A dryer unit zero emission system

Abstract

The utility model discloses a kind of drying unit zero discharge systems, it is related to drying technical field, and the utility model includes substrate, the top of the substrate is provided with drying treatment mechanism, for the heat and dust generated when material is carried out drying and crushing are handled, drying treatment mechanism includes: dust handling assembly includes fixedly installed in the top of substrate one side raw material crushing dryer, high-temperature dust-containing waste gas generated by the raw material crushing dryer of the application, after heat exchanger by dust pipe, heat exchange with backflow drying gas, enter cloth bag dust collector, intercept by dispersion disc dispersion and oblique dust cloth bag, remove dust, high-temperature high-humidity gas after dust removal is condensed by low-temperature dehydrator again Water removal, the dry gas generated is backflow to heat exchanger heat absorption and temperature rise, finally back to dryer, greatly reduce the consumption of energy by closed loop, and finally only discharge condensate and collected dust, realize the resource utilization of waste gas and almost zero emission.

Claims

1. A zero-discharge system for a drying unit, comprising a substrate (1), characterized in that: The top of the substrate (1) is provided with a drying mechanism (2) for treating the heat and dust generated during the drying and pulverizing of the material. The drying mechanism (2) includes: The dust handling assembly (21) includes a raw material crushing and drying machine (211) fixedly installed on one side of the top of the substrate (1). A dust conveying pipe (2111) is fixedly installed at the exhaust end of the raw material crushing and drying machine (211). A heat exchanger (212) is fixedly installed at the middle of the top of the substrate (1). The other end of the dust conveying pipe (2111) is fixedly installed at the air inlet of the heat exchanger (212). A preheating inlet pipe (2121) is fixedly installed at the top heat exhaust end of the substrate (1). The other end of the preheating inlet pipe (2121) is fixedly installed at the top air inlet of the raw material crushing and drying machine (211). A bag filter (213) is fixedly installed on one side of the top of the substrate (1). The exhaust end of the heat exchanger (212) is fixedly installed on the bag filter (213). The lower air inlet of the substrate (1) is fixedly installed with a low temperature dehydrator (214) on one side of the top of the substrate (1). The exhaust end of the bag filter (213) is fixedly installed with an air inlet pipe (2131). The other end of the air inlet pipe (2131) is connected to the air inlet of the low temperature dehydrator (214). The exhaust end of the low temperature dehydrator (214) is fixedly installed with a cold air conveying pipe (2141). The other end of the cold air conveying pipe (2141) is fixedly installed at the lower air inlet of the heat exchanger (212). The upper part of the bag filter (213) is fixedly installed with multiple inclined dust bags (215). The middle part of the bag filter (213) is fixedly installed with a dispersion plate (216). The lower part of the bag filter (213) is fixedly installed with a hopper (217). The cleaning component (22) is located at the bottom of the bag filter (213) and is used to scrape off the dust trapped at the bottom.

2. The zero-discharge system for a dryer unit according to claim 1, characterized in that: The cleaning assembly (22) includes a rotating shaft (222) rotatably mounted on one side of the hopper (217). One end of the rotating shaft (222) is provided with a drive assembly, and the other end of the rotating shaft (222) is fixedly mounted with an active bevel gear (224). A scraper frame (227) is rotatably mounted on the upper surface of the hopper (217). A drive shaft (226) is fixedly mounted in the middle of the scraper frame (227). A driven bevel gear (225) is fixedly mounted at the top of the drive shaft (226). The driven bevel gear (225) and the active bevel gear (224) are meshed and connected to each other.

3. The zero-discharge system for a dryer unit according to claim 2, characterized in that: The drive assembly includes a drive motor (221) fixedly installed on one side of the hopper (217), and one end of the rotating shaft (222) is fixedly installed on the drive end of the drive motor (221).

4. The zero-discharge system for a dryer unit according to claim 1, characterized in that: A drain pipe (2142) is fixedly installed on one side of the lower part of the low-temperature dehydrator (214), and the drain pipe (2142) is used to discharge the generated condensate.

5. A zero-discharge system for a dryer unit according to claim 1, characterized in that: The bottom end of the hopper (217) is fixedly installed with a ash discharge pipe (2132), and a control valve is installed in the middle of the ash discharge pipe (2132).

6. A zero-discharge system for a dryer unit according to claim 2, characterized in that: The lower part of the bag filter (213) is fixedly equipped with a protective cover (223), and one end of the rotating shaft (222) and the drive shaft (226) are rotatably installed in the middle of the protective cover (223).

Images