Cathode carbon waste heat recycling device

Abstract

The utility model relates to a cathode carbon waste heat recycling device which comprises a smoke outlet pipe used for discharging smoke when cathode carbon is calcined. The smoke outlet pipe is fixedly arranged in the waste heat recovery assembly in a penetrating mode, the waste heat recovery assembly is used for recovering waste heat brought out by smoke in the smoke outlet pipe, the waste heat recovery assembly comprises an outer sleeve, a communicating pipe, a water inlet pipe, a first water pump and a recovery box, the communicating pipe and the water inlet pipe are fixedly arranged on the side wall of the outer sleeve, and the water inlet pipe is fixedly connected with a water inlet of the first water pump. The first water pump is fixedly arranged on the recycling box, the outer sleeve is fixedly arranged on the outer wall of the smoke outlet pipe in a sleeving mode, the main water pipe is fixedly arranged on the top of the outer sleeve, and the first valve is fixedly arranged in the main water pipe. Meanwhile, impurities in the flue gas can be fully filtered, and water flow is kept clean.

Description

Technical Field

[0001] The utility model relates to the technical field of cathode carbon production, in particular to a cathode carbon waste heat recovery and utilization device. Background Art

[0002] Cathode carbon is also called carbon cathode. Carbon cathode refers to the inner lining of aluminum electrolytic cell composed of carbon material and its accessories. The parts that constitute the carbon cathode include the side of the electrolytic cell composed of the right carbon block and carbon paste, the artificial legs composed of rammed bottom paste or special-shaped carbon blocks, the bottom of the electrolytic cell composed of the bottom carbon block group and bottom paste, and a layer of carbon pad rammed with bottom paste under the bottom block. Cathode carbon needs to calcine the raw materials during production. A large amount of waste heat will be wasted in the calcination process. In order to reduce waste, it is necessary to use cathode carbon waste heat recovery and utilization device to recycle waste heat, which is conducive to resource utilization;

[0003] After searching, a Chinese patent with announcement number: CN216081029U discloses a cathode carbon waste heat recovery and utilization device. The utility model has the following beneficial technical effects: the cathode carbon generated in the calcining furnace generates excess heat, and the heat flows out from the outer wall of the calcining furnace and the heat sink. The heat sink is connected to the inside of the square ring tube, and the heat is transferred to the inside of the square ring tube. The water pump draws cold water from the cold water tank into the square ring tube, so that the water takes away the heat, and the hot water enters the hot water tank through the outlet pipe for storage. When the hot water temperature is not high, it can return to the cold water tank through the return pipe, and then be heated through the square ring tube. The blower can blow the cold air through the air inlet pipe to between the calcining furnace and the outer shell. The cold air is heated by the calcining furnace, the heat sink and the square ring tube, and becomes hot air. It enters the heat storage device through the outlet pipe to store the heat. This device stores heat through water and air to reduce heat waste.

[0004] This patent can only recover the waste heat around the calcining furnace, but cannot fully recover the waste heat brought out from the exhaust pipe on the calcining furnace, which will lead to the problem of a large amount of heat in the exhaust pipe being wasted, which is not conducive to the utilization of energy. Utility Model Content

[0005] In view of the technical problem that the existing patents can only recover the waste heat around the calcining furnace but cannot fully recover the waste heat brought out from the exhaust pipe on the calcining furnace, resulting in a large amount of heat in the exhaust pipe being wasted, which is not conducive to the utilization of energy, the utility model provides a cathode carbon waste heat recovery and utilization device.

[0006] The technical solution adopted by the utility model is: a cathode carbon waste heat recovery and utilization device, comprising:

[0007] Smoke exhaust pipe, used for exhausting smoke when calcining cathode carbon;

[0008] A waste heat recovery component, wherein the smoke outlet pipe is fixedly installed in the waste heat recovery component, and the waste heat recovery component is used to recover the waste heat brought out by the smoke in the smoke outlet pipe. The waste heat recovery component comprises an outer sleeve, a connecting pipe, a water inlet pipe, a water pump and a recovery box. The connecting pipe and the water inlet pipe are fixedly installed on the side wall of the outer sleeve, and the water inlet pipe is fixedly connected to the water inlet of the water pump. The water pump is fixedly installed on the recovery box, and the outer sleeve is fixedly sleeved on the outer wall of the smoke outlet pipe. A main water pipe is fixedly installed on the top of the outer sleeve, and a valve is fixedly installed in the main water pipe.

