Iron-making waste residue cooling device

Abstract

The utility model belongs to the technical field of blast furnace waste slag cooling, and relates to an ironmaking waste slag cooling device which comprises a base station and a cooling box installed on the base station, the top and the bottom of the cooling box are open, a spiral feeder is fixedly installed on the base station, the upper portion of the spiral feeder is connected with a discharging pipe, and the discharging pipe is used for conveying waste slag into the cooling box. A discharging port is formed in the lower portion of the cooling box, the lower portion of the spiral feeder is connected with a material receiving pipe, the discharging port is used for conveying cooled waste residues into the spiral feeder through the material receiving pipe, two inclined plates are fixedly installed in the cooling box, a guide table capable of being drawn out from the bottom of the cooling box is arranged below the inclined plates, and a material receiving trolley is arranged below the guide table. A water pump is fixedly installed on the outer wall of the side, away from the spiral feeder, of the cooling box, one end of a water diversion pipe is fixedly installed on a water outlet of the water pump, a water distribution pipe is fixedly installed at the other end of the water diversion pipe, and a plurality of atomization nozzles are fixedly installed at the bottom of the water distribution pipe and located above the cooling box. The iron-making waste slag cooling device disclosed by the utility model can be used for uniformly cooling blast furnace slag, so that each blast furnace slag can be cooled, and the cooling thoroughness is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blast furnace waste slag cooling, and in particular relates to an ironmaking waste slag cooling device. Background Art

[0002] Blast furnace slag is a solid waste formed by the gangue in the ore, the ash in the fuel and the non-volatile components in the solvent during the blast furnace iron-making process. In the iron-making process, the temperature of the molten iron is generally 1350-1550°C, and the slag temperature is 50-100°C higher than the molten iron temperature. Therefore, in order to facilitate people to handle these blast furnace slags, they are generally cooled first and then subjected to subsequent treatment. Common cooling methods are water cooling or air cooling, both of which can play a cooling role.

[0003] In the water cooling method mentioned above, the blast furnace slag is generally placed in a cooling pool first, and then sprayed from top to bottom to form a layer of water film on the surface of the blast furnace slag. The slag temperature is quickly reduced by evaporating the water film and taking away heat. However, when using this water cooling method, it was found that since the blast furnace slag is stacked in the cooling pool, the sprayed water mist is difficult to evenly disperse on each slag, resulting in uneven cooling. Even some of the slag cannot be sprayed with cooling water, resulting in cooling dead corners and general cooling effect.

[0004] Therefore, it is necessary to provide a new ironmaking waste slag cooling device to solve the above technical problems. Summary of the invention

[0005] The utility model aims to provide an ironmaking waste slag cooling device which can cool blast furnace slag uniformly, ensure that each blast furnace slag can be cooled, and improve the cooling thoroughness.

[0006] The utility model solves the technical problem by adopting the following technical scheme: an ironmaking waste slag cooling device comprises a base and a cooling box, the top and the bottom of the cooling box are both open, the cooling box is fixedly mounted on the base, a screw feeder is fixedly mounted on the base, a discharge pipe is connected to the upper part of the screw feeder, the discharge pipe is used to transport the waste slag into the cooling box, a discharge port is arranged at the lower part of the cooling box, a receiving pipe is connected to the lower part of the screw feeder, the discharge port is used to transport the cooled waste slag into the screw feeder through the receiving pipe, an electric push rod 2 is fixedly mounted on the outer wall of the cooling box above the discharge port, and an electric push rod 2 is fixed on the output shaft of the electric push rod 2. A connecting strip is fixedly connected, and the end of the connecting strip passes through the outer wall of the cooling box inwardly and is connected to a clamping plate, which is adapted to the discharge port. The second electric push rod drives the clamping plate to move up and down to control the opening and closing of the discharge port. Two inclined plates are fixedly installed in the cooling box, and a guide platform that can be pulled out from the bottom of the cooling box is provided below the inclined plate, and a material receiving vehicle is provided below the guide platform. A water pump is fixedly installed on the outer wall of the cooling box on one side away from the spiral feeder, and one end of a water diversion pipe is fixedly installed on the water outlet of the water pump, and a water distribution pipe is fixedly installed on the other end of the water diversion pipe, and a plurality of atomizing nozzles are fixedly installed on the bottom of the water distribution pipe, and the atomizing nozzles are located above the cooling box.

