Steam heat exchange type carbon powder ball dryer

Abstract

The utility model relates to a steam heat exchange type carbon powder ball drying machine in the roasting flue gas purification and carbon powder recovery process, which comprises a furnace body, a plurality of layers of reciprocating mesh belts are arranged in a furnace body cavity, mesh belt carrier rollers are respectively arranged at two ends of each layer of mesh belt, ventilation openings are formed in lining plates on two sides of the furnace body, and a feeding device is arranged at the top of one end of the furnace body. A hot air inlet is formed in one side of the top of the furnace body; a cold air outlet is formed in the other side of the top of the furnace body; a water vapor outlet is formed in the middle of the top of the furnace body; a waste hopper is arranged on the bottom surface of the furnace body; the device is low in failure rate, convenient to feed and discharge, uniform in material distribution, adjustable in material distribution layer thickness, low in energy consumption, adjustable in production rate, capable of meeting the requirements of continuous production, high in productivity and good in drying quality, and adopts steam waste heat for drying and heating.

Description

Technical Field

[0001] The utility model relates to a drying machine, in particular to a steam heat exchange type carbon powder ball drying machine in the process of recycling carbon powder by purifying roasting flue gas, belonging to environmental protection equipment for recycling waste carbon powder. Background Art

[0002] In the purification of flue gas from burning, the "carbon powder adsorption method" is needed to treat harmful substances in the flue gas. The carbon powder after adsorption is treated as waste. The treatment method is to burn it to generate heat energy for production and life needs. However, the carbon powder itself has the disadvantages of dust explosion, large pollution, easy dust, low combustion value, etc., which is not conducive to direct combustion, and the packaging and storage conditions are also relatively harsh. The combustion products produced are relatively polluting to the environment, so the waste carbon powder needs to be made into carbon powder balls before storage or combustion.

[0003] Therefore, a device for making carbon powder into carbon balls is needed to meet this requirement. The steam heat exchange carbon powder ball dryer is the drying supporting equipment in the "carbon powder ball making system", but the current steam heat exchange carbon powder ball dryer is 30-50 meters long, with low drying efficiency and often cannot be dried, resulting in the carbon powder balls being easily broken and having a low yield. In addition, it is inconvenient to feed and discharge materials, and continuous production cannot be achieved. In addition, the energy consumption is high during the drying process. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides a steam heat exchange carbon powder ball drying machine, the purpose of which is to have a small footprint, low energy consumption, high efficiency, adjustable production rate, stable quality and safe operation.

[0005] To achieve the above-mentioned purpose, the utility model steam heat exchange carbon powder ball dryer includes a furnace body, a plurality of layers of reciprocating mesh belts are arranged in the furnace body cavity, mesh belt rollers are respectively arranged at both ends of each layer of mesh belt, vents are opened on the inner lining plates on both sides of the furnace body, a feeding device is arranged at the top of one end of the furnace body, a discharge hopper is arranged at the bottom of the other end of the furnace body, a hot air inlet is arranged on one side of the top of the furnace body, a cold air outlet is arranged on the other side of the top of the furnace body, a water vapor outlet is arranged in the middle of the top of the furnace body, a waste hopper is arranged on the bottom of the furnace body, and reduction motors are respectively arranged at both ends of the outer side of the furnace body, and the reduction motors are connected to the mesh belt rollers through a transmission mechanism.

[0006] The multi-layer reciprocating mesh belt has 5 layers; the mesh belt rollers of the odd-numbered layers and the even-numbered layers on the same side are staggered, and a blanking baffle is provided at the end of each mesh belt operation. Both ends of each blanking baffle are fixed on the inner wall of the furnace body, and both ends of each mesh belt roller are sealed with a sealing sleeve.

[0007] The mesh belt is mesh-shaped, and the mesh belts of odd-numbered layers and even-numbered layers have the same length. The mesh belt rollers of the even-numbered layers extend out of the mesh belt rollers of the even-numbered layers at the discharging end of the furnace body. The reduction motor on the outside of the discharging end of the furnace body is connected to the main transmission sprocket through the main transmission chain, and the main transmission sprocket is fixed to one end of the mesh belt roller of the third layer, and a slave transmission sprocket is provided at the other end of the mesh belt roller of the third layer. The slave transmission sprocket is connected to the end transmission sprocket on the mesh belt roller of the first layer and the mesh belt roller of the fifth layer through the slave transmission chain; the reduction motor on the outside of the feeding end of the furnace body is connected to the main transmission sprocket through the main transmission chain, and the main transmission sprocket is fixed to one end of the mesh belt roller of the second layer, and a slave transmission sprocket is provided at the other end of the mesh belt roller of the second layer, and the slave transmission sprocket is connected to the end transmission sprocket on the mesh belt roller of the fourth layer through the slave transmission chain.

