Mining dryer

Abstract

The utility model discloses a mining dryer in the related technical field of dryers, which comprises a drying cylinder and a drying outer cylinder, both ends of the drying cylinder are provided with support frames, the outer side of one of the support frames is provided with a feed port, the feed port is communicated with the drying cylinder through a feed pipe, and the feed pipe is communicated with the drying outer cylinder through a feed pipe. An outer heating box and an air blower are arranged below the feeding port, the air outlet end of the air blower extends into an outer protection box through a drying air supply pipe, the outer protection box is arranged on the outer side of the drying outer barrel in a sleeving mode, and an air inlet matching ring is arranged on the end face of the drying outer barrel in a matched mode. The dryer is provided with the drying cylinder and the drying outer cylinder, the drying material cavity and the drying hot air cavity are formed, mineral materials and the hot air cavity are separated, dust generated in the drying process is reduced, the inner heating box is arranged in the middle of the drying outer cylinder in the length direction, temperature increasing treatment is carried out on cooled hot air, and the drying efficiency is improved. The drying effect of the dryer is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of dryers, specifically, it relates to a mining dryer. Background Technology

[0002] Mining dryers, also known as rotary drum dryers, are widely used in building materials, metallurgy, chemical, and cement industries for drying materials such as slag, limestone, coal powder, and clay. A mining dryer mainly consists of a rotating body, lifting plates, a transmission device, a support device, and sealing rings. It has advantages such as reasonable structure, excellent manufacturing, high output, low energy consumption, and convenient operation. Application number CN202322077857.0 discloses a mining dryer that uses spiral blades at the feed end of the drying drum to transport the ore into the drum, preventing ore from accumulating at one end and affecting the drying effect. Then, guide blades gradually pull the ore to the other end of the drying drum for easy output. The device uses a blower and a heating box to supply hot air into the drying drum. The hot air directly contacts the mineral raw materials, generating significant dust. Simultaneously, during the drying process, due to heat exchange, the temperature of the hot air continuously decreases, resulting in poor drying effect near the discharge end of the drying drum, affecting the overall drying effect of the drum.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a mining dryer. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:

[0005] A mining dryer includes a drying cylinder and an outer drying cylinder. Support frames are provided at both ends of the drying cylinder. A feeding port is located on the outer side of one of the support frames, and the feeding port is connected to the drying cylinder via a guide pipe. An outer heating box and a blower are located below the feeding port. The air outlet of the blower extends into the outer protective box via a drying air supply pipe. The outer protective box is fitted over the outer drying cylinder. An air inlet fitting ring is fitted at the end face of the outer drying cylinder. The upper outer part of the air inlet fitting ring is fixedly installed inside the outer protective box by a fixing bracket. A drying material chamber is provided inside the drying cylinder. A drying hot air chamber is formed between the drying cylinder and the outer drying cylinder. The drying air supply pipe extends through the air inlet fitting ring into the drying hot air chamber. An annular air inlet pipe with an air outlet is provided inside the drying hot air chamber. An inner heating box is fixedly installed at the bottom center of the outer protective box. The inner heating box is used to heat the hot air in the middle and rear sections of the drying hot air chamber.

[0006] As a further embodiment of this utility model: a guide slope is provided at the connection position between the guide pipe and the drying cylinder, a support bearing is provided at the mating position between the support frame and the drying cylinder, and a bearing end cap is provided on the outside of the support bearing to protect the mating position of the bearing.

[0007] As a further embodiment of this utility model: a toothed ring is provided on the outer side of the drying outer cylinder near the feeding port, and a drive gear is meshed on the side of the toothed ring. The drive gear is mounted on the main shaft of the rotating motor, and the rotating motor is mounted on the bottom of the outer protective box. The rotating motor is used to provide power for the rotation of the drying outer cylinder.

[0008] As a further embodiment of this utility model: the drying outer cylinder is fixedly connected to the drying cylinder, and a stable support ring is provided at the end of the drying outer cylinder away from the toothed ring. A matching support seat is provided below the stable support ring, and a set of two matching support seats are provided to ensure the stability of the drying cylinder during rotation.

[0009] As a further improvement of this utility model: a spacer plate is provided between the toothed ring and the inner heating box inside the outer protective box, and between the stabilizing support ring and the inner heating box. A sealing gasket is provided at the mating position of the spacer plate and the drying outer cylinder. The sealing gasket is adapted to the size and specifications of the drying outer cylinder to reduce the high temperature impact of the inner heating box on other components.

[0010] As a further embodiment of this utility model: a discharge box is fixedly installed on the outside of the support frame at the end away from the feeding port, a main exhaust pipe is provided above the discharge box, and a discharge port is provided below the discharge box for discharging the dried material.

[0011] As a further embodiment of this utility model: a drying exhaust pipe is connected to the air inlet fitting ring near one end of the discharge box, the drying exhaust pipe is connected to the main exhaust pipe, an inspection door is provided on the outside of the outer protective box, a scraper is provided on the inner wall of the drying cylinder, and the main exhaust pipe is connected to an external dust removal device.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0013] The dryer of this utility model is equipped with a drying cylinder and a drying outer cylinder, forming a drying material chamber and a drying hot air chamber, separating the mineral material from the hot air chamber, reducing the dust generated during the drying process. An internal heating box is set at the middle of the length direction of the drying outer cylinder to heat up the cooled hot air and ensure the drying effect of the dryer.

