一种循环利用热能的污泥烘干设备

Abstract

本实用新型属于环保设备技术领域，尤其涉及一种循环利用热能的污泥烘干设备，包括烘房，烘房靠近其两端的位置处分别设置有进料口和出料口，烘房靠近进料口的一端设置有热风炉，烘房的热风入口与热风炉连通，烘房的热风出口连接有换热器，换热器通过管道与热风炉连接，本实用新型结构通过合理化设计，烘房排出的废气进入换热器，由于废气中仍旧具有足够的热量，能够对经过换热器的新鲜空气进行预热，空气预热后再进入热风炉加热，有效降低了燃料的使用，节能环保。

Claims

1. A sludge drying apparatus recycling heat energy, comprising a drying chamber (1), characterized in that: The drying room (1) is provided with an inlet (101) and an outlet (102) near both ends respectively, a hot blast stove (2) is arranged near the inlet (101) of the drying room (1), a hot blast inlet (103) of the drying room (1) is communicated with the hot blast stove (2), and a heat exchanger (3) is connected to a hot blast outlet (104) of the drying room (1).

2. The sludge drying apparatus of claim 1, wherein: The hot blast stove (2) comprises a combustion box (201) and a mounting box (202), a grate (2011) is arranged in the combustion box (201), a combustion chamber is arranged above the grate (2011), a stove air outlet (203) communicated with the combustion chamber is fixedly connected to the combustion box (201), the stove air outlet (203) is communicated with the hot blast inlet (103), and an ash chamber is arranged below the grate (2011).

3. The sludge drying apparatus of claim 2, wherein: The mounting box (202) is provided with a feeding device and an air feeding device, and the feeding device is arranged above the air feeding device.

4. The sludge drying apparatus of claim 3, wherein: The feeding device comprises a fuel feeding pipe (204) fixedly connected to the mounting box (202), a feeding pipe (205) fixedly connected below the fuel feeding pipe (204), the feeding pipe (205) is arranged obliquely, a feeding auger (206) rotatably connected in the feeding pipe (205), the feeding pipe (205) is communicated with the fuel feeding pipe (204) near the lower end thereof, and the feeding pipe (205) is communicated with the combustion chamber near the upper end thereof.

5. The sludge drying apparatus of claim 4, wherein: The air feeding device comprises an air inlet pipe (207) and an air inlet box (208), both of which are fixedly connected to the mounting box (202), the air inlet box (208) is provided with a filter screen, and an air fan (209) is arranged between the air inlet pipe (207) and the air inlet box (208).

6. The sludge drying apparatus of claim 5, wherein: The heat exchanger (3) comprises a frame (301), a bottom plate fixedly connected below the frame (301), front, rear and upper baffles (304, 305 and 306) fixedly connected to the side and upper surface of the frame (301) respectively, and a heat exchange cavity formed by the bottom plate, the front, rear and upper baffles (304, 305 and 306).

7. The sludge drying apparatus of claim 6, wherein: Both ends of the frame (301) are fixedly connected with support plates (302), a plurality of heat exchange pipes (303) are fixedly connected between the two support plates (302), and the heat exchange pipes (303) are in a spiral structure.

8. The sludge drying apparatus of claim 7, wherein: New air inlet and outlet flanges (306 and 307) are fixedly connected to the sides of the two support plates (302) away from each other, the two ends of the heat exchange pipes (303) are communicated with the new air inlet and outlet flanges (306 and 307) respectively, and the new air outlet flange (307) is communicated with the air inlet pipe (207) of the hot blast stove (2) through a pipeline.

9. The sludge drying apparatus of claim 8, wherein: Waste heat inlet and outlet flanges (308 and 309) are fixedly connected to the sides of the frame (301), the waste heat inlet and outlet flanges (308 and 309) are arranged at opposite angles, and the waste heat inlet flange (308) is communicated with the hot blast outlet (104) of the drying room (1).

10. The sludge drying apparatus of claim 9, wherein: The waste heat air inlet flange (308) is installed at a position close to the fresh air outlet flange (307) of the frame (301), and the waste heat air outlet flange (309) is installed at a position close to the fresh air air inlet flange (306) of the frame (301).

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