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CN-224227159-U - Zinc-containing ash recovery device

CN224227159UCN 224227159 UCN224227159 UCN 224227159UCN-224227159-U

Abstract

The utility model discloses a zinc-containing ash recovery device which comprises a low-temperature drying section, a high-temperature volatilizing section, a flow-through cooling end and an air cooling section which are sequentially arranged along the conveying direction of materials, wherein the low-temperature drying section is used for heating the materials below a first set temperature to remove moisture in the materials, the high-temperature volatilizing section is used for heating the materials above a second set temperature and preserving heat for a preset time to remove volatile matters in the materials, the flow-through cooling section is used for introducing protective atmosphere to cool the materials to a set temperature interval, the air cooling section is used for introducing cooling air to cool the materials to a third set temperature, and the recovery device further comprises a first temperature control assembly, a second temperature control assembly, a ventilation assembly and a smoke treatment assembly.

Inventors

  • WANG DONG
  • WANG YI
  • LIU ZHENGLIANG
  • LIU HAN
  • Xiong Yinxia

Assignees

  • 湖南阿泰克科技有限责任公司

Dates

Publication Date
20260512
Application Date
20250514

Claims (10)

  1. 1. The utility model provides a zinc-containing cigarette ash recovery unit, a serial communication port, including low temperature stoving section (100) that arranges in proper order along the material direction of delivery, high temperature volatilizing section (200), cross flow cooling end and air cooling section (400), low temperature stoving section (100) are used for heating the material below first settlement temperature in order to get rid of the moisture in the material, high temperature volatilizing section (200) are used for heating the material to the second settlement temperature above and keep warm and preserve time in order to get rid of the volatile in the material, cross flow cooling section (300) are used for letting in protective atmosphere in order to cool down the material to the settlement temperature interval, air cooling section (400) are used for letting in cooling air in order to cool down the material to the third settlement temperature, recovery unit still includes the first accuse temperature subassembly that is arranged in low temperature stoving section (100) and is used for controlling the heating curve in low temperature stoving section (100) in order to control the heating rate of material, the second accuse temperature subassembly that is arranged in volatilizing section (200) and is used for controlling the heating curve in the high temperature volatilizing end and keep warm temperature in order to control the heating rate of material, cross flow cooling section (200) and cross flow cooling section (300) are used for leading in protective atmosphere and drawing out the high temperature subassembly and cross flow (300) respectively to the high temperature volatilizing section and cross flow cooling section (300) and are used for carrying out the processing assembly and the air treatment assembly in the high temperature and cross flow (200) and cross flow cooling section and the air cooling section (100) respectively and are used for cooling down in the environment and the heat treatment assembly.
  2. 2. The zinc-containing soot recycling device according to claim 1, wherein the low-temperature drying section (100) comprises a first material conveying layer for conveying materials, an air distribution chamber (110) which is arranged below the first material conveying layer and used for adjusting the proportion of cold air to hot air, an air supply piece which is respectively communicated with the air distribution chamber (110) and the low-temperature drying section (100) and used for heating and conveying the hot air, and a first air collecting cover (130) which is arranged above the first material conveying layer and communicated with the smoke treatment assembly, wherein the air distribution chamber (110) is sequentially arranged in a plurality along the conveying direction of the materials.
  3. 3. The zinc-containing soot recycling device according to claim 2, wherein the first temperature control assembly comprises a first temperature sensor arranged in the air distribution chamber (110) and used for monitoring the air temperature, and a first controller which is respectively connected with the first temperature sensor and the air distribution chamber (110) and used for controlling the proportion of cold air and hot air in the corresponding air distribution chamber (110) according to the air temperature monitored by the first temperature sensor, wherein the first temperature sensor and the air distribution chamber (110) are arranged in a one-to-one correspondence.
  4. 4. The zinc-containing soot recycling device according to claim 1, wherein the high-temperature volatilizing section (200) comprises a plurality of heights Wen Wenou, a first ventilation hood (210) and a second gas collection hood (220), wherein the heights Wen Wenou are sequentially distributed along the conveying direction of materials, the first ventilation hood (210) is arranged below the high-temperature region and communicated with the ventilation assembly and is used for introducing protective atmosphere, the second gas collection hood (220) is arranged above the high-temperature region and communicated with the smoke treatment assembly, the first heights Wen Wenou are used for heating the materials, the second heights Wen Wenou are used for preserving the heat of the materials, and heaters (230) are correspondingly arranged in the heights Wen Wenou one by one.
  5. 5. The zinc-containing soot recovery device according to claim 4, wherein the second temperature control assembly comprises a second temperature sensor for detecting Wen Wenou temperatures arranged in the high-temperature region, and a second controller connected with the second temperature sensor and the heater (230) respectively for controlling the heating temperature of the heater (230) in the corresponding high-temperature region according to the high-temperature region temperature monitored by the second temperature sensor, wherein the second temperature sensor and the high Wen Wenou are arranged in one-to-one correspondence.
  6. 6. The zinc-containing soot recycling device according to any one of claims 1 to 5, wherein the through-flow cooling section (300) comprises a plurality of cooling temperature zones, a cooling air chamber (310) which is arranged below the cooling temperature zones and communicated with the ventilation assembly and used for conveying and adjusting the flow rate of the protective atmosphere, a gas collection cover three (320) which is arranged above the cooling temperature zones and communicated with the ventilation assembly, and a heat exchanger (330) which is arranged on the gas collection cover three (320) and used for cooling the protective atmosphere, wherein the cooling air chamber (310) and the cooling temperature zones are arranged in a one-to-one correspondence.
  7. 7. The zinc-containing soot recovery device according to claim 6, wherein the ventilation assembly comprises a gas tank (510) for storing the protective atmosphere, a first ventilation pipe (520) respectively communicated with the gas tank (510) and the high-temperature volatilization section (200), a second ventilation pipe (530) respectively communicated with the gas tank (510) and the cooling air chamber (310), a cyclone (540) communicated with the gas collecting hood (220), and a reflux fan (550) respectively communicated with the cyclone (540) and the gas tank (510) for recovering the protective atmosphere.
  8. 8. The zinc-containing soot recovery device according to claim 6, further comprising a third temperature control assembly including a third temperature sensor disposed in the cooling temperature zone for monitoring the temperature of the cooling temperature zone, and a third controller connected to the third temperature sensor and the cooling air chamber (310) respectively for controlling the flow of the protective atmosphere in the cooling air chamber (310) according to the temperature of the cooling temperature zone monitored by the third temperature sensor.
  9. 9. The zinc-bearing soot recovery device according to any one of claims 1 to 5, wherein the air cooling section (400) comprises a second material transporting layer for transporting material, a second ventilation hood (410) arranged above the second material transporting layer, a cooling fan (420) communicated with the second ventilation hood (410) for transporting cooling gas, and a fourth gas collecting hood (430) arranged below the material transporting layer and communicated with the low-temperature drying section (100).
  10. 10. The zinc-containing soot recovery device according to any one of claims 1 to 5, wherein the flue gas treatment assembly comprises a negative pressure channel (610) in communication with the high temperature volatilization section (200) and the low temperature drying section (100), respectively, a flue gas dust remover (620) in communication with the negative pressure channel (610), and a flue gas induced draft fan (630) in communication with the flue gas dust remover (620).

