CN108043055B

CN108043055B - A mud atomization drying equipment for electroceramic production

Info

Publication number: CN108043055B
Application number: CN201711306178.9A
Authority: CN
Inventors: 刘昆
Original assignee: Jiangxi Pingxiang Nankang High Voltage Ceramic Co ltd
Current assignee: Jiangxi Pingxiang Nankang High Voltage Ceramic Co ltd
Priority date: 2017-12-11
Filing date: 2017-12-11
Publication date: 2020-09-11
Anticipated expiration: 2037-12-11
Also published as: CN108043055A

Abstract

The invention discloses slurry atomization drying equipment for electroceramic production, and belongs to the field of electroceramic production equipment. The utility model provides a mud atomizing drying equipment for electroceramic production includes the box, be equipped with dry storehouse from top to bottom in the box in proper order, go out the feed bin, the screening storehouse, dry storehouse upper portion is provided with the circular shape and spouts the wind section of thick bamboo, it evenly is equipped with a plurality of exhaust vents to spout the wind section of thick bamboo bottom, it is provided with a plurality of vertical inlet pipes to spout wind section of thick bamboo below, the end correspondence of each inlet pipe is connected with a horizontally discharging pipe respectively, each discharging pipe all is cyclic annular, and be in the coplanar, the common centre of a circle, the diameter of each discharging pipe is from the outside crescent in center in dry storehouse, evenly be equipped with the discharge opening on each discharging pipe, the discharge opening is connected with atomizing nozzle, it is equipped with a plurality of air outlets to. The slurry atomization drying equipment for electroceramic production disclosed by the invention can be used for carrying out atomization drying on batch slurry, and is uniform in drying and high in working efficiency.

Description

A mud atomization drying equipment for electroceramic production

Technical Field

The invention relates to the field of electric porcelain production equipment, in particular to slurry atomization drying equipment for electric porcelain production.

Background

The powder obtained by the spray drying equipment, such as slurry powder, has the characteristics of uniform particles, uniform water content, good fluidity and the like, ensures that the internal stress of the electric porcelain product is relatively uniform, the spray drying equipment is one of necessary equipment in the current electric porcelain production process, and the performance of the spray drying equipment directly influences the yield and the quality of the slurry powder and the quality of the electric porcelain product. The existing slurry atomization drying equipment has the problems of uneven drying, low working efficiency and incapability of screening slurry powder.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the slurry atomization drying equipment for the production of the electric porcelain, which can be used for carrying out atomization drying on batch of slurry, is uniform in drying and high in working efficiency, and can be used for screening the slurry powder subjected to the atomization drying and ensuring the consistency of slurry powder particles.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides slurry atomization drying equipment for electroceramic production, which comprises a box body, wherein a drying bin, a discharging bin and a screening bin are sequentially arranged in the box body from top to bottom, a circular air spraying cylinder is arranged at the upper part of the drying bin, a plurality of air outlet holes are uniformly formed in the bottom of the air spraying cylinder, a hot air pipeline is connected to the top of the air spraying cylinder, a heater and a first fan are arranged on the hot air pipeline, a plurality of vertical feed pipes are arranged below the air spraying cylinder, each feed pipe is communicated with a liquid inlet pipe, the liquid inlet pipe is communicated with a slurry tank, a booster pump is arranged on the communicated pipeline, a metering pump is arranged on each feed pipe, a horizontal discharge pipe is correspondingly connected to the tail end of each feed pipe, each discharge pipe is annular and is positioned on the same plane and has a common center, and the diameter of each discharge pipe is gradually increased from the center of the drying bin outwards, discharge holes are uniformly formed in each discharge pipe, each discharge hole is connected with an atomizing nozzle, and due to the fact that the diameters of the discharge pipes are different, each metering pump (225) can accurately control the flow of slurry introduced into the corresponding discharge pipe (226), so that the size of slurry fog drops ejected from each atomizing nozzle (227) is consistent, and the consistency of the size of slurry powder particles is guaranteed; go out the feed bin lateral wall on the surrounding be equipped with a plurality of air outlets, each the air outlet all communicates with the air-out pipeline, be equipped with second fan, cartridge filter on the air-out pipeline, the cartridge filter pass through the pipeline with heater connection, it is equipped with the discharge gate to go out the feed bin bottom, the discharge gate with the intercommunication of the feed inlet in screening storehouse, be provided with the screen cloth in the screening storehouse, screening storehouse lateral wall in the screen cloth top is equipped with the large granule export, the large granule export with the upper surface parallel and level of screen cloth, screening storehouse lateral wall in the below of screen cloth is equipped with the tiny particle export, the tiny particle export with the diapire parallel and level in screening storehouse, screening storehouse lower part is equipped with the biography power board, be provided with vibrating.

