Dehydrating and baking equipment for smelting auxiliary materials

Abstract

The utility model relates to the technical field of smelting auxiliary material drying, in particular to a smelting auxiliary material dewatering and baking device which comprises an electric arc furnace dust removal settling chamber, a baking room, a hot air inlet pipe, a supporting plate, a hot air induced draft fan, a control system, a temperature monitoring system and a humidity monitoring system. The supporting plate is arranged outside the baking room, the hot air induced draft fan is communicated with the hot air inlet pipe and arranged below the supporting plate, the control system is connected with the hot air induced draft fan and arranged on the supporting plate, and the temperature monitoring system and the humidity monitoring system are connected with the control system. The temperature monitoring system and the humidity monitoring system are both arranged in the baking room, in the whole baking process, heating equipment does not need to be additionally used for heating, energy does not need to be additionally consumed, and then the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting auxiliary material drying, in particular to a dehydration baking device for smelting auxiliary materials. Background Art

[0002] In the process of steelmaking, auxiliary materials need to be added to assist in the steelmaking process. Before adding the auxiliary materials, it is usually necessary to dry the auxiliary materials. When drying the existing auxiliary materials, most of them use a single pipeline for drying, and the heating area is not large, resulting in uneven drying of the auxiliary materials, making it difficult to thoroughly dry, and the drying efficiency is poor.

[0003] The prior art CN217442145U discloses a drying device for steelmaking auxiliary materials. By rotating the end gear disk II, the fixed rod, the rotating ring, the connecting rod, and the mixing plate rotate, stirring the auxiliary materials while making the drying of the auxiliary materials more uniform, and scraping the residual auxiliary materials on the inner wall of the drying box to prevent waste of the auxiliary materials. The heat generated by the electric heater is conducted to the electric heating ring to heat the auxiliary materials, improving the drying effect of the auxiliary materials. The overall structure of the device is simple and reasonable, and the practicability is improved.

[0004] However, when drying the above-mentioned auxiliary materials, it is usually achieved by heating with an electric heater. During the entire drying process, a large amount of electric energy is consumed, thus greatly increasing the use cost. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dehydration baking device for smelting auxiliary materials, aiming to solve the technical problem that when drying the existing auxiliary materials, it is usually achieved by heating with an electric heater. During the entire drying process, a large amount of electric energy is consumed, thus greatly increasing the use cost.

[0006] To achieve the above purpose, the utility model provides a dehydration baking device for smelting auxiliary materials, including an electric arc furnace dust removal settling chamber and a baking room. The baking room is arranged on one side of the electric arc furnace dust removal settling chamber, and further includes a hot air inlet pipe, a support plate, a hot air induced draft fan, a control system, a temperature monitoring system, and a humidity monitoring system. The hot air inlet pipe is laid in a circumferential shape around the wall and floor inside the baking room and partially extends into the electric arc furnace dust removal settling chamber. The support plate is arranged outside the baking room. The hot air induced draft fan is communicated with the hot air inlet pipe and is arranged under the support plate. The control system is connected to the hot air induced draft fan and is arranged on the support plate. The temperature monitoring system and the humidity monitoring system are respectively connected to the control system, and both the temperature monitoring system and the humidity monitoring system are arranged inside the baking room.

[0007] Wherein, a protective door is provided on one side of the baking room away from the electric arc furnace dust removal settling chamber, and the protective door is movably connected to the baking room.

[0008] Wherein, a ground heat preservation layer and a wall heat insulation layer are provided in the baking room. The ground heat preservation layer is arranged at the bottom of the baking room and under the hot air inlet pipe, and the wall heat insulation layer is arranged between the baking room and the hot air inlet pipe.

[0009] Wherein, the hot air induced draft fan is an axial flow fan, and a driving motor is connected to the hot air induced draft fan through a coupling or belt drive inside the hot air induced draft fan, and the driving motor is used to drive the hot air induced draft fan to operate.

[0010] Wherein, a main dust removal extraction pipeline is provided on one side of the hot air induced draft fan away from the hot air inlet pipe, and the main dust removal extraction pipeline is used for uniformly collecting and treating the hot air after baking.

