct is connected to a plurality of the protrusions at corresponding positions for conveying hot air, and the temperature of the hot air conveyed by the hot air duct increases sequentially along the conveying direction.

3. The conveying device according to claim 2, characterized in that, The hot drying mechanism also includes side air strips, which are disposed on both sides of the conveying mechanism and connected to the air outlet of the corresponding hot air duct, for blowing hot air from both sides.

4. The conveying device according to claim 2, characterized in that, The hot air drying mechanism also includes a top air strip, which is disposed on the top of the conveying mechanism and connected to the air outlet of the corresponding hot air duct, for blowing hot air from the top.

5. The conveying device according to claim 1, characterized in that, The convex strip is arc-shaped.

6. The conveying device according to claim 1, characterized in that, The conveying mechanism is equipped with baffles that abut against both sides of the top of the conveyor belt.

7. The conveying device according to claim 6, characterized in that, A barrier is connected between the two sides of the baffles on the side closest to the starting end of the conveying mechanism.

8. The conveying device according to claim 1, characterized in that, The swing mechanism includes a fixed frame, a swing frame, and a hydraulic push rod. The swing frame is hinged to one end of the fixed frame, and the two ends of the hydraulic push rod are respectively hinged to the swing frame and the fixed frame. The conveying mechanism is installed on the swing frame.

9. The conveying device according to claim 1, characterized in that, It also includes an insulation shell, which is fitted onto the outside of the conveying mechanism.

10. A ceramic aggregate production line, characterized in that, Includes the conveying device as described in any one of claims 1-9.

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