Waste heat recovery system for coal chemical industry

Abstract

The invention discloses a coal chemical industry waste heat recovery system, and belongs to the field of coal chemical industry, the coal chemical industry waste heat recovery system comprises a heat preservation shell, a recovery part, a waste liquid transduction part and a waste residue transduction part are fixedly mounted in the heat preservation shell, the recovery part is used for heat exchange between gas and water, and the waste liquid transduction part is used for heat exchange between gas and liquid; the waste residue energy conversion component is used for heat exchange between gas and solid, the recycling component comprises an energy conversion shell, three evenly-distributed first communicating pieces are fixedly installed on one side of the energy conversion shell, and three second communicating pieces corresponding to the first communicating pieces are fixedly installed on the side, away from the first communicating pieces, of the energy conversion shell. According to the waste heat recovery device, by arranging the recovery component, the waste liquid transduction component and the waste residue transduction component, waste heat recovery can be conducted on various waste materials generated in the coal chemical industry at the same time, waste heat recovery is conducted on a certain waste material, the waste heat recovery efficiency is higher, heat pollution of the waste materials in the coal chemical industry is reduced, and practicability is improved.

Description

Technical Field

[0001] The present invention relates to the field of coal chemical industry, and more specifically, to a waste heat recovery system for coal chemical industry. Background Art

[0002] Coal chemical industry refers to the process of using coal as raw material and converting it into gas, liquid, solid fuel and chemicals through chemical processing; coal chemical technology mainly includes coal gasification, liquefaction, dry distillation, tar processing and calcium carbide acetylene chemical industry;

[0003] There are many kinds of wastes generated in the coal chemical process, which mainly include solid waste, liquid waste and gaseous waste. One of the main solid wastes generated in coal chemical production includes metallurgical slag, coal slag, slag, gasification ash, etc. Among them, gasification ash accounts for more than 90% of the total waste slag. The waste slag contains a large amount of heavy metals, fluorides, radioactive substances and other harmful substances, which have an impact on the environment and human health that cannot be ignored. In the process of coal tar, coal gas and other processes in coal chemical production, a large amount of waste carbon is generated, which contains more than 60% carbon. Waste carbon not only causes waste of resources, but also pollutes the environment.

[0004] Liquid waste generated in the coal chemical process mainly includes wastewater, waste liquid, etc. These wastewaters may contain various organic matter, inorganic salts, heavy metals and other pollutants, which need to be treated before discharge or reuse;

[0005] The coal chemical process also produces a large amount of gaseous waste, mainly including coal gas, coke oven gas, synthesis gas, etc. These gases may contain harmful gases such as sulfide, nitrogen oxides, carbon monoxide, etc., which need to be purified before they can be discharged or used;

[0006] The three types of waste, solid, liquid and gas, produced by coal chemical industry all contain a large amount of heat energy. If they are directly exposed to the air, a large amount of heat energy will be lost in the air, causing a greenhouse effect and energy waste. Therefore, it is necessary to use a waste heat recovery device to recover this part of heat energy and convert it into usable energy. However, most traditional waste heat recovery devices can only recover heat from a single form of waste, and cannot recover heat from multiple forms of waste, solid, liquid and gas at the same time.

[0007] In view of this, in order to address the above-mentioned deficiencies, the present invention has improved and optimized the prior art and developed a coal chemical waste heat recovery system. Summary of the invention

[0008] In view of the problems existing in the prior art, the purpose of the present invention is to provide a coal chemical waste heat recovery system, which can realize waste heat recovery of waste materials in different states at the same time, not limited to the state of the waste materials.

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] A coal chemical waste heat recovery system, comprising a heat-insulating shell, wherein a recovery component, a waste liquid energy conversion component, and a waste residue energy conversion component are fixedly installed inside the heat-insulating shell, wherein the recovery component is used for heat exchange between gas and water, the waste liquid energy conversion component is used for heat exchange between gas and liquid, and the waste residue energy conversion component is used for heat exchange between gas and solid;

[0011] The recovery component includes a transducer shell, one side of the transducer shell is fixedly installed with three evenly distributed first connecting pieces, and the side of the transducer shell away from the first connecting piece is fixedly installed with three second connecting pieces corresponding to the first connecting pieces, and three groups of first heat exchange tubes corresponding to the first connecting pieces and the second connecting pieces are fixedly installed inside the transducer shell, and each group of the first heat exchange tubes is provided with a plurality of them, and both ends of the first heat exchange tubes are respectively connected with the corresponding first connecting pieces and the second connecting pieces, and the input end of the waste liquid transducer component is connected with the first connecting piece at the far right through a pipeline, and an air intake pipe is fixedly installed on the second connecting piece at the far right, and the output end of the waste liquid transducer component is connected with the second connecting piece at the far left through a pipeline, and the first connecting piece at the far left is connected with the input end of the waste residue transducer component through the second ventilation pipe, and the output end of the waste residue transducer component is connected with the second connecting piece in the middle through the third ventilation pipe, and the first connecting piece in the middle is connected with the waste liquid transducer component through the first ventilation pipe.

