A ceramic aggregate drying device

Abstract

This utility model provides a ceramsite sand drying device, relating to the technical field of drying equipment. It includes a base, with a tilting discharge mechanism mounted on top of the base. The tilting discharge mechanism includes a support block, the lower end of which is fixedly connected to the upper end of the base. A first support is hinged to the upper end of the support block via a pin, and a drying cylinder is fixedly connected to the upper end of the first support. A second support is fixedly connected to the upper end of the base, and a hydraulic cylinder is hinged to the inner wall of the second support via a pin. Through the tilting discharge mechanism, the hydraulic cylinder drives the drying cylinder to tilt around the support block, cooperating with the discharge pipe to achieve rapid and stable discharge, solving the instability of traditional scraping discharge. The tilting mechanism, through a servo motor and bevel gear transmission, drives the rotating tube, rotating sleeve, scraper, and blades to work in tandem, bidirectionally agitating the material and improving heating uniformity. An arc-shaped electric heating tube, in conjunction with a dehumidification hole and a blower, accelerates moisture discharge, ensuring drying quality and greatly improving drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a ceramsite sand drying device. Background Technology

[0002] In recent years, with the rapid development of the world's petroleum industry, the difficulty of oil and natural gas extraction is gradually increasing, the depth of oil and natural gas wells is getting deeper, and low-permeability deposits are becoming more and more common. The demand for high-strength proppant products is also increasing both domestically and internationally. Ceramsite sand has become the first choice for proppant due to its excellent characteristics such as low density, high strength, and high porosity. Ceramsite sand is mainly made from clay, slate, shale, coal gangue, and industrial solid waste through ceramic sintering. The current production of ceramsite sand involves crushing the raw materials and forming them into spherical structures using a pelletizing machine. Direct calcination will cause cracking and affect the quality of ceramsite sand. Therefore, it is necessary to dry and preheat the semi-finished ceramsite sand first.

[0003] For example, a ceramsite drying device disclosed in Chinese patent literature (publication number: CN222544283U) achieves uniform temperature inside the drying cylinder by using a combination of evenly arranged electric heating elements and stirring blades, and the stirring ensures that the ceramsite is heated evenly during drying, thus avoiding uneven drying that could affect the quality and efficiency of the ceramsite.

[0004] However, relying on the rotating agitator blades at the discharge port to scrape and push the material has problems. The rotation rhythm of the blades is difficult to match with the material accumulation state, resulting in inconsistent discharge flow and poor stability. Furthermore, the unidirectional rotation of the agitator blades has poor mixing efficiency, and the interaction force between the blades and the material is singular. For materials that are stuck together, it is difficult to effectively break them up. As a result, the ceramsite sand inside is not fully heated and dried before being pushed to the discharge port, thus reducing the drying quality. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the poor drying quality of ceramsite sand by current drying equipment and the difficulty in discharging the material.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A ceramsite drying device includes a base, and a tilting discharge mechanism is provided above the base;

[0008] The tilting discharge mechanism includes a support block, the lower end of which is fixedly connected to the upper end of the base. The upper end of the support block is hinged to a first support via a pin, and the upper end of the first support is fixedly connected to a drying cylinder. The upper end of the base is fixedly connected to a second support, and the inner wall of the second support is hinged to a hydraulic cylinder via a pin. One end of the piston rod of the hydraulic cylinder is hinged to a third support via a pin, and the upper end of the third support is fixedly connected to the outside of the drying cylinder.

[0009] The drying cylinder is equipped with a material turning mechanism inside.

[0010] Preferably, the drying cylinder has exhaust holes arranged in a linear array on its exterior, an installation cavity is provided inside the drying cylinder, and arc-shaped electric heating tubes arranged in a linear array are fixedly installed inside the installation cavity. A feed pipe and a discharge pipe are fixedly connected to both sides of the drying cylinder, respectively.

[0011] Preferably, the turning mechanism includes a rotating tube, the outside of which is rotatably connected to the inner wall of one side of the drying cylinder via a bearing, and one end of the rotating tube extends through to one side of the drying cylinder and is fixedly sleeved with a first bevel gear.

[0012] Preferably, a symmetrically distributed rotating block is fixedly connected to the other end of the rotating tube, and an arc-shaped scraper is fixedly connected to one side of the rotating block. The outer side of the arc-shaped scraper is in rotatable contact with the inner wall of the drying cylinder.