[0008] The feeding device is composed of a feeding hopper and a distribution plate, wherein the feeding hopper includes a bottom plate, the bottom plate is fan-shaped, a plurality of partitions are arranged on the bottom plate, triangular side plates are arranged on both sides of the feeding end of the bottom plate, a baffle is arranged between the two triangular side plates, the end of the bottom plate is arranged above the mesh belt, the feeding end of the bottom plate, the two triangular side plates and the baffle are surrounded by a feeding port arranged outside the furnace body, and the bottom plate is inclined; the distribution plate is arranged on the outside of the end of the bottom plate, and long holes are respectively arranged at both ends of the distribution plate, and bolts pass through the long holes to fix the two ends of the distribution plate to the inner wall of the furnace body, and a steel brush connected by bolts is arranged on the bottom surface of the distribution plate.

[0009] There are three hot air inlets, three cold air outlets and three water vapor outlets respectively. Each hot air inlet is connected to an air outlet pipe of a steam heat exchanger, each cold air outlet is connected to a high-temperature circulation fan through a return air pipe, a steam heat exchanger is respectively connected to a steam pipeline and a high-temperature circulation fan, each water vapor outlet is connected to a dehumidification pipe arranged above the furnace body, and a dehumidification fan is provided at the end of the dehumidification pipe.

[0010] The hot air inlet is connected to the air inlet box arranged on the upper part of the furnace body, and the cold air outlet is connected to the return air box arranged on the upper part of the furnace body. The air inlet box and the return air box are open on the side, and grille plates are arranged in the air inlet box and the return air box. The vents are arranged on the lining plate under each layer of mesh belt. There are five rows of vents, and the size of the vents increases from top to bottom.

[0011] The return air duct is provided with a regulating valve, the return air thermocouple is inserted into the return air duct, the outlet air thermocouple is inserted into the outlet air duct, and a dehumidification regulating valve is provided on the pipeline connecting the water vapor outlet and the dehumidification pipeline.

[0012] The steam pipeline is provided with a steam thermometer, a steam pressure gauge and an electric regulating valve, which is connected to a steam trap after passing through a steam heat exchanger, and the condensed water in the pipeline is discharged into the circulating water network through the steam trap.

[0013] A heat-insulating layer is installed outside the furnace body, and an inspection platform and a safety guardrail are installed on the top of the furnace body.

[0014] There are 7 waste hoppers, a quick-detachable discharge door is provided at the bottom of the waste hopper, and an inspection door is provided on the side of the furnace body above the discharge hopper.

[0015] The advantages and effects of the utility model are as follows: the utility model has a low failure rate, is convenient for feeding and discharging, has uniform material distribution, and has an adjustable material layer thickness. It uses waste heat from steam for drying and heating, has low energy consumption, and achieves the environmental protection requirements of energy conservation and emission reduction. The production rate is adjustable, and it can meet continuous production, has high production capacity, and has good drying quality, and can fully meet production requirements. It plays a vital role in the continuous automated production of carbon powder recycling and reuse. The utility model combines the actual production conditions and uses steam heat exchange to reduce the heating energy consumption of the equipment; through the continuous operation of the five-layer mesh belt, the ball-making product obtains sufficient heat exchange inside the dryer, and the moisture in the carbon powder ball is discharged through air circulation, which not only improves the continuous production efficiency, but also greatly improves the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a main stereogram of the utility model.

[0017] Figure 2 It is a rear perspective view of the present utility model.

[0018] Figure 3 It is a cutaway diagram of the utility model.

[0019] Figure 4 It is a top view of the utility model.

[0020] Figure 5 It is a schematic diagram of the structure of the utility model.

[0021] Figure 6 It is a schematic diagram of the feeding device of the utility model.

[0022] Figure 7 It is a schematic diagram of the mesh belt transmission mechanism at the feed end of the utility model.

