Waste heat recovery equipment for carbide slag

Abstract

The utility model discloses waste heat recovery equipment for carbide slag, which belongs to the technical field of waste heat recovery of carbide slag, and is characterized by comprising a heat exchange box, the top of the heat exchange box is communicated with a slag inlet hopper, the top of the slag inlet hopper is rotatably connected with a cover plate through a rotating shaft, and a heat exchange assembly is arranged in an inner cavity of the heat exchange box. A discharging assembly is arranged at the bottom of an inner cavity of the heat exchange box, the heat exchange assembly comprises a fixing support, the fixing support is fixedly connected to the right side of the heat exchange box, the top of the fixing support is fixedly connected with a flow pump, and the right side of the flow pump communicates with a water inlet pipe. The problems that water in a copper box is statically heated through waste heat of the carbide slag, water and heat are not fully contacted through the heating mode, the heat exchange efficiency is low, and the carbide slag needs to be manually taken out after being placed in a heat dissipation box for use, so that replacement of the carbide slag is troublesome are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to calcium carbide slag waste heat recovery technical field, especially in calcium carbide slag's waste heat recovery equipment. BACKGROUND

[0002] A large amount of calcium carbide slag is produced in the calcium carbide production process, and the calcium carbide slag usually has a high temperature and contains considerable waste heat.

[0003] When the waste heat of the calcium carbide slag is recovered, the calcium carbide slag discharged from the calcium carbide furnace is usually placed in the heat dissipation box to heat the water source for air supply, and then the box door of the heat dissipation box is closed to prevent the calcium carbide slag from scalding the operator. At this time, since the thermal pressure in the heat dissipation box is prevented from being too high, a heat dissipation opening is usually formed in the heat dissipation box to reduce the thermal pressure. Since the heat dissipation opening is always open, the calcium carbide slag in the heat dissipation box will be in contact with the external cold air through the heat dissipation opening and quickly cooled down, thereby causing waste of the waste heat of the calcium carbide slag.

[0004] The existing patent (publication number: CN219995941U) belongs to the technical field of calcium carbide slag waste heat recovery equipment, and discloses a calcium carbide slag waste heat recovery device. The left and right ends of the front of the heat dissipation box are movably installed with box doors, and the front of the box door is fixedly installed with a handle. The utility model discloses a semicircular pipe, a stop block and a rigid spring. When the thermal pressure in the heat dissipation box is too high due to the waste heat of the calcium carbide slag, the thermal pressure drives the stop block and stretches the rigid spring, so that the stop block drives the semicircular pipe at the left end to move to the outside of the exhaust pipe, thereby reducing the thermal pressure in the heat dissipation box through the gap between the semicircular pipe and the exhaust pipe. When the thermal pressure in the heat dissipation box is reduced, the rigid spring pulls the stop block to reset and close the exhaust pipe, so that the waste heat of the calcium carbide slag in the heat dissipation box is not easily in contact with the external cold air to cool down and lose, thereby achieving the purpose of reducing the waste of the waste heat of the calcium carbide slag.

[0005] In view of the above problems, the existing patent provides a solution by adding water into the copper box, and then using the waste heat of the calcium carbide slag to statically heat the water in the copper box. This heating method is not sufficient in contact between the water and the heat, and the heat exchange efficiency is low. Moreover, after the calcium carbide slag is placed in the heat dissipation box for use, it needs to be manually taken out, so that it is more troublesome to replace the calcium carbide slag.

[0006] Therefore, a calcium carbide slag waste heat recovery device is proposed. UTILITY MODEL CONTENTS

[0007] The utility model discloses a purpose lies in, provide a kind of calcium carbide slag's waste heat recovery equipment, can solve the current by adding water into copper box, then using calcium carbide slag's waste heat to the water in copper box is heated statically, this kind of heating mode water liquid and heat contact is not sufficient, heat exchange efficiency is lower, and its calcium carbide slag is put into heat sink and used, still need artificial to take out, to replace calcium carbide slag is more troublesome problem.

[0008] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of calcium carbide slag's waste heat recovery equipment, including heat exchange box, the top of the heat exchange box is connected with the residue hopper, the top of the residue hopper is rotatably connected with cover plate by pivot, the inner chamber of the heat exchange box is provided with heat exchange assembly, the bottom of the heat exchange box inner chamber is provided with discharging assembly;

[0009] The heat exchange assembly includes a fixed support, the fixed support is fixedly connected to the right side of the heat exchange box, the top of the fixed support is fixedly connected with a flow pump, the right side of the flow pump is connected with a water inlet pipe, the left side of the flow pump is connected with a heat exchange copper pipe, the other end of the heat exchange copper pipe penetrates to the left side of the heat exchange box and is connected with a water outlet pipe, the top of the water outlet pipe is provided with a water outlet valve, and the heat exchange copper pipe is distributed in the inner chamber of the heat exchange box in a serpentine shape.

