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CN-224207400-U - Improved solid caustic soda drying tower for liquid preparation

CN224207400UCN 224207400 UCN224207400 UCN 224207400UCN-224207400-U

Abstract

The utility model discloses an improved liquid preparation solid caustic soda drying tower, which relates to the technical field of solid caustic soda processing and comprises a cyclone separator and a recovery component, wherein the upper end of the cyclone separator is connected with an air supply pipe, the upper end of the air supply pipe is connected with an exhaust gas treatment box, the recovery component for recovering heat energy is arranged in the exhaust gas treatment box, the recovery component comprises a recovery disc, a liquid outlet pipe, a communicating pipe, a liquid inlet pipe and a central pipe, the liquid outlet pipe is arranged on the right side of the upper end of the recovery disc, and the inner side of the side edge of the recovery disc is provided with the communicating pipe. This modified liquid preparation solid caustic soda drying tower is through the recovery dish inside water liquid that flows to the residual heat recycle in the waste gas air current when drying for the heat after retrieving can be used to the dry other steps of solid caustic soda, and the energy saving, and the feed liquor pipe cooperates communicating pipe to send the water liquid to the recovery dish inside in proper order, after the drain pipe is closed, and the center tube opens the pipeline and makes water liquid circulate in four recovery dishes.

Inventors

  • XU WENRONG

Assignees

  • 衢州市江洲碱业有限公司

Dates

Publication Date
20260508
Application Date
20250604

Claims (8)

  1. 1. The utility model provides a modified liquid preparation solid caustic soda drying tower, includes cyclone (1) and recovery subassembly (4), its characterized in that, the upper end of cyclone (1) is connected with blast pipe (2), and the upper end of blast pipe (2) is connected with waste gas treatment case (3), is used for retrieving heat energy recovery subassembly (4) set up in the inside of waste gas treatment case (3), and recovery subassembly (4) are including recovery dish (401), drain pipe (402), communicating pipe (403), feed liquor pipe (404) and center tube (405), drain pipe (402) are installed on the right side of recovery dish (401) upper end, and the inboard of recovery dish (401) side is installed and communicating pipe (403), feed liquor pipe (404) are installed on the right side of recovery dish (401) lower extreme, and center tube (405) are installed to the center end of recovery dish (401).
  2. 2. The improved solid caustic soda drying tower for liquid production according to claim 1, wherein the number of the recovery trays (401) is four, and the recovery trays (401) and the communicating tubes (403) are alternately distributed at left and right intervals.
  3. 3. An improved liquid preparation solid caustic soda drying tower according to claim 1, characterized in that the top of the exhaust gas treatment tank (3) is fitted with an exhaust pipe (5) and the inside of the recovery tray (401) is provided with a filter assembly (6) for exhaust gas filtration.
  4. 4. An improved liquid preparation solid caustic soda drying tower according to claim 3, characterised in that the filter assembly (6) comprises a filter membrane (601) and a filter activated carbon (602), and that the filter activated carbon (602) is arranged below the filter membrane (601).
  5. 5. An improved liquid preparation solid caustic soda drying tower according to claim 1, characterized in that the recovery tray (401) and the filter membrane (601) are spaced apart and the recovery tray (401) and the filter activated carbon (602) are spaced apart.
  6. 6. An improved liquid preparation solid caustic soda drying tower according to claim 1, characterised in that the side of the cyclone separator (1) is connected with a feed pipe (7), and the upper end of the feed pipe (7) is connected with a drying box (8).
  7. 7. An improved liquid preparation solid caustic soda drying tower according to claim 6, characterised in that the rear side of the drying box (8) is fitted with a hot air inlet pipe (9) and the top of the drying box (8) is fitted with a sprayer (10).
  8. 8. The improved solid caustic soda drying tower for liquid preparation according to claim 7, wherein the top of the sprayer (10) is connected with a wet feed liquid feeding pipe (11), and the end of the wet feed liquid feeding pipe (11) is connected with a wet feed box (12).