[0013] Preferably, the inner wall of the rotating tube is rotatably connected to a rotating sleeve via a bearing, and a second bevel gear is fixedly sleeved on one end of the rotating sleeve. The rotating sleeve has air outlet holes arranged in a linear array on its outer side.

[0014] Preferably, the rotating sleeve is fixedly connected to a stirring blade arranged in a ring array, a mounting plate is fixedly connected to one side of the drying cylinder, a servo motor is fixedly mounted on the upper end of the mounting plate, and the output shaft of the servo motor is fixedly mounted to a rotating shaft via a coupling.

[0015] Preferably, a third bevel gear is fixedly sleeved on one end of the rotating shaft, and the tooth surface of the third bevel gear meshes with the tooth surfaces of the first bevel gear and the second bevel gear respectively. A blower is fixedly installed on the upper end of the mounting plate, and a guide pipe is fixedly connected to one side of the blower. One end of the guide pipe is rotatably connected to the inner wall of one end of the rotating sleeve through a sealed bearing.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the hydraulic cylinder drives the drying cylinder to rotate around the support block through the tilting discharge mechanism, which, together with the discharge pipe, achieves fast and stable discharge, solving the instability of traditional scraping discharge. The tilting mechanism, through servo motor and bevel gear transmission, drives the rotating tube, rotating sleeve, scraper, and blades to work together to stir the material in both directions, improving the uniformity of heating. The arc-shaped electric heating tube, together with the dehumidification hole and blower, accelerates the discharge of moisture, ensures the drying quality, and greatly improves the drying efficiency. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a ceramic aggregate drying device provided by this utility model;

[0019] Figure 2 A three-dimensional view of the drying cylinder structure of a ceramic aggregate drying device provided by this utility model;

[0020] Figure 3 A three-dimensional view of the blower structure of a ceramsite drying device provided by this utility model;

[0021] Figure 4 A three-dimensional view of the rotating tube structure of a ceramic aggregate drying device provided by this utility model.

[0022] Figure 5 A partial perspective view of the rotating sleeve structure of a ceramic aggregate drying device provided by this utility model.

[0023] Legend: 1. Base; 2. Support block; 21. First support; 22. Drying cylinder; 23. Second support; 24. Hydraulic cylinder; 25. Third support; 26. Exhaust hole; 27. Mounting cavity; 28. Arc-shaped electric heating tube; 29. ​​Feed pipe; 210. Discharge pipe; 3. Rotating pipe; 31. First bevel gear; 32. Rotating block; 33. Arc-shaped scraper; 34. Rotating sleeve; 35. Second bevel gear; 36. Air outlet; 37. Stirring blade; 38. Mounting plate; 39. Servo motor; 310. Rotating shaft; 311. Third bevel gear; 312. Blower; 313. Air guide pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a ceramsite sand drying device, including a base 1, which, through the cooperation of the flipping discharge mechanism and the turning mechanism set above, achieves efficient and uniform drying of ceramsite sand, adapting to the production needs of high-strength proppant.

[0030] The support block 2 is provided at the upper end of the base 1. The upper end of the support block 2 is hinged to the first support 21 by a pin. The upper end of the first support 21 is fixedly connected to the drying cylinder 22. The inner wall of the second support 23, which is fixedly connected to the upper end of the base 1, is hinged to the hydraulic cylinder 24 by a pin. One end of the piston rod of the hydraulic cylinder 24 is hinged to the third support 25 by a pin. The upper end of the third support 25 is fixedly connected to the outside of the drying cylinder 22.

[0031] This hinged connection provides a stable and flexible support structure for the rotation of the drying cylinder 22. Driven by the hydraulic cylinder 24, the drying cylinder 22 can rotate smoothly around the hinge point between the support block 2 and the first support 21, thereby changing the orientation of the discharge pipe 210 and using gravity to quickly discharge the ceramsite sand. Compared with the traditional discharge method that relies on paddle scraping, this avoids problems such as "material jamming" and "intermittent discharge" that may occur when paddle scraping, greatly improving the stability and efficiency of discharge and ensuring the continuity of the production process.

[0032] The drying cylinder 22 is fixedly connected to the feed pipe 29 and the discharge pipe 210 on both sides, which facilitates the feeding and discharging of the ceramsite sand. The exhaust holes 26 arranged in a linear array on the outside provide a channel for the water vapor generated during the drying process, which helps to maintain the dry environment inside the drying cylinder 22.