[0012] Further, the waste liquid energy conversion component includes a liquid reservoir, the interior of the liquid reservoir has a first chamber and a second chamber, a one-way valve connecting the liquid reservoir and the first chamber is fixedly installed inside the liquid reservoir, a third connecting piece is fixedly installed on the side of the outside of the liquid reservoir corresponding to the first connecting piece, and a fourth connecting piece is fixedly installed on the side of the outside of the liquid reservoir away from the third connecting piece, the third connecting piece is connected to a first connecting piece at the far right end through a pipeline, and the fourth connecting piece is connected to a second connecting piece at the far left end through a pipeline, a plurality of evenly distributed second heat exchange tubes are fixedly installed inside the liquid reservoir, the second heat exchange tubes pass through the first chamber and the second chamber, and the two ends of the liquid reservoir are respectively connected to the third connecting piece and the fourth connecting piece.

[0013] Furthermore, an electrically controlled valve connected to the second chamber is fixedly installed on the external upper end of the liquid storage tank, a pressure relief valve connected to the second chamber is fixedly installed on the external end of the liquid storage tank, a liquid inlet pipe connected to the first chamber is fixedly installed on the external end of the liquid storage tank, and the bottom end of the first ventilation pipe is connected to the internal bottom end of the second chamber through a pipeline.

[0014] Furthermore, the waste residue energy conversion component includes a sealed shell, a bearing shell is fixedly installed on the upper surface of the sealed shell, a first sliding plate is slidably installed on the inner lower surface of the sealed shell, a movable plate is slidably installed on the inner upper surface of the sealed shell, the first sliding plate is slidably installed on the lower surface of the movable plate, and the upper surfaces of the sealed shell and the movable plate are both provided with a plurality of evenly distributed through holes.

[0015] Furthermore, a plurality of evenly distributed augers are rotatably installed inside the support shell, a plurality of discharge ports corresponding to the augers are opened on one side of the support shell, a discharge hopper is fixedly installed on the side of the outside of the support shell corresponding to the discharge port, a matching component is installed on the side of the support shell away from the discharge hopper, the second ventilation pipe is fixedly installed on the end of the sealing shell, and the third ventilation pipe is fixedly installed on the upper end of the support shell.

[0016] Furthermore, the mating component includes a fixed frame, a long slide plate is provided on the internal sliding card of the fixed frame, a plurality of limiting components corresponding to the auger are fixedly installed on the side wall of the bearing shell away from the discharge port, a plurality of rotating plates corresponding to the limiting components are rotatably installed on the long slide plate, a spring is connected between the rotating plate and the long slide plate, a spring telescopic rod is fixedly connected between the fixed frame and the long slide plate, and a baffle is integrally formed at one end of the long slide plate.

[0017] Furthermore, the limiting component includes a sleeve, a center piece is rotatably installed inside the sleeve, a plurality of evenly distributed pawls are fixedly installed on the outer ring of the center piece, a plurality of latch teeth corresponding to the pawls are integrally formed on the inner ring of the sleeve, the middle part of the auger is fixedly installed on the center piece, a rotating wheel is fixedly installed on the side of the center piece away from the auger, and the outer ring of the rotating wheel also has a plurality of evenly distributed latch teeth through integral molding.

[0018] Furthermore, a through groove is provided on a side of the sealing shell away from the second ventilation pipe, the movable plate is slidably mounted inside the through groove, a second sliding plate is fixedly mounted on a lower surface of the movable plate away from the first sliding plate, the second sliding plate is slidably mounted inside the sealing shell, a plurality of evenly distributed first spring members are fixedly mounted on an end of the outer surface of the sealing shell away from the first sliding plate, the first spring member is fixedly connected to the second sliding plate, a plurality of evenly distributed second spring members are fixedly mounted on an outer surface of the sealing shell away from the first spring member, and the second spring member is fixedly connected to the first sliding plate.

[0019] Furthermore, a feed pipe for conveying waste slag is fixedly mounted on one side of the bearing shell, and a mesh plate is fixedly mounted inside the through hole on the sealing shell.

[0020] Furthermore, the air inlet pipe, water inlet pipe, water outlet pipe, steam pipe, discharge hopper, electric control valve, pressure relief valve, water outlet pipe and feed pipe all extend to the outside of the heat-insulating shell.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The device of this scheme is equipped with recovery components, waste liquid energy conversion components, and waste residue energy conversion components, so that the device can simultaneously recover waste heat from various forms of waste generated by coal chemical industry, and is not limited to the waste heat recovery of a certain form of waste. The waste heat recovery efficiency is higher, and the thermal pollution of coal chemical waste is reduced.

