CN210346274U

CN210346274U - Rotary kiln waste heat recovery device

Info

Publication number: CN210346274U
Application number: CN201921255952.2U
Authority: CN
Inventors: 马世强; 程全忠
Original assignee: Gongyi Shunyuan Ceramsite Sand Co ltd
Current assignee: Gongyi Shunyuan Ceramsite Sand Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-04-17
Anticipated expiration: 2029-08-05

Abstract

The utility model relates to an inorganic non-metallic material field discloses a rotary kiln waste heat recovery device, it includes the kiln head, kiln tail and gyration barrel, the gyration barrel rotates to be installed between kiln head and kiln tail, still be provided with the support between kiln head and the kiln tail, gyration barrel top is provided with the thermal-arrest cover that has the inner chamber, the inner chamber of thermal-arrest cover is the arc and extends along the axial lead direction of gyration barrel, the thermal-arrest cover is installed on the support, the air intake has been seted up on the face that the thermal-arrest cover is close to the gyration barrel, it has seted up the air outlet on keeping away from the face of gyration barrel, the air intake is located the axial lead both sides of gyration barrel respectively with the air outlet, the. The utility model has the advantages that: the upper surface of the rotary cylinder is enabled to generate air flow through the exhaust fan, heat energy is recycled, meanwhile, the rotary cylinder is cooled through the air flow, the rotary cylinder is prevented from being damaged by high temperature, and economic benefits are improved.

Description

Rotary kiln waste heat recovery device

Technical Field

The utility model relates to an inorganic non-metallic material field, especially a rotary kiln waste heat recovery device.

Background

The rotary kiln is a common device in industrial production, when the rotary kiln calcines materials, the materials are put into the rotary kiln, the rotary kiln is heated by adding pulverized coal or coal gas to be heated to a high temperature required by calcination, and then the materials in the kiln body are calcined, a large amount of waste heat is generated in the production process of the rotary kiln at present, the main utilization method at present is to additionally arrange waste heat boilers at the kiln head and the kiln tail to generate steam to drive a steam turbine to generate power and do work, but the waste heat resources in the flue gas can only be collected through the waste heat power generation technology at the kiln head and the kiln tail, the radiation heat generated on the surface of the rotary kiln cylinder body does not have a stable and safe utilization method, and the waste heat generated by the rotary kiln directly disappears in.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary kiln waste heat recovery device to solve the extravagant problem of current rotary kiln barrel surface heat source.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a rotary kiln waste heat recovery device, includes kiln head, kiln tail and gyration barrel, the gyration barrel rotates to be installed the kiln head with between the kiln tail, still be provided with the support between kiln head and the kiln tail, gyration barrel top is provided with the thermal-arrest cover that has the inner chamber, the inner chamber of thermal-arrest cover is the arc and follows the axial lead direction of gyration barrel extends, the thermal-arrest cover is installed on the support, the thermal-arrest cover is close to the air intake has been seted up on the face of gyration barrel, and it is kept away from the air outlet has been seted up on the face of gyration barrel, the air intake with the air outlet is located respectively the axial lead both sides of gyration barrel, the air outlet is connected with the air exhauster.

Preferably, the air inlets are a plurality of and are uniformly distributed along the axial lead direction of the rotary cylinder body.

Preferably, the surface of the heat collection cover, which is far away from the rotary cylinder body, is provided with glass wool.

Preferably, a plurality of supporting sheets are arranged on the outer wall of the rotary cylinder body, the surface where the supporting sheets are located is tangent to the outer circle of the rotary cylinder body, supporting wheels are hinged to one ends, far away from the rotary cylinder body, of the supporting sheets, two heat collecting covers are hinged to the ends, far away from the rotary cylinder body, of the supporting sheets, and the supporting wheels are located between the two heat collecting covers.

Preferably, the supporting wheel includes interior wheel and foreign steamer, the welding has the annular plate between interior wheel and the foreign steamer, one side of annular plate is provided with a plurality of first strengthening ribs, first strengthening rib is followed the circumference equipartition of annular plate, the opposite side of annular plate is provided with a plurality of second strengthening ribs, first strengthening rib with the second strengthening rib is in coincide on the circumferential position of annular plate.

