Waste heat recovery assembly based on kiln cylinder radiant heat

Abstract

The utility model relates to the field of waste heat recovery, in particular to a waste heat recovery assembly based on kiln barrel radiant heat, which comprises a rotary kiln barrel, a heat collecting cover is arranged on the outer side of the rotary kiln barrel, first water through grooves are arranged on two sides of the heat collecting cover, a second water through groove is arranged above the heat collecting cover, and side plates are arranged on two sides of the heat collecting cover. A top plate fixed through bolts is arranged above the heat collecting cover, a centrifugal fan is installed above the top plate through bolts, and a connecting square pipe is fixedly installed at an air outlet of the centrifugal fan. An external cooling water source is communicated with the water distribution pipe, at the moment, cooling water flows into the heat collection cover, so that radiant heat emitted by the rotary kiln barrel is absorbed and reused, and when water enters the first water passing groove and the second water passing groove, the centrifugal fan is started synchronously, so that the heat dissipation efficiency of the rotary kiln is improved. When the centrifugal fan is started, external air is blown into the first air groove and the second air groove through the ventilation frame, so that heat dissipated by water in the side plates and the top plate is further absorbed, and maximum energy utilization is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of waste heat recovery, especially based on kiln cylinder radiation heat's waste heat recovery assembly. BACKGROUND

[0002] In the field of ore smelting, the rotary kiln is an important roasting equipment, in the roasting process of material, the cylinder of rotary kiln will send out a large amount of heat outward, at present, mainly rely on the heat collection cover to recycle this part of heat;

[0003] At present, the heat collection cover is mostly through the water in the cover, and then through the radiation heat of rotary kiln to heat the water flow in the heat collection cover, so as to achieve the purpose of recycling the radiation heat of kiln cylinder, but the water flow in the heat collection cover will also send out heat after heating to high temperature, so that the recycling efficiency of the existing heat collection cover to the radiation heat of rotary kiln cylinder is not high.

[0004] In view of the above technical defects, a solution is proposed. UTILITY MODEL CONTENT

[0005] The utility model aims at providing based on kiln cylinder radiation heat's waste heat recovery assembly, solves the technical defects that the above proposes.

[0006] The purpose of the utility model can be realized by the following technical schemes:

[0007] Based on kiln cylinder radiation heat's waste heat recovery assembly, including rotary kiln cylinder, the outside of rotary kiln cylinder is placed with heat collection cover, the both sides of heat collection cover are equipped with first water channel, the top of heat collection cover is equipped with second water channel, the both sides of heat collection cover are also equipped with side plate, the top of heat collection cover is equipped with the top plate of bolt fixation, the top of top plate is installed with centrifugal fan through bolt, the air outlet of centrifugal fan is fixedly installed with connecting square tube, the both ends of heat collection cover are also equipped with ventilation frame.

[0008] Preferably, the both sides of the heat collection cover are embedded with first sealing gasket, the top of the heat collection cover is embedded with second sealing gasket, the second water channel is provided with second water inlet pipe on one side of the middle section, and the second water inlet pipe is in communication with the inside of the second water channel and is fixedly connected with the heat collection cover.

[0009] Preferably, the other side of the second water channel is provided with symmetrically distributed second water outlet pipe, and the second water outlet pipe is in communication with the inside of the second water channel and is fixedly connected with the heat collection cover.

[0010] Preferably, one side below the first water channel is provided with a first water inlet pipe, the first water inlet pipe is fixedly connected with the heat collecting cover and communicates with the inside of the first water channel, the other side above the first water channel is provided with a first water outlet pipe, the first water outlet pipe is fixedly connected with the heat collecting cover and communicates with the inside of the first water channel.

[0011] Preferably, one end of the heat collecting cover is provided with a mixing pipe, the mixing pipe is connected with the first water outlet pipe and the second water outlet pipe through pipes and communicates with the inside of the pipes, the other end of the heat collecting cover is provided with a water distribution pipe, the water distribution pipe is connected with the second water inlet pipe and the first water inlet pipe through pipes and communicates with the inside of the pipes.

[0012] Preferably, one side of the side plate close to the heat collecting cover is provided with a third water channel corresponding to the first water channel, one side of the side plate is further provided with a first sealing groove corresponding to the first sealing pad, and the inside of the side plate is further provided with a first air groove.