[0023] 2. This solution sets up recovery components and opens and closes the water outlet pipe and steam pipe so that the device can be used to produce steam or to heat cold water. As a result, the device can not only use the waste heat for the workers' living, but also use the waste heat as a power source for generating electricity.

[0024] 3. This scheme sets up a waste liquid energy conversion component. When the waste gas passes through the waste slag energy conversion component, it will exchange heat inside the recovery component. After the heat exchange, it will re-enter the first chamber. Because the waste slag energy conversion component stores waste slag, when the waste gas passes through the waste slag energy conversion component, part of the slag will be driven and transported, so that the waste gas finally passes through the low-temperature waste liquid inside the first chamber, which can not only make this part of the slag absorbed by the waste liquid, but also make part of the harmful gas in the waste gas absorbed by the waste liquid, thereby reducing the content of harmful gases in the waste gas and facilitating the subsequent exhaust gas treatment. If the heat energy in the waste gas is not completely absorbed by the recovery component, a secondary heat exchange can be carried out inside the first chamber, so that the heat energy utilization is more complete, and at the same time, the automatic unloading of the waste liquid energy conversion component can be realized.

[0025] 4. This scheme and this device are equipped with matching parts. When the gas is continuously transported, it will drive the moving plate to intermittently push the long slide plate, so that the rotating wheel can drive the auger to rotate intermittently, thereby realizing automatic unloading of the waste slag. When unloading, the low-temperature waste slag below will be unloaded first, making the device more efficient and more automated, thereby improving efficiency.

[0026] 5. Through reasonable layout, this device first allows waste gas and waste liquid to exchange heat with water, and then exchanges heat with waste slag. It can first use the waste material with lower temperature to preheat the water, and then use the heat generated by the high-temperature waste slag to make the water boil quickly, thereby generating a large amount of water vapor more quickly, making full use of the waste heat of the waste, improving the heat exchange capacity, and generating more energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the coal chemical waste heat recovery system of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure inside the heat-insulating shell of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the recycling component in the present invention;

[0030] Figure 4 It is a schematic structural diagram of the waste liquid energy conversion component in the present invention;

[0031] Figure 5 It is a schematic diagram of the cross-section structure of the liquid storage tank in the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the waste residue energy conversion component in the present invention;

[0033] Figure 7 It is a schematic diagram of the connection structure between the sealing housing and the moving plate in the present invention;

[0034] Figure 8 It is a schematic diagram of the cross-section structure of the sealing shell in the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the movable plate in the present invention;

[0036] Fig.10 It is a structural schematic diagram of the limiting component in the present invention;

[0037] Fig.11 It is a schematic diagram of the structure of the matching parts in the present invention.

[0038] Description of the numbers in the figure:

[0039] 1. Insulation shell; 2. Recovery component; 3. Waste liquid energy conversion component; 4. Waste residue energy conversion component; 21. Energy conversion shell; 22. First connecting piece; 23. Second connecting piece; 24. Air inlet pipe; 25. First heat exchange pipe; 26. Water inlet pipe; 27. Water outlet pipe; 28. Steam pipe; 31. Liquid storage tank; 32. First chamber; 33. Second chamber; 34. Third connecting piece; 35. Fourth connecting piece; 36. Electric control valve; 37. Pressure relief valve; 38. Liquid inlet pipe; 39. First ventilation pipe; 41. Sealing shell; 42. Load-bearing shell; 43. Discharge hopper; 44. Matching component; 45. Second ventilation pipe; 46, third ventilation pipe; 47, movable plate; 48, auger; 49, limiting component; 311, second heat exchange tube; 312, one-way valve; 410, first sliding plate; 411, through groove; 412, first spring member; 413, second spring member; 414, mesh plate; 415, discharge port; 416, feed pipe; 441, fixed frame; 442, long slide plate; 443, rotating plate; 444, spring telescopic rod; 445, baffle; 471, second sliding plate; 472, through hole; 491, sleeve; 492, center member; 493, ratchet; 494, rotating wheel. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 11A coal chemical waste heat recovery system comprises a heat-insulating shell 1, wherein a recovery component 2, a waste liquid energy conversion component 3, and a waste residue energy conversion component 4 are fixedly installed inside the heat-insulating shell 1, wherein the recovery component 2 is used for heat exchange between gas and water, the waste liquid energy conversion component 3 is used for heat exchange between gas and liquid, and the waste residue energy conversion component 4 is used for heat exchange between gas and solid, and the recovery component 2 comprises a transducer shell 21, wherein three evenly distributed first connecting pieces 22 are fixedly installed on one side of the transducer shell 21, and three second connecting pieces 23 corresponding to the first connecting pieces 22 are fixedly installed on the side of the transducer shell 21 away from the first connecting pieces 22, and three groups of first heat exchange tubes 25 corresponding to the first connecting pieces 22 and the second connecting pieces 23 are fixedly installed inside the transducer shell 21, Each group of first heat exchange tubes 25 is provided with a plurality of them, and the two ends of the first heat exchange tubes 25 are respectively connected with the corresponding first connecting pieces 22 and second connecting pieces 23, the input end of the waste liquid energy conversion component 3 is connected with the first connecting piece 22 at the far right through a pipeline, and the air inlet pipe 24 is fixedly installed on the second connecting piece 23 at the far right, the output end of the waste liquid energy conversion component 3 is connected with the second connecting piece 23 at the far left through a pipeline, the first connecting piece 22 at the far left is connected with the input end of the waste residue energy conversion component 4 through the second ventilation pipe 45, the output end of the waste residue energy conversion component 4 is connected with the middle second connecting piece 23 through the third ventilation pipe 46, and the middle first connecting piece 22 is connected with the waste liquid energy conversion component 3 through the first ventilation pipe 39.