[0011] A smelting auxiliary material dehydration baking device of the present utility model sets the baking room beside the electric arc furnace dust removal settling chamber, places the auxiliary materials in the baking room, and then uses the temperature monitoring system and the humidity monitoring system to monitor the temperature and humidity in the baking room in real time, and transmits the monitoring results to the control system, so that the control system will control the start and stop of the hot air induced draft fan according to the monitoring results. Through the start of the hot air induced draft fan, the hot air induced draft fan will introduce the waste heat of the hot air in the electric arc furnace in the electric arc furnace dust removal settling chamber into the baking room through the hot air inlet pipe, so as to dehydrate and bake the auxiliary materials in the baking room, enabling the auxiliary materials to meet the requirements of production and product quality. Since no additional heating equipment is required for heating during the whole baking process, no additional energy consumption is needed, thereby reducing the usage cost. It solves the technical problem that existing auxiliary materials are usually dried by using an electric heater for heating, which consumes a large amount of electric energy during the whole drying process, thus greatly increasing the usage cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0013] Figure 1 FIG. is the overall structural schematic diagram of the smelting auxiliary material dehydration baking device according to the first embodiment of the present utility model.

[0014] Figure 2 FIG. is the cross-sectional schematic diagram of the smelting auxiliary material dehydration baking device according to the first embodiment of the present utility model along the hot air induced draft fan.

[0015] Figure 3It is a schematic cross-sectional view of the control system of the smelting auxiliary material dehydration and baking equipment according to the first embodiment of the present utility model.

[0016] Figure 4 It is the Figure 3 enlarged view of part A of the smelting auxiliary material dehydration and baking equipment according to the first embodiment of the present utility model.

[0017] In the figure: 101 - Electric arc furnace dust settling chamber, 102 - Baking room, 103 - Hot air inlet duct, 104 - Support plate, 105 - Hot air induced draft fan, 106 - Control system, 107 - Temperature monitoring system, 108 - Humidity monitoring system, 109 - Protection door, 110 - Floor heat preservation layer, 111 - Wall heat insulation layer, 112 - Driving motor, 113 - Dust main exhaust duct, 114 - First air duct, 115 - Second air duct. Detailed implementation manners

[0018] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0019] First embodiment

[0020] Please refer to Figures 1 to 4 , Figure 1 which is the overall structural schematic diagram of the smelting auxiliary material dehydration and baking equipment according to the first embodiment of the present utility model, Figure 2 which is the schematic cross-sectional view of the smelting auxiliary material dehydration and baking equipment along the hot air induced draft fan 105 according to the first embodiment of the present utility model, Figure 3 which is the schematic cross-sectional view of the smelting auxiliary material dehydration and baking equipment along the control system 106 according to the first embodiment of the present utility model, Figure 4 It is the Figure 3 enlarged view of part A of the smelting auxiliary material dehydration and baking equipment according to the first embodiment of the present utility model.

[0021] The present utility model provides a smelting auxiliary material dehydration and baking equipment, which includes an electric arc furnace dust settling chamber 101, a baking room 102, a hot air inlet duct 103, a support plate 104, a hot air induced draft fan 105, a control system 106, a temperature monitoring system 107 and a humidity monitoring system 108. By the foregoing solution, the problem that the existing auxiliary materials are usually dried by heating with an electric heater, and a large amount of electric energy is consumed during the whole drying process, thus greatly increasing the use cost, is solved. It can be understood that the foregoing solution can be used in the scenario of drying auxiliary materials during the steelmaking process.

[0022] In this embodiment, by arranging the baking room 102 beside the electric arc furnace dust settling chamber 101, placing auxiliary materials in the baking room 102, and then using the temperature monitoring system 107 and the humidity monitoring system 108 to monitor the temperature and humidity in the baking room 102 in real time, and transmitting the monitoring results to the control system 106, the control system 106 will control the start and stop of the hot air induced draft fan 105 according to the monitoring results. By starting the hot air induced draft fan 105, the hot air induced draft fan 105 will introduce the waste heat of the hot air in the electric arc furnace dust settling chamber 101 into the baking room 102 through the hot air inlet pipe, so as to dehydrate and bake the auxiliary materials in the baking room 102, enabling the auxiliary materials to meet the requirements of production and product quality. Since no additional heating equipment is required for heating during the whole baking process, no additional energy consumption is needed, thus reducing the use cost. This solves the technical problem that in the existing drying of auxiliary materials, electric heaters are usually used for heating, which consumes a large amount of electric energy during the whole drying process, thus greatly increasing the use cost.