[0009] Furthermore, the waste heat recovery component includes a return pipe, one end of which is fixedly connected to the main water pipe, and the other end of which is fixedly penetrated through the top wall of the recovery box, and a valve 2 is fixedly installed in the return pipe.

[0010] Furthermore, a filtering and recovering module is fixedly mounted on the top of the waste heat recovery component, the smoke outlet pipe is fixedly penetrated through the top of the filtering and recovering module, and the filtering and recovering module is used to filter impurities in the smoke.

[0011] Furthermore, the filtering and recovery module comprises a filtering box and a bottom pipe, a water inlet is provided on the top of the filtering box, the bottom pipe is fixedly mounted on the bottom of the filtering box, and a filtering box and a valve three are fixedly mounted inside the bottom pipe.

[0012] Furthermore, the smoke outlet pipe is fixedly mounted on the combustion furnace, the combustion furnace is fixedly connected to the waste heat recovery component, and the combustion furnace is used to calcine cathode carbon.

[0013] Furthermore, the combustion furnace is fixedly provided with a water tank, the bottom of the water tank is fixedly provided with a connecting pipe, the connecting pipe is passed through the bottom of the combustion furnace, and a second water pump is fixedly provided on the connecting pipe.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model can fully recover the heat carried in the flue gas in the smoke outlet pipe by setting up the waste heat recovery component, and can fully recover and utilize the waste heat generated when calcining cathode carbon, thereby reducing the waste of resources.

[0016] 2. The utility model can fully filter the impurities in the flue gas through the setting of the filtering and recovery module, thereby ensuring the cleanliness of the heated water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view of the waste heat recovery component of the utility model;

[0019] Figure 3 It is a cross-sectional structural diagram of the smoke outlet pipe, waste heat recovery component and filter recovery module of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the combustion furnace of the utility model from a top view.

[0021] The markings in the figure are: 1. Smoke outlet pipe; 2. Waste heat recovery component; 201. Outer sleeve; 202. Connecting pipe; 203. Water inlet pipe; 204. Water pump one; 205. Recovery box; 206. Main water pipe; 207. Valve one; 208. Return pipe; 209. Valve two; 3. Filter recovery module; 301. Filter box; 302. Bottom pipe; 303. Water inlet; 304. Filter box; 305. Valve three; 4. Combustion furnace; 401. Water tank; 402. Connecting pipe; 403. Water pump two. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following is combined with Figure 1-4 The utility model is further described.

[0025] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: a cathode carbon waste heat recovery and utilization device.

[0026] The specific technical solution includes a smoke outlet pipe 1 and a waste heat recovery component 2;

[0027] like Figure 2-3As shown, a smoke outlet pipe 1 is used for exhausting smoke when calcining cathode carbon; a waste heat recovery component 2, the smoke outlet pipe 1 is fixedly installed in the waste heat recovery component 2, the waste heat recovery component 2 is used to recover the waste heat brought out by the smoke in the smoke outlet pipe 1, and the waste heat recovery component 2 includes an outer sleeve 201, a connecting pipe 202, a water inlet pipe 203, a water pump 204 and a recovery box 205. The side wall of the outer sleeve 201 is fixedly equipped with a connecting pipe 202 and a water inlet pipe 203, the water inlet pipe 203 is fixedly connected to the water inlet of the water pump 204, the water pump 204 is fixedly installed on the recovery box 205, the outer sleeve 201 is fixedly sleeved on the outer wall of the smoke outlet pipe 1, the top of the outer sleeve 201 is fixedly equipped with a main water pipe 206, and a valve is fixedly installed in the main water pipe 206 One 207, there is a cavity between the outer sleeve 201 and the smoke outlet pipe 1, open valve one 207, inject water from the main water pipe 206, the water flows into the cavity, the smoke enters the smoke outlet pipe 1 from the combustion furnace 4, the smoke in the smoke outlet pipe 1 carries heat, the heat in the smoke can heat the pipe wall of the smoke outlet pipe 1, the smoke outlet pipe 1 after being heated can heat the water flow in the cavity, can recover the heat carried by the smoke, the waste heat recovery component 2 includes a return pipe 208, one end of the return pipe 208 is fixedly connected to the main water pipe 206, the other end of the return pipe 208 is fixedly penetrated through the top wall of the recovery box 205, the return pipe 208 is fixedly installed with a valve two 209, the return pipe 208 can facilitate the secondary heating of the cooled water flow in the recovery box 205.