[0042] Before actual use, pure water is first poured into the interior of the transducer shell 21 through the water inlet pipe 26 so that the interior of the transducer shell 21 is filled with pure water, and then the exhaust gas is introduced into the interior of the second connecting piece 23 at the far right through the air inlet pipe 24. The exhaust gas will pass through one of the fourth connecting pieces 35. The exhaust gas temperature is relatively high at this time. When the exhaust gas passes through the first heat exchange pipe 25, it will exchange heat with the pure water inside the transducer shell 21. After the heat exchange, the exhaust gas will be transported to the interior of the waste liquid transducer component 3 through the first connecting piece 22 at the far right. The exhaust gas temperature is relatively low at this time. The waste liquid transducer component 3 stores waste liquid generated by coal chemical industry. When the low-temperature exhaust gas passes through the waste liquid transducer component 3, it will be reheated by the high-temperature waste liquid inside it, and then turned into high-temperature exhaust gas again. The high-temperature exhaust gas will re-enter the second connecting piece 23 at the far left through the pipeline, and pass through the leftmost The second connecting piece 23 passes through one group of first heat exchange tubes 25 and is discharged through the leftmost first connecting piece 22, so that the high-temperature exhaust gas exchanges heat with the pure water inside the energy conversion shell 21 again. At this time, the high-temperature exhaust gas becomes low-temperature exhaust gas again. The low-temperature exhaust gas will enter the interior of the waste slag energy conversion component 4 through the second ventilation pipe 45. The interior of the waste slag energy conversion component 4 stores high-temperature waste slag produced by coal chemical industry. At this time, the low-temperature exhaust gas will pass through the high-temperature waste slag, and after being heated by the high-temperature waste slag, it will return to the interior of the middle second connecting piece 23 through the third ventilation pipe 46, and then pass through one group of first heat exchange tubes 25 and enter the interior of the first connecting piece 22. In this process, the high-temperature exhaust gas will exchange heat with the pure water inside the energy conversion shell 21 again, and finally the low-temperature exhaust gas will be discharged into the interior of the waste liquid energy conversion component 3 through the first ventilation pipe 39 and discharged through the waste liquid energy conversion component 3 discharge device.

[0043] Furthermore, by setting up a recovery component 2, a waste liquid energy conversion component 3, and a waste residue energy conversion component 4, the device can simultaneously recover waste heat from waste materials in different states generated by coal chemical industry, and is not limited to recovering waste heat from a certain type of waste material. The waste heat recovery efficiency is higher, the thermal pollution of coal chemical waste is reduced, and the practicality is improved.

[0044] When in use, if the steam pipe 28 is closed, cold water is continuously added to the inside of the transducer shell 21 through the water inlet pipe 26, and the water will pass through the transducer shell 21 and be output from the transducer shell 21 through the water outlet pipe 27. In this process, the cold water will be heated into hot water, so that hot water can be obtained, which can be used as living water for the workers. If the steam pipe 28 is opened and the water outlet pipe 27 is closed, and pure water is continuously added to the inside of the transducer shell 21 through the water inlet pipe 26, the water flow inside the transducer shell 21 will be continuously heated and then boiled, and the steam generated will enter the inside of the steam pipe 28, and the power generated by the steam can be used to generate electricity, so that the device can not only use the waste heat for the workers' daily life, but also use the waste heat as a power source for power generation.

