Waste heat recovery device for comprehensive utilization of steel slag

Abstract

The utility model provides a waste heat recovery device for comprehensive utilization of steel slag, which belongs to the technical field of waste heat recovery of steel slag and comprises a box body, an air pump is arranged above one side wall of the box body, an input end of the air pump is positioned inside the box body, an output end of the air pump is connected with an air outlet pipe, a discharge pipe is arranged at the bottom of the box body, and a water valve is arranged at the end of the discharge pipe. A driving frame is arranged on the outer side wall of the box body, a motor is arranged in the center of the outer wall of the driving frame, the output end of the motor penetrates through the outer wall of the driving frame and is connected with a driving gear, through holes are formed in the two sides of the surface of the driving frame, a water inlet pipe penetrates through the through holes of the driving frame and extends into the box body, and a driven gear is arranged on the surface of the water inlet pipe; a connecting cylinder is installed at the end of the water inlet pipe, a plurality of heat conduction pipes are evenly arranged on the surface of the connecting cylinder, a water outlet pipe is arranged at the end of the connecting cylinder, and a water valve is arranged at the end of the water outlet pipe. The waste heat recovery device can improve the waste heat recovery amount and is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of steel slag waste heat recovery, in particular to a waste heat recovery device for comprehensive utilization of steel slag. Background Art

[0002] During the production process, steel enterprises will produce a large amount of high-temperature steel slag, which is a kind of high-temperature solid waste. When treating it, the high-temperature steel slag waste heat recovery device can be used to recycle the temperature of the steel slag;

[0003] The utility model with the authorization announcement number CN 218579993 U discloses a waste heat recovery device for comprehensive utilization of steel slag, including a connecting seat, a box body is arranged on one side of the top of the connecting seat, and a filter box is arranged on the other side of the top of the connecting seat. The high-temperature steel slag waste heat recovery device is provided with an exhaust fan, a connecting pipe, a storage shell, a card slot, a handle, a filter screen and a card block. When the exhaust fan is started, the exhaust fan extracts the waste heat generated by the steel slag inside the box body into the inside of the filter box through the connecting pipe. After the waste heat is extracted into the inside of the filter box, it will be discharged to the required place through the outlet again for reuse of the waste heat. When the waste heat passes through the filter screen, the filter screen can filter the impurities in the waste heat and filter the impurities to the top of the filter screen. By filtering the impurities, the impurities in the waste heat can be prevented from affecting the reuse of the waste heat, thereby solving the problem that the waste heat in the steel slag is not effectively filtered and the waste heat is easy to contain impurities.

[0004] Although the device can recover the hot air generated by the steel slag, it cannot recover the heat generated by the steel slag itself. The amount of waste heat recovered is small and its practicality is poor. Utility Model Content

[0005] In view of this, the utility model provides a waste heat recovery device for comprehensive utilization of steel slag, which can improve the waste heat recovery amount and has strong practicality.

[0006] In order to solve the above technical problems, the utility model provides a waste heat recovery device for comprehensive utilization of steel slag, including a box body, an air pump is arranged above one side wall of the box body, the input end of the air pump is located inside the box body, the output end of the air pump is connected to an air outlet pipe, a discharge pipe is arranged at the bottom of the box body, a water valve is arranged at the end of the discharge pipe, a driving frame is arranged on the outer wall of the box body, a motor is arranged at the center of the outer wall of the driving frame, the output end of the motor passes through the outer wall of the driving frame, and the output end of the motor is connected to a driving gear, through holes are opened on both sides of the surface of the driving frame, and the A water inlet pipe is arranged through the through hole and extends to the inside of the box body. A driven gear is arranged on the surface of the water inlet pipe, and the driving gear is meshed with the driven gear. A connecting tube is installed at the end of the water inlet pipe, and a number of heat conduction tubes are evenly arranged on the surface of the connecting tube. A water outlet pipe is arranged at the end of the connecting tube, and a water valve is arranged at the end of the water outlet pipe. The staff first puts cold water into the water tank, and then slowly puts high-temperature steel slag into the water tank. When the high-temperature steel slag contacts the cold water, the cold water will boil. The vacuum pump is started to pump water vapor into the air outlet pipe, and the air outlet pipe is connected through an external pipeline. The pipe can transmit water vapor to other equipment for secondary utilization. At the same time, the staff continues to add water, and the steel slag is cooled by soaking it in water, and the cold water exchanges heat with the steel slag. The staff opens the water valve of the discharge pipe to discharge the hot water for recycling. When the steel slag is cooled, the staff inputs cold water into the water inlet pipe, and the cold water enters the connecting tube through the water inlet pipe, and then enters the heat transfer tube on the surface through the connecting tube. The staff starts the motor to drive the active gear to rotate, and the active gear drives the driven gear to rotate. The driven gear drives the water inlet pipe and the connecting tube to rotate, and the connecting tube drives the heat transfer tube to stir the steel slag. The cooling efficiency is improved by stirring the steel slag. At the same time, the heat inside the steel slag exchanges heat with the water inside the heat transfer tube and the connecting tube at the same time. Finally, the water valve of the outlet pipe is opened to discharge the hot water after heat exchange through the outlet pipe for recycling. By collecting the heat exchange of water vapor and hot water, not only the waste heat recovery of high-temperature steel slag is realized, but also the steel slag can be cooled, thereby increasing the waste heat recovery amount, which is highly practical.

