High-efficiency recovery device for lead slag waste heat resources in lead smelting process

Abstract

The utility model discloses an efficient lead slag waste heat resource recovery device in a lead smelting process, which comprises a tank body, a feed port is arranged at the top of the tank body, and a discharge pipe is arranged on the side wall of the bottom of the tank body; the device comprises a tank body and further comprises a material turning barrel vertically arranged in the tank body, a material turning groove is formed in the top end of the material turning barrel, a feeding groove is formed in the bottom end of the material turning barrel, and a heat transfer assembly is arranged in the material turning barrel and used for recycling heat of lead slag passing through the material turning barrel. A hot air assembly is arranged on the side wall of the tank body and used for recycling heat dissipated from the side wall of the tank body. The utility model belongs to the technical field of lead smelting, and particularly relates to an efficient recovery device for lead slag waste heat resources in the lead smelting process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lead smelting technical field, specifically point to a kind of lead smelting process lead residue waste heat resource efficient recovery device. BACKGROUND

[0002] In lead smelting industry, lead residue is produced as the inevitable byproduct of smelting process. Every production of one ton of lead, often with the generation of hundreds of kilograms of lead residue, these lead residue is discharged from smelting furnace, contains considerable waste heat energy.

[0003] However, for a long time, the treatment of lead residue waste heat in the industry is relatively extensive, and the traditional method is to directly discharge high-temperature lead residue into cooling pool, and to cool it down by natural cooling or water cooling. This treatment method not only causes a lot of waste heat resources to be wasted, which is a great waste from the perspective of energy utilization, and increases the energy cost input of enterprises. Moreover, during the process of direct cooling of high-temperature lead residue, a large amount of heat is released to the surrounding environment, causing the temperature of the surrounding local environment to rise, affecting the ecological balance, and the water vapor generated by the evaporation of cooling water and the pollutants it may carry also pollute the atmospheric environment. With the increasing emphasis on energy saving and emission reduction around the world, and the increasing pressure on enterprises to reduce production costs and improve economic efficiency. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is that the existing technology cannot effectively utilize the heat of the treatment of lead residue waste heat, resulting in energy waste and increasing the cost input.

[0005] In order to realize the above functions, the technical scheme adopted by the utility model is as follows: a lead residue waste heat resource efficient recovery device in lead smelting process, comprising a tank body, a feed inlet is arranged on the top of the tank body, a discharge pipe is arranged on the side wall of the bottom of the tank body;

[0006] Further comprising a vertical stirring cylinder arranged in the tank body, a stirring groove is arranged at the top end of the stirring cylinder, a feed groove is arranged at the bottom end of the stirring cylinder, a heat transfer assembly is arranged in the stirring cylinder for recovering the heat of lead residue passing through the stirring cylinder;

[0007] A hot air assembly is arranged on the side wall of the tank body for recovering the heat emitted on the side wall of the tank body.

[0008] Further, the heat transfer assembly comprises a heat transfer cavity and a driving shaft, the heat transfer cavity is arranged in the side wall of the stirring cylinder, heat exchange pipes are arranged around the heat transfer cavity, a water inlet pipe is arranged at the top end of the heat exchange pipes and penetrates the tank body, a water outlet pipe is arranged at the bottom end of the heat exchange pipes and penetrates the tank body, the driving shaft is rotatably arranged in the tank body and inside the stirring cylinder, a motor is arranged on the bottom end of the driving shaft and mounted on the bottom wall of the tank body, and auger blades are arranged on the driving shaft.

[0009] Further, the heat transfer cavity is filled with a graphene material heat-conducting filler.

[0010] Further, the hot air assembly comprises a cavity interlayer and an air pipe, the cavity interlayer is arranged in the side wall of the tank body in a closed ring shape, and the air pipe is arranged on both sides of the tank body and communicates with the cavity interlayer.

[0011] As preferred, the bottom end of the tank body is funnel-shaped.

[0012] The beneficial effects of the lead smelting process lead slag waste heat resource efficient recovery device are as follows: through the driving shaft and the auger blade, the lead slag at the bottom of the tank body is turned upward through the turning barrel, and the heat of the lead slag passing through the turning barrel is absorbed by the heat exchange pipe, so that the heat is reused, and through the cavity interlayer and the air pipe, the cold air can be heated and delivered to the workshop heating system or other air preheating links through the pipeline, thereby increasing the heat reuse effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The overall structure of the lead smelting process lead slag waste heat resource efficient recovery device is shown in the figure;

[0014] Figure 2 The cross-sectional structure of the lead smelting process lead slag waste heat resource efficient recovery device is shown in the figure Figure One ;

[0015] Figure 3 The structure of the turning barrel of the lead smelting process lead slag waste heat resource efficient recovery device is shown in the figure;

[0016] Figure 4 The cross-sectional structure of the lead smelting process lead slag waste heat resource efficient recovery device is shown in the figure Figure Two .

[0017] 1, tank body, 2, feed inlet, 3, discharge pipe, 4, turning barrel, 5, turning groove, 6, feed groove, 7, heat transfer assembly, 8, hot air assembly, 9, heat transfer cavity, 10, driving shaft, 11, heat exchange pipe, 12, water inlet pipe, 13, water outlet pipe, 14, motor, 15, auger blade, 16, heat-conducting filler, 17, cavity interlayer, 18, air pipe. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The present application will be further described in detail below in conjunction with the drawings.