[0045] The waste liquid transducer component 3 includes a liquid reservoir 31, which has a first chamber 32 and a second chamber 33 inside. A one-way valve 312 connecting the liquid reservoir 31 and the first chamber 32 is fixedly installed inside the liquid reservoir 31, a third connecting piece 34 is fixedly installed on the side of the outside of the liquid reservoir 31 corresponding to the first connecting piece 22, and a fourth connecting piece 35 is fixedly installed on the side of the outside of the liquid reservoir 31 away from the third connecting piece 34. The third connecting piece 34 is connected to the rightmost first connecting piece 22 through a pipeline, and the fourth connecting piece 35 is connected to the leftmost second connecting piece 23 through a pipeline. A plurality of evenly distributed second heat exchange tubes 311 are fixedly installed inside the liquid reservoir 31, and the second heat exchange tubes 311 pass through the first chamber 32 and the second chamber 33. The two ends of the liquid reservoir 31 are respectively connected to the third connecting piece 34 and the fourth connecting piece 35.

[0046] Before use, fill the first chamber 32 and the second chamber 33 with waste liquid through the liquid inlet pipe 38, and then start the device. The low-temperature exhaust gas will pass through the third connecting piece 34, the second heat exchange tube 311, and the fourth connecting piece 35 and then return to the second connecting piece 23 at the far left, and re-exchange heat in the energy conversion shell 21. The second chamber 33 stores low-temperature waste liquid, and the first chamber 32 stores high-temperature waste liquid. The low-temperature exhaust gas will first pass through the second chamber 33 to be preheated by the low-temperature waste liquid, and then be heated by the high-temperature waste liquid and return to the recovery component 2 for heat exchange.

[0047] An electrically controlled valve 36 communicating with the second chamber 33 is fixedly installed on the external upper end of the liquid storage tank 31, a pressure relief valve 37 communicating with the second chamber 33 is fixedly installed on the external end of the liquid storage tank 31, a liquid inlet pipe 38 communicating with the first chamber 32 is fixedly installed on the external end of the liquid storage tank 31, and the bottom end of the first ventilation pipe 39 is connected to the internal bottom end of the second chamber 33 through a pipeline.

[0048] After the waste gas has passed through the waste liquid energy conversion component 3 for heat exchange, it will return to the recovery component 2, and then be transported to the inner bottom of the second chamber 33 through the first ventilation pipe 39. Since the density of the waste gas is less than that of the waste liquid, the waste gas will float upward, so that the waste gas will gather at the top of the second chamber 33. When the pressure generated by the waste gas exceeds the pressure threshold of the pressure relief valve 37, the low-temperature waste liquid inside the second chamber 33 will be squeezed out of the pressure relief valve 37 as the waste gas continues to enter the second chamber 33. A liquid level sensor is installed inside the second chamber 33. When the liquid level drops to the threshold, At this time, the electric control valve 36 will open, and the waste gas inside the second chamber 33 will be discharged from the second chamber 33. At this time, high-temperature waste liquid will continue to be input into the first chamber 32 through the liquid inlet pipe 38. Because the interior of the second chamber 33 loses pressure, when liquid is input into the first chamber 32, a part of the waste liquid that has been heat exchanged will be squeezed into the interior of the second chamber 33 through the one-way valve 312 to become new low-temperature waste liquid. When the liquid level exceeds the maximum threshold of the liquid level sensor, the liquid inlet pipe 38 stops inputting, and the electric control valve 36 is closed again to facilitate the next work.

[0049] By setting up the waste liquid energy conversion component 3, when the waste gas passes through the waste slag energy conversion component 4, it will exchange heat inside the recovery component 2, and will re-enter the first chamber 32 after the heat exchange is completed. Because the waste slag energy conversion component 4 stores waste slag, when the waste gas passes through the waste slag energy conversion component 4, a part of the slag will be driven and transported, so that the waste gas finally passes through the low-temperature waste liquid inside the first chamber 32, which can not only make this part of the slag absorbed by the waste liquid, but also make a part of the harmful gas in the waste gas absorbed by the waste liquid, thereby reducing the harmful gas content in the waste gas and facilitating the subsequent exhaust gas treatment. If the heat energy in the waste gas is not completely absorbed by the recovery component 2, a secondary heat exchange can be carried out inside the first chamber 32, so that the heat energy utilization is more complete, and at the same time, the automatic unloading of the waste liquid energy conversion component 3 can be realized.

[0050] The waste slag energy conversion component 4 includes a sealed shell 41, a feed pipe 416 for conveying waste slag is fixedly installed on one side of the bearing shell 42, the bearing shell 42 is fixedly installed on the upper surface of the sealed shell 41, a first sliding plate 410 is slidably installed on the inner lower surface of the sealed shell 41, a moving plate 47 is slidably installed on the inner upper surface of the sealed shell 41, the first sliding plate 410 is slidably installed on the lower surface of the moving plate 47, a plurality of evenly distributed through holes 472 are opened on the upper surfaces of the sealed shell 41 and the moving plate 47, a mesh plate 414 is fixedly installed inside the through holes 472 on the sealed shell 41, and a side of the sealed shell 41 away from the second ventilation pipe 45 is opened. A through slot 411 is provided, and a movable plate 47 is slidably mounted inside the through slot 411; a second sliding plate 471 is fixedly mounted on a lower surface of the movable plate 47 on a side away from the first sliding plate 410; the second sliding plate 471 is slidably mounted inside the sealed shell 41; a plurality of evenly distributed first spring members 412 are fixedly mounted on an end of the outer surface of the sealed shell 41 away from the first sliding plate 410; the first spring member 412 is fixedly connected to the second sliding plate 471; a plurality of evenly distributed second spring members 413 are fixedly mounted on an outer surface of the sealed shell 41 on a side away from the first spring member 412; the second spring member 413 is fixedly connected to the first sliding plate 410.