Preferably, the annular plate is provided with a plurality of weight-reducing through holes, and only one weight-reducing through hole is arranged between two adjacent first reinforcing ribs.

Compared with the prior art, the beneficial effects of the utility model are that: the upper surface of the rotary cylinder is enabled to generate air flow through the exhaust fan, heat energy is recycled, meanwhile, the rotary cylinder is cooled through the air flow, the rotary cylinder is prevented from being damaged by high temperature, and economic benefits are improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a first schematic structural view of a heat collecting cover;

FIG. 3 is a schematic structural view II of the heat collecting cover;

FIG. 4 is a schematic structural view of the support wheel;

in the figure, 1-kiln head, 2-kiln tail, 3-rotary cylinder body, 4-bracket, 5-heat collecting cover, 51-air inlet, 52-air outlet, 6-exhaust fan, 7-glass wool, 8-supporting sheet, 9-supporting wheel, 91-inner wheel, 92-outer wheel, 93-annular plate, 94-first reinforcing rib and 95-weight reducing through hole.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a rotary kiln waste heat recovery device comprises a kiln head 1, a kiln tail 2 and a rotary cylinder 3, wherein the rotary cylinder 3 is rotatably installed between the kiln head 1 and the kiln tail 2, the kiln head 1 and the rotary cylinder 3, and the kiln tail 2 and the rotary cylinder 3 are sealed by fish flakes to prevent dust leakage, a support 4 is further arranged between the kiln head 1 and the kiln tail 2, a heat collecting cover 5 with an inner cavity is arranged above the rotary cylinder 3, the inner cavity of the heat collecting cover 5 is arc-shaped and extends along the axial lead direction of the rotary cylinder 3, a gap is arranged between the heat collecting cover 5 and the rotary cylinder 3, the heat collecting cover 5 is installed on the support 4, an air inlet 51 is arranged on the surface of the heat collecting cover 5 close to the rotary cylinder 3, an air outlet 52 is arranged on the surface far away from the rotary cylinder 3, the air inlet 51 and the air outlet 52 are respectively positioned on two sides, the air outlet 52 is connected with an exhaust fan 6, the rotation direction of the rotary cylinder 3 is opposite to the air flowing direction in the heat collection cover 5, the exhaust fan 6 sucks hot air between the heat collection cover 5 and the rotary cylinder 3 into the heat collection cover 5, cold air outside the heat collection cover 5 enters a gap between the heat collection cover 5 and the rotary cylinder 3, the temperature of the entering cold air is increased due to heat radiation of the rotary cylinder 3, heat is brought into the heat collection cover 5, the air outlet 52 of the exhaust fan 6 is connected with drying equipment, the heat energy of the rotary cylinder 3 is introduced into the drying equipment for utilization, the heat energy is saved, and the economic benefit is improved.

In the present embodiment, as shown in fig. 1 to 3, the plurality of air inlets 51 are uniformly distributed along the axial line direction of the rotary cylinder 3, the plurality of air inlets 51 increase the heat energy input amount, and the heat energy collection efficiency is high.

In this embodiment, as shown in fig. 2, the surface of the heat collecting cover 5 away from the rotary cylinder 3 is provided with glass wool 7, and the glass wool 7 is made of a heat insulating material, so that the heat energy is prevented from being dissipated too fast.

In this embodiment, as shown in fig. 4, a plurality of support sheets 8 are arranged on the outer wall of the rotary cylinder 3, the surface where the support sheets 8 are located is tangent to the outer circle of the rotary cylinder 3, support wheels 9 are hinged to one ends, far away from the rotary cylinder 3, of the support sheets 8, the two heat collection covers 5 are provided, the support wheels 9 are located between the two heat collection covers 5, the support wheels 9 support the motion of the rotary kiln, deformation of the rotary cylinder is prevented, upward thrust is provided for the rotary kiln, the support sheets 8 reduce high-temperature radiation of the rotary cylinder 3 to the rotary wheels, the rotary wheels are prevented from being damaged by high temperature, and the service life of the rotary.

