Energy-saving sintering machine waste heat recovery device

Abstract

The utility model discloses an energy -saving sintering machine waste heat recovery device relates to sintering machine technical field, including water tank, the top fixedly connected with float ball valve and liquid level detection mechanism of water tank, and water tank bottom and one side are fixedly connected with water delivery pipe and the communicating pipe respectively, and the one end fixedly connected with recovery subassembly of communicating pipe, and recovery subassembly is surrounded and is provided with the outer thermal -insulated cover, and recovery subassembly includes recovery main part and the smoke pipe main body of its matched setting, and the inboard fixedly connected with the fairwater of recovery main part. Through the heat conducting layer of concentration department reaches the effect of the concentration and heat conduction to the flue gas in recovery main part, through the effect of the convenient recovery main part along its outward flow through the flow guide port, through the effect of the concentration flue gas heat in the water pipe main body outside position through the heat collection cover, through the effect of the storage water source in the water tank through the water pipe main body, the communicating seat and the water injection pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering machine field especially relates to an energy -conserving type sintering machine waste heat recovery device. BACKGROUND

[0002] Sintering machine is applicable to the sintering operation of large black metallurgical sintering plant, and is mainly applicable to the sintering treatment of iron ore powder in large and medium -sized scale sintering plant, in the steel industry, the sintering furnace is one of important equipment in process production, and the flue gas heat generated in the working process is large, and if direct treatment is carried out and is discharged, it is not conducive to other energy -conserving and emission reduction.

[0003] At present, the existing sintering machine usually recovers waste heat by heating water into steam, but the existing waste heat recovery device has low utilization efficiency of hot flue gas, and it is difficult to realize the maximum utilization of resources.

[0004] Therefore, the utility model provides an energy -conserving type sintering machine waste heat recovery device. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides an energy -conserving type sintering machine waste heat recovery device, which solves the problems in the background art.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: an energy -conserving type sintering machine waste heat recovery device, including water tank, the top of water tank is fixedly connected with float ball valve and liquid level detection mechanism, and the bottom and one side of water tank are fixedly connected with water delivery pipe and communication pipe respectively, the one end of communication pipe is fixedly connected with recovery assembly, and the outer periphery of recovery assembly is provided with outer thermal insulation sleeve;

[0007] The recovery assembly includes a recovery main body and a smoke pipe main body arranged in the recovery main body, a deflector is fixedly connected to the inner side of the recovery main body, a pressure detection mechanism is embedded in the outer side of the recovery main body, a water pipe main body is embedded in the inner side of the recovery main body, a heat collecting sleeve fixedly connected to the recovery main body is arranged around the outer side of the water pipe main body, a concentrating part is arranged in the recovery main body, a heat conducting layer is fixedly connected to the inner side of the concentrating part, a flow guide opening is formed in the surface of the concentrating part, a communication seat is fixedly connected to the tail end of the water pipe main body, and a water injection pipe is fixedly connected to the outer end of the communication seat.

[0008] As a further technical scheme of the utility model, the outer thermal insulation sleeve and the recovery assembly are integrally connected, and the surface of the outer thermal insulation sleeve is provided with openings corresponding to the pressure detection mechanism and the communication pipe.

[0009] As a further technical scheme of the utility model, the recovery main body is in a cylindrical sandwich structure, the inside of the sandwich is hollow, and a pressure control valve is arranged at the top end of the recovery main body; the flow guide plate is arranged in a threaded manner along the inside of the sandwich; the recovery main body and the smoke pipe main body are connected through a group of strip-shaped openings; and the tail end of the smoke pipe main body is provided with a smoke inlet pipe.

[0010] As a further technical scheme of the utility model, the heat collecting sleeves are arranged in pairs, and four groups are arranged in total; each group is composed of two oppositely distributed arc-shaped heat collecting plates; and the heat collecting sleeves are arranged in a longitudinal manner along the inside surface of the recovery main body and surround the water pipe main body.