[0023] Figure 8 It is a connection schematic diagram of the steam heat exchange system of the utility model.

[0024] In the figure: 1. furnace body; 2. feed hopper; 3. distribution plate; 4. waste hopper; 5. discharge door; 6. mesh belt roller; 7. sealing sleeve; 8. mesh belt; 9. insulation layer; 10. reduction motor; 11. transmission mechanism; 12. dehumidification fan; 13. dehumidification pipeline; 14. dehumidification regulating valve; 15. regulating valve; 16. return air duct; 17. steam heat exchanger; 18. outlet air duct; 19. high temperature circulation fan; 20. return air thermocouple; 21. outlet air heat exchanger; 22. Thermocouple; 22. Steam thermometer; 23. Steam pressure gauge; 24. Steam trap; 25. Electric regulating valve; 26. Furnace support legs; 27. Air inlet box; 28. Return air box; 29. ​​Grille plate; 30. Ventilation port; 31. Discharge hopper; 32. Inspection door; 33. Platform and safety guardrail; 34. Dropping baffle; 35. Main transmission chain; 36. Main transmission sprocket; 37. Slave transmission sprocket; 38. Slave transmission chain; 39. Terminal transmission sprocket. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The bottom of the multi-layer reciprocating mesh belt of the utility model is the first layer. Example 1

[0027] As shown in the figure, the utility model steam heat exchange carbon powder ball drying machine includes a furnace body 1, a plurality of reciprocating mesh belts 8 are arranged in the cavity of the furnace body 1, mesh belt rollers 6 are respectively arranged at both ends of each mesh belt 8 to ensure the load-bearing capacity of the mesh belt, vents 30 are opened on the inner lining plates on both sides of the furnace body 1, a feeding device is arranged at the top of one end of the furnace body 1, a discharge hopper 31 is arranged at the bottom of the other end of the furnace body, a hot air inlet is arranged on one side of the top of the furnace body, a cold air outlet is arranged on the other side of the top of the furnace body 1, a water vapor outlet is arranged in the middle of the top of the furnace body 1, a waste hopper 4 is arranged on the bottom surface of the furnace body 1, and reduction motors 10 are respectively arranged at both ends of the outer side of the furnace body, and the reduction motor 10 is connected to the mesh belt rollers 6 through a transmission mechanism 11.

[0028] The multi-layer reciprocating mesh belt of this embodiment has 5 layers; the mesh belt rollers 6 of the 1st mesh belt, 3rd mesh belt and 5th mesh belt on the same side are staggered, and a material drop baffle 34 is provided at the end of each mesh belt 8. When the carbon powder balls of one mesh belt are transmitted to the end, they will roll down to the next mesh belt through the material drop baffle 34 provided at the front end. Both ends of each material drop baffle 34 are fixed on the inner wall of the furnace body 1, and both ends of each mesh belt roller 6 are sealed with a sealing sleeve 7. The 1st mesh belt, 3rd mesh belt and 5th mesh belt are forward transmission, and the 2nd mesh belt and 4th mesh belt are reverse transmission.

[0029] The mesh belt 8 is mesh-shaped and is made of stainless steel wire, which is resistant to high temperature corrosion. The mesh belts 8 of the odd-numbered and even-numbered layers are of the same length, and the mesh belt rollers 6 of the even-numbered layers extend out of the mesh belt rollers 6 of the even-numbered layers at the discharge end of the furnace body 1. The reduction motor 10 on the outer side of the discharge end of the furnace body 1 is connected to the main transmission sprocket 36 through the main transmission chain 35, and the main transmission sprocket 36 is fixed to one end of the third-layer mesh belt roller 6. The other end of the third-layer mesh belt roller 6 is provided with a slave transmission sprocket 37, and the slave transmission sprocket 37 is connected to the end transmission sprocket 39 on the first-layer mesh belt roller 6 and the fifth-layer mesh belt roller 6 through the slave transmission chain 38; the reduction motor 10 on the outer side of the furnace body feed end is connected to the main transmission sprocket 36 through the main transmission chain 35, and the main transmission sprocket 36 is fixed to one end of the second-layer mesh belt roller 6. The other end of the second-layer mesh belt roller 6 is provided with a slave transmission sprocket 37, and the slave transmission sprocket 37 is connected to the end transmission sprocket 39 on the fourth-layer mesh belt roller 6 through the slave transmission chain 38. The reduction motor 10 on the feeding end side drives the second layer mesh belt roller 6, and the second layer mesh belt roller 6 drives the fourth layer mesh belt roller 6 through the transmission chain 38; the reduction motor 10 on the discharging end side drives the third layer mesh belt roller 6, and the third layer mesh belt roller 6 drives the first layer mesh belt roller 6 and the fifth layer mesh belt roller 6 through the transmission chain 38.