[0033] The internal installation cavity 27 and the linearly arrayed arc-shaped electric heating tubes 28 fixedly installed in the installation cavity 27 allow the arc-shaped electric heating tubes 28 to fit more closely to the inner wall of the drying cylinder 22, thereby making the heat distribution inside the drying cylinder 22 more uniform and providing a stable heat source guarantee for the uniform drying of ceramsite sand.

[0034] The rotating tube 3 installed inside the drying cylinder 22 is rotatably connected to the inner wall of one side of the drying cylinder 22 through a bearing. One end extends through to one side of the drying cylinder 22 and is fixedly sleeved with the first bevel gear 31. The other end is externally fixedly connected to symmetrically distributed rotating blocks 32. An arc-shaped scraper 33 is fixedly connected to one side of the rotating block 32. The outer side of the arc-shaped scraper 33 is in rotatable contact with the inner wall of the drying cylinder 22.

[0035] When the rotating tube 3 rotates, it can drive the rotating block 32 and the arc-shaped scraper 33 to rotate synchronously. During the rotation, the arc-shaped scraper 33 can scrape the ceramsite sand on the inner wall of the drying cylinder 22. On the one hand, it prevents the ceramsite sand from sticking to the cylinder wall during the drying process. On the other hand, it promotes the tumbling of the ceramsite sand in the circumferential direction, so that the ceramsite sand can contact the heat of the inner wall of the drying cylinder 22 more evenly and improve the uniformity of heating.

[0036] The inner wall of the rotating tube 3 is rotatably connected to the rotating sleeve 34 via a bearing. One end of the rotating sleeve 34 is fixedly sleeved with a second bevel gear 35. The outside of the sleeve is provided with air outlet holes 36 arranged in a linear array and is fixedly connected with stirring blades 37 arranged in a ring array.

[0037] The rotating sleeve 34 can rotate independently relative to the rotating tube 3. Under the action of the bevel gear transmission driven by the servo motor 39, it rotates in the opposite direction to the rotating tube 3. The stirring blade 37, driven by the rotating sleeve 34, stirs the ceramsite sand in the axial direction. Combined with the circumferential turning achieved by the arc scraper 33, it forms a bidirectional turning mode of "circumferential + axial". This can effectively eliminate the "dead corner" of the ceramsite sand in the drying cylinder 22, allowing the ceramsite sand to come into contact with the heat source in all directions and at multiple levels. It avoids the situation where the local ceramsite sand is not thoroughly dried due to insufficient turning, which greatly improves the uniformity of heating of the ceramsite sand and ensures the drying quality.

[0038] The mounting plate 38 fixedly connected to one side of the drying cylinder 22 provides a mounting base for components such as the servo motor 39 and the blower 312. The servo motor 39 drives the rotating shaft 310 to rotate through the output shaft. The third bevel gear 311 fixedly sleeved on the rotating shaft 310 meshes with the tooth surfaces of the first bevel gear 31 and the second bevel gear 35 respectively, realizing the transmission of power and the conversion of the rotation direction, thereby driving the rotating tube 3 and the rotating sleeve 34 to rotate in opposite directions.

[0039] The airflow generated by the blower 312 is delivered to the rotating sleeve 34 through the air duct 313 and then blown out from the air outlet 36. This can accelerate the airflow inside the drying cylinder 22 and promote the discharge of water vapor from the exhaust hole 26, further ensuring drying efficiency and drying quality.

[0040] The working process of this utility model:

[0041] Step 1: The semi-finished ceramsite sand is fed into the drying cylinder 22 through the feed pipe 29. The arc-shaped electric heating tube 28 is activated to preheat the inside of the drying cylinder 22 and create a suitable drying temperature environment. At the same time, the blower 312 is activated and the airflow enters the rotating sleeve 34 through the air guide pipe 313 and is blown out from the air outlet 36 to prepare for the discharge of moisture. The servo motor 39 is activated and the output shaft drives the rotating shaft 310 to rotate. The third bevel gear 311 on the rotating shaft 310 rotates synchronously. The third bevel gear 311 meshes with the first bevel gear 31 and the second bevel gear 35, so that the rotating pipe 3 and the rotating sleeve 34 rotate in opposite directions.