[0010] Preferably, the discharging assembly includes a drive motor and a discharging pipe, the drive motor is fixedly connected to the bottom of the right side of the heat exchange box, the right side of the discharging pipe is connected with the bottom of the left side of the heat exchange box, and the output end of the drive motor is fixedly connected with a transmission rod.

[0011] Preferably, the left side of the transmission rod penetrates the heat exchange box and extends to the inner chamber of the discharging pipe, the right side of the surface of the transmission rod is rotatably connected with the inner wall of the heat exchange box through a bearing, and the surface of the transmission rod is fixedly connected with a spiral blade.

[0012] Preferably, the transmission rod and the spiral blade are made of high-strength heat-resistant material, and the left side of the surface of the discharging pipe is connected with a sealing cover through threads.

[0013] Preferably, the left side of the top of the heat exchange box is connected with an exhaust pipe, and the inside of the exhaust pipe is provided with an electric exhaust valve.

[0014] Preferably, the front side of the left side top of the inner wall of the heat exchange box is fixedly connected with a thermal pressure sensor, the front side of the left side top of the heat exchange box is fixedly connected with a support frame, the left side top of the support frame is fixedly connected with a controller used in cooperation with the thermal pressure sensor and the electric exhaust valve.

[0015] Preferably, the front side and the back side of the bottom of the inner chamber of the heat exchange box are both provided with flow guide blocks, and the side close to the inner wall of the heat exchange box of the flow guide block is fixedly connected with the inner wall of the heat exchange box.

[0016] Preferably, the heat exchange box is made of high-strength and heat-insulating material, and support legs are fixedly connected to the four corners of the bottom of the heat exchange box.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1、The heat exchange assembly is arranged, water liquid can be heated in flow, water can have sufficient contact time with calcium carbide slag heat, and heat exchange process is strengthened, so that the waste heat of calcium carbide slag is efficiently absorbed, and overall waste heat recovery efficiency is improved.

[0019] 2、The discharging assembly is arranged, so that the used calcium carbide slag can be conveniently discharged from the heat exchange box, the calcium carbide slag is conveniently replaced, and convenience is brought to users. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure diagram of the waste heat recovery equipment of calcium carbide slag.

[0021] Figure 2 It is a structure diagram of the utility model in another perspective. Figure 1 It is a structure diagram of the utility model in another perspective.

[0022] Figure 3 It is a sectional structure diagram of the cover plate opening and the heat exchange box in the utility model.

[0023] Figure 4 It is a structure diagram of the heat exchange assembly in the utility model.

[0024] Figure 5 It is a structure diagram of the discharging assembly in the utility model.

[0025] In the drawings, 1 is a heat exchange box, 2 is an inlet slag hopper, 3 is a cover plate, 4 is a heat exchange assembly, 401 is a fixed support, 402 is a flow pump, 403 is an inlet water pipe, 404 is a heat exchange copper pipe, 405 is an outlet water pipe, 406 is an outlet water valve, 5 is a discharging assembly, 501 is a driving motor, 502 is a discharging pipe, 503 is a transmission rod, 504 is a spiral blade, 505 is a sealing cover, 6 is an exhaust pipe, 7 is an electric exhaust valve, 8 is a thermal pressure sensor, 9 is a support frame, 10 is a controller, 11 is a flow guide block, and 12 is a support leg. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides technical schemes:

[0028] A kind of calcium carbide slag's waste heat recovery equipment, including heat exchange box 1, the top of heat exchange box 1 is connected with residue hopper 2, the top of residue hopper 2 is rotatably connected with cover plate 3 by rotating shaft, the inner chamber of heat exchange box 1 is provided with heat exchange assembly 4, the bottom of heat exchange box 1 inner chamber is provided with discharging assembly 5;

[0029] Heat exchange assembly 4 includes fixed support 401, fixed support 401 is fixedly connected at the right side of heat exchange box 1, the top of fixed support 401 is fixedly connected with flow pump 402, the right side of flow pump 402 is connected with water inlet pipe 403, the left side of flow pump 402 is connected with heat exchange copper pipe 404, the other end of heat exchange copper pipe 404 penetrates to the left side of heat exchange box 1 and is connected with water outlet pipe 405, the top of water outlet pipe 405 is provided with water outlet valve 406, heat exchange copper pipe 404 is distributed in the inner chamber of heat exchange box 1 in the shape of snake.