[0030] The feeding device is composed of a feeding hopper 2 and a distribution plate 3, wherein the feeding hopper 2 includes a bottom plate 21, the bottom plate 21 is fan-shaped, a plurality of partitions 22 are arranged on the bottom plate 21, triangular side plates 23 are arranged on both sides of the feeding end of the bottom plate 21, a baffle 24 is arranged between the two triangular side plates 23, the end of the bottom plate 21 is arranged above the mesh belt 8, the feeding end of the bottom plate 21, the two triangular side plates 23 and the baffle 24 The feed port is arranged outside the furnace body 1, and the bottom plate 1 is inclined to solve the problem of material blockage and adhesion during material unloading; the distribution plate 3 is arranged on the outside of the end of the bottom plate 21, and long holes are respectively arranged at both ends of the distribution plate 3. Bolts pass through the long holes to fix the two ends of the distribution plate 3 to the inner wall of the furnace body 1. A steel brush 31 connected by bolts is provided on the bottom surface of the distribution plate 3, which can evenly spread the carbon powder balls on the conveyor mesh belt 8, and the long holes are fixed by bolts, and the spacing between the distribution plate 3 and the mesh belt can be adjusted. By arranging a plurality of partitions 22 on the bottom plate 21, the carbon powder balls can roll onto the mesh belt according to their own channels when unloading.

[0031] There are three hot air inlets, three cold air outlets and three water vapor outlets respectively. Each hot air inlet is connected to an air outlet pipe 18 of a steam heat exchanger 17. Each cold air outlet is connected to a high-temperature circulation fan 19 through a return air pipe 16. A steam heat exchanger 17 is respectively connected to a steam pipeline and a high-temperature circulation fan 19. Each water vapor outlet is connected to a dehumidification pipe 13 arranged above the furnace body 1, and a dehumidification fan 12 is provided at the end of the dehumidification pipe 13.

[0032] The hot air inlet is connected to the air inlet box 27 provided on the upper part of the furnace body 1, and the cold air outlet is connected to the return air box 28 provided on the upper part of the furnace body. The air inlet box 27 and the return air box 28 are open on the side, and a grille plate 29 is provided inside the air inlet box 27 and the return air box 28 to play a rectifying role; the vents 30 are provided on the inner lining plate under each layer of mesh belt 8, and there are five rows of vents 30, and the size of each row of vents 30 increases from top to bottom. A certain amount of carbon powder will be carried in the circulating air, and the steam heat exchanger 17 is safer and more reliable than the traditional electric heater when encountering carbon powder, and there will be no flash explosion problem. The carbon powder balls are mainly heated and dried by forced convection and heat conduction, and the water is evaporated quickly to achieve a hardening effect. The carbon powder balls are reciprocated and transported on the multi-layer mesh belt, and heated layer by layer. The carbon powder balls are ensured to have sufficient heating time by adjusting the mesh belt conveying speed.

[0033] The return air duct 16 is provided with a regulating valve 15, which can realize the rapid cooling of the materials in the furnace under special circumstances. The return air thermocouple 20 is inserted into the return air duct 16, the outlet air thermocouple 21 is inserted into the outlet air duct 18, and a dehumidification regulating valve 14 is provided on the pipeline connecting the water vapor outlet and the dehumidification pipeline 13. The opening adjustment of the dehumidification regulating valve 14 can ensure the rapid discharge of water vapor in the furnace while the heat of the furnace gas will not be lost, and the discharged gas is merged into the dust removal system.

[0034] The steam pipeline is provided with a steam thermometer 22, a steam pressure gauge 23 and an electric regulating valve 25, which is connected to a steam trap 24 after passing through a steam heat exchanger 17, and the condensed water in the pipeline is discharged into the circulating water network through the steam trap 24.

