Search

CN-122015470-A - Boric acid drying equipment

CN122015470ACN 122015470 ACN122015470 ACN 122015470ACN-122015470-A

Abstract

The invention relates to the technical field of boric acid processing and discloses boric acid drying equipment which comprises a base, a first drying component and a second drying component, wherein the first drying component comprises a drying pipe I and a shell I, a cavity I is formed between the shell I and the outer wall of the drying pipe I, a plurality of air inlets I which are inclined upwards are formed in the circumferential direction of the lower side of the drying pipe I, the air inlets I are communicated with the cavity I, an air inlet pipe I communicated with the cavity I is arranged on the shell I, the second drying component comprises a drying pipe II, a heating component and a stirring and air drying component, the top of the drying pipe II is communicated with the bottom of the drying pipe I, the heating component is used for heating the drying pipe II, and the stirring and air drying component is used for stirring and air drying materials. According to the invention, the materials can be uniformly dried in multiple stages through the cooperation between the first drying assembly, the second drying assembly and the material buffer assembly, and the adhesion amount of the materials on the wall surface can be reduced through the design of the second air inlet and the Teflon coating.

Inventors

  • WANG BIN
  • LI ZHONG
  • ZHANG JING
  • Syl Aili Rouzi Maiti

Assignees

  • 新疆叶城华峰化工有限公司

Dates

Publication Date
20260512
Application Date
20260121

Claims (10)

  1. 1. Boric acid drying equipment is characterized by comprising a base (1); The first drying component (2) comprises a drying pipe I (21) and a shell I (22), wherein the shell I (22) is concentrically arranged on the outer wall of the drying pipe I (21) and forms a cavity I (23) with the outer wall of the drying pipe I, a plurality of air inlets I (211) which incline upwards are formed in the circumferential direction of the lower side of the drying pipe I (21), the air inlets I (211) are communicated with the cavity I (23), and an air inlet pipe I (221) communicated with the cavity I (23) is arranged on the shell I (22); The second drying assembly (3) is arranged on the base (1) and comprises a second drying pipe (31), a heating assembly (32) and a stirring air drying assembly (33), the second drying pipe (31) and the first drying pipe (21) are concentrically arranged, the top of the second drying pipe (31) is communicated with the bottom of the first drying pipe (21), the heating assembly (32) is arranged on the outer wall of the second drying pipe (31) and used for heating the interior of the second drying pipe (31), and a discharge hole is formed in the lower side of the second drying pipe (31); Stirring air-dries subassembly (33), it includes air-supply axle (331), a plurality of blade group and power component (333), air-supply axle (331) coaxial setting is in drying tube two (31), and runner (3311) have been seted up along its axial in air-supply axle (331), a plurality of blade group set up along the axial interval of air-supply axle (331), blade group includes a plurality of blade body (332), a plurality of air outlets (3321) with runner (3311) intercommunication have been seted up on blade body (332), power component (333) set up in the bottom of drying tube two (31) for drive air-supply axle (331) rotate.
  2. 2. Boric acid drying apparatus according to claim 1, further comprising a butterfly valve (4), wherein the top and bottom of the butterfly valve (4) are fixedly connected to the bottom of the first drying pipe (21) and the top of the second drying pipe (31), respectively, and wherein the butterfly valve (4) is adapted to control the communication between the first drying pipe (21) and the second drying pipe (31).
  3. 3. Boric acid drying apparatus according to claim 1, wherein the drying tube one (21) comprises an upper section (212) and a lower section (213); The first drying assembly (2) further comprises a dust recycling assembly (24), the dust recycling assembly comprises a second shell (241) and a first annular filter plate (242), the first filter plate (242) is concentrically arranged with the first drying pipe (21), the upper side and the lower side of the first filter plate (242) are respectively attached to the bottom of the upper section (212) and the top of the lower section (213), the second shell (241) is arranged on the outer side of the first filter plate (242) and forms a second cavity (243) with the first filter plate (242), an exhaust tube (244) communicated with the second cavity (243) is arranged on the second shell (241), and the second shell (241) is fixedly connected with the upper section (212) and the lower section (213) at the same time.
  4. 4. A boric acid drying apparatus according to claim 3, wherein the upper section (212) is provided with a plurality of air inlets two (2121) inclined downwards in the circumferential direction, a third casing (25) is concentrically arranged on the outer wall of the upper section (212), a third cavity (26) is formed between the third casing (25) and the outer wall of the upper section (212), and a second air inlet pipe (27) communicated with the third cavity (26) is arranged on the third casing (25).
  5. 5. Boric acid drying apparatus according to claim 1, wherein the heating assembly (32) comprises a mounting shell (321) and a plurality of heating plates (323), the mounting shell (321) is concentrically wrapped on the outer wall of the drying tube two (31) and forms a mounting cavity (322) with the outer wall of the drying tube two (31), and the plurality of heating plates (323) are uniformly distributed in the mounting cavity (322).
  6. 6. Boric acid drying apparatus according to claim 1, wherein the second drying assembly (3) further comprises a stripper plate (34), the stripper plate (34) is arranged in the second drying pipe (31), one side of the stripper plate (34) close to the discharge port is flush with the bottom of the discharge port, one side of the stripper plate (34) away from the discharge port is higher than the discharge port, and the air feeding shaft (331) is in sliding connection with the stripper plate (34) in the vertical direction.
  7. 7. The boric acid drying apparatus according to claim 1, wherein the power assembly (333) comprises a mounting tube (3331), a motor (3332), a first gear (3333), a second gear (3334) and a support plate (3335), the mounting tube (3331) is concentrically arranged with the second drying tube (31), the top of the mounting tube (3331) is fixedly connected with the bottom of the second drying tube (31), the support plate (3335) is concentrically arranged in the mounting tube (3331), the air supply shaft (331) is rotatably connected with the support plate (3335), the motor (3332) is fixedly connected in the mounting tube (3331), the first gear (3333) and the second gear (3334) are fixedly connected with the output end of the motor (3332) and the air supply shaft (331), and the first gear (3333) and the second gear (3334) are meshed with each other.
  8. 8. Boric acid drying apparatus according to claim 7, wherein the second drying assembly (3) further comprises a 匚 -shaped frame (35) and an air supply pipe (36), the 匚 -shaped frame (35) is arranged in the mounting pipe (3331) with the opening facing downwards, one end of the air supply pipe (36) is communicated with the bottom of the air supply shaft (331) through the top of the 匚 -shaped frame (35), and the other end extends out of the mounting pipe (3331) to be communicated with an external air source.
  9. 9. Boric acid drying apparatus according to claim 1, wherein the blade bodies (332) at different heights are arranged in a staggered manner in the axial direction of the air supply shaft (331), and an included angle is formed between the blade bodies (332) and a horizontal plane.
  10. 10. The boric acid drying device according to claim 1, further comprising a material buffer assembly (5), which comprises a discharge pipe (51), a buffer tube (52), a housing four (53), a filter plate two (54) and a cover plate (55), wherein the buffer tube (52) is arranged on the base (1), two ends of the discharge pipe (51) are respectively communicated with the discharge hole and the inside of the buffer tube (52), the housing four (53) is concentrically wrapped on the outer wall of the buffer tube (52) and forms a cavity four (56) with the outer wall of the buffer tube (52), a plurality of air inlets three (58) are formed in the circumferential direction of the buffer tube (52), the air inlets three (58) are communicated with the cavity four (56), the housing four (53) is provided with an air inlet pipe three (57) communicated with the cavity four (56), the filter plate two (54) is concentrically arranged on the upper side of the buffer tube (52), the cover plate (55) is used for sealing the top of the buffer tube (52), and a through hole is formed in the cover plate (55).