[0007] A damping ring is arranged on the inner wall of the box body and corresponds to the position of the water inlet pipe, and the outer wall of the water inlet pipe penetrates the damping ring arranged on the inner wall of the box body. The damping ring makes the rotation process of the water inlet pipe and the connecting tube more stable.

[0008] A sealing cover is provided on the upper surface of the box body to prevent heat loss.

[0009] Slide rails are arranged on both sides of the lower inner wall of the box body, and filter plates are slidingly arranged in the slide rails. A sealing strip is arranged on one side of the filter plate. A through groove is opened on the outer wall of the box body at the position of the sealing strip, and the sealing strip is located in the through groove on the outer wall of the box body. A handle is arranged on the surface of the sealing strip. The filter plate can filter impurities in hot water to improve the purity of the hot water.

[0010] A filter screen and an activated carbon adsorption layer are arranged in the air outlet pipe to filter out the fine impurities in the steel slag.

[0011] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0012] 1. When the utility model is used, the staff first puts cold water into the water tank, and then slowly puts the high-temperature steel slag into the water tank. When the high-temperature steel slag contacts the cold water, the cold water will boil. The vacuum pump is started to pump water vapor into the air outlet pipe. The air outlet pipe is connected through an external pipeline to transmit the water vapor to other equipment for secondary utilization. At the same time, the staff continues to add water to cool the steel slag by soaking it in water, and the cold water and the steel slag are heat-exchanged. The staff opens the water valve of the discharge pipe to discharge the hot water for recycling. When the steel slag is cooled, the staff inputs cold water into the water inlet pipe, and the cold water enters the connecting cylinder through the water inlet pipe, and then passes through the connecting cylinder. After entering the heat transfer pipe on the surface, the staff starts the motor to drive the active gear to rotate, the active gear drives the driven gear to rotate, the driven gear drives the water inlet pipe and the connecting tube to rotate, and the connecting tube drives the heat transfer pipe to stir the steel slag. The cooling efficiency is improved by stirring the steel slag. At the same time, the heat inside the steel slag exchanges heat with the water inside the heat transfer pipe and the connecting tube. Finally, the water valve of the water outlet pipe is opened to discharge the hot water after heat exchange through the water outlet pipe for recycling. By collecting the heat exchange of water vapor and hot water, not only the waste heat recovery of high-temperature steel slag is realized, but also the steel slag can be cooled, thereby increasing the waste heat recovery amount, which is highly practical.

[0013] 2. When the utility model is used, a damping ring is arranged on the inner wall of the box body and corresponds to the position of the water inlet pipe, and the outer wall of the water inlet pipe penetrates the damping ring arranged on the inner wall of the box body, and the damping ring makes the rotation process of the water inlet pipe and the connecting tube more stable.

[0014] 3. When the utility model is used, slide rails are arranged on both sides below the inner wall of the box body, filter plates are slidingly arranged in the slide rails, a sealing strip is arranged on one side of the filter plate, a through groove is opened on the outer wall of the box body at the position of the sealing strip, and the sealing strip is located in the through groove on the outer wall of the box body, a handle is arranged on the surface of the sealing strip, and the filter plate can filter impurities in the hot water to improve the purity of the hot water.

[0015] 4. When the utility model is used, a filter screen and an activated carbon adsorption layer are arranged in the air outlet pipe, so that fine impurities attached to the steel slag can be filtered. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a top view of the interior of the box of the utility model;

[0018] Figure 3 This is a cross-sectional view of the internal test of the box of the utility model.