[0014] This invention features an air inlet fitting ring at the end of the drying outer cylinder. The air inlet fitting ring is fixedly mounted on the inner wall of the outer protective box. The air inlet fitting ring and the drying outer cylinder are in a clearance fit, and the air inlet fitting ring will not rotate with the drying outer cylinder, ensuring the stability of the drying air supply.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is a front sectional view of the present invention;

[0020] Figure 4 This is a partial enlarged view of point A of this utility model.

[0021] In the diagram: 1. Outer protective box; 2. Feeding port; 3. Guide pipe; 4. Support frame; 5. External heating box; 6. Blower; 7. Discharge box; 8. Main exhaust pipe; 9. Inspection door; 10. Discharge port; 11. Guide slope; 12. Support bearing; 13. Bearing end cover; 14. Drying cylinder; 15. Drying air supply pipe; 16. Drying outer cylinder; 17. Drying material chamber; 18. Drying hot air chamber; 19. Rotating motor; 20. Drive gear; 21. Gear ring; 22. Internal heating box; 23. Partition plate; 24. Drying exhaust pipe; 25. Fixing frame; 26. Air inlet fitting ring; 27. Air inlet pipe; 28. Air outlet; 29. ​​Scraper; 30. Stabilizing support ring; 31. Fitting support seat.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] like Figures 1 to 4 As shown, a mining dryer includes a drying cylinder 14 and an outer drying cylinder 16. Support frames 4 are provided at both ends of the drying cylinder 14. A feeding port 2 is located on the outer side of one of the support frames 4. The feeding port 2 is connected to the drying cylinder 14 via a guide pipe 3. An external heating box 5 and a blower 6 are located below the feeding port 2. The air outlet of the blower 6 extends into the outer protective box 1 via a drying air supply pipe 15. The outer protective box 1 is fitted over the outer drying cylinder 16. An air inlet fitting ring 26 is fitted at the end face of the outer drying cylinder 16. The upper side is fixedly installed inside the outer protective box 1 by a fixing bracket 25. A drying material chamber 17 is provided inside the drying cylinder 14. A drying hot air chamber 18 is formed between the drying cylinder 14 and the drying outer cylinder 16. The drying air supply pipe 15 extends through the air inlet fitting ring 26 into the drying hot air chamber 18. An annular air inlet pipe 27 is provided inside the drying hot air chamber 18. An air outlet 28 is provided on the air inlet pipe 27. An inner heating box 22 is fixedly installed at the middle position of the bottom inside the outer protective box 1. The inner heating box 22 is used to heat the hot air in the middle and rear section of the drying hot air chamber 18.

[0025] Among them, a guide slope 11 is provided at the connection position between the guide pipe 3 and the drying cylinder 14, a support bearing 12 is provided at the mating position between the support frame 4 and the drying cylinder 14, and a bearing end cover 13 is provided on the outside of the support bearing 12 to protect the mating position of the bearing.

[0026] A toothed ring 21 is provided on the outer side of the drying outer cylinder 16 near the feeding port 2. A drive gear 20 is meshed on the side of the toothed ring 21. The drive gear 20 is mounted on the main shaft of the rotating motor 19. The rotating motor 19 is mounted at the bottom of the outer protective box 1. The rotating motor 19 is used to provide power for the rotation of the drying outer cylinder 16.

[0027] The drying outer cylinder 16 is fixedly connected to the drying cylinder 14. A stable support ring 30 is provided at the end of the drying outer cylinder 16 away from the toothed ring 21. A matching support seat 31 is provided below the stable support ring 30. The matching support seat 31 is provided with a set of two to ensure the stability of the drying cylinder 14 during rotation.

[0028] Spacers 23 are provided between the toothed ring 21 and the inner heating box in the outer protective box 1, and between the stabilizing support ring 30 and the inner heating box. A sealing gasket is provided at the mating position of the spacers 23 and the drying outer cylinder 16. The sealing gasket is compatible with the size and specifications of the drying outer cylinder 16 to reduce the high temperature impact of the inner heating box 22 on other components.

[0029] A discharge box 7 is fixedly installed on the outside of the support frame 4 at the end away from the feeding port 2. A main exhaust pipe 8 is installed above the discharge box 7, and a discharge port 10 is installed below the discharge box 7 to discharge the dried material.

[0030] A drying exhaust pipe 24 is connected to the air inlet fitting ring 26 near the discharge box 7. The drying exhaust pipe 24 is connected to the main exhaust pipe 8. An inspection door 9 is provided on the outside of the outer protective box 1. A scraper 29 is provided on the inner wall of the drying cylinder 14. The main exhaust pipe 8 is connected to the external dust removal equipment.