[0023] Among them, the baking room 102 is arranged on one side of the electric arc furnace dust settling chamber 101. The hot air inlet pipe 103 is laid in a circular shape around the wall and floor in the baking room 102 and partially extends into the electric arc furnace dust settling chamber 101. The support plate 104 is arranged outside the baking room 102. The hot air induced draft fan 105 is communicated with the hot air inlet pipe 103 and is arranged under the support plate 104. The control system 106 is connected to the hot air induced draft fan 105 and is arranged on the support plate 104. The temperature monitoring system 107 and the humidity monitoring system 108 are respectively connected to the control system 106. The temperature monitoring system 107 and the humidity monitoring system 108 are both arranged in the baking room 102. Both the electric arc furnace dust settling chamber 101 and the baking room 102 have a hollow structure inside. The baking room 102 is 86m 2The baking room 102 is made of heat-insulating bricks for steel structure masonry. The hot air inlet pipe 103 consists of a group of rectangular pipes with a size of 200mm * 100mm to form a loop-shaped hot air pipe. The hot air inlet pipe 103 is made of a material with high thermal conductivity. The temperature monitoring system 107 and the humidity monitoring system 108 can respectively monitor the temperature and humidity in the baking room 102 in real time, and transmit the monitoring results to the control system 106 in real time, so that the control system 106 can automatically turn on or off the hot air induced draft fan 105 according to the temperature set value in the baking room 102. After the hot air induced draft fan 105 is turned on, the hot air induced draft fan 105 can introduce the hot air in the electric arc furnace dust removal settling chamber 101 into the hot air inlet pipe 103, and conduct the hot air temperature into the air in the baking room 102 through the hot air inlet pipe 103, heat the air in the baking room 102, and then use the hot air in the baking room 102 to dehydrate the auxiliary materials to achieve dehydration baking of the auxiliary materials.

[0024] Secondly, a protective door 109 is provided on one side of the baking room 102 away from the electric arc furnace dust removal settling chamber 101. The protective door 109 is movably connected to the baking room 102, so that the protective door 109 can move inside the baking room 102, and further the protective door 109 can open or close the internal space of the baking room 102.

[0025] Thirdly, a ground heat-insulating layer 110 and a wall heat-insulating layer 111 are provided in the baking room 102. The ground heat-insulating layer 110 is arranged at the bottom of the baking room 102 and is located below the hot air inlet pipe 103. The wall heat-insulating layer 111 is arranged between the baking room 102 and the hot air inlet pipe 103. By providing the ground heat-insulating layer 110 and the wall heat-insulating layer 111, the ground heat-insulating layer 110 and the wall heat-insulating layer 111 can insulate the baking room 102, and further the heat of the hot air in the hot air inlet pipe 103 can be completely retained in the baking room 102 without heat loss.

[0026] At the same time, the hot air induced draft fan 105 is an axial flow fan. A driving motor 112 is connected to the hot air induced draft fan 105 through a coupling or belt drive inside the hot air induced draft fan 105. The driving motor 112 is used to drive the hot air induced draft fan 105 to operate. The fan speed of the hot air induced draft fan 105 is 1440r / min; the air volume is more than 21600m3 / h; the air pressure is 160 - 230Pa; the diameter of the fan blade is ф700 mm. The fan blade and the box body of the hot air induced draft fan 105 are both made of stainless steel. The driving motor 112 is a 4-pole three-phase asynchronous motor with a rated voltage of 380V and a rated power of 5.5KW. A Siemens G120XG three-phase 380V 7.5KW frequency converter is adopted.