[0019] Explanation of the reference numerals: 100, casing; 101, sealing cover; 102, discharge pipe; 200, driving frame; 201, motor; 202, driving gear; 203, water inlet pipe; 204, driven gear; 205, connecting tube; 206, heat transfer pipe; 207, water outlet pipe; 300, vacuum pump; 301, air outlet pipe; 400, slide rail; 401, filter plate; 402, sealing strip; 403, handle. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-3 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] According to one embodiment of the utility model, Figure 1 , Figure 2 and Figure 3As shown: This embodiment provides a waste heat recovery device for comprehensive utilization of steel slag, including a box body 100, an air pump 300 is arranged above one side wall of the box body 100, the input end of the air pump 300 is located inside the box body 100, the output end of the air pump 300 is connected to an air outlet pipe 301, a discharge pipe 102 is arranged at the bottom of the box body 100, and a water valve is arranged at the end of the discharge pipe 102, a driving frame 200 is arranged on the outer wall of the box body 100, a motor 201 is arranged at the center of the outer wall of the driving frame 200, the output end of the motor 201 passes through the outer wall of the driving frame 200, and the output end of the motor 201 is connected to a driving gear 202, through holes are opened on both sides of the surface of the driving frame 200, and a water inlet pipe 203 is arranged through the through holes of the driving frame 200, The water inlet pipe 203 extends to the inside of the box body 100, and a driven gear 204 is arranged on the surface of the water inlet pipe 203, and the driving gear 202 is meshed with the driven gear 204. A connecting tube 205 is installed at the end of the water inlet pipe 203, and a plurality of heat conduction pipes 206 are evenly arranged on the surface of the connecting tube 205. A water outlet pipe 207 is arranged at the end of the connecting tube 205, and a water valve is arranged at the end of the water outlet pipe 207. The staff first puts cold water into the water tank, and then slowly puts the high-temperature steel slag into the water tank. When the high-temperature steel slag contacts the cold water, the cold water will boil. The vacuum pump 300 is started to draw water vapor into the air outlet pipe 301. The air outlet pipe 301 is connected to the external pipeline to transmit the water vapor to other equipment for secondary utilization. At the same time, the staff continues to add water. The steel slag is cooled by soaking it in water, and the cold water exchanges heat with the steel slag. The staff opens the water valve of the discharge pipe 102 to discharge the hot water for recycling. When the steel slag is cooled, the staff inputs cold water at the water inlet pipe 203, and the cold water enters the connecting tube 205 through the water inlet pipe 203, and then enters the heat transfer pipe 206 on the surface through the connecting tube 205. The staff starts the motor 201, so that the motor 201 drives the driving gear 202 to rotate, and the driving gear 202 drives the driven gear 204 to rotate, and the driven gear 204 drives the water inlet pipe 203 and the connecting tube 205 to rotate, and the connecting tube 205 drives the heat transfer pipe 206 to stir the steel slag, so as to improve the cooling efficiency by stirring the steel slag. The internal heat exchanges heat with the water in the heat pipe 206 and the connecting tube 205 at the same time, and finally the water valve of the water outlet pipe 207 is opened to discharge the hot water after heat exchange through the water outlet pipe 207 for recycling. By collecting the heat exchange of water vapor and hot water, not only the waste heat recovery of high-temperature steel slag is realized, but also the steel slag can be cooled, thereby increasing the waste heat recovery amount, which is highly practical; a damping ring is arranged on the inner wall of the box body 100 and corresponds to the position of the water inlet pipe 203, and the outer wall of the water inlet pipe 203 penetrates the damping ring arranged on the inner wall of the box body 100, and the damping ring makes the rotation process of the water inlet pipe 203 and the connecting tube 205 more stable; a sealing cover 101 is arranged on the upper surface of the box body 100 to prevent heat loss;

[0022] According to another embodiment of the present invention, Figure 1 and Figure 3 As shown, slide rails 400 are arranged on both sides below the inner wall of the box body 100, and filter plates 401 are slidably arranged in the slide rails 400. A sealing strip 402 is arranged on one side of the filter plate 401. A through groove is opened on the outer wall of the box body 100 corresponding to the position of the sealing strip 402, and the sealing strip 402 is located in the through groove of the outer wall of the box body 100. A handle 403 is arranged on the surface of the sealing strip 402. The filter plate 401 can filter impurities in hot water to improve the purity of hot water; a filter screen and an activated carbon adsorption layer are arranged in the air outlet pipe 301, so as to filter fine impurities attached to the steel slag.