[0035] A heat-insulating layer 9 is installed outside the furnace body 1 , and an inspection platform and a safety guardrail 33 are installed on the top of the furnace body 1 .

[0036] There are 7 waste hoppers 4, with a quick-detachable discharge door 5 at the bottom of the waste hopper 4, and an inspection door 32 at the side of the furnace body 1 above the discharge hopper 31. A furnace body support leg 26 is provided at the bottom of the furnace body 1, which is a detachable structure for easy delivery and installation. Example 2

[0037] The multi-layer reciprocating mesh belt of this embodiment has 3 layers. The reduction motor 10 on the outer side of the discharge end of the furnace body 1 is connected to the main transmission sprocket 36 through the main transmission chain 35. The main transmission sprocket 36 is fixed to one end of the first layer mesh belt roller 6. The other end of the first layer mesh belt roller 6 is provided with a slave transmission sprocket 37. The slave transmission sprocket 37 is connected to the terminal transmission sprocket 39 on the third layer mesh belt roller 6 through the slave transmission chain 38. The reduction motor 10 on the outer side of the feed end of the furnace body is connected to the main transmission sprocket 36 through the main transmission chain 35. The main transmission sprocket 36 is fixed to one end of the second layer mesh belt roller 6. The reduction motor 10 on the feed end side drives the second layer mesh belt roller 6; the reduction motor 10 on the discharge end side drives the first layer mesh belt roller 6, and the first layer mesh belt roller 6 drives the third layer mesh belt roller 6 through the slave transmission chain 38. Others are the same as in Example 1.

[0038] The working principle of the utility model is as follows: the semi-finished carbon powder balls rolled by the wheel mill firstly pass through the feed hopper 2 and roll onto the conveyor mesh belt 8, and the carbon powder balls are evenly spread through the cloth plate 3, and the carbon powder balls begin to be transported back and forth layer by layer on the mesh belt 8, and finally discharged from the first layer of mesh belt into the discharge hopper. The heating system adopts the form of hot air circulation heating, and the steam heat exchanger heats the cold air through heat exchange and then sends it to the furnace to heat the temperature in the furnace, and the hot air enters from the hot air inlet of the furnace body, changes direction through the air inlet box and runs downward, and enters the bottom surface of each layer of mesh belt when passing through the ventilation opening of each layer. Since the mesh belt is mesh-shaped, while the hot air heats the carbon powder balls, the wet steam passes through the mesh belt to the water vapor outlet and is discharged into the dehumidification pipe 13, and is discharged by the dehumidification fan 12, and the wind is discharged from the ventilation opening on the other side of the furnace body and rises to the return air box, and is discharged from the cold air outlet through the return air box, and enters the high-temperature circulation fan through the return air pipe, and then is sent to the steam heat exchanger for heat exchange again.

[0039] The toner balls are continuously dried during the conveying process of each layer of mesh belt. Some unqualified broken balls and powder fall into the waste hopper at the bottom of the furnace through the mesh screen of the mesh belt for regular cleaning. The final finished toner balls are conveyed by the first layer of mesh belt to the discharge hopper and enter the silo or the next conveying mechanism.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Steam heat exchange carbon powder ball drying machine, characterized by It includes a furnace body, in which a plurality of layers of reciprocating mesh belts are arranged in the furnace body cavity, mesh belt rollers are arranged at both ends of each layer of mesh belts, ventilating openings are provided on the inner lining plates on both sides of the furnace body, a feeding device is provided at the top of one end of the furnace body, a discharging hopper is provided at the bottom of the other end of the furnace body, a hot air inlet is provided on one side of the top of the furnace body, a cold air outlet is provided on the other side of the top of the furnace body, a water vapor outlet is provided in the middle of the top of the furnace body, a waste hopper is provided on the bottom of the furnace body, and reduction motors are provided at both ends of the outer side of the furnace body, which are connected to the mesh belt rollers through a transmission mechanism.

2. The steam heat exchange carbon powder ball drying machine according to claim 1, characterized in that The multi-layer reciprocating mesh belt has 5 layers; the mesh belt rollers of the odd-numbered layers and the even-numbered layers on the same side are staggered, and a blanking baffle is provided at the end of each mesh belt operation. Both ends of each blanking baffle are fixed on the inner wall of the furnace body, and both ends of each mesh belt roller are sealed with a sealing sleeve.

