Dryer for fly ash production process

Abstract

The utility model discloses a dryer for a coal ash production process, which belongs to the technical field of mining machinery and comprises a hot-blast stove, an air port of the hot-blast stove is connected with a rotary first roller, the top of one end, close to the hot-blast stove, of the first roller is provided with a feed port, and the other end of the first roller is fixedly connected with a discharge port. The end, close to the feeding port, of the first roller is higher than the end, close to the discharging port, of the first roller, and the inclination angle of the first roller is set to be 3 degrees, and is characterized in that a plurality of spiral baffles are fixedly installed at the end, close to the feeding port, of the interior of the first roller, a rolling assembly is fixedly installed on one side of each spiral baffle, and a first circular track and a second circular track are fixed to the two sides of the rolling assembly; the first circular track and the second circular track are fixed to the inner wall of the first roller through the fixing blocks, the rolling wheels are slidably installed between the first circular track and the second circular track, and therefore the problem that the drying effect is poor due to uneven feeding and wet material caking is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery, in particular to a dryer used in a fly ash production process. Background Art

[0002] Fly ash can be used as an admixture for cement, mortar, and concrete, and can become a component of cement and concrete. Fly ash can be used as a raw material to replace clay to produce cement clinker, manufacture sintered bricks, autoclaved aerated concrete, foamed concrete, hollow brickwork, sintered or non-sintered ceramsite, and pave roads;

[0003] The patent document with application number 2020206567435 discloses a fly ash dryer. The fly ash dryer of the present invention includes heating equipment, feeding equipment, supporting wheel equipment, drying kiln body, transmission equipment, supporting wheel equipment, discharging equipment, cyclone separation equipment and induced draft fan. The feeding equipment is connected to a feeding box, and a fixed rolling disc is fixedly installed in the feeding box. A servo motor is fixedly connected to the top of the feeding box, and a rolling shaft is fixedly installed on the output shaft of the servo motor. The rolling shaft is rotatably connected to the feeding box, and a conical rolling disc is fixedly installed on the bottom of the rolling shaft, and the conical rolling disc is adapted to the fixed rolling disc. It is an improvement of a fly ash dryer in the patent document with application number: 2015107044715. The utility model can grind and screen coal ash, and can improve the uniformity of coal ash. The improvement of this application adds a rolling disc to the outside of the dryer, and the original structure has not been well optimized. Utility Model Content

[0004] The utility model aims to provide a dryer for fly ash production process, which solves the problem of low drying efficiency caused by uneven feeding, wet material agglomeration, etc.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A dryer for fly ash production process, including a hot blast furnace, the air outlet of the hot blast furnace is connected to a rotating first roller, a feed port is opened at the top of the first roller near one end of the hot blast furnace, and a discharge port is fixedly connected to the other end of the first roller, the end of the first roller near the feed port is higher than the end of the discharge port, and the inclination angle is set to 3 degrees. It is characterized in that a plurality of spiral baffles are fixedly installed near one end of the feed port inside the first roller, a rolling assembly is fixedly installed on one side of the spiral baffle, a first ring rail and a second ring rail are fixed on both sides of the rolling assembly, the first ring rail and the second ring rail are fixed to the inner wall of the first roller by a fixing block, a rolling wheel is slidably installed between the first ring rail and the second ring rail, and rotating shafts are fixed at both ends of the rolling wheel, and both ends of the rotating shaft slide in the first ring rail and the second ring rail.

[0007] As a further solution of the utility model: a second roller is installed between the first roller and the discharge port through a flange, a spiral baffle is fixedly installed inside the second roller, and the other end of the second roller is connected to the discharge port.

[0008] As a further solution of the utility model: a filter screen is fixedly installed on one end of the first roller close to the second roller.

[0009] As a further solution of the utility model: the inclination of the front end and the rear end of the second roller is greater than the inclination of the front end and the rear end of the first roller, and the inclination angle is set to 6 degrees.

[0010] As a further solution of the utility model: a cyclone separator is also connected to one end of the discharge port.

[0011] As a further solution of the utility model: a base is arranged at the bottom of the first roller, a motor is fixedly mounted on the top of the base, a driving gear is fixed on the motor, a gear is fixed on the middle part of the outer side of the first roller, and the gear is coupled to the driving gear on the motor.