[0027] Finally, a main dust extraction duct 113 is provided on the side of the hot air induced draft fan 105 away from the hot air inlet duct 103. The main dust extraction duct 113 is used for uniformly collecting and treating the hot air after baking. A first air duct 114 and a second air duct 115 are respectively provided on the left and right sides of the hot air induced draft fan 105. The hot air inlet duct 103 is communicated with the hot air induced draft fan 105 through the first air duct 114, and the hot air induced draft fan 105 is communicated with the main dust extraction duct 113 through the second air duct 115. Thus, the hot air in the hot air inlet duct 103 can be introduced into the hot air induced draft fan 105 from the first air duct 114, and then be transmitted from the hot air induced draft fan 105 to the main dust extraction duct 113 through the second air duct 115 for uniform collection and treatment.

[0028] When using the present utility model, rotate the protective door 109 in the baking chamber 102 to open the baking chamber 102. Then, place the auxiliary materials in the baking chamber 102 in areas according to categories, and then close the protective door 109. After the protective door 109 is closed, start the control system 106 and operate the control system 106 to make the control system 106 control the temperature monitoring system 107 and the humidity monitoring system 108 to start. Thus, the temperature monitoring system 107 and the humidity monitoring system 108 can respectively monitor the temperature and humidity in the baking chamber 102 in real time, and transmit the monitoring results to the control system 106 in real time. Thus, the control system 106 can automatically turn on or off the hot air induced draft fan 105 according to the temperature set value in the baking chamber 102. When the hot air induced draft fan 105 is turned on, the hot air induced draft fan 105 can introduce the hot air in the electric arc furnace dust settling chamber 101 into the hot air inlet duct 103, and conduct the hot air temperature into the air in the baking chamber 102 through the hot air inlet duct 103 to heat the air in the baking chamber 102, and then use the hot air in the baking chamber 102 to dehydrate the auxiliary materials to realize the dehydration baking of the auxiliary materials.

[0029] After baking is completed, introduce the hot air in the hot air inlet duct 103 into the hot air induced draft fan 105 through the first air duct 114. Then, the hot air in the hot air induced draft fan 105 will be transmitted into the main dust extraction duct 113 through the second air duct 115 to facilitate the uniform collection and treatment of the hot air after baking.

[0030] The above-disclosed is only a preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of rights of the present utility model. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. A dehydration and baking equipment for smelting auxiliary materials, comprising an electric arc furnace dust removal and settling chamber and a baking room, wherein the baking room is arranged on one side of the electric arc furnace dust removal and settling chamber, and is characterized in that: It also includes a hot air inlet duct, a support plate, a hot air induced draft fan, a control system, a temperature monitoring system and a humidity monitoring system. The hot air inlet duct is laid in a surrounding manner around the walls and the floor of the baking room, and partially extends into the dust removal and settling chamber of the electric arc furnace. The support plate is arranged outside the baking room. The hot air induced draft fan is connected to the hot air inlet duct and is arranged under the support plate. The control system is connected to the hot air induced draft fan and is arranged on the support plate. The temperature monitoring system and the humidity monitoring system are respectively connected to the control system, and the temperature monitoring system and the humidity monitoring system are both arranged in the baking room.

2. The dehydration and baking equipment for smelting auxiliary materials according to claim 1, characterized in that: A protective door is provided on a side of the baking room away from the electric arc furnace dust removal and settling chamber, and the protective door is movably connected to the baking room.

3. The dehydration and baking equipment for smelting auxiliary materials according to claim 1, characterized in that: The baking room is provided with a floor insulation layer and a wall insulation layer. The floor insulation layer is arranged at the bottom of the baking room and is located under the hot air inlet pipe. The wall insulation layer is arranged between the baking room and the hot air inlet pipe.

4. The dehydration and baking equipment for smelting auxiliary materials according to claim 1, characterized in that: The hot air induced draft fan is an axial flow fan, and a driving motor is connected to the hot air induced draft fan via a coupling or a belt drive, and the driving motor is used to drive the hot air induced draft fan to operate.

5. The dehydration and baking equipment for smelting auxiliary materials according to claim 4, characterized in that: A dust removal main exhaust duct is arranged on one side of the hot air induced draft fan away from the hot air inlet duct, and the dust removal main exhaust duct is used for uniformly collecting and processing the hot air after baking.

Images