[0023] The use of this utility model:

[0024] The staff first puts cold water into the water tank, and then slowly puts the high-temperature steel slag into the water tank. When the high-temperature steel slag contacts the cold water, the cold water will boil. The vacuum pump 300 is started to draw water vapor into the outlet pipe 301. The outlet pipe 301 is connected through an external pipeline to transmit the water vapor to other equipment for secondary utilization. At the same time, the staff continues to add water to cool the steel slag by soaking it in water, and the cold water and the steel slag exchange heat. The staff opens the water valve of the discharge pipe 102 to discharge the hot water for recycling. When the steel slag is cooled, the staff inputs cold water at the water inlet pipe 203, and the cold water enters the connecting tube 205 through the water inlet pipe 203, and then enters the surface heat conduction pipe 206 through the connecting tube 205. The staff The operator starts the motor 201, so that the motor 201 drives the driving gear 202 to rotate, the driving gear 202 drives the driven gear 204 to rotate, the driven gear 204 drives the water inlet pipe 203 and the connecting tube 205 to rotate, the connecting tube 205 drives the heat pipe 206 to stir the steel slag, and the cooling efficiency is improved by stirring the steel slag. At the same time, the heat inside the steel slag exchanges heat with the water inside the heat pipe 206 and the connecting tube 205. Finally, the water valve of the water outlet pipe 207 is opened to discharge the hot water after heat exchange through the water outlet pipe 207 for recycling. By collecting the heat exchange of water vapor and hot water, not only the waste heat recovery of the high-temperature steel slag is realized, but also the steel slag can be cooled, thereby increasing the waste heat recovery amount, which is highly practical.

[0025] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A waste heat recovery device for comprehensive utilization of steel slag, comprising a box (100), an air pump (300) is arranged above a side wall of the box (100), an input end of the air pump (300) is located inside the box (100), an output end of the air pump (300) is connected to an air outlet pipe (301), a discharge pipe (102) is arranged at the bottom of the box (100), and a water valve is arranged at the end of the discharge pipe (102), characterized in that: The outer wall of the box body (100) is provided with a driving frame (200), the center of the outer wall of the driving frame (200) is provided with a motor (201), the output end of the motor (201) passes through the outer wall of the driving frame (200), and the output end of the motor (201) is connected to a driving gear (202), through holes are opened on both sides of the surface of the driving frame (200), a water inlet pipe (203) is passed through the through hole of the driving frame (200), and the water inlet pipe (203) extends The water inlet pipe (203) extends into the interior of the box body (100); a driven gear (204) is arranged on the surface of the water inlet pipe (203); the driving gear (202) is meshingly connected with the driven gear (204); a connecting tube (205) is installed at the end of the water inlet pipe (203); a plurality of heat conducting tubes (206) are evenly arranged on the surface of the connecting tube (205); a water outlet pipe (207) is arranged at the end of the connecting tube (205); and a water valve is arranged at the end of the water outlet pipe (207).

2. The waste heat recovery device for comprehensive utilization of steel slag according to claim 1, characterized in that: A damping ring is arranged on the inner wall of the box body (100) at a position corresponding to the water inlet pipe (203), and the outer wall of the water inlet pipe (203) penetrates the damping ring arranged on the inner wall of the box body (100).

3. The waste heat recovery device for comprehensive utilization of steel slag according to claim 1, characterized in that: A sealing cover (101) is provided on the upper surface of the box body (100).

4. The waste heat recovery device for comprehensive utilization of steel slag according to claim 1, characterized in that: Slide rails (400) are arranged on both sides below the inner wall of the box body (100), a filter plate (401) is slidably arranged in the slide rails (400), a sealing strip (402) is arranged on one side of the filter plate (401), a through groove is opened on the outer wall of the box body (100) corresponding to the position of the sealing strip (402), and the sealing strip (402) is located in the through groove of the outer wall of the box body (100), and a handle (403) is arranged on the surface of the sealing strip (402).

5. The waste heat recovery device for comprehensive utilization of steel slag according to claim 1, characterized in that: A filter screen and an activated carbon adsorption layer are arranged in the air outlet pipe (301).

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