[0011] As a further technical scheme of the utility model, the concentrating part is arranged in a longitudinal manner, and four groups are arranged at equal intervals along the inside of the sandwich of the recovery main body; the inside of the sandwich of the recovery main body and the concentrating part are arranged in an arc-shaped manner; the heat conducting layer is arranged in a longitudinal manner along the inside of the concentrating part; the heat conducting layer is arranged in an arc-shaped copper heat conducting layer; and the flow guide opening is arranged at the longitudinal top end of the concentrating part and is located at the two sides of the longitudinal top end of the heat conducting layer.

[0012] As a further technical scheme of the utility model, the water pipe main body is arranged in four groups, and the groups are connected through heat conducting fins; the water pipe main body is connected to the communicating seat; the water injection pipe is arranged in an L shape, and the outer end of the water injection pipe penetrates the smoke pipe main body and is arranged outward.

[0013] As a further technical scheme of the utility model, the longitudinal outer end of the water pipe main body penetrates the recovery main body and is connected to the steam pipe; the water pipe main body and the communicating seat are located in the inside of the recovery main body; and the water injection pipe is located in the inside of the smoke pipe main body.

[0014] Compared with the prior art, the energy-saving sintering machine waste heat recovery device has the following beneficial effects:

[0015] 1. The energy-saving sintering machine waste heat recovery device has the effects of heat preservation and protection on the whole recovery assembly through the outer heat preservation sleeve, the effect of flow guiding along the recovery main body through the flow guide plate in the inside of the recovery main body, and the effect of smoke gas conveying into the recovery main body through the smoke pipe main body.

[0016] 2. The energy-saving sintering machine waste heat recovery device has the effects of smoke gas concentration and heat conduction in the recovery main body through the concentrating part and the heat conducting layer, the effect of facilitating the outward flow of smoke gas in the recovery main body through the flow guide opening, the effect of smoke gas heat concentration on the outside of the water pipe main body through the heat collecting sleeve, and the effect of water source storage in the water storage tank through the water pipe main body, the communicating seat and the water injection pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure front view of an energy-saving sintering machine waste heat recovery device.

[0018] Figure 2 It is a recycling assembly structure connection front view of an energy-saving sintering machine waste heat recovery device;

[0019] Figure 3 It is a recycling assembly structure connection schematic view of an energy-saving sintering machine waste heat recovery device;

[0020] Figure 4 It is a water pipe main body connection structure schematic view of an energy-saving sintering machine waste heat recovery device.

[0021] In the figure: 1, water tank; 2, water delivery pipe; 3, floating ball valve; 4, liquid level detection mechanism; 5, communication pipe; 6, outer heat preservation sleeve; 7, recycling assembly; 8, recycling main body; 9, flow guide plate; 10, pressure detection mechanism; 11, water pipe main body; 12, heat collection sleeve; 13, concentration part; 14, flow guide opening; 15, heat conduction layer; 16, smoke pipe main body; 17, water injection pipe; 18, steam pipe; 19, communication seat. DETAILED DESCRIPTION

[0022] 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 the present application.

[0023] Please refer to Figures 1-4 The present application provides an energy-saving sintering machine waste heat recovery device technical scheme: comprising a water tank 1, the top end of the water tank 1 is fixedly connected with a floating ball valve 3 and a liquid level detection mechanism 4, the bottom end and one side of the water tank 1 are fixedly connected with a water delivery pipe 2 and a communication pipe 5 respectively, one end of the communication pipe 5 is fixedly connected with a recycling assembly 7, and the recycling assembly 7 is externally surrounded by an outer heat preservation sleeve 6.

[0024] The recycling assembly 7 comprises a recycling main body 8 and a smoke pipe main body 16 arranged in a matched mode, the inner side of the recycling main body 8 is fixedly connected with a flow guide plate 9, the recycling main body 8 is externally embedded with a pressure detection mechanism 10, the inner side of the recycling main body 8 is embedded with a water pipe main body 11, the outer side of the water pipe main body 11 is surrounded by a heat collection sleeve 12 fixedly connected with the recycling main body 8, the inside of the recycling main body 8 is provided with a concentration part 13, the inner side of the concentration part 13 is fixedly connected with a heat conduction layer 15, the surface of the concentration part 13 is provided with a flow guide opening 14, the tail end of the water pipe main body 11 is fixedly connected with a communication seat 19, and the outer end of the communication seat 19 is fixedly connected with a water injection pipe 17.