[0020] As shown in Figures 1-4 The present application provides a lead smelting process lead slag waste heat resource efficient recovery device, which comprises a tank body 1, a feed inlet 2 is arranged at the top of the tank body 1, and a discharge pipe 3 is arranged on the side wall of the bottom of the tank body 1; for the lead slag in and out heat exchange.

[0021] It also includes a vertical stirring cylinder 4 arranged in the tank body 1, a stirring groove 5 is arranged at the top end of the stirring cylinder 4, a feeding groove 6 is arranged at the bottom end of the stirring cylinder 4, a heat transfer assembly 7 is arranged in the stirring cylinder 4, which is used for recovering the heat of the lead slag passing through the stirring cylinder 4, the heat transfer assembly 7 comprises a heat transfer cavity 9 and a driving shaft 10, the heat transfer cavity 9 is arranged in the side wall of the stirring cylinder 4, the heat transfer cavity 9 is filled with a heat-conducting filler 16 of graphene material, the heat transfer cavity 9 is surrounded by a heat exchange pipe 11, the top end of the heat exchange pipe 11 is provided with a water inlet pipe 12 penetrating the tank body 1, the bottom end of the heat exchange pipe 11 is provided with a water outlet pipe 13 penetrating the tank body 1, the driving shaft 10 is rotatably arranged in the tank body 1 and arranged inside the stirring cylinder 4, the bottom end of the driving shaft 10 is connected with a motor 14 arranged on the bottom wall of the tank body 1, and a screw blade 15 is arranged on the driving shaft 10;

[0022] When heat is recovered, cold water is introduced into the water inlet pipe 12, absorbs the heat in the tank 1 through the heat exchange pipe 11 and flows out from the water outlet pipe 13, so that the waste heat in the lead slag can be reused, at the same time, the motor 14 is started, the driving shaft 10 is rotated, the auger blade 15 is rotated, the lead slag in the tank 1 enters the stirring cylinder 4 through the feeding groove 6, is transported through the auger blade 15 and is discharged from the stirring groove 5, so that the lead slag in the tank 1 can be circulated and stirred, heat transfer is more uniform, the heat-conducting filler 16 can support the heat exchange pipe 11 while ensuring good heat conduction effect, and deformation of the heat exchange pipe 11 caused by gravity for a long time is avoided.

[0023] As shown in Figure 2 The side wall of the tank 1 is provided with a hot air assembly 8 for recovering heat emitted on the side wall of the tank 1, the hot air assembly 8 comprises a cavity sandwich 17 and an air pipe 18, the cavity sandwich 17 is arranged in the side wall of the tank 1 in a closed ring shape, the air pipe 18 is arranged on both sides of the tank 1 and communicates with the cavity sandwich 17, clean air is introduced into the air pipe 18 on one side to absorb the heat emitted in the tank 1, form hot air, the hot air can be introduced into a workshop for heating or other links requiring preheated air, and the utilization mode of heat is increased.

[0024] The bottom end of the tank 1 is funnel-shaped, facilitating the lead slag to enter the feeding groove 6.

[0025] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. A lead smelting process lead slag waste heat resource efficient recovery device, comprising a tank body (1), the top of the tank body (1) is provided with a feeding port (2), the bottom side wall of the tank body (1) is provided with a discharge pipe (3); characterized in that: It also includes a vertical stirring cylinder (4) in the tank body (1), the top end of the stirring cylinder (4) is provided with a stirring groove (5), the bottom end of the stirring cylinder (4) is provided with a feeding groove (6), the stirring cylinder (4) is provided with a heat transfer assembly (7) for recovering the heat of the lead slag passing through the stirring cylinder (4); The side wall of the tank body (1) is provided with a hot air assembly (8) for recovering the heat emitted on the side wall of the tank body (1).

2. The device for efficient recovery of lead slag waste heat resources in a lead smelting process according to claim 1, characterized in that: The heat transfer assembly (7) includes a heat transfer cavity (9) and a driving shaft (10), the heat transfer cavity (9) is arranged in the side wall of the stirring cylinder (4), the heat transfer cavity (9) is surrounded by a heat exchange pipe (11), the top end of the heat exchange pipe (11) is provided with a water inlet pipe (12) penetrating the tank body (1), the bottom end of the heat exchange pipe (11) is provided with a water outlet pipe (13) penetrating the tank body (1), the driving shaft (10) is rotatably arranged in the tank body (1) and inside the stirring cylinder (4), the bottom end of the driving shaft (10) is connected with a motor (14) mounted on the bottom wall of the tank body (1), the driving shaft (10) is provided with an auger blade (15).

3. The device for efficient recovery of lead slag waste heat resources in a lead smelting process according to claim 2, characterized in that: The heat transfer cavity (9) is filled with a heat-conducting filler (16) made of graphene material.

4. The device for efficient recovery of lead slag waste heat resources in a lead smelting process according to any one of claims 1-3, characterized in that: The hot air assembly (8) includes a cavity sandwich layer (17) and an air pipe (18), the cavity sandwich layer (17) is arranged in the side wall of the tank body (1) in a closed ring shape, and the air pipe (18) is arranged on both sides of the tank body (1) and communicates with the cavity sandwich layer (17).

5. The device for efficient recovery of lead slag waste heat resources in a lead smelting process according to any one of claims 1-3, characterized in that: The bottom end of the tank body (1) is funnel-shaped.

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