[0031] The working principle of this utility model is as follows: Material is added into the feeding port 2. The lower end of the feeding port 2 is connected to the inner cavity of the drying cylinder 14 via a guide pipe 3. A guide slope 11 is provided at the bend of the guide pipe 3 to prevent material accumulation within the guide pipe 3. The external heating box 5 and the blower 6 operate, supplying hot air into the air inlet pipe 27 through the drying air supply pipe 15. The rotating motor 19 drives the drying cylinder 14 and the outer drying cylinder 16 to rotate through the engagement of the drive gear 20 and the gear ring 21. The stabilizing support ring 30 and the cooperating support seat 31 are designed to improve the rotation of the outer drying cylinder 16. To ensure process stability, the air intake ring 26 is fixed inside the outer protective box 1 by the fixing bracket 25. During the rotation of the drying outer cylinder 16, the position of the air intake ring 26 is fixed to ensure the stability of the drying hot air intake. The drying material chamber 17 of the drying cylinder 14 is a conical structure with a large middle and small ends. The drying cylinder 14 is equipped with scrapers 29 to ensure that the material can be fully stirred and dried. The setting of the inner heating box 22 provides temperature compensation for the hot air that is constantly cooling down during the heat exchange process, ensuring that the middle and rear sections of the drying cylinder 14 can also have high drying efficiency, thereby ensuring the overall drying effect.

[0032] The dryer of this utility model is equipped with a drying cylinder 14 and a drying outer cylinder 16, forming a drying material chamber 17 and a drying hot air chamber 18, separating the mineral material from the hot air chamber, reducing the dust generated during the drying process. An inner heating box 22 is set at the middle position of the drying outer cylinder 16 along its length to heat up the cooled hot air and ensure the drying effect of the dryer. An air inlet fitting ring 26 is set at the end of the drying outer cylinder 16. The air inlet fitting ring 26 is fixedly set on the inner wall of the outer protective box 1. The air inlet fitting ring 26 and the drying outer cylinder 16 are in clearance fit. The air inlet fitting ring 26 will not rotate with the drying outer cylinder 16 to ensure the stability of the drying air supply.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A mining dryer, comprising a drying cylinder (14) and an outer drying cylinder (16), characterized in that, Both ends of the drying cylinder (14) are provided with support frames (4), and a feeding port (2) is provided on the outer side of one of the support frames (4). The feeding port (2) is connected to the drying cylinder (14) through a guide pipe (3). An external heating box (5) and a blower (6) are provided below the feeding port (2). The air outlet of the blower (6) extends into the outer protective box (1) through the drying air supply pipe (15). The outer protective box (1) is fitted on the outside of the drying outer cylinder (16). An air inlet fitting ring (26) is provided at the end face of the drying outer cylinder (16). 6) The upper outer part is fixedly installed in the outer protective box (1) by a fixing bracket (25). A drying material chamber (17) is provided in the drying cylinder (14). A drying hot air chamber (18) is formed between the drying cylinder (14) and the drying outer cylinder (16). The drying air supply pipe (15) extends through the air inlet fitting ring (26) into the drying hot air chamber (18). An air inlet pipe (27) with an annular structure is provided in the drying hot air chamber (18). An air outlet (28) is provided on the air inlet pipe (27). An inner heating box (22) is fixedly installed in the middle of the bottom of the outer protective box (1).

2. The mining dryer according to claim 1, characterized in that, A guide slope (11) is provided at the connection position between the guide pipe (3) and the drying cylinder (14), and a support bearing (12) is provided at the matching position between the support frame (4) and the drying cylinder (14). A bearing end cap (13) is provided on the outside of the support bearing (12).

3. A mining dryer according to claim 2, characterized in that, A toothed ring (21) is provided on the outer side of the drying outer cylinder (16) near the feeding port (2). A drive gear (20) is meshed on the side of the toothed ring (21). The drive gear (20) is mounted on the main shaft of the rotating motor (19). The rotating motor (19) is mounted on the bottom of the outer protective box (1).

4. A mining dryer according to claim 3, characterized in that, The drying outer cylinder (16) is fixedly connected to the drying cylinder (14). A stable support ring (30) is provided at one end of the drying outer cylinder (16) away from the toothed ring (21). A matching support seat (31) is provided below the stable support ring (30). There are two matching support seats (31).

5. A mining dryer according to claim 4, characterized in that, A spacer plate (23) is provided between the toothed ring (21) and the inner heating box (22) in the outer protective box (1), and between the stable support ring (30) and the inner heating box (22). A sealing gasket is provided at the mating position of the spacer plate (23) and the drying outer cylinder (16).

6. A mining dryer according to claim 5, characterized in that, A discharge box (7) is fixedly installed on the outside of the support frame (4) at the end away from the feeding port (2). A main exhaust pipe (8) is installed above the discharge box (7), and a discharge port (10) is installed below the discharge box (7).

7. A mining dryer according to claim 6, characterized in that, A drying exhaust pipe (24) is connected to the air intake fitting ring (26) near one end of the discharge box (7). The drying exhaust pipe (24) is connected to the main exhaust pipe (8). An inspection door (9) is provided on the outside of the outer protective box (1). A scraper (29) is provided on the inner wall of the drying cylinder (14).

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