[0013] Preferably, the side plate is fixed with the heat collecting cover through bolts, the inside of the top plate is further provided with a fourth water channel corresponding to the second water channel, a second sealing groove corresponding to the second sealing pad, and a second air groove, the ventilation frame is fixed with the top plate and the second air groove through bolts, and the ventilation frame communicates with the first air groove and the second air groove.

[0014] The utility model discloses the beneficial effect is as follows:

[0015] The utility model discloses a cooling device for rotary kiln, which comprises a heat collecting cover, a side plate, a top plate and a ventilation frame, wherein the heat collecting cover is fixedly connected with the side plate and the top plate, the heat collecting cover is provided with a first water inlet pipe and a second water inlet pipe, the first water inlet pipe and the second water inlet pipe are connected with a water distribution pipe through pipes and communicate with the inside of the pipes, the heat collecting cover is provided with a first water channel and a second water channel, the first water channel and the second water channel are connected with the first water inlet pipe and the second water inlet pipe through pipes and communicate with the inside of the pipes, the side plate is provided with a first sealing pad, the top plate is provided with a second sealing pad, the ventilation frame is fixed with the top plate through bolts, the ventilation frame communicates with the first water channel and the second water channel, and the ventilation frame is provided with a first air groove and a second air groove. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model makes further explanation in combination with the drawings.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model discloses;

[0018] Figure 2 It is the connecting structure schematic diagram of heat collecting cover in the utility model discloses;

[0019] Figure 3 It is the cross section structure schematic diagram of side plate in the utility model discloses;

[0020] Figure 4 It is the inside structure schematic diagram of top plate in the utility model discloses.

[0021] Figure 5 Figure 1 is a connection structure diagram of the ventilation frame and the centrifugal fan in the present application.

[0022] Legend: 1, rotary kiln cylinder; 11, heat collecting cover; 12, first water channel; 13, second water channel; 14, first sealing pad; 15, second sealing pad; 16, first water outlet pipe; 17, second water outlet pipe; 18, mixing pipe; 19, first water inlet pipe; 20, second water inlet pipe; 21, water distribution pipe; 22, side plate; 23, third water channel; 24, first sealing groove; 25, first air channel; 26, top plate; 27, second air channel; 28, fourth water channel; 29, second sealing groove; 30, ventilation frame; 31, centrifugal fan; 32, connecting square pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figure 1 - Figure 5 As shown in the figure, the present application is a waste heat recovery assembly based on kiln cylinder radiation heat, which comprises a rotary kiln cylinder 1, a heat collecting cover 11 is placed on the outer side of the rotary kiln cylinder 1, a first water channel 12 is formed on both sides of the heat collecting cover 11, a second water channel 13 is formed on the upper side of the heat collecting cover 11, a first sealing pad 14 is embedded in the inside of both sides of the heat collecting cover 11, a second sealing pad 15 is embedded in the inside of the upper side of the heat collecting cover 11, a second water inlet pipe 20 is arranged on one side of the middle section of the second water channel 13, the second water inlet pipe 20 is in communication with the inside of the second water channel 13 and is fixedly connected with the heat collecting cover 11, and symmetrically distributed second water outlet pipes 17 are arranged on the other side of the second water channel 13, the second water outlet pipes 17 are in communication with the inside of the second water channel 13 and are fixedly connected with the heat collecting cover 11.

[0025] A first water inlet pipe 19 is arranged on one side below the first water channel 12, the first water inlet pipe 19 is fixedly connected with the heat collecting cover 11 and is in communication with the inside of the first water channel 12, a first water outlet pipe 16 is arranged on the other side above the first water channel 12, the first water outlet pipe 16 is fixedly connected with the heat collecting cover 11 and is in communication with the inside of the first water channel 12, a mixing pipe 18 is arranged at one end of the heat collecting cover 11, the mixing pipe 18 is connected with the first water outlet pipe 16 and the second water outlet pipe 17 through pipes and is in communication inside, a water distribution pipe 21 is arranged at the other end of the heat collecting cover 11, the water distribution pipe 21 is connected with the second water inlet pipe 20 and the first water inlet pipe 19 through pipes and is in communication inside.

[0026] The side plate 22 is provided with a third water channel 23 corresponding to the first water channel 12, a first sealing groove 24 corresponding to the first sealing pad 14, and a first air channel 25 in the inside of the side plate 22.