[0012] As a further solution of the utility model: a roller support is fixedly installed on the top of the base, a roller is rotatably installed on the roller support, and two rotating rings are fixed at the front and rear ends of the first roller, and the rotating rings are coupled with the rollers on the roller support.

[0013] Beneficial effects of the utility model:

[0014] (1) The feed is stirred by the spiral baffle in the first drum and the agglomerated fly ash wet material is crushed by the rolling assembly to solve the problem of uneven feed and increase the drying efficiency;

[0015] (2) Two drying drums are provided, and the drying efficiency is further increased and the power consumption is reduced by adjusting the two drying drums. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the dryer in the fly ash production process of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the internal spiral baffle of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the rolling assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure inside the first roller of the utility model;

[0021] In the figure: 1. hot air furnace; 2. feed inlet; 3. first roller; 31. flange; 4. second roller; 5. rotating ring; 51. roller support; 6. gear; 61. motor; 7. discharge port; 8. cyclone separator; 9. rolling assembly; 91. rolling wheel; 92. first ring rail; 93. second ring rail; 94. fixed block; 10. spiral baffle; 95. filter screen; 11. base. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] Embodiment 1:

[0024] See also Figure 1 As shown, the utility model is a dryer for fly ash production process, including a hot blast furnace 1, the tuyere of the hot blast furnace 1 is connected to a rotating first roller 3, a feed port 2 is provided at the top of the first roller 3 near one end of the hot blast furnace 1, a discharge port 7 is fixedly connected to the other end of the first roller 3, and a cyclone separator 8 is also connected to one end of the discharge port 7. It can be used to reduce dust generated by the dryer. The end of the first roller 3 near the feed port 2 is higher than the end of the discharge port 7, and the inclination angle is set to 3 degrees.

[0025] A base 11 is provided at the bottom of the first roller 3, a motor 61 is fixedly mounted on the top of the base 11, a driving gear is fixed on the motor 61, a gear 6 is fixed on the middle part of the outer side of the first roller 3, and the gear 6 is coupled with the driving gear on the motor 61. A roller support 51 is also fixedly mounted on the top of the base 11, a roller is rotatably mounted on the roller support 51, and two rotating rings 5 ​​are also fixed at the front and rear ends of the first roller 3, and the rotating rings 5 ​​are coupled with the rollers on the roller support 51.

[0026] See also Figure 2-4As shown, a plurality of spiral baffles 10 are fixedly installed at one end near the feed port 2 inside the first roller 3, a rolling assembly 9 is fixedly installed on one side of the spiral baffle 10, a first ring rail 92 and a second ring rail 93 are fixed on both sides of the rolling assembly 9, the first ring rail 92 and the second ring rail 93 are fixed to the inner wall of the first roller 3 by a fixing block 94, a rolling wheel 91 is slidably installed between the first ring rail 92 and the second ring rail 93, a rotating shaft is fixed at both ends of the rolling wheel 91, and both ends of the rotating shaft slide in the first ring rail 92 and the second ring rail 93. When the agglomerated wet material passes through the spiral baffle 10 to the position of the rolling assembly 9, when the first roller 3 rotates, the rolling wheel 91 is always at the bottom of the first roller 3 under the action of inertia, and when the agglomerated wet material passes through the spiral baffle 10 to the position of the rolling assembly 9, the rolling wheel 91 can crush and squeeze the agglomerated wet material.

[0027] Embodiment 2:

[0028] On the basis of the above structure, a second roller 4 is also installed between the first roller 3 and the discharge port 7 through a flange 31, a base 11 is arranged at the bottom of the second roller 4, a motor 61 is fixedly installed on the top of the base 11, a driving gear is fixed on the motor 61, a gear 6 is fixed on the middle part of the outer side of the second roller 4, and the gear 6 is coupled with the driving gear on the motor 61. A roller support 51 is also fixedly installed on the top of the base 11, a roller is rotatably installed on the roller support 51, and a rotating ring 5 is also fixed at one end of the second roller 4, and the rotating ring 5 is coupled with the roller on the roller support 51. A spiral baffle 10 is fixedly installed inside the second roller 4, and the other end of the second roller 4 is connected to the discharge port 7. A filter screen 95 is fixedly installed at one end of the first roller 3 close to the second roller 4. The agglomerated wet material is intercepted and dried and rolled in the first roller 3. The inclination of the front and rear ends of the second roller 4 is greater than that of the front and rear ends of the first roller 3, and the inclination angle is set to 6 degrees. The fly ash raw material entering the second drying drum is dried to a better degree, and increasing the inclination angle increases the flow speed of the fly ash in the second drum 4 to increase efficiency.

[0029] The working principle of the utility model is as follows: the fly ash wet material enters the first roller 3 from the feed port 2, the hot air furnace 1 is connected to the first roller 3, and provides drying heat to the first roller 3. The spiral baffle 10 in the first roller 3 stirs the fly ash raw material, which can increase the efficiency of fly ash drying, and at the same time, the fly ash raw material can be transferred to the bottom of the first roller 3. The crushing assembly 9 arranged at the bottom of the first roller 3 can crush the agglomerated fly ash raw material, and then enter the second roller 4. The fly ash raw material entering the second roller 4 has a better degree of drying because it has been dried by the first roller 3. The inclination angle of the second roller 4 is set larger than the inclination angle of the first roller 3. The flow rate of the fly ash raw material is greater than the flow rate of the fly ash in the first roller 3. At the same time, the rotation speed of the second roller 4 can be adjusted, and the drying efficiency can be increased under the condition of ensuring the fly ash drying requirements.

[0030] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A dryer for fly ash production process, comprising a hot blast furnace (1), wherein the tuyere of the hot blast furnace (1) is connected to a rotating first roller (3), a feed port (2) is provided at the top of the first roller (3) near one end of the hot blast furnace (1), a discharge port (7) is fixedly connected to the other end of the first roller (3), an end of the first roller (3) near the feed port (2) is higher than an end of the discharge port (7), and an inclination angle is set to 3 degrees, characterized in that: A plurality of spiral baffles (10) are fixedly installed at one end of the first roller (3) near the feed port (2), a rolling assembly (9) is fixedly installed on one side of the spiral baffle (10), a first ring rail (92) and a second ring rail (93) are fixed on both sides of the rolling assembly (9), the first ring rail (92) and the second ring rail (93) are fixed to the inner wall of the first roller (3) by a fixing block (94), a rolling wheel (91) is slidably installed between the first ring rail (92) and the second ring rail (93), a rotating shaft is fixed at both ends of the rolling wheel (91), and both ends of the rotating shaft slide in the first ring rail (92) and the second ring rail (93).

2. A dryer for fly ash production process according to claim 1, characterized in that: A second roller (4) is installed between the first roller (3) and the discharge port (7) via a flange (31), a spiral baffle (10) is fixedly installed inside the second roller (4), and the other end of the second roller (4) is connected to the discharge port (7).

3. A dryer for fly ash production process according to claim 2, characterized in that: A filter screen (95) is fixedly mounted on one end of the first roller (3) close to the second roller (4).

4. A dryer for fly ash production process according to claim 3, characterized in that: The inclination of the front end and the rear end of the second roller (4) is greater than the inclination of the front end and the rear end of the first roller (3), and the inclination angle is set to 6 degrees.

5. A dryer for fly ash production process according to claim 4, characterized in that: A cyclone separator (8) is also connected to one end of the discharge port (7).

6. A dryer for fly ash production process according to claim 5, characterized in that: A base (11) is arranged at the bottom of the first roller (3), a motor (61) is fixedly mounted on the top of the base (11), a driving gear is fixed on the motor (61), a gear (6) is fixed at the middle part of the outer side of the first roller (3), and the gear (6) is coupled to the driving gear on the motor (61).

7. A dryer for fly ash production process according to claim 6, characterized in that: A roller support (51) is fixedly mounted on the top of the base (11), and a roller is rotatably mounted on the roller support (51). Two rotating rings (5) are fixed on the front and rear ends of the first roller (3), and the rotating rings (5) are coupled to the rollers on the roller support (51).

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