[0051] Before use, waste slag is continuously transported to the interior of the supporting shell 42 through the third ventilation pipe 46, and the low-temperature exhaust gas is transported to the interior of the sealed shell 41 by the second ventilation pipe 45. When the gas enters the sealed shell 41, the exhaust gas will be compressed due to the action of the second spring member 413. When the exhaust gas is continuously input, the pressure generated by the exhaust gas will break through the pulling force of the second spring member 413. At this time, the exhaust gas will push the first sliding plate 410 to move. When the exhaust gas inside the sealed shell 41 accumulates more and more, the first sliding plate 410 will fit with the second sliding plate 471. Under the continuous push of the exhaust gas, the first sliding plate 410 will drive the second sliding plate 471 to move, and then the second sliding plate 471 will drive the moving plate 47 to move. At this time, a section of the moving plate 47 will be pushed out of the through groove 411. In the initial state, the through hole 472 on the sealed shell 41 is in contact with the moving plate 471. The through holes 472 on the movable plate 47 are staggered with each other, so that the sealing shell 41 is in a closed state as a whole. When the movable plate 47 is pushed to the maximum position, the through holes 472 on the movable plate 47 coincide with the through holes 472 on the sealing shell 41, and the gas inside the sealing shell 41 will quickly pass through the through holes 472 to enter the interior of the bearing shell 42. The mesh plate 414 can prevent waste slag from falling into the interior of the sealing shell 41. When the gas quickly flows into the interior of the bearing shell 42, the pressure inside the sealing shell 41 will drop rapidly, and then under the action of the second spring member 413, the first sliding plate 410 will move away from the second sliding plate 471, and under the action of the first spring member 412, the second sliding plate 471 will also be pushed, so that the through holes 472 on the sealing shell 41 and the through holes 472 on the movable plate 47 are staggered again, and then work reciprocatingly.

[0052] A plurality of evenly distributed augers 48 are rotatably mounted inside the bearing shell 42, a plurality of discharge ports 415 corresponding to the augers 48 are opened on one side of the bearing shell 42, a discharge hopper 43 is fixedly mounted on the side of the bearing shell 42 corresponding to the discharge port 415, a matching component 44 is mounted on the side of the bearing shell 42 away from the discharge hopper 43, a second ventilation pipe 45 is fixedly mounted on the end of the sealing shell 41, a third ventilation pipe 46 is fixedly mounted on the upper end of the bearing shell 42, the matching component 44 includes a fixing frame 441, a long slide plate 442 is provided for sliding inside the fixing frame 441, a plurality of limiting components 49 corresponding to the augers 48 are fixedly mounted on a side wall of the bearing shell 42 away from the discharge port 415, a plurality of limiting components 49 corresponding to the limit components 49 are rotatably mounted on the long slide plate 442 The positioning component 49 corresponds to a rotating plate 443, a spring is connected between the rotating plate 443 and the long slide 442, a spring telescopic rod 444 is fixedly connected between the fixed frame 441 and the long slide 442, a baffle 445 is integrally formed at one end of the long slide 442, the limiting component 49 includes a sleeve 491, a center piece 492 is rotatably installed inside the sleeve 491, a plurality of evenly distributed pawls 493 are fixedly installed on the outer ring of the center piece 492, a plurality of latch teeth corresponding to the pawls 493 are integrally formed at the inner ring of the sleeve 491, the middle part of the auger 48 is fixedly installed on the center piece 492, a rotating wheel 494 is fixedly installed on the side of the center piece 492 away from the auger 48, and a plurality of evenly distributed latch teeth are also integrally formed at the outer ring of the rotating wheel 494.