[0007] In a possible implementation, a mounting frame is fixedly installed on the outer wall of one side of the cooling box away from the screw feeder, a lead screw is rotatably installed in the mounting frame, a slide plate is threadedly installed on the lead screw, an electric push rod 1 is fixedly installed on the bottom of the slide plate, a connecting plate is fixedly installed on the output shaft of the electric push rod 1, the top of the connecting plate is fixedly connected to the guide platform, a lead screw motor is fixedly installed on the outer wall of one side of the mounting frame, the output shaft of the lead screw motor is fixedly connected to one end of the lead screw, the electric push rod 1 drives the guide platform to move up and down, and the lead screw motor drives the electric push rod 1 and the guide platform to move horizontally.

[0008] In a possible implementation, a limit rod is fixedly installed in the mounting frame, the limit rod is located below the lead screw and is arranged parallel to the lead screw, and the limit rod passes through the slide plate and is slidably connected to the slide plate.

[0009] In a possible implementation, the top surface of the guide platform is an inclined surface, and the bottom of the guide platform extends to below the cooling box.

[0010] In one possible implementation, a channel steel 1 is fixedly installed on the top of the cooling box, and the channel steel 1 is located below the discharge pipe. A channel steel 2 is installed at the discharge port of the cooling box, and the channel steel 2 is adapted to the discharge port. The receiving pipe is located below the channel steel 2, and both the channel steels 1 and 2 play a guiding role for the waste slag.

[0011] In a possible implementation, a side groove is opened on the base, a material receiving trolley is arranged in the side groove, and the material receiving trolley is located below the cooling box.

[0012] In a possible implementation, a baffle is fixedly mounted on the bottom of the cooling box, and the inner dimension of the baffle is larger than the inner dimension of the cooling box.

[0013] In a possible implementation, a drain pipe is fixedly installed at the lower part of the screw feeder, and a filter screen can be installed at the drain pipe to prevent the drain pipe from being blocked.

[0014] The utility model has the following beneficial effects: the iron-making waste slag cooling device of the utility model can form a cyclic feeding process for the waste slag by arranging an inclined plate, a guide table and a screw feeder. During the feeding process, the waste slag is always in a rolling state. At the same time, the cooling water sprayed by the atomizing nozzle cools the waste slag to ensure the uniformity and thoroughness of the cooling of the waste slag. The guide table can be quickly moved out of the cooling box, thereby facilitating the removal of the cooled waste slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the structural schematic diagrams of a preferred embodiment of the ironmaking waste slag cooling device of the utility model;

[0016] Figure 2 This is a second structural schematic diagram of a preferred embodiment of the ironmaking waste slag cooling device of the utility model;

[0017] Figure 3 It is a schematic diagram of the assembly structure of the cooling box and the guide platform in the utility model without the enclosure;

[0018] Figure 4 It is a schematic diagram of the assembly of the cooling box and the screw feeder in the utility model;

[0019] Figure 5 It is a cross-sectional structural schematic diagram of the cooling box in the utility model;

[0020] Figure 6 It is a schematic diagram of the connection structure between the mounting frame and the electric push rod in the utility model;

[0021] Figure 7 This is a schematic diagram of the connection structure between the electric push rod 2 and the clamping plate in the utility model;

[0022] Figure 8 It is a schematic diagram of the connection structure between the water distribution pipe and the atomizing nozzle in the utility model.