[0027] The centrifugal fan 31 is installed on the top plate 26 by bolts, and a connecting square pipe 32 is fixedly installed on the air outlet of the centrifugal fan 31.

[0028] The working process and principle of the utility model are as follows:

[0029] In use, first, the device is installed by bolts to Figure 1 The cooling water is then introduced into the first water channel 12 and the second water channel 13 through the second water channel 13 and the first water channel 12, so that the radiation heat emitted by the rotary kiln cylinder 1 is absorbed and reused.

[0030] When the water enters the first water channel 12 and the second water channel 13, the centrifugal fan 31 is started to blow the air outside into the first air channel 25 and the second air channel 27 through the ventilation frame 30, so that the heat emitted by the water in the side plate 22 and the top plate 26 is further absorbed, thereby maximizing the energy utilization.

[0031] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also limit the utility model to the specific implementation only. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the technical personnel in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. Waste heat recovery assembly based on radiation heat of the kiln shell, comprising a rotary kiln shell (1), characterized in that, The outer side of the rotary kiln cylinder (1) is provided with a heat collecting cover (11), the two sides of the heat collecting cover (11) are provided with first water channels (12), the upper side of the heat collecting cover (11) is provided with second water channels (13), the two sides of the heat collecting cover (11) are also provided with side plates (22), the upper side of the heat collecting cover (11) is provided with a bolt-fixed top plate (26), the upper side of the top plate (26) is provided with a centrifugal fan (31) through bolt installation, the air outlet of the centrifugal fan (31) is fixedly provided with a connecting square pipe (32), and the two ends of the heat collecting cover (11) are also provided with ventilation racks (30).

2. The kiln shell radiation heat based waste heat recovery assembly as claimed in claim 1, wherein, The two sides of the heat collecting cover (11) are embedded with first sealing pads (14), the upper side of the heat collecting cover (11) is embedded with second sealing pads (15), one side of the middle section of the second water channel (13) is provided with a second water inlet pipe (20), the second water inlet pipe (20) is in communication with the inside of the second water channel (13) and is fixedly connected with the heat collecting cover (11).

3. The kiln shell radiation heat based waste heat recovery assembly as claimed in claim 1, wherein, The other side of the second water channel (13) is provided with symmetrically distributed second water outlet pipes (17), the second water outlet pipes (17) are in communication with the inside of the second water channel (13) and are fixedly connected with the heat collecting cover (11).

4. The kiln shell radiation heat based waste heat recovery assembly as claimed in claim 1, wherein, The lower side of the first water channel (12) is provided with a first water inlet pipe (19), the first water inlet pipe (19) is fixedly connected with the heat collecting cover (11) and is in communication with the inside of the first water channel (12), the other side of the upper side of the first water channel (12) is provided with a first water outlet pipe (16), the first water outlet pipe (16) is fixedly connected with the heat collecting cover (11) and is in communication with the inside of the first water channel (12).

5. The kiln shell radiation heat based waste heat recovery assembly as claimed in claim 1, wherein, One end of the heat collecting cover (11) is provided with a mixing pipe (18), the mixing pipe (18) is connected and communicated with the first water outlet pipe (16) and the second water outlet pipe (17) through pipes, the other end of the heat collecting cover (11) is provided with a water distribution pipe (21), the water distribution pipe (21) is connected and communicated with the second water inlet pipe (20) and the first water inlet pipe (19) through pipes.

6. The kiln shell radiation heat based waste heat recovery assembly as claimed in claim 1, wherein, The side plate (22) is provided with a third water channel (23) corresponding to the first water channel (12) on the side close to the heat collecting cover (11), the side plate (22) is also provided with a first sealing groove (24) on one side, the first sealing groove (24) corresponds to the first sealing pad (14), and the inside of the side plate (22) is also provided with a first air groove (25).

7. The kiln shell radiation heat based waste heat recovery assembly as claimed in claim 1, wherein, The side plate (22) and the heat collecting cover (11) are fixed through bolts, the lower side of the top plate (26) is provided with a fourth water channel (28) corresponding to the second water channel (13), the inside of the top plate (26) is also provided with a second sealing groove (29), the second sealing groove (29) corresponds to the second sealing pad (15), the inside of the top plate (26) is provided with a second air groove (27), the ventilation rack (30) is fixed with the top plate (26) and the second air groove (27) through bolts, and the ventilation rack (30) is in communication with the first air groove (25) and the second air groove (27) inside.

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