A drying device for producing anhydrous stemming

Abstract

The utility model relates to a kind of drying device for anhydrous stemming production in the field of anhydrous stemming production, comprising: machine case;Drying roller, the drying roller is inclinedly penetrated the machine case, and is rotatably connected in the machine case by rolling structure;Heating unit, set in the drying roller periphery, and located in the machine case interior;Drive equipment;Air supply component, including air pipe and exhaust fan, the exhaust fan is configured to extract the gas in the machine case interior, and gas is sent into the drying roller interior by the air pipe.This utility model actively extracts and directly sprays the hot air in the cavity between the inner wall of machine case and the outer wall of drying roller on the material in the roller by setting air supply component, realizes the efficient recovery and use of the dispersed waste heat in the machine case, not only realizes the double heating mode of combination of convection and conduction, but also can greatly speed up the moisture evaporation speed, and effectively reduces the overall energy consumption of device, realizes energy-saving production.

Description

Technical Field

[0001] This utility model relates to the field of anhydrous gun clay production technology, and in particular to a drying device for anhydrous gun clay production. Background Technology

[0002] Anhydrous taphole clay is a key material used to plug the taphole in modern blast furnace tapping operations, and its performance directly affects the safety and efficiency of blast furnace operation. The production process of anhydrous taphole clay typically includes multiple stages such as mixing, molding, and drying. The drying stage aims to remove residual moisture from the molded material to prevent it from cracking due to rapid evaporation of moisture under high-temperature operating conditions, thus ensuring the density and service life of the taphole clay.

[0003] Currently, the drying of anhydrous clay is mostly achieved using equipment such as static drying in drying chambers or belt dryers. Static drying in drying chambers involves placing the molded clay product inside the chamber and drying it by holding it in place for an extended period of time with hot air. This method has disadvantages such as a long drying cycle, large footprint, low heat energy utilization, and poor drying uniformity, which can easily lead to inconsistent moisture content inside and outside the product, affecting the final quality.

[0004] While traditional drum dryers improve drying uniformity to some extent through material tumbling, they still face several technical bottlenecks. First, in traditional drum dryers, hot air typically enters only from one end of the drum, exchanges heat and moisture with the material, and exits from the other end. This results in the hot air temperature decreasing and humidity increasing along the drum's path, causing materials at different locations to be at different drying stages, making it difficult to ensure uniform drying across the entire batch. Second, traditional drive systems often use gear transmissions, with the drum rotating via a large gear ring meshing with the drive gear. This structure is prone to wear and noise under long-term heavy loads and high temperatures, and requires a complex lubrication system, leading to high maintenance costs. Furthermore, a significant portion of the heat generated by external heating elements is lost to the surrounding environment, resulting in low energy efficiency and energy waste.

[0005] To address this, we designed a drying device for the production of waterless gun clay. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model discloses a drying device for the production of waterless gun clay.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A drying apparatus for producing anhydrous tapping clay includes:

[0009] Chassis;

[0010] A drying drum, which extends vertically through the housing and is rotatably connected to the housing via a rolling structure;

[0011] A heating unit is disposed around the drying drum and located inside the casing;

[0012] A driving device for driving the drying drum to rotate;

[0013] An air supply assembly includes an air duct and an exhaust fan, wherein the exhaust fan is configured to draw gas from inside the casing and deliver the gas into the drying drum through the air duct;

[0014] The rolling structure is provided in at least two sets along the axial direction of the drying drum.

[0015] Furthermore, the duct body is provided with multiple spray holes evenly distributed in the position of the inner cavity of the drying drum.

[0016] Furthermore, the machine casing is provided with a feed hopper at the top of one end corresponding to the upper end of the drying drum, and a discharge hopper at the bottom of one end corresponding to the lower end of the drying drum.

[0017] Furthermore, the chassis is provided with partitions on both sides of the rolling structure.

[0018] Furthermore, the rolling structure includes:

[0019] A circular track is coaxially fitted onto the body of the drying drum.

[0020] A rolling roller assembly includes a roller frame, which is installed inside the machine housing. The roller frame is provided with radial support rollers and axial support rollers. The radial support rollers roll on the outer ring surface of the annular track, and the axial support rollers roll on the end face of the annular track corresponding to the lower end of the drying drum.

[0021] The rolling wheel assembly has at least two symmetrically arranged sets, located on both sides of the bottom of the annular track;

[0022] The radial support roller is driven by the drive device.

[0023] Furthermore, the rolling wheel assembly is evenly arranged in three sets along the circumferential direction.

[0024] Furthermore, the drying drum has an inclination angle of 5-10 degrees.

[0025] Furthermore, the inner wall of the drying drum is provided with spiral blades, and the spiral direction of the spiral blades is opposite to the rotation direction of the drying drum.

[0026] Furthermore, the width of the spiral blades is 1 / 10 to 1 / 5 of the inner diameter of the drying drum.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] 1. By setting up an air supply component, hot air in the cavity between the inner wall of the machine casing and the outer wall of the drying drum is actively extracted and directly sprayed onto the material inside the drum. This achieves efficient recovery and utilization of the dispersed waste heat inside the machine casing. It not only realizes a dual heating mode combining convection and conduction, but also significantly accelerates the moisture evaporation rate and effectively reduces the overall energy consumption of the device, achieving energy-saving production.