[0023] In the figure: 1. base; 2. cooling box; 3. screw feeder; 4. inclined plate; 5. guide table; 6. discharge port; 7. receiving pipe; 8. discharge pipe; 9. channel steel 1; 10. mounting frame; 11. screw; 12. slide plate; 13. electric push rod 1; 14. connecting plate; 15. clamping plate; 16. electric push rod 2; 17. connecting strip; 18. water pump; 19. water diversion pipe; 20. water distribution pipe; 21. atomizing nozzle; 22. discharge pipe; 23. enclosure; 24. side trough; 25. receiving cart; 26. limit rod. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the protection scope of the present invention is not limited to these embodiments. Any changes or equivalent substitutions that do not deviate from the concept of the present invention are included in the protection scope of the present invention.

[0025] like Figure 1-8 As shown, the ironmaking waste slag cooling device includes a base 1 and a cooling box 2 fixed on the top of the base 1, and the top and bottom of the cooling box 2 are both set to be openings, and a screw feeder 3 is fixed on the top of the base 1. The screw feeder 3 is arranged on one side of the cooling box 2. The screw feeder 3 is a common screw feeding equipment on the market and is relatively well known. No further details are given here. A drain pipe 22 is fixed at the lower part of the screw feeder 3, and the drain pipe 22 can discharge excess cooling water. Two inclined plates 4 are fixed in the cooling box 2, and the two inclined plates 4 are staggered left and right and up and down, so as to guide the waste slag. A guide platform 5 is provided at the lower part of the cooling box 2, and the top end face of the guide platform 5 is an inclined surface to ensure that the waste slag can flow down through the inclined surface of the guide platform 5. The bottom of the guide platform 5 extends to the bottom of the cooling box 2. A discharge port 6 is provided on the side of the cooling box 2 close to the screw feeder 3, and the waste slag falls into the discharge port 6 through the guide platform 5. A channel steel 2 is fixed on the side of the cooling box 2 close to the screw feeder 3, and the channel steel 2 is adapted to the discharge port 6. A receiving pipe 7 and a discharge pipe 8 are fixed on the screw feeder 3. The receiving pipe 7 is installed at the lower part of the screw feeder 3 and the receiving pipe 7 is located below the channel steel 2. A channel steel 9 is fixed on the top of the cooling box 2, and the discharge pipe 8 is installed on the upper part of the screw feeder 3 and the discharge pipe 8 is located above the channel steel 9.

[0026] A water pump 18 is fixed on the outer wall of the cooling box 2 away from the screw feeder 3. One end of a water diversion pipe 19 is fixed to the water outlet. A water distribution pipe 20 is fixed to the other end of the water diversion pipe 19. A plurality of atomizing nozzles 21 are fixed at the bottom of the water distribution pipe 20. Figure 8 In the embodiment shown, there are three atomizing nozzles 21, which are located above the cooling box 2. In order to ensure the stability of the water guide pipe 19, an inverted U-shaped frame is fixed on the top of the cooling box 2, and the water guide pipe 19 is fixed to the top of the inverted U-shaped frame.

[0027] In a preferred embodiment of the present invention, in order to be able to bring the guide table 5 out of the base 1, a mounting frame 10 is fixed on the outer wall of the cooling box 2 on the side away from the screw feeder 3, a lead screw 11 is installed in the mounting frame 10 for horizontal rotation, a slide plate 12 is threadedly installed on the lead screw 11, and a limit rod 26 is fixed in the mounting frame 10. The limit rod 26 is located below the lead screw 11 and is arranged parallel to the lead screw 11. The limit rod 26 passes through the slide plate 12 and is slidably connected to the slide plate 12, so that the slide plate 12 can be limited so that it can only move linearly horizontally. The bottom of the slide plate 12 is fixedly connected with an electric push rod 13, and the output shaft of the electric push rod 13 is fixedly connected with a connecting plate 14. The top of the connecting plate 14 is fixedly connected to the guide platform 5. A screw motor is fixed on the outer wall of one side of the mounting frame 10, and its output shaft is fixedly connected to one end of the screw 11. The guide platform 5 is brought downward from the cooling box 2 by extending the output shaft of the electric push rod 13, and then the screw motor is started to horizontally draw the guide platform 5 out from the bottom of the cooling box 2, so that the cooled waste slag can be smoothly discharged into the receiving vehicle 25 mentioned below.