[0028] When in use, valve 1 207, valve 2 209 and valve 3 305 are all electric valves controlled by the control panel. The return pipe 208 is on a section of the main water pipe 206 between valve 1 207 and the outer casing 201. Close valve 209, open valve 1 207, and supply water to the main water pipe 206 through the water supply device. The water flows through the main water pipe 206 and valve 1 207 into the outer casing 201. The outer casing 201 is in an inverted U shape, and the water flows to the bottom of both sides of the outer casing 201. The through pipe 202 can connect the two bottom ends of the outer sleeve 201, so that the hot water in a section of the outer sleeve 201 at the top of the filter box 301 can be recovered. The cavity between the outer sleeve 201 and the smoke outlet pipe 1 is heated by the smoke, and the cavity can heat the water flow. By starting the water pump 204, the water flow in the water inlet pipe 203 is driven to flow, and the water inlet pipe 203 drives the hot water in the outer sleeve 201 to flow. The hot water enters the recovery box 205 through the water inlet pipe 203 and the water pump 204, and the hot water can be used.

[0029] A temperature sensor is installed in the recycling box 205. When it is detected that the water flow in the recycling box 205 becomes cold, the temperature sensor transmits data to the control panel. The control panel controls valve 1 207 to close and valve 2 209 to open, and starts water pump 1 204 to drive the air flow in the water inlet pipe 203. The water inlet pipe 203 drives the air flow in the outer sleeve 201. The outer sleeve 201 drives the air flow in a section of the main water pipe 206 between valve 1 207 and the outer sleeve 201. This section of air drives the air flow in the return pipe 208. The return pipe 208 draws water from the recycling box 205. The water flows into the outer sleeve 201 through the return pipe 208, valve 2 209, and the main water pipe 206. The water flow is heated again and then enters the recycling box 205 through the water inlet pipe 203 and water pump 1 204, so as to maintain the temperature of the water flow.

[0030] like Figure 3 As shown, a filtering recovery module 3 is fixedly installed on the top of the waste heat recovery component 2, and the smoke outlet pipe 1 is fixedly installed on the top of the filtering recovery module 3. The filtering recovery module 3 is used to filter impurities in the flue gas. The filtering recovery module 3 includes a filtering box 301 and a bottom pipe 302. A water injection port 303 is opened on the top of the filtering box 301, and the bottom pipe 302 is fixedly installed on the bottom of the filtering box 301. A filtering box 304 and a valve 305 are fixedly installed in the bottom pipe 302. The bottom pipe 302 is fixedly connected to the recovery box 205, which can facilitate water supply to the recovery box 205.

[0031] The smoke is injected into the filter box 301 from the water inlet 303, and the smoke in the smoke outlet pipe 1 enters the water inside the filter box 301. The heat in the smoke is first recovered by the waste heat recovery component 2. After the waste heat recovery component 2 recovers, there is residual heat in the smoke. The smoke is mixed with the water flow, and the remaining heat in the smoke heats the water flow. The heated water flow contains impurities in the smoke. After the water flow in the filter box 301 is heated to the set temperature, the control panel controls the valve three 305 to open, and the heated water flow enters the bottom pipe 302, and enters the recovery box 205 through the filter box 304 and valve three 305 in the bottom pipe 302. The filter box 304 is equipped with activated carbon, which can filter the water flow.