3. The steam heat exchange type carbon powder ball drying machine according to claim 1 or 2, characterized in that The mesh belt is mesh-shaped, and the mesh belts of odd-numbered layers and even-numbered layers have the same length. The mesh belt rollers of the even-numbered layers extend out of the mesh belt rollers of the even-numbered layers at the discharging end of the furnace body. The reduction motor on the outside of the discharging end of the furnace body is connected to the main transmission sprocket through the main transmission chain, and the main transmission sprocket is fixed to one end of the mesh belt roller of the third layer, and a slave transmission sprocket is provided at the other end of the mesh belt roller of the third layer. The slave transmission sprocket is connected to the end transmission sprocket on the mesh belt roller of the first layer and the mesh belt roller of the fifth layer through the slave transmission chain; the reduction motor on the outside of the feeding end of the furnace body is connected to the main transmission sprocket through the main transmission chain, and the main transmission sprocket is fixed to one end of the mesh belt roller of the second layer, and a slave transmission sprocket is provided at the other end of the mesh belt roller of the second layer, and the slave transmission sprocket is connected to the end transmission sprocket on the mesh belt roller of the fourth layer through the slave transmission chain.

4. The steam heat exchange carbon powder ball drying machine according to claim 1, characterized in that The feeding device is composed of a feeding hopper and a distribution plate, wherein the feeding hopper includes a bottom plate, the bottom plate is fan-shaped, a plurality of partitions are arranged on the bottom plate, triangular side plates are arranged on both sides of the feeding end of the bottom plate, a baffle is arranged between the two triangular side plates, the end of the bottom plate is arranged above the mesh belt, the feeding end of the bottom plate, the two triangular side plates and the baffle are surrounded by a feeding port arranged outside the furnace body, and the bottom plate is inclined; the distribution plate is arranged on the outside of the end of the bottom plate, and long holes are respectively arranged at both ends of the distribution plate, and bolts pass through the long holes to fix the two ends of the distribution plate to the inner wall of the furnace body, and a steel brush connected by bolts is arranged on the bottom surface of the distribution plate.

5. The steam heat exchange carbon powder ball drying machine according to claim 1, characterized in that There are three hot air inlets, three cold air outlets and three water vapor outlets respectively. Each hot air inlet is connected to an air outlet pipe of a steam heat exchanger, each cold air outlet is connected to a high-temperature circulation fan through a return air pipe, a steam heat exchanger is respectively connected to a steam pipeline and a high-temperature circulation fan, each water vapor outlet is connected to a dehumidification pipe arranged above the furnace body, and a dehumidification fan is provided at the end of the dehumidification pipe.

6. The steam heat exchange type carbon powder ball drying machine according to claim 1 or 5, characterized in that The hot air inlet is connected to the air inlet box arranged on the upper part of the furnace body, and the cold air outlet is connected to the return air box arranged on the upper part of the furnace body. The air inlet box and the return air box are open on the side, and grille plates are arranged in the air inlet box and the return air box. The vents are arranged on the lining plate under each layer of mesh belt. There are five rows of vents, and the size of the vents increases from top to bottom.

7. The steam heat exchange carbon powder ball drying machine according to claim 5, characterized in that The return air duct is provided with a regulating valve, the return air thermocouple is inserted into the return air duct, the outlet air thermocouple is inserted into the outlet air duct, and a dehumidification regulating valve is provided on the pipeline connecting the water vapor outlet and the dehumidification pipeline.

8. The steam heat exchange carbon powder ball drying machine according to claim 5, characterized in that The steam pipeline is provided with a steam thermometer, a steam pressure gauge and an electric regulating valve, which is connected to a steam trap after passing through a steam heat exchanger, and the condensed water in the pipeline is discharged into the circulating water network through the steam trap.

9. The steam heat exchange carbon powder ball drying machine according to claim 1, characterized in that A heat-insulating layer is installed outside the furnace body, and an inspection platform and a safety guardrail are installed on the top of the furnace body.

10. The steam heat exchange carbon powder ball drying machine according to claim 1, characterized in that There are 7 waste hoppers, a quick-detachable discharge door is provided at the bottom of the waste hopper, and an inspection door is provided on the side of the furnace body above the discharge hopper.

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