In this embodiment, as shown in fig. 4, the supporting wheel 9 includes an inner wheel 91 and an outer wheel 92, an annular plate 93 is welded between the inner wheel 91 and the outer wheel 92, the annular plate 93 is a circular plate with a through hole at the center, the inner circle of the annular plate 93 is welded to the outer side of the inner wheel 91, the outer circle of the annular plate 93 is welded to the inner side of the outer wheel 92, the annular plate 93 reduces the weight of the supporting wheel 9, one side of the annular plate 93 is provided with a plurality of first reinforcing ribs 94, the first reinforcing ribs 94 are uniformly distributed along the circumferential direction of the annular plate 93, the other side of the annular plate 93 is provided with a plurality of second reinforcing ribs, the first reinforcing ribs 94 and the second reinforcing ribs are overlapped at the circumferential position of the annular plate 93, and the reinforcing ribs enable the supporting wheel 93 to bear larger radial pressure.

In this embodiment, as shown in fig. 4, a plurality of weight-reducing through holes 95 are formed in the annular plate 93, only one weight-reducing through hole 95 is formed between two adjacent first reinforcing ribs 94, the weight of the supporting wheel 9 is further reduced by the weight-reducing through holes 95, preferably, a plurality of teeth are arranged on the outer wall of the outer wheel 92, the teeth are uniformly distributed along the circumferential direction of the outer wheel 92, the teeth are meshed with a driving gear on the rotary kiln, the upward thrust is more stably transmitted to the rotary cylinder 3, and the rotary cylinder 3 is not prone to slip when rotating.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a rotary kiln waste heat recovery device, includes kiln head (1), kiln tail (2) and rotary barrel (3), rotary barrel (3) rotate to be installed kiln head (1) with between kiln tail (2), still be provided with support (4), its characterized in that between kiln head (1) and kiln tail (2): gyration barrel (3) top is provided with thermal-arrest cover (5) that have the inner chamber, the inner chamber of thermal-arrest cover (5) is the arc and follows the axial lead direction of gyration barrel (3) extends, install thermal-arrest cover (5) on support (4), thermal-arrest cover (5) are close to seted up air intake (51) on the face of gyration barrel (3), and it keeps away from air outlet (52) have been seted up on the face of gyration barrel (3), air intake (51) with air outlet (52) are located respectively the axial lead both sides of gyration barrel (3), air outlet (52) are connected with air exhauster (6).

2. The waste heat recovery device of the rotary kiln as claimed in claim 1, wherein: the air inlets (51) are multiple and are uniformly distributed along the axial lead direction of the rotary cylinder body (3).

3. The waste heat recovery device of the rotary kiln according to claim 1 or 2, characterized in that: and glass wool (7) is arranged on the surface of the heat collection cover (5) far away from the rotary cylinder (3).

4. The waste heat recovery device of the rotary kiln as claimed in claim 3, characterized in that: the solar heat collection device is characterized in that a plurality of supporting pieces (8) are arranged on the outer wall of the rotary cylinder body (3), the surface where the supporting pieces (8) are located is tangent to the outer circle of the rotary cylinder body (3), one end, far away from the supporting pieces (8), of the rotary cylinder body (3) is hinged to supporting wheels (9), the number of the heat collection covers (5) is two, and the supporting wheels (9) are located between the heat collection covers (5).

5. The waste heat recovery device of the rotary kiln as claimed in claim 4, characterized in that: the supporting wheel (9) comprises an inner wheel (91) and an outer wheel (92), wherein an annular plate (93) is welded between the inner wheel (91) and the outer wheel (92), a plurality of first reinforcing ribs (94) are arranged on one side of the annular plate (93), the first reinforcing ribs (94) are uniformly distributed in the circumferential direction of the annular plate (93), a plurality of second reinforcing ribs are arranged on the other side of the annular plate (93), and the first reinforcing ribs (94) and the second reinforcing ribs are superposed in the circumferential position of the annular plate (93).

6. The waste heat recovery device of the rotary kiln as claimed in claim 5, characterized in that: the annular plate (93) is provided with a plurality of weight-reducing through holes (95), and only one weight-reducing through hole (95) is arranged between two adjacent first reinforcing ribs (94).