[0028] In a preferred embodiment of the utility model, in order to be able to block the discharge port 6 first during the process of discharging waste slag, a card plate 15 is provided in the cooling box 2, and the card plate 15 is adapted to the discharge port 6, and the card plate 15 contacts the inner wall of the cooling box 2, and an electric push rod 2 16 is fixed on the outer wall of the cooling box 2 on one side close to the screw feeder 3, and a connecting strip 17 is fixed on the output shaft of the electric push rod 2 16, one side of the connecting strip 17 extends into the cooling box 2 and is fixedly connected to the card plate 15, and a sliding opening is provided on one side of the cooling box 2, and the connecting strip 17 passes through the sliding opening and contacts the inner wall of the sliding opening, and the card plate 15 can block the sliding opening, whether the output shaft of the electric push rod 2 16 is extended or retracted.

[0029] In a preferred embodiment of the utility model, in order to receive the cooled waste slag, a side groove 24 is opened on the base 1, and a material receiving vehicle 25 is arranged in the side groove 24, and the material receiving vehicle is located below the cooling box 2.

[0030] In a preferred embodiment of the utility model, when the guide platform 5 is moved out from the bottom of the cooling box 2, in order to make all the waste slag fall into the receiving vehicle 25, a fence 23 is fixed at the bottom of the cooling box 2, and the internal size of the fence is larger than the internal size of the cooling box 2. When the guide platform 5 is moved out of the cooling box 2, the fence provides a barrier for it, thereby ensuring that all the waste slag can fall into the receiving vehicle.

[0031] The working principle of the ironmaking waste slag cooling device provided by the utility model is as follows:

[0032] In this device, the water inlet of the water pump 18 is connected to the external cooling water through an external pipe. Before cooling the waste residue, a waste liquid tank is placed under the drain pipe 22;

[0033] When the waste slag is cooled, the water pump 18 is directly started, and the cooling water is sprayed out through the atomizing nozzle 21 in the form of atomization. Then, the screw feeder 3 is started and the waste slag is poured into it through the receiving pipe 7. At this time, under the spiral feeding of the screw feeder 3, the waste slag begins to rise and is finally discharged through the discharge pipe 8. Under the guidance of the channel steel 9, the waste slag is introduced into the cooling box 2. The waste slag first falls on the first inclined plate 4 and then begins to slide down continuously. During the sliding process, the atomized cooling water is sprayed on the waste slag, thereby forming a cooling effect on it. Then, the waste slag continues to fall and falls on the inclined plate 4 below, and then falls on the guide platform 5. Finally, it is discharged into the receiving pipe 7 through the discharge port 6 again, and then it is transported again and discharged into the cooling box 2 through the channel steel 9 again for continued cooling. In this reciprocating manner, the waste slag forms a cyclic cooling method, and in the cooling process, excess water also follows and enters the screw feeder 3, but is finally discharged into the waste liquid tank through the discharge pipe 22;

[0034] After cooling is completed, the electric push rod 16 is started, the output shaft of the electric push rod 16 extends out, the connecting strip 17 brings the card plate 15 down, and finally blocks the discharge port 6, and then the electric push rod 13 is started, the output shaft of the electric push rod 13 extends out, and the guide platform 5 is driven downward. During the driving process, the waste slag accumulated on it also drops. When the guide platform 5 is moved out of the cooling box 2, the screw motor can be started in the positive direction, and its output shaft drives the screw 11 to rotate. At this time, through the threaded cooperation with the slide plate 12, and under the limit of the limit rod, The slide plate 12 moves with the electric push rod 13 and the guide platform 5 away from the screw feeder 3. During the movement, the waste slag in the cooling box 2 will slide down the inclined surface at the top of the guide platform 5 and slide into the receiving vehicle 25 below. After all the waste slag falls into the receiving vehicle 25, the above steps are reversed to bring the guide platform 5 back into the cooling box 2, and then the output shaft of the electric push rod 2 16 is retracted to open the discharge port 6. Then, the next batch of waste slag to be cooled is poured into the receiving pipe 7 to continue the cooling work.