Description

Improved solid caustic soda drying tower for liquid preparation Technical Field The utility model relates to the technical field of solid caustic soda processing, in particular to an improved drying tower for preparing solid caustic soda from liquid. Background The drying tower for preparing solid caustic soda (sodium hydroxide, naOH) from liquid is a key device in a caustic soda evaporation concentration-crystallization-drying process, and is mainly used for converting liquid caustic soda (usually 30-50% of concentrated alkali liquor) into solid caustic soda flakes, granular caustic soda or powdery caustic soda, and the drying tower is needed to be used for preparing solid caustic soda from liquid. However, the existing exhaust gas treatment device has low treatment degree on the exhaust gas, and the used filter screen is inconvenient to clean. Disclosure of Invention The present utility model aims to provide an improved drying tower for preparing solid caustic soda from liquid, which solves the problems in the prior art. In order to achieve the above purpose, the improved liquid preparation solid caustic soda drying tower comprises a cyclone separator and a recovery component, wherein the upper end of the cyclone separator is connected with an air supply pipe, the upper end of the air supply pipe is connected with an exhaust gas treatment box, the recovery component for recovering heat energy is arranged in the exhaust gas treatment box, the recovery component comprises a recovery disc, a liquid outlet pipe, a communicating pipe, a liquid inlet pipe and a central pipe, the liquid outlet pipe is arranged on the right side of the upper end of the recovery disc, the inner side of the side edge of the recovery disc is provided with the communicating pipe, the right side of the lower end of the recovery disc is provided with the liquid inlet pipe, and the central pipe is arranged at the central end of the recovery disc. Further, the number of the recovery discs is four, and the recovery discs and the communicating pipes are distributed at intervals in a left-right alternating mode. Further, the blast pipe is installed at the top of exhaust treatment case, and the inboard of retrieving the dish is provided with the filtration subassembly that is used for exhaust gas filtration. Further, the filter component comprises a filter membrane and filter active carbon, and the filter active carbon is arranged below the filter membrane. Further, the recovery disc and the filtering membrane are distributed at intervals, and the recovery disc and the filtering active carbon are distributed at intervals. Further, the side of cyclone is connected with the conveying pipe, and the upper end of conveying pipe is connected with the drying cabinet. Further, the rear side of the drying box is provided with a hot air inlet pipe, and the top of the drying box is provided with a sprayer. Further, the top of atomizer is connected with wet feed liquid pipe, and wet feed box is connected with to wet feed liquid pipe's tip. The utility model provides an improved solid caustic soda drying tower for liquid preparation, which has the following beneficial effects: 1. According to the utility model, residual heat in the waste gas flow during drying is recycled through flowing water liquid in the recovery disk, so that the recycled heat can be used for other steps of drying solid caustic soda, energy is saved, uniformly distributed round holes on the surface of the recovery disk are used for flowing waste gas, the water liquid is sequentially sent into the recovery disk by the liquid inlet pipe and the communicating pipe, and after the liquid outlet pipe is closed, the central pipe is opened to enable the water liquid to circulate in the four recovery disks. According to the utility model, the filtering membrane and the filtering activated carbon which are arranged in pairs are respectively inserted into the inner side of the recovery disc to play a role in filtering waste gas, so that the contact time between the waste gas and the recovery disc can be increased, and the heat recovery effect is improved. Drawings FIG. 1 is a schematic diagram showing the overall structure of an improved liquid-preparation solid caustic soda drying tower according to the present utility model; FIG. 2 is a schematic diagram showing the internal structure of an exhaust gas treatment tank of an improved liquid-preparation solid caustic soda drying tower according to the present utility model; FIG. 3 is a schematic diagram of the recovery assembly of the improved liquid-preparation solid caustic soda drying tower of the present utility model. The device comprises a cyclone separator 1, an air supply pipe 2, an exhaust gas treatment box 3, a recovery assembly 401, a recovery disc 402, a liquid outlet pipe 403, a communicating pipe 404, a liquid inlet pipe 405, a central pipe 5, an exhaust pipe 6, a filtering assembly 601, a filtering membrane 602, filtering active c