[0025] As Figure 1As shown, the outer thermal insulation sleeve 6 and the recovery assembly 7 are integrally connected, and the surface is provided with openings corresponding to the pressure detection mechanism 10 and the communication pipe 5. The outer thermal insulation sleeve 6 can achieve the effect of thermal insulation and protection of the whole recovery assembly 7.

[0026] As shown in the figure, Figures 1-2 The recovery body 8 is in a cylindrical sandwich structure, the inside of which is hollow, and the top end of the recovery body 8 is provided with a pressure control valve. The deflector 9 is arranged in a threaded manner along the inside of the sandwich structure. The recovery body 8 and the smoke pipe body 16 are connected through a group of strip-shaped openings. The tail end of the smoke pipe body 16 is provided with a smoke inlet pipe. The recovery body 8 cooperates with the deflector 9 inside it to achieve the effect of guiding the flow. The smoke pipe body 16 achieves the effect of conveying flue gas into the recovery body 8.

[0027] As shown in the figure, Figure 2 The heat collecting sleeve 12 is arranged in two groups, a total of four groups, each group consisting of two oppositely distributed arc-shaped heat collecting plates. The heat collecting sleeve 12 is arranged along the inside surface of the recovery body 8 in a longitudinal direction, and is arranged in a surrounding manner corresponding to the water pipe body 11. The concentrating part 13 is arranged in a longitudinal direction, and is arranged in four groups at equal intervals along the inside of the sandwich structure of the recovery body 8. The inside of the sandwich structure of the recovery body 8 and the concentrating part 13 are arranged in an arc-shaped closing transition. The heat conducting layer 15 is arranged in a longitudinal direction along the inside of the concentrating part 13, and is arranged in an arc-shaped copper heat conducting layer. The flow guide opening 14 is arranged at the longitudinal top end position of the concentrating part 13, and is located at the longitudinal top end position of the heat conducting layer 15. The concentrating part 13 cooperates with the heat conducting layer 15 to achieve the effect of concentrating and conducting heat of the flue gas in the recovery body 8. The flow guide opening 14 achieves the effect of facilitating the flow of flue gas in the recovery body 8. The heat collecting sleeve 12 achieves the effect of concentrating flue gas heat outside the water pipe body 11.

[0028] The flue gas flows into the recovery body 8 through the smoke pipe body 16, and flows along the deflector 9 inside the recovery body 8 in a spiral manner. The flue gas flows in the recovery body 8 for a long time, and cooperates with the heat conducting layer 15 to effectively concentrate heat, which is convenient for subsequent waste heat recovery processing. When the flue gas flows to the top end position of the recovery body 8, it flows out of the flow guide opening 14 and concentrates in the internal space of the recovery body 8, and contacts the heat collecting sleeve 12. Under the action of the heat collecting sleeve 12, the water pipe body 11 is heated and surrounded, and then the waste heat recovery processing is effectively realized. In actual use, the pressure inside the recovery body 8 is detected by the pressure detection mechanism 10.

[0029] As shown in the figure, Figures 3-4As shown, the water pipe body 11 is provided with four groups, two by two through the heat conduction fin connection, water pipe body 11 and the communication seat 19 are connected, the water injection pipe 17 is "L" shape setting, its outer end is simultaneously through the flue pipe body 16 outward setting, water pipe body 11 longitudinal outer end is simultaneously through the recovery body 8 outward and the steam pipe 18 communication connection, water pipe body 11 and the communication seat 19 are simultaneously located in the recovery body 8 inside, and the water injection pipe 17 is located in the flue pipe body 16 inside, through water pipe body 11, the communication seat 19 and the water injection pipe 17 reach the effect of storing water source in the storage tank 1.

[0030] The water source in the water tank 1 is transported to the communication seat 19 and the water pipe body 11 through the communication pipe 5 and the water injection pipe 17, then the flue gas enters the recovery body 8, the water pipe body 11 is surrounded and heated, and the water source in the water pipe body 11 generates water vapor after heating, which is discharged outward through the steam pipe 18.