[0035] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0036] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. An ironmaking waste slag cooling device, comprising a base and a cooling box, wherein the top and bottom of the cooling box are both open, and the cooling box is fixedly mounted on the base, characterized in that: A screw feeder is fixedly installed on the base, and a discharge pipe is connected to the upper part of the screw feeder, and the discharge pipe is used to transport the waste slag into the cooling box. A discharge port is provided at the lower part of the cooling box, and a receiving pipe is connected to the lower part of the screw feeder, and the discharge port is used to transport the cooled waste slag into the screw feeder through the receiving pipe. An electric push rod 2 is fixedly installed on the outer wall of the cooling box above the discharge port, and a connecting strip is fixedly connected to the output shaft of the electric push rod 2, and the end of the connecting strip passes through the outer wall of the cooling box inwardly and is connected to a clamping plate, and the clamping plate and the discharge The material port is adapted, and the second electric push rod drives the clamping plate to move up and down to control the opening and closing of the discharge port. Two inclined plates are fixedly installed in the cooling box, and a guide platform that can be pulled out from the bottom of the cooling box is provided under the inclined plate, and a material receiving vehicle is provided under the guide platform. A water pump is fixedly installed on the outer wall of the cooling box on the side away from the spiral feeder, and one end of a water diversion pipe is fixedly installed on the water outlet of the water pump, and a water distribution pipe is fixedly installed on the other end of the water diversion pipe, and a plurality of atomizing nozzles are fixedly installed on the bottom of the water distribution pipe, and the atomizing nozzles are located above the cooling box.

2. The ironmaking waste slag cooling device according to claim 1, characterized in that: A mounting frame is fixedly installed on the outer wall of the cooling box on one side away from the screw feeder, a lead screw is rotatably installed in the mounting frame, a slide plate is threadedly installed on the lead screw, an electric push rod 1 is fixedly installed on the bottom of the slide plate, a connecting plate is fixedly installed on the output shaft of the electric push rod 1, the top of the connecting plate is fixedly connected to the guide platform, a lead screw motor is fixedly installed on the outer wall of one side of the mounting frame, the output shaft of the lead screw motor is fixedly connected to one end of the lead screw, the electric push rod 1 drives the guide platform to move up and down, and the lead screw motor drives the electric push rod 1 and the guide platform to move horizontally.

3. The ironmaking waste slag cooling device according to claim 2, characterized in that: A limit rod is fixedly installed in the mounting frame, the limit rod is located below the lead screw and is arranged parallel to the lead screw, and the limit rod passes through the slide plate and is slidably connected to the slide plate.

4. The ironmaking waste slag cooling device according to any one of claims 1 to 3, characterized in that: The top surface of the guide platform is an inclined surface, and the bottom of the guide platform extends to the bottom of the cooling box.

5. The ironmaking waste slag cooling device according to claim 1, characterized in that: A channel steel 1 is fixedly installed on the top of the cooling box, and the channel steel 1 is located below the discharge pipe. A channel steel 2 is installed at the discharge port of the cooling box, and the channel steel 2 is adapted to the discharge port. The receiving pipe is located below the channel steel 2. Both the channel steel 1 and the channel steel 2 guide the waste slag.

6. The ironmaking waste slag cooling device according to claim 1, characterized in that: The base is provided with a side groove, a material receiving trolley is arranged in the side groove, and the material receiving trolley is located below the cooling box.

7. The ironmaking waste slag cooling device according to claim 1, characterized in that: A fence is fixedly installed at the bottom of the cooling box, and the inner dimension of the fence is larger than the inner dimension of the cooling box.

8. The ironmaking waste slag cooling device according to claim 1, characterized in that: A liquid discharge pipe is fixedly installed at the lower part of the screw feeder.

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