[0053] When a section of the movable plate 47 extends out of the sealed shell 41, the movable plate 47 will push the baffle plate 445 to move, and then the baffle plate 445 will drive the long slide plate 442 to move, and the movement of the long slide plate 442 will drive the rotating plate 443 thereon to move, and when the rotating plate 443 moves, it will drive multiple rotating wheels 494 to rotate. At this time, the spring telescopic rod 444 is compressed, and when the movable plate 47 is pushed by the first spring member 412 to re-enter the sealed shell 41, the long slide plate 442 will move in the opposite direction under the action of the spring telescopic rod 444. Because the rotating wheel 494 has a tooth, the spring is compressed when the long slide plate 442 moves and the rotating plate 443 rotates. At this time, the long slide plate 442 cannot drive The movable rotating wheel 494 rotates. When the rotating wheel 494 rotates forward, it will drive the center piece 492 to rotate forward. At this time, the pawl 493 is blocked by the teeth on the sleeve 491 and deformed, and then it can rotate. When the long slide 442 moves in the reverse direction, the rotating wheel 494 will tend to rotate in the reverse direction. When the center piece 492 has a tendency to rotate in the reverse direction, the pawl 493 will be stuck by the teeth on the sleeve 491 and will not be able to rotate in the reverse direction. When the center piece 492 rotates forward, it can drive the auger 48 to rotate. The rotation of the auger 48 can unload the waste slag inside the supporting shell 42. The waste slag will be driven by the auger 48 to be output from the discharge port 415 to the discharge hopper 43, and finally output to the outside of the device.

[0054] By setting a matching component 44, when the gas is continuously transported, the movable plate 47 will be driven to intermittently push the long slide plate 442, so that the rotating wheel 494 can drive the auger 48 to rotate intermittently, thereby realizing automatic unloading of the waste slag, and when unloading, the low-temperature waste slag below will be unloaded first, so that the device is more efficient, more automated, and more efficient.

[0055] Because the temperature of waste slag is usually high, while the temperature of waste liquid and waste gas is not as high as that of waste slag, this device, through a reasonable layout, first allows the waste gas and waste liquid to exchange heat with the water flow, and then exchanges heat with the waste slag. The water flow can be preheated using the waste material with a lower temperature, and then the heat generated by the high-temperature waste slag can be used to make the water flow boil quickly, thereby being able to generate a large amount of water vapor more quickly, making full use of the waste heat of the waste, thereby improving the heat exchange capacity and generating greater energy.

[0056] The air inlet pipe 24 , the water inlet pipe 26 , the water outlet pipe 27 , the steam pipe 28 , the discharge hopper 43 , the electric control valve 36 , the pressure relief valve 37 , the water outlet pipe 27 , and the feed pipe 416 all extend to the outside of the heat-insulating housing 1 .

[0057] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal chemical waste heat recovery system, comprising a heat-insulating housing (1), characterized in that: A recovery component (2), a waste liquid energy conversion component (3), and a waste residue energy conversion component (4) are fixedly installed inside the heat-insulating shell (1); the recovery component (2) is used for heat exchange between gas and water, the waste liquid energy conversion component (3) is used for heat exchange between gas and liquid, and the waste residue energy conversion component (4) is used for heat exchange between gas and solid; The recovery component (2) comprises a transducer shell (21), one side of the transducer shell (21) is fixedly mounted with three evenly distributed first connecting pieces (22), a side of the transducer shell (21) away from the first connecting pieces (22) is fixedly mounted with three second connecting pieces (23) corresponding to the first connecting pieces (22), the interior of the transducer shell (21) is fixedly mounted with three groups of first heat exchange tubes (25) corresponding to the first connecting pieces (22) and the second connecting pieces (23), each group of the first heat exchange tubes (25) is provided with a plurality of first heat exchange tubes (25), two ends of the first heat exchange tubes (25) are respectively connected with the corresponding first connecting pieces (22) and the second connecting pieces (23), and the waste liquid The input end of the energy conversion component (3) is connected to a first connecting piece (22) at the far right through a pipeline, an air inlet pipe (24) is fixedly mounted on the second connecting piece (23) at the far right, the output end of the waste liquid energy conversion component (3) is connected to a second connecting piece (23) at the far left through a pipeline, the first connecting piece (22) at the far left is connected to the input end of the waste residue energy conversion component (4) through a second ventilation pipe (45), the output end of the waste residue energy conversion component (4) is connected to the second connecting piece (23) at the middle through a third ventilation pipe (46), and the first connecting piece (22) at the middle is connected to the waste liquid energy conversion component (3) through a first ventilation pipe (39).

2. A coal chemical waste heat recovery system according to claim 1, characterized in that: The waste liquid energy conversion component (3) comprises a liquid reservoir (31), the interior of the liquid reservoir (31) comprises a first chamber (32) and a second chamber (33), a one-way valve (312) connecting the liquid reservoir (31) and the first chamber (32) is fixedly installed inside the liquid reservoir (31), a third connecting piece (34) is fixedly installed on the side of the outside of the liquid reservoir (31) corresponding to the first connecting piece (22), and a fourth connecting piece (34) is fixedly installed on the side of the outside of the liquid reservoir (31) away from the third connecting piece (34). The third connecting piece (34) is connected to a first connecting piece (22) at the far right through a pipeline, and the fourth connecting piece (35) is connected to a second connecting piece (23) at the far left through a pipeline. A plurality of evenly distributed second heat exchange tubes (311) are fixedly installed inside the liquid storage tank (31), and the second heat exchange tubes (311) run through the first chamber (32) and the second chamber (33). The two ends of the liquid storage tank (31) are respectively connected to the third connecting piece (34) and the fourth connecting piece (35).