[0031] The working principle of the utility model is as follows: when the device is used, the flue gas can surround and heat the water pipe body 11 in the form of inner and outer surrounding through the sandwiched recovery body 8 cooperating with the heat conduction layer 15 and the heat collecting sleeve 12, which greatly improves the waste heat recovery of the flue gas, the water source after heating generates water vapor, which is discharged through the steam pipe 18, and the pressure control valve realizes the control of the internal pressure of the recovery body 8 through the pressure detection mechanism 10.

[0032] The above is only the preferred embodiment of the utility model, it should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, can make several improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model. The structure, device and operation method not specifically described and explained in the utility model, if no special description and limitation, are implemented according to the conventional means in the art.

Claims

1. An energy-saving sintering machine waste heat recovery device, characterized by: The utility model provides a water tank (1), water tank (1) top fixedly connected with float ball valve (3) and liquid level detection mechanism (4), water tank (1) bottom and one side are fixedly connected with water pipe (2) and communication pipe (5) respectively, communication pipe (5) one end fixedly connected with recovery assembly (7), recovery assembly (7) outer surrounding set up outer thermal insulation cover (6), Recovery assembly (7) includes recovery main part (8) and its matched setting smoke pipe main part (16), the inside fixedly connected with deflector (9) of recovery main part (8), recovery main part (8) outer embedded pressure detection mechanism (10) is set up, the inside embedded water pipe main part (11) of recovery main part (8), the outside of water pipe main part (11) is surrounded and is fixedly connected with the heat collecting cover (12) of recovery main part (8), the inside of recovery main part (8) is provided with concentration department (13), the inside fixedly connected with heat conducting layer (15) of concentration department (13), the surface of concentration department (13) is provided with flow guide mouth (14), the tail end fixedly connected with the communication seat (19) of water pipe main part (11), the outer end fixedly connected with the water injection pipe (17) of communication seat (19).

2. The energy-saving sintering machine waste heat recovery device according to claim 1, characterized in that: The outer thermal insulation cover (6) and recovery assembly (7) are integrally connected, and a hole is formed on the surface of the outer thermal insulation cover (6) corresponding to the pressure detection mechanism (10) and the communication pipe (5).

3. The energy-saving sintering machine waste heat recovery device according to claim 1, characterized in that: The recovery main part (8) is in a cylindrical sandwiched structure, and the inside of the sandwiched structure is hollow. The top end of the recovery main part (8) is provided with a pressure control valve. The deflector (9) is in a threaded structure along the inside of the sandwiched structure. The recovery main part (8) and the smoke pipe main part (16) are connected through a group of strip-shaped openings. The tail end of the smoke pipe main part (16) is provided with a smoke inlet pipe.

4. The energy-saving sintering machine waste heat recovery device according to claim 1, characterized in that: The heat collecting cover (12) is provided with four groups of arc-shaped heat collecting plates. The heat collecting cover (12) is longitudinally arranged along the inside surface of the recovery main part (8) and surrounds the water pipe main part (11).

5. The energy-saving sintering machine waste heat recovery device according to claim 1, characterized in that: The concentration department (13) is longitudinally arranged. Four groups of concentration departments (13) are equidistantly arranged along the inside of the sandwiched structure of the recovery main part (8). The inside of the sandwiched structure of the recovery main part (8) and the concentration department (13) are transitionally arranged in an arc shape. The heat conducting layer (15) is longitudinally arranged along the inside of the concentration department (13) and is an arc-shaped copper heat conducting layer. The flow guide mouth (14) is arranged at the longitudinal top end of the concentration department (13) and is located on both sides of the longitudinal top end of the heat conducting layer (15).

6. The energy-saving sintering machine waste heat recovery device according to claim 1, characterized in that: The water pipe main part (11) is provided with four groups of heat conducting fins. The water pipe main part (11) is connected with the communication seat (19). The water injection pipe (17) is in an "L" shape and is arranged outside the smoke pipe main part (16).

7. The energy-saving sintering machine waste heat recovery device according to claim 6, characterized in that: The longitudinal outer end of the water pipe main part (11) penetrates the recovery main part (8) and is connected with the steam pipe (18). The water pipe main part (11) and the communication seat (19) are located inside the recovery main part (8). The water injection pipe (17) is located inside the smoke pipe main part (16).

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