[0030] In the embodiment: by setting heat exchange box 1, residue hopper 2, cover plate 3, heat exchange assembly 4 and discharging assembly 5, when using, calcium carbide slag can be added into heat exchange box 1 by residue hopper 2, residue hopper 2 can be closed by cover plate 3, water liquid can be heated by the setting of heat exchange assembly 4, and water and calcium carbide slag heat can have sufficient contact time, and the heat exchange process is strengthened, so that the waste heat of calcium carbide slag is efficiently absorbed, the overall waste heat recovery efficiency is improved, by the setting of discharging assembly 5, calcium carbide slag after use can be conveniently discharged from heat exchange box 1, so that calcium carbide slag is conveniently replaced, and convenience is brought to users.

[0031] Specifically, as shown in Figure 2 , Figure 3 , Figure 5 The discharging assembly 5 includes drive motor 501 and discharging pipe 502, drive motor 501 is fixedly connected at the bottom of the right side of heat exchange box 1, the right side of discharging pipe 502 is communicated with the bottom of the left side of heat exchange box 1, and the output end of drive motor 501 is fixedly connected with transmission rod 503.

[0032] Specifically, as shown in Figure 3 , Figure 5 The left side of transmission rod 503 penetrates heat exchange box 1 and extends to the inner chamber of discharging pipe 502, the right side of the surface of transmission rod 503 is rotatably connected with the inner wall of heat exchange box 1 by bearing, and the surface of transmission rod 503 is fixedly connected with helical blade 504.

[0033] Specifically, as shown in Figure 2 , Figure 5 Transmission rod 503 and helical blade 504 are made of high-strength heat-resistant material, and sealing cover 505 is threadedly connected to the left side of the surface of discharging pipe 502.

[0034] In the embodiment, by setting the driving motor 501, the feeding pipe 502, the transmission rod 503, the spiral blade 504 and the sealing cover 505, when in use, first, the sealing cover 505 on the feeding pipe 502 is opened, then the driving motor 501 is started, the output shaft of the driving motor 501 drives the transmission rod 503 to rotate, the transmission rod 503 drives the spiral blade 504 to rotate, the rotation of the spiral blade 504 can continuously push the carbide slag to move to the left side of the feeding pipe 502, then the carbide slag is discharged from the feeding pipe 502, so that the effect of conveniently discharging the carbide slag from the heat exchange box 1 after use is achieved, thereby conveniently replacing the carbide slag, and convenience is brought to the user.

[0035] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 , the left side of the top of the heat exchange box 1 is communicated with the exhaust pipe 6, and the inside of the exhaust pipe 6 is provided with the electric exhaust valve 7.

[0036] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 , the front side of the left side top of the inner wall of the heat exchange box 1 is fixedly connected with the thermal pressure sensor 8, the front side of the left side top of the heat exchange box 1 is fixedly connected with the support frame 9, and the left side top of the support frame 9 is fixedly connected with the controller 10 used in cooperation with the thermal pressure sensor 8 and the electric exhaust valve 7.

[0037] In the embodiment, by setting the exhaust pipe 6, the electric exhaust valve 7, the thermal pressure sensor 8, the support frame 9 and the controller 10, when in use, the thermal pressure sensor 8 can monitor the thermal pressure inside the heat exchange box 1 in real time, when the thermal pressure is increased to a certain threshold value due to factors such as accumulation of carbide slag residual heat and gas generation, the controller 10 used in cooperation with the thermal pressure sensor 8 and the electric exhaust valve 7 will automatically open the electric exhaust valve 7, then the excess gas is discharged in time through the exhaust pipe 6, the pressure inside the heat exchange box 1 is maintained stable, and the safety hazard caused by excessive pressure is avoided, and the support frame 9 can support and fix the controller 10.

[0038] Specifically, as shown in Figure 3 , the front side and the rear side of the bottom of the inner cavity of the heat exchange box 1 are provided with the flow guide block 11, and the side close to the inner wall of the heat exchange box 1 is fixedly connected with the inner wall of the heat exchange box 1.

[0039] Specifically, as shown in Figure 1 , Figure 2 , the heat exchange box 1 is made of a material with high strength and heat insulation performance, and the support legs 12 are fixedly connected at the four corners of the bottom of the heat exchange box 1.

[0040] In the embodiment: by setting the flow guide block 11, the flow of carbide slag can be guided to the middle position of the inner cavity bottom of the heat exchange box 1, so that the carbide slag is conveniently discharged, the heat exchange box 1 is made of high-strength material with heat insulation performance, the use stability of the heat exchange box 1 can be ensured, the service life is prolonged, and the good heat insulation performance reduces the heat loss to the outside, retains more waste heat in the heat exchange box 1 for recycling, improves the energy utilization rate, and the support leg 12 can stably support the heat exchange box 1.

