CN-122006651-A - Stirring mill type powder reactor for processing calcium hydroxide with high specific surface area

CN122006651ACN 122006651 ACN122006651 ACN 122006651ACN-122006651-A

Abstract

The invention discloses a stirring mill type powder reactor for processing calcium hydroxide with high specific surface area, and relates to the technical field of calcium hydroxide processing equipment. The reactor comprises a mounting base, wherein a stirring and grinding box and a reaction box are arranged on the mounting base, a stirring and grinding crushing assembly and a mixed reaction assembly are respectively arranged in the stirring and grinding box, high-activity calcium oxide powder is put into the reaction box through a feeding box, water solution and dispersing agent supplied by the two proportioning boxes are transferred to a reaction rotary drum through transfer, a stirring plate is matched for realizing full reaction, and reacted materials enter the stirring and grinding rotary drum through a blanking pipe, are crushed by spiral stirring and grinding blades and grinding tooth blocks and are output through a conveying mechanism. The invention adopts an integrated structure, combines temperature control, sealing and pulse air supply design, improves mixing uniformity and reaction efficiency, refines powder particle size, and helps to prepare high specific surface area calcium hydroxide, and has compact structure, convenient operation and strong practicability.

Inventors

LIU YONGGE
LIU BING
WU YUZHE
TAN LEI
ZHANG XINGHUA
WANG CHAO
ZHU GUODONG
SU XINLEI

Assignees

山东万达环保科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260413

Claims (10)