Description

Zinc-containing ash recovery device Technical Field The utility model relates to the technical field of metal recovery equipment, in particular to a zinc-containing ash recovery device. Background In the blast furnace production process, a large amount of blast furnace dust is generally produced concomitantly. Because the blast furnace ash contains recyclable zinc, how to effectively and comprehensively utilize the zinc-containing ash to recover valuable elements is a long-felt problem of production enterprises, wherein one technology is to mix the zinc-containing ash with coke powder, send the mixture into a rotary kiln, and obtain a product of zinc suboxide powder after high-temperature fuming treatment, so that zinc in the zinc-containing ash is effectively recovered and utilized. The utility model patent CN216115320U discloses a solid waste recovery system for extracting secondary zinc oxide from zinc-containing waste ash, which comprises a volatile rotary kiln, a feeding system for feeding the volatile rotary kiln, and a gas-solid separation system for separating finished secondary zinc oxide from the flue gas of the rotary kiln, wherein the gas-solid separation system comprises a high-temperature dust collector and an air cooler arranged between the high-temperature dust collector and the volatile rotary kiln, the air cooler is provided with more than two air cooler dust outlets, at least one air cooler dust outlet close to an air cooler air inlet is connected with a raw material bin for feeding the feeding system, and the high-temperature dust collector dust outlet and at least one air cooler dust outlet far from the air cooler air inlet are connected with a finished product bin. Compared with the prior art, the zinc-containing dust removal waste ash is used as the raw material, has the advantages of low raw material cost and wide sources, and the use of the raw material belongs to the secondary utilization of solid waste, so that the pollution of the solid waste to the environment is reduced to a certain extent. As disclosed in chinese patent No. CN217210280U, the rotary kiln for producing zinc oxide by using zinc-containing smoke dust comprises a base plate body and a rotary kiln body, wherein bearing seats are fixedly connected to two ends of the top outer wall of the base plate body, a bearing is arranged on the inner wall of the bearing seats, a driving motor is arranged in the middle of the top outer wall of the base plate body, a rotating gear is fixedly connected to the output end of the driving motor through a rotating shaft, lantern rings are sleeved at two ends of the outer wall of the rotary kiln body and are rotatably connected to the bearing on the inner wall of the bearing seats, driven gears are sleeved on the outer wall of the rotary kiln body and meshed with the outer wall of the top of the rotating gear, a front sealing plate and a rear sealing plate are fixedly connected to the outer walls of two sides of the rotary kiln body respectively, a plurality of fixing plates which are linearly arranged are fixedly connected to the inner wall of the rotary kiln body, and fixing grooves are formed in the outer wall of one side of the fixing plates. According to the utility model, the waste residues are intensively treated through the arranged box door and the reset spring II, so that the method is very convenient. However, in the recovery process of the recovery device, the carbon-containing pellets prepared by mixing zinc-containing soot and a carbon source cannot be treated in time after organic volatile matters are generated in the low-temperature drying and high-temperature reduction processes, and meanwhile, the carbon-containing pellets are easy to burst and pulverize, so that difficulties are brought to subsequent treatment, the recovery efficiency is low, and the environment is easy to pollute. Disclosure of utility model The utility model provides a zinc-containing ash recovery device, which aims to solve the technical problems that in the recovery process of the existing recovery device, generated organic volatile matters are not treated in time, carbon-matched pellets are easy to burst and pulverize, the recovery efficiency is low, the energy consumption is high and the environment is easy to pollute. According to one aspect of the utility model, there is provided a zinc-containing soot recycling device comprising a low-temperature drying section, a high-temperature volatilizing section, a flow-through cooling end and an air cooling section which are sequentially arranged along a material conveying direction, wherein the low-temperature drying section is used for heating the material below a first set temperature to remove moisture in the material, the high-temperature volatilizing section is used for heating the material above a second set temperature and preserving heat for a preset time to remove volatile matters in the material, the flow-through cooling section is used for i