3. A coal chemical waste heat recovery system according to claim 2, characterized in that: An electrically controlled valve (36) communicating with the second chamber (33) is fixedly mounted on the external upper end of the liquid storage tank (31), a pressure relief valve (37) communicating with the second chamber (33) is fixedly mounted on the external end of the liquid storage tank (31), a liquid inlet pipe (38) communicating with the first chamber (32) is fixedly mounted on the external end of the liquid storage tank (31), and the bottom end of the first ventilation pipe (39) is connected to the internal bottom end of the second chamber (33) through a pipeline.

4. A coal chemical waste heat recovery system according to claim 3, characterized in that: The waste residue energy conversion component (4) comprises a sealed shell (41), a bearing shell (42) is fixedly mounted on the upper surface of the sealed shell (41), a first sliding plate (410) is slidably mounted on the inner lower surface of the sealed shell (41), a movable plate (47) is slidably mounted on the inner upper surface of the sealed shell (41), the first sliding plate (410) is slidably mounted on the lower surface of the movable plate (47), and the upper surfaces of the sealed shell (41) and the movable plate (47) are both provided with a plurality of evenly distributed through holes (472).

5. A coal chemical waste heat recovery system according to claim 4, characterized in that: A plurality of evenly distributed augers (48) are rotatably mounted inside the bearing shell (42), a plurality of discharge ports (415) corresponding to the augers (48) are provided on one side of the bearing shell (42), a discharge hopper (43) is fixedly mounted on the outside of the bearing shell (42) on the side corresponding to the discharge ports (415), a matching component (44) is mounted on the side of the bearing shell (42) away from the discharge hopper (43), the second ventilation pipe (45) is fixedly mounted on the end of the sealing shell (41), and the third ventilation pipe (46) is fixedly mounted on the upper end of the bearing shell (42).

6. A coal chemical waste heat recovery system according to claim 5, characterized in that: The matching component (44) includes a fixed frame (441), a long slide plate (442) is provided inside the fixed frame (441), a side wall of the bearing shell (42) away from the discharge port (415) is fixedly installed with a plurality of limiting components (49) corresponding to the auger (48), a plurality of rotating plates (443) corresponding to the limiting components (49) are rotatably installed on the long slide plate (442), a spring is connected between the rotating plate (443) and the long slide plate (442), a spring telescopic rod (444) is fixedly connected between the fixed frame (441) and the long slide plate (442), and a baffle plate (445) is integrally formed at one end of the long slide plate (442).

7. A coal chemical waste heat recovery system according to claim 6, characterized in that: The limiting component (49) includes a sleeve (491), a center piece (492) is rotatably mounted inside the sleeve (491), a plurality of evenly distributed pawls (493) are fixedly mounted on the outer ring of the center piece (492), a plurality of latching teeth corresponding to the pawls (493) are integrally formed on the inner ring of the sleeve (491), the middle part of the auger (48) is fixedly mounted on the center piece (492), a rotating wheel (494) is fixedly mounted on the side of the center piece (492) away from the auger (48), and the outer ring of the rotating wheel (494) is also integrally formed with a plurality of evenly distributed latching teeth.

8. A coal chemical waste heat recovery system according to claim 7, characterized in that: A through groove (411) is provided on a side of the sealing shell (41) away from the second ventilation pipe (45); the movable plate (47) is slidably mounted inside the through groove (411); a second sliding plate (471) is fixedly mounted on a lower surface of a side of the movable plate (47) away from the first sliding plate (410); the second sliding plate (471) is slidably mounted inside the sealing shell (41); a plurality of evenly distributed first spring members (412) are fixedly mounted on an end of an outer surface of the sealing shell (41) away from the first sliding plate (410); the first spring member (412) is fixedly connected to the second sliding plate (471); a plurality of evenly distributed second spring members (413) are fixedly mounted on an outer surface of a side of the sealing shell (41) away from the first spring member (412); the second spring member (413) is fixedly connected to the first sliding plate (410).

9. A coal chemical waste heat recovery system according to claim 8, characterized in that: A feed pipe (416) for conveying waste slag is fixedly mounted on one side of the bearing shell (42), and a mesh plate (414) is fixedly mounted inside the through hole (472) on the sealing shell (41).

10. A coal chemical waste heat recovery system according to claim 9, characterized in that: The air inlet pipe (24), the water inlet pipe (26), the water outlet pipe (27), the steam pipe (28), the discharge hopper (43), the electric control valve (36), the pressure relief valve (37), the water outlet pipe (27), and the feed pipe (416) all extend to the outside of the heat-insulating outer shell (1).

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