1. The stirring mill type powder reactor for processing the calcium hydroxide with the high specific surface area is characterized by comprising a mounting base, wherein a stirring mill box is fixed on the upper surface of the mounting base, a stirring mill breaking assembly is arranged in the stirring mill box, a reaction box is fixed on the upper surface of the stirring mill box, and a mixing reaction assembly is arranged in the reaction box; Two upper supporting sleeves are fixed on the transverse inner wall of the reaction box, the mixed reaction assembly comprises a reaction rotary drum, and two ends of the reaction rotary drum are rotatably clamped on the two upper supporting sleeves; Three strip-shaped turning plates which are symmetrical in center are fixed on the inner peripheral wall of the reaction rotary drum; an upper air box communicated with the reaction box is fixed on the transverse outer wall of the reaction box, and a first pulse fan is fixed in the upper air box; a feeding seat is fixed on the transverse inner wall of the other side of the reaction box, an upper spray pipe and a lower dispersing pipe which transversely extend are fixed on the feeding seat, a plurality of transverse equidistant spray heads are arranged on the upper spray pipe, and a plurality of transverse equidistant atomizing nozzles are arranged on the lower dispersing pipe; Two lower supporting sleeves are fixed on the transverse inner wall of the stirring and grinding box, the stirring and grinding assembly comprises a stirring and grinding rotary drum, and two ends of the stirring and grinding rotary drum are rotationally clamped on the two lower supporting sleeves; A lower air box communicated with the horizontal outer wall of the stirring and grinding box is fixed on the horizontal outer wall of the stirring and grinding box, the lower air box is arranged on the opposite side of the upper air box, and a second pulse fan is fixed in the lower air box; A plurality of transversely extending grinding tooth blocks are stuck on the inner peripheral wall of the stirring and grinding rotary drum, a stirring and grinding rotary shaft is rotatably arranged in the stirring and grinding rotary drum, and spiral stirring and grinding blades are fixed on the stirring and grinding rotary shaft; The reaction rotary drum is communicated with the stirring and grinding rotary drum, and temperature control clamping plates are respectively sleeved on the peripheral walls of the reaction rotary drum and the stirring and grinding rotary drum.
2. The stirring mill type powder reactor for processing high-specific surface area calcium hydroxide according to claim 1, wherein the installation base is a square base which is horizontally arranged, the stirring mill box is a square box which is transversely extended and closed, and the reaction box is a square box which is transversely extended and closed; A feeding box is fixed on one side of the upper surface of the reaction box, the lower end of the feeding box is communicated with the reaction box, an opening at the upper end of the feeding box is arranged, and two swing cover plates are respectively hinged on the transverse outer walls of the two sides of the feeding box; Two proportioning boxes are fixed on the other side of the upper surface of the reaction box, wherein one proportioning box is filled with aqueous solution, and the other proportioning box is internally stored with powder dispersing agent; The reaction box is close to two be fixed with the drum transfer case on the horizontal outer wall of proportioning box one side, two the proportioning box is external two feed pipes respectively, two the end of feed pipe is fixed respectively and is linked together to the drum transfer case, correspond two in the drum transfer case the feed pipe is equipped with two sets of conveying pipeline respectively, two sets of conveying pipeline's end is fixed and is linked together to the feed seat.
3. The stirring mill type powder reactor for processing high-specific surface area calcium hydroxide according to claim 2, wherein a primary blanking pipe is fixed on one side of the inner top surface of the reaction box and is communicated with the feeding box; a feed inlet is formed in one side of the upper end of the reaction rotary drum, the feed inlet is opposite to the primary blanking pipe, and the lower end of the primary blanking pipe is tightly attached to the peripheral wall of the reaction rotary drum; A secondary blanking pipe is fixed on the inner bottom surface of one side of the reaction box, which is close to the cylindrical transfer box; the discharge hole is formed in one side of the lower end of the reaction rotary drum, the discharge hole is opposite to the secondary blanking pipe, and the upper end of the secondary blanking pipe is tightly attached to the peripheral wall of the reaction rotary drum.
4. The stirring mill type powder reactor for processing high-specific surface area calcium hydroxide according to claim 3, wherein an upper transmission gear ring is fixed on the outer wall of the middle section of the reaction rotary drum, an upper transmission box is fixed on the middle part of the upper surface of the reaction box opposite to the upper transmission gear ring, and the upper transmission box is communicated with the reaction box; The middle part of the upper surface of the reaction box is also fixed with a first transmission motor, the tail end of an output shaft of the first transmission motor extends into the upper transmission box and is fixed with an upper transmission gear, and an upper transmission chain is sleeved between the upper transmission gear and the upper transmission gear ring.
5. The stirring mill type powder reactor for processing high-specific surface area calcium hydroxide according to claim 4, wherein two temperature control clamping plates which are transversely symmetrical are sleeved on the peripheral wall of the reaction rotary drum, the temperature control clamping plates are arc-shaped plates, and the inner peripheral wall of the temperature control clamping plates is tightly attached to the peripheral wall of the reaction rotary drum; The two temperature control clamping plates are respectively arranged on two lateral sides of the upper transmission gear ring, the two temperature control clamping plates are respectively opposite to the feeding port and the discharging port, and the two temperature control clamping plates are respectively fixed on the longitudinal inner wall of the reaction box; two transversely symmetrical electric heating modules are fixed on the longitudinal outer wall of the reaction box, and the two electric heating modules are respectively and electrically connected with the two temperature control clamping plates.
6. The stirring mill type powder reactor for processing high-specific surface area calcium hydroxide according to claim 5, wherein a motor support seat is fixed on one lateral side of the upper surface of the installation base, a stirring mill driving motor is fixed on the motor support seat, the stirring mill driving motor is arranged on the opposite side of the second pulse fan, and the tail end of an output shaft of the stirring mill driving motor penetrates through the side wall of the stirring mill box and is fixed to the tail end of the stirring mill rotating shaft.
7. The stirring mill type powder reactor for processing high-specific surface area calcium hydroxide according to claim 6, wherein the temperature control clamping plate is sleeved at the middle part of the outer side of the stirring mill rotary drum, and the electric heating module electrically connected with the temperature control clamping plate is also fixed on the longitudinal outer wall of the stirring mill box; a third-stage blanking pipe is fixed on the inner top surface of the stirring and grinding box, and is arranged below and communicated with the second-stage blanking pipe; The upper end of the stirring and grinding rotary drum is provided with a material receiving opening, the material receiving opening is opposite to the three-stage blanking pipe, the lower end of the three-stage blanking pipe is tightly attached to the peripheral wall of the stirring and grinding rotary drum, and the temperature control clamping plate can seal the material receiving opening in the rotating process of the stirring and grinding rotary drum.
8. The stirring mill type powder reactor for processing the high-specific surface area calcium hydroxide according to claim 7, wherein a lower transmission gear ring is fixed on the peripheral wall of one side of the stirring mill rotary drum, which is close to the stirring mill driving motor, and a lower transmission case is fixed on one side of the upper surface of the stirring mill case and is communicated with the stirring mill case; A second transmission motor is further fixed on one side of the upper surface of the stirring and grinding box, the tail end of an output shaft of the second transmission motor extends into the lower transmission box and is fixedly provided with a lower transmission gear, and a lower transmission chain is sleeved between the lower transmission gear and the lower transmission gear ring; the lower end of the stirring and grinding rotary drum, which is close to one side of the lower transmission gear ring, is provided with a discharge hole.
9. The stirring mill type powder reactor for processing high specific surface area calcium hydroxide according to claim 8, wherein a conveying communication port is formed on the longitudinal side wall of the stirring mill box close to the lower end part; two conveying support plates which are transversely symmetrical and longitudinally extend are clamped in the conveying communication opening, the conveying support plates are U-shaped plates with downward openings, and two ends of the lower part of the conveying support plates are grounded; two conveying rotating rollers which are longitudinally symmetrical are rotationally arranged between the two conveying supporting plates, a conveying belt is sleeved between the two conveying rotating rollers, and the conveying belt is arranged below the discharge opening; And the tail end of an output shaft of the conveying driving motor penetrates through the conveying supporting plate and is fixed to the corresponding side end face of the conveying rotary roller.
10. The stirring mill type powder reactor for processing high specific surface area calcium hydroxide according to claim 9, wherein transparent windows are respectively arranged on the longitudinal outer walls of the reaction tank and the stirring mill tank.