[0029] 2. The spiral blades installed on the inner wall of the drying drum continuously lift and scatter the material as the drum rotates, forming a uniform material curtain that fully exposes the material to hot air. Combined with the spray holes evenly distributed along the air duct, the hot air can be evenly delivered to all parts of the material inside the drum. This synergistic effect of mechanical tumbling and airflow distribution ensures the consistency of material heating and dehydration, effectively avoiding local over-drying or incomplete drying, thus ensuring the quality of the material.

[0030] 3. The traditional gear ring meshing transmission is replaced by a rolling support structure consisting of a ring track and rolling wheel set, which eliminates the risk of gear wear and tooth breakage. The radial support roller and axial support roller cooperate to provide both radial support and axial limit, ensuring the stability and concentricity of the drying drum when it is tilted and rotated. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the drying drum and rolling structure in this utility model;

[0033] Figure 3 for Figure 2 A magnified view of part I in the image.

[0034] In the diagram: 1. Chassis; 11. Feed hopper; 12. Discharge hopper; 13. Baffle plate; 2. Drying drum; 21. Spiral blades; 3. Heating unit; 4. Drive equipment; 5. Air supply assembly; 51. Air duct; 52. Exhaust fan; 53. Spray nozzle; 6. Circular track; 7. Rolling wheel assembly; 71. Wheel frame; 72. Radial support roller; 73. Axial support roller. Detailed Implementation

[0035] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0036] Example 1, in conjunction with Appendix Figure 1-3 A drying device for producing waterless gun clay includes a casing 1, a drying drum 2, a heating unit 3, a drive device 4, and an air supply assembly 5.

[0037] The casing 1 constitutes the main external support structure of the device. The drying drum 2 extends obliquely through the internal cavity of the casing 1, with its axis forming an acute angle with the horizontal plane. The oblique angle is preferably 5-10 degrees. In this embodiment, the oblique angle is selected as 8 degrees.

[0038] The drying drum 2 is used to carry and convey the material to be dried. A spiral blade 21 is fixedly installed on the inner wall of the drying drum 2, with the spiral direction of the blades 21 opposite to the rotation direction of the drying drum 2. When the drum rotates, the material is not only lifted and scattered by the spiral blades 21 to achieve thorough mixing, but also slowly pushed towards the discharge end. Furthermore, the width of the spiral blades 21 is 1 / 10 to 1 / 5 of the inner diameter of the drying drum 2. In this embodiment, the width of the spiral blades 21 is 1 / 8 of the inner diameter of the drying drum 2; this ratio effectively balances the lifting effect of the material with the axial conveying speed.

[0039] The drying drum 2 is rotatably connected to the housing 1 via a rolling structure. Two sets of rolling structures are spaced apart along the axial direction of the drying drum 2 to ensure the stability of the drum rotation.

[0040] In this embodiment, the rolling structure includes an annular track 6 and two sets of rolling wheels 7. The annular track 6 is coaxially and fixedly sleeved on the outside of the drying drum 2.

[0041] Two sets of rolling rollers 7 are symmetrically arranged on both sides of the bottom of the annular track 6, that is, the two sets of rolling rollers 7 are mirror images of each other. Each set includes a wheel frame 71, which is fixedly installed on the internal base frame of the housing 1. Radial support rollers 72 and axial support rollers 73 are arranged side by side on the wheel frame 71.

[0042] Radial rollers 72 roll on the outer ring surface of the annular track 6 to support most of the weight of the drying drum 2 and drive its rotation. Axial rollers 73 roll on the end face of the annular track 6 near the lower end of the drying drum 2 to limit the axial movement of the drying drum 2 and ensure the stability of its running trajectory.

[0043] The drive device 4, such as a motor and a reducer, is fixedly mounted on the housing 1. The output end of the drive device 4 is directly connected to the axle of at least one of the radial rollers 72, or driven by a transmission chain or belt, thereby driving the radial rollers 72 to rotate, and using friction to drive the annular track 6 and the entire drying drum 2 to rotate together.

[0044] The heating unit 3 is preferably an electric heater arranged around the periphery of the drying drum 2 and fixed inside the housing 1. The heating unit 3 is used to heat the drum wall of the drying drum 2, and the heat is conducted to the material inside the drum wall.

[0045] The air supply assembly 5 includes an air duct 51 and an exhaust fan 52. One end of the air duct 51 extends into the inner cavity of the drying drum 2 and extends along its axial direction. The portion of the air duct 51 located in the inner cavity of the drying drum 2 is evenly provided with multiple spray holes 53.

[0046] Preferably, the portion of the air duct 51 extending into the inner cavity of the drying drum 2 is coaxially distributed with the drying drum 2.

[0047] The air inlet of the exhaust fan 52 is connected to the internal cavity of the housing 1 through a pipe. During operation, the exhaust fan 52 draws in the hot air that exists in the space between the inner wall of the housing 1 and the outer wall of the drying drum 2 after being heated by the heating unit 3, and forces it into the air duct 51. Finally, it is directly and evenly sprayed onto the material tumbling inside the drying drum 2 through the spray hole 53 to achieve efficient convection drying.