Description

Boric acid drying equipment Technical Field The invention relates to the technical field of boric acid processing, in particular to boric acid drying equipment. Background Boric acid is an important inorganic chemical raw material and is widely applied to the fields of glass, ceramics, metallurgy, medicine, cosmetics, flame retardants and the like. In the production process of boric acid, the product obtained by chemical reaction or extraction from natural boron sand ore is usually a wet-based boric acid (filter cake or slurry) containing a large amount of free water, and a drying process is necessary to remove the water so as to obtain a stable powdery or crystalline boric acid product meeting the industry standard. In the related art, most of the devices for drying boric acid in the current industrial production are general-purpose drying devices, for example: The box dryer or the tray dryer has simple structure and low investment cost, and is commonly used for small batch or intermittent production. However, such equipment has long drying time due to static accumulation of materials, the bottom layer materials are easy to overheat and deteriorate, the upper layer materials may not be thoroughly dried, and the uniformity of product quality is poor. The roller dryer can realize continuous operation and has larger treatment capacity. However, when boric acid is dried, materials are easy to adhere and scar on the inner wall of the roller, so that the heat transfer efficiency is reduced, frequent shutdown and cleaning are required, and the stability of continuous production is affected. To this end, we propose a boric acid drying apparatus. Disclosure of Invention The invention provides boric acid drying equipment, which solves the technical problems that in the related art, the drying time is long, the bottom material is easy to overheat and deteriorate, the upper material is possibly not thoroughly dried, the uniformity of the product quality is poor, and the material is easy to adhere to the inner wall of a roller. The invention provides boric acid drying equipment which comprises a base, a first drying component, a second drying component and a stirring and air drying component, wherein the first drying component comprises a drying pipe I and a shell I, the shell I is concentrically arranged on the outer wall of the drying pipe I and forms a cavity I with the outer wall of the drying pipe I, a plurality of air inlets which are upwards inclined are formed in the circumferential direction of the lower side of the drying pipe I, the air inlets are communicated with the cavity I, an air inlet pipe I communicated with the cavity I is arranged on the shell I, the second drying component is arranged on the base and comprises a drying pipe II, a heating component and a stirring and air drying component, the drying pipe II is arranged in a concentric manner with the drying pipe, the top of the drying pipe II is communicated with the bottom of the drying pipe I, the heating component is arranged on the outer wall of the drying pipe II and is used for heating the drying pipe II, a discharging hole is formed in the lower side of the drying pipe II, the stirring and air drying component comprises an air supply shaft, a plurality of blade groups and a power component, the air supply shaft is coaxially arranged in the drying pipe II, the air supply shaft is axially provided with a flow passage, the blade groups are axially arranged along the air supply shaft, the air supply shaft is axially arranged at intervals, the blade groups comprise a plurality of blade bodies, the blade bodies are communicated with the air outlet channels, and the blade groups are arranged on the blade bodies, and are communicated with the air outlet of the air supply shaft, and are arranged. As a further improvement of the invention, the boric acid drying device further comprises a butterfly valve, wherein the top and the bottom of the butterfly valve are respectively and fixedly connected with the bottom of the first drying pipe and the top of the second drying pipe, and the butterfly valve is used for controlling the communication between the first drying pipe and the second drying pipe. The first drying component comprises a second shell and an annular first filter plate, wherein the first filter plate and the drying pipe are arranged together, the upper side and the lower side of the first filter plate are respectively attached to the bottom of the upper segment and the top of the lower segment, the second shell is arranged on the outer side of the first filter plate and forms a second cavity with the first filter plate, an exhaust pipe communicated with the second cavity is arranged on the second shell, and the second shell is fixedly connected with the upper segment and the lower segment. As a further improvement of the invention, the upper section is provided with a plurality of air inlets II which incline downwards in the circumferential