[0042] Step 2: When the rotating tube 3 rotates, it drives the rotating block 32 and the arc-shaped scraper 33 to rotate. The scraper scrapes the material on the inner wall of the drying cylinder 22 to prevent sticking and promote circumferential turning. When the rotating sleeve 34 rotates, it drives the stirring blade 37 to rotate. The stirring blade 37 stirs the material axially and works with the arc-shaped scraper 33 to achieve bidirectional turning of the material, so that the ceramsite sand is heated evenly and avoids insufficient drying in some areas. During drying, water vapor is discharged through the vent hole 26 and the blower 312 continuously blows air to accelerate the discharge of moisture and ensure drying efficiency and quality.

[0043] Step 3: After drying is completed, start hydraulic cylinder 24. The piston rod extends and pushes the third support 25, causing the drying cylinder 22 to rotate around the first support 21 and the support block 2. Adjust the angle so that the discharge pipe 210 is tilted downward. Under the action of gravity, the ceramsite sand is quickly discharged through the discharge pipe 210. After discharge, the piston rod of hydraulic cylinder 24 retracts and the drying cylinder 22 returns to its original position.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for drying ceramsite sand, comprising a base (1), characterized in that: A tilting discharge mechanism is provided above the base (1); The flipping discharge mechanism includes a support block (2), the lower end of which is fixedly connected to the upper end of the base (1). The upper end of the support block (2) is hinged to a first support (21) by a pin. The upper end of the first support (21) is fixedly connected to a drying cylinder (22). The upper end of the base (1) is fixedly connected to a second support (23). The inner wall of the second support (23) is hinged to a hydraulic cylinder (24) by a pin. One end of the piston rod of the hydraulic cylinder (24) is hinged to a third support (25) by a pin. The upper end of the third support (25) is fixedly connected to the outside of the drying cylinder (22). The drying cylinder (22) is equipped with a material turning mechanism inside.

2. A device for drying ceramsite sand according to claim 1, characterized in that: The drying cylinder (22) has exhaust holes (26) arranged in a linear array on the outside and an installation cavity (27) arranged inside. The installation cavity (27) has arc-shaped electric heating tubes (28) arranged in a linear array fixedly installed inside. The drying cylinder (22) has a feed pipe (29) and a discharge pipe (210) fixedly connected to both sides.

3. A device for drying ceramsite sand according to claim 1, characterized in that: The material turning mechanism includes a rotating tube (3), the outside of which is rotatably connected to the inner wall of one side of the drying cylinder (22) via a bearing, and one end of the rotating tube (3) extends through to one side of the drying cylinder (22) and is fixedly sleeved with a first bevel gear (31).

4. A device for drying ceramsite sand according to claim 3, characterized in that: The other end of the rotating tube (3) is fixedly connected to a symmetrically distributed rotating block (32), and an arc-shaped scraper (33) is fixedly connected to one side of the rotating block (32). The outer side of the arc-shaped scraper (33) is in rotational contact with the inner wall of the drying cylinder (22).

5. A device for drying ceramsite sand according to claim 3, characterized in that: The inner wall of the rotating tube (3) is rotatably connected to a rotating sleeve (34) via a bearing. A second bevel gear (35) is fixedly sleeved on one end of the rotating sleeve (34). The rotating sleeve (34) has air outlet holes (36) arranged in a linear array on its outer side.

6. The ceramsite drying device according to claim 5, characterized in that: The rotating sleeve (34) is fixedly connected to the outside of a stirring blade (37) arranged in a ring array. A mounting plate (38) is fixedly connected to one side of the drying cylinder (22). A servo motor (39) is fixedly mounted on the upper end of the mounting plate (38). The output shaft of the servo motor (39) is fixedly mounted with a rotating shaft (310) through a coupling.

7. A device for drying ceramsite sand according to claim 6, characterized in that: A third bevel gear (311) is fixedly sleeved on one end of the rotating shaft (310). The tooth surface of the third bevel gear (311) meshes with the tooth surfaces of the first bevel gear (31) and the second bevel gear (35) respectively. A blower (312) is fixedly installed on the upper end of the mounting plate (38). A guide pipe (313) is fixedly connected to one side of the blower (312). One end of the guide pipe (313) is rotatably connected to the inner wall of one end of the rotating sleeve (34) through a sealed bearing.

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