Description

Stirring mill type powder reactor for processing calcium hydroxide with high specific surface area Technical Field The invention relates to the technical field of calcium hydroxide processing equipment, in particular to a stirring mill type powder reactor for processing calcium hydroxide with high specific surface area. Background The calcium hydroxide with high specific surface area is taken as an important inorganic chemical raw material, is widely applied to a plurality of fields of environmental protection, building materials, medicines, foods and the like, and the activity, purity and specific surface area of the product directly determine the application effect and the application scene. With the rapid development of downstream industries, the demand of the market for high-specific-surface-area calcium hydroxide is continuously increased, and higher requirements are simultaneously put forward on the quality, the production efficiency and the production cost of products. At present, the production of the high specific surface area calcium hydroxide mainly adopts a process route of hydration reaction of high-activity calcium oxide powder and subsequent crushing and grinding, but the existing production mode has a plurality of problems to be solved urgently. In terms of production flow, the hydration reaction and the crushing and grinding two core processes are mutually independent, and special transfer equipment is required to be arranged to transfer the reacted materials to the grinding equipment, so that the process flow is prolonged, the equipment investment is increased, material loss and external pollution are inevitably caused in the transfer process, the production continuity and the overall efficiency are severely restricted, and the requirement of large-scale production is difficult to meet. In the hydration reaction link, the existing equipment generally has the problem of insufficient reaction uniformity and sufficiency. Meanwhile, the adding mode of the aqueous solution and the powder dispersing agent is unreasonable, the aqueous solution and the powder dispersing agent cannot be fully contacted with the powder in a dynamic state, the situation of insufficient local reaction is easy to occur, and the generation effect of calcium hydroxide is influenced. In addition, the hydration reaction has higher temperature requirement, the accurate regulation and control of temperature is difficult to realize by the existing equipment, the forward progress of the reaction can be hindered by temperature fluctuation, the sealing performance of a feed inlet and a discharge outlet of the equipment is poor, the leakage of materials is easy to occur, and the activity and purity of the product are further reduced. In the crushing and grinding link, the crushing mode of the existing grinding equipment is single, a single grinding or stirring structure is adopted, a synergistic crushing effect cannot be formed, the crushing strength of the materials after hydration reaction is insufficient, the powder particle size refining effect is limited, and the specific surface area of calcium hydroxide is difficult to be obviously improved. Meanwhile, in the grinding process, powder is easy to agglomerate and agglomerate due to factors such as extrusion, temperature change and the like, the existing equipment lacks an effective blowing and dredging structure, so that materials flow in a grinding cavity is not smooth, the grinding uniformity is poor, and the temperature fluctuation in the grinding process is easy to change the powder characteristics, so that the product quality is further influenced. In the aspects of equipment operation and operation maintenance, the driving structure of the existing production equipment is unreasonable in design, the traditional transmission mode is mostly adopted, the stability is poor, the noise is large, the transmission efficiency is low, faults are easy to occur in the operation process, the whole structure layout of the equipment is loose, the occupied area is large, and inconvenience is brought to workshop layout planning. In addition, the equipment lacks a convenient observation and operation structure, operators cannot observe the reaction and grinding states of internal materials in real time, technological parameters are difficult to adjust in time, the sealing performance of a feeding link is poor, dust leakage is easy to generate, the production environment is polluted, finished product conveying relies on manual operation, the labor intensity of the operators is increased, the material loss in the conveying process is easy to occur, the whole operation convenience is insufficient, the equipment maintenance cost is high, and the production total cost is further increased. In summary, in the existing production process of the high specific surface area calcium hydroxide, the problems of long process flow, insufficient reaction uniformity, poor grinding effect, poor equipment