[0048] To further optimize the structure, the top of one end of the casing 1 corresponding to the upper end of the drying drum 2 is provided with a feeding hopper 11 for feeding materials; the bottom of one end of the casing 1 corresponding to the lower end of the drying drum 2 is provided with a discharging hopper 12 for collecting the dried finished product.

[0049] Furthermore, baffles 13 are provided on the inner walls of the casing 1 on both sides of the rolling structure. These baffles 13 can effectively prevent materials from entering the moving pairs of the rolling structure and ensure its long-term stable operation.

[0050] Furthermore, the partition 13 is fitted with the drying drum 2 with a clearance, which ensures that external gas enters the space between the inner wall of the casing 1 and the outer wall of the drying drum 2.

[0051] The working principle is as follows:

[0052] Start the drive unit 4 and heating unit 3. The drive unit 4 drives the radial support roller 72 to rotate, which in turn drives the drying drum 2 to rotate slowly through the annular track 6. At this time, the wet material fed from the feed hopper 11 enters the drying drum 2. Under the combined action of the drum rotation and the built-in spiral blades 21, the material is continuously scooped up and scattered, and comes into full contact with the high-temperature drum wall and the hot air from the spray holes 53, and the moisture is rapidly evaporated. At the same time, since the spiral direction is opposite to the rotation direction, the material is continuously pushed towards the lower discharge hopper 12 during the tumbling process, and the finally dried material is discharged through the discharge hopper 12.

[0053] Example 2, in conjunction with Appendix Figure 2 A drying device for producing anhydrous clay differs from Embodiment 1 in that, in order to provide more stable and balanced support, three sets of rolling rollers 7 are evenly arranged along the circumference. These three sets of rolling rollers 7 are evenly distributed along the circumference of the annular track 6, jointly supporting the weight of the drying drum 2, making the force more uniform, the operation more stable, and reducing the risk of vibration and deformation.

[0054] It should be noted that the three sets of rolling wheels 7 are respectively arranged above the circular track 6 and on both sides of the bottom, with the two sets of rolling wheels 7 located on both sides of the bottom of the circular track 6 being mirrored.

[0055] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims within this utility model.

Claims

1. A drying apparatus for producing anhydrous gun clay, characterized in that, include: Chassis (1); Drying roller (2) is inclined vertically through the housing (1) and rotatably connected to the housing (1) by a rolling structure. The heating unit (3) is disposed around the drying drum (2) and located inside the housing (1); Drive device (4) is used to drive the drying drum (2) to rotate; The air supply assembly (5) includes an air duct (51) and an exhaust fan (52), wherein the exhaust fan (52) is configured to extract gas from the inside of the housing (1) and send the gas into the inside of the drying drum (2) through the air duct (51); Among them, at least two sets of the rolling structure are provided along the axial direction of the drying drum (2).

2. The drying apparatus for producing anhydrous gun clay according to claim 1, characterized in that: The air duct (51) has multiple spray holes (53) evenly distributed in the position of the duct body located in the inner cavity of the drying drum (2).

3. The drying apparatus for producing anhydrous gun clay according to claim 1, characterized in that: The machine casing (1) has a feed hopper (11) at the top of one end corresponding to the upper end of the drying drum (2), and a discharge hopper (12) at the bottom of one end corresponding to the lower end of the drying drum (2).

4. The drying apparatus for producing anhydrous gun clay according to claim 1, characterized in that: The chassis (1) is provided with partitions (13) on both sides of the rolling structure.

5. A drying apparatus for producing anhydrous gun clay according to claim 1, characterized in that: The rolling structure includes: A circular track (6) is coaxially fitted onto the body of the drying drum (2); The rolling wheel assembly (7) includes a wheel frame (71), which is installed inside the housing (1). The wheel frame (71) is provided with radial support rollers (72) and axial support rollers (73). The radial support rollers (72) roll on the outer ring surface of the annular track (6), and the axial support rollers (73) roll on the end face of the annular track (6) corresponding to the lower end of the drying drum (2). The rolling wheel set (7) has at least two sets arranged symmetrically, and is located on both sides of the bottom of the annular track (6); The radial support roller (72) is driven to connect with the drive device (4).

6. The drying apparatus for producing anhydrous gun clay according to claim 5, characterized in that: The rolling wheel group (7) is evenly arranged in three groups along the circumference.

7. The drying apparatus for producing anhydrous gun clay according to claim 1, characterized in that: The drying drum (2) has an inclination angle of 5-10 degrees.

8. A drying apparatus for producing anhydrous gun clay according to claim 1 or 7, characterized in that: The inner wall of the drying drum (2) is provided with spiral blades (21), and the spiral direction of the spiral blades (21) is opposite to the rotation direction of the drying drum (2).

9. A drying apparatus for producing anhydrous gun clay according to claim 8, characterized in that: The width of the spiral blade (21) is 1 / 10 to 1 / 5 of the inner diameter of the drying drum (2).

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