[0032] like Figure 4 As shown, the smoke outlet pipe 1 is fixedly mounted on the combustion furnace 4, the combustion furnace 4 is fixedly connected to the waste heat recovery component 2, the combustion furnace 4 is used to calcine cathode carbon, the combustion furnace 4 is fixedly mounted with a water tank 401, the water tank 401 surrounds the inner wall and the outer wall of the combustion furnace 4, can fully contact with the inner wall of the combustion furnace 4, and can better transfer heat, the bottom of the water tank 401 is fixedly mounted with a connecting pipe 402, the connecting pipe 402 is passed through the bottom of the combustion furnace 4, and a water pump 403 is fixedly mounted on the connecting pipe 402.

[0033] When burning in the combustion furnace 4, the inner wall of the combustion furnace 4 will be heated, and the inner wall of the combustion furnace 4 will heat the side wall of the water tank 401. Water flow is injected from the top of the water tank 401, and the side wall of the water tank 401 heats the water flow. The heated water flow enters the connecting pipe 402, and the hot water in the connecting pipe 402 is driven to flow by starting the water pump 2 403. The hot water enters the recovery tank 205 through the water pump 2 403.

[0034] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0035] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cathode carbon waste heat recovery and utilization device, characterized in that: include: A smoke exhaust pipe (1) is used to exhaust smoke when calcining cathode carbon; A waste heat recovery component (2), wherein the smoke outlet pipe (1) is fixedly installed in the waste heat recovery component (2), and the waste heat recovery component (2) is used to recover the waste heat brought out by the smoke in the smoke outlet pipe (1). The waste heat recovery component (2) comprises an outer sleeve (201), a connecting pipe (202), a water inlet pipe (203), a water pump (204) and a recovery box (205). The connecting pipe (202) and the water inlet pipe (203) are fixedly installed on the side wall of the outer sleeve (201), the water inlet pipe (203) is fixedly connected to the water inlet of the water pump (204), the water pump (204) is fixedly installed on the recovery box (205), the outer sleeve (201) is fixedly sleeved on the outer wall of the smoke outlet pipe (1), the top of the outer sleeve (201) is fixedly installed with a main water pipe (206), and a valve (207) is fixedly installed in the main water pipe (206).

2. A cathode carbon waste heat recovery and utilization device according to claim 1, characterized in that: The waste heat recovery component (2) comprises a return pipe (208), one end of which is fixedly connected to the main water pipe (206), and the other end of which is fixedly penetrated through the top wall of the recovery box (205), and a second valve (209) is fixedly installed in the return pipe (208).

3. The cathode carbon waste heat recovery and utilization device according to claim 1 is characterized in that: A filtering recovery module (3) is fixedly mounted on the top of the waste heat recovery component (2), and the smoke outlet pipe (1) is fixedly penetrated through the top of the filtering recovery module (3). The filtering recovery module (3) is used to filter impurities in the smoke.

4. The cathode carbon waste heat recovery and utilization device according to claim 3 is characterized in that: The filtering and recovery module (3) comprises a filtering box (301) and a bottom pipe (302); a water injection port (303) is provided on the top of the filtering box (301); the bottom pipe (302) is fixedly mounted on the bottom of the filtering box (301); and a filtering box (304) and a valve three (305) are fixedly mounted inside the bottom pipe (302).

5. The cathode carbon waste heat recovery and utilization device according to claim 1 is characterized in that: The smoke outlet pipe (1) is fixedly mounted on the combustion furnace (4), the combustion furnace (4) is fixedly connected to the waste heat recovery component (2), and the combustion furnace (4) is used to calcine cathode carbon.

6. The cathode carbon waste heat recovery and utilization device according to claim 5 is characterized in that: The combustion furnace (4) is fixedly provided with a water tank (401), the bottom of the water tank (401) is fixedly provided with a connecting pipe (402), the connecting pipe (402) is passed through the bottom of the combustion furnace (4), and a water pump 2 (403) is fixedly provided on the connecting pipe (402).

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