[0041] Working principle: in use, the carbide slag is added into the heat exchange box 1 through the slag feeding hopper 2, then the cover plate 3 is covered, the water inlet pipe 403 is connected to the water source, then the flow pump 402 is started, the flow pump 402 transmits the water to the heat exchange copper pipe 404 for flowing, at this time, the heat of the carbide slag can heat the water, and since the heat exchange copper pipe 404 is designed in a serpentine shape, the water and the carbide slag heat have sufficient contact time, the heat exchange process is strengthened, the waste heat of the carbide slag is efficiently absorbed, and the overall waste heat recovery efficiency is improved, then the water outlet valve 406 on the water outlet pipe 405 is opened, the heated water is discharged through the water outlet pipe 405, so that the water can be heated and used at any time, and the flow rate and flow of the water can be controlled through the flow pump 402, when the carbide slag needs to be replaced, first, the sealing cover 505 on the discharge pipe 502 is opened, then the driving motor 501 is started, the output shaft of the driving motor 501 drives the transmission rod 503 to rotate, the transmission rod 503 drives the spiral blade 504 to rotate, the spiral blade 504 rotates to continuously push the carbide slag to the left side of the discharge pipe 502, then the carbide slag is discharged from the discharge pipe 502, which can conveniently discharge the used carbide slag from the heat exchange box 1, so that the carbide slag is conveniently replaced, and convenience is brought to the user.

[0042] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A calcium carbide slag waste heat recovery device comprising a heat exchange box (1), characterized in that: The top of the heat exchange box (1) is communicated with a slag feeding hopper (2), the top of the slag feeding hopper (2) is rotatably connected with a cover plate (3) through a rotating shaft, the inner cavity of the heat exchange box (1) is provided with a heat exchange assembly (4), and the bottom of the inner cavity of the heat exchange box (1) is provided with a discharging assembly (5). The heat exchange assembly (4) comprises a fixed support (401) fixedly connected to the right side of the heat exchange box (1), a flow pump (402) fixedly connected to the top of the fixed support (401), a water inlet pipe (403) communicated with the right side of the flow pump (402), a heat exchange copper pipe (404) communicated with the left side of the flow pump (402), an outlet pipe (405) communicated with the other end of the heat exchange copper pipe (404) and penetrating through the left side of the heat exchange box (1), and a water outlet valve (406) arranged at the top of the outlet pipe (405). The heat exchange copper pipe (404) is arranged in a serpentine shape in the inner cavity of the heat exchange box (1).

2. A calcium carbide slag waste heat recovery apparatus according to claim 1, characterized in that: The discharging assembly (5) comprises a driving motor (501) and a discharging pipe (502), the driving motor (501) is fixedly connected to the bottom of the right side of the heat exchange box (1), the right side of the discharging pipe (502) is communicated with the bottom of the left side of the heat exchange box (1), and the output end of the driving motor (501) is fixedly connected with a transmission rod (503).

3. A calcium carbide sludge waste heat recovery apparatus according to claim 2, characterized by: The left side of the transmission rod (503) penetrates through the heat exchange box (1) and extends into the inner cavity of the discharging pipe (502), the right side of the surface of the transmission rod (503) is rotatably connected with the inner wall of the heat exchange box (1) through a bearing, and the surface of the transmission rod (503) is fixedly connected with a spiral blade (504).

4. A calcium carbide slag waste heat recovery apparatus according to claim 3, characterized in that: The transmission rod (503) and the spiral blade (504) are made of high-strength heat-resistant material, and the left side of the surface of the discharging pipe (502) is threadedly connected with a sealing cover (505).

5. A calcium carbide slag waste heat recovery apparatus according to claim 1, characterized by: The left side of the top of the heat exchange box (1) is communicated with an exhaust pipe (6), and the inside of the exhaust pipe (6) is provided with an electric exhaust valve (7).

6. A calcium carbide sludge waste heat recovery apparatus according to claim 5, characterized by: The front side of the left side top of the inner wall of the heat exchange box (1) is fixedly connected with a thermal pressure sensor (8), the front side of the left side top of the heat exchange box (1) is fixedly connected with a support frame (9), and the left side top of the support frame (9) is fixedly connected with a controller (10) used in cooperation with the thermal pressure sensor (8) and the electric exhaust valve (7).

7. A calcium carbide slag waste heat recovery apparatus according to claim 1, characterized in that: The front side and the rear side of the bottom of the inner cavity of the heat exchange box (1) are both provided with a flow guide block (11), and the side close to the inner wall of the heat exchange box (1) of the flow guide block (11) is fixedly connected with the inner wall of the heat exchange box (1).

8. A calcium carbide slag waste heat recovery apparatus according to claim 1, characterized in that: The heat exchange box (1) is made of high-strength and heat-insulating material, and support legs (12) are fixedly connected to the four corners of the bottom of the heat exchange box (1).

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