In a preferred embodiment of the invention, two lifting cylinders are arranged above the box body, and the tail end of a piston rod of each lifting cylinder is provided with an arc-shaped scraper which is arranged to be tightly attached to the inner wall of the drying bin.

In a preferred embodiment of the invention, a stirring rod is arranged in the slurry tank, and stirring blades are arranged on the stirring rod.

In a preferred embodiment of the present invention, a filtering tank is further disposed on the liquid inlet pipe, the filtering tank is located between the slurry tank and the material inlet pipe, and a plurality of layers of filtering nets are disposed in the filtering tank.

In a preferred embodiment of the present invention, the diameter of the discharge port gradually decreases toward the direction close to the screen, a knocking hammer is disposed on a side wall of the discharge port, and a hitting portion of the knocking hammer is in clearance fit with the side wall of the discharge port.

In a preferred embodiment of the invention, a through hole aluminum honeycomb plate is arranged in the air injection cylinder.

In a preferred embodiment of the present invention, the outer wall of the box body is provided with a heating interlayer, the top and the bottom of the heating interlayer are respectively provided with a water outlet and a water inlet, the water outlet and the water inlet are both communicated with a water through pipe, and each water through pipe is provided with an electric valve.

In a preferred embodiment of the present invention, the filter cartridge includes a left side plate, a right side plate, and a front plate pivotally connected to the left side plate or the right side plate.

In a preferred embodiment of the present invention, at least two activated carbon plates are uniformly disposed inside the filter cartridge, the activated carbon plates are adapted to the shape of the filter cartridge, and at least two pairs of sliding grooves are disposed on the inner walls of the left side plate and the right side plate at positions opposite to each other.

The invention has the beneficial effects that:

according to the slurry atomization drying equipment for producing the electric porcelain, provided by the invention, the circular air spraying cylinder and the plurality of air outlet holes uniformly formed in the bottom of the air spraying cylinder are arranged, so that hot air is fully dispersed into the drying bin, and the contact chance with slurry fog drops is increased; the diameter of each discharging pipe is gradually increased from the center of the drying bin to the outside, and the discharging pipes are distributed in the drying bin in a dispersing manner, so that slurry fog drops sprayed by the atomizing nozzles are fully distributed in the drying bin, a large amount of slurry fog drops can be dried at one time, and can be fully contacted with hot air, and the drying efficiency is improved; each discharge pipe is annular and is positioned on the same plane and at the same center of a circle, so that slurry fog drops sprayed by each atomizing nozzle are contacted with hot air at the same time, and the drying quality of batch slurry fog drops is guaranteed; powder after mud droplets are dried by hot air enters the screen from the discharge port, and the screen screens the powder, so that the consistency of the particle size of the powder is ensured; the air outlet of the discharge bin is sequentially connected with the filter cartridge and the heater through pipelines, and waste gas flowing out of the air outlet passes through the filter box for impurity removal and filtration and then enters the drying bin again through the heater, so that waste heat in the waste gas is fully utilized.

Drawings

FIG. 1 is a schematic structural diagram of a slurry atomization drying device for electroceramic production provided in an embodiment of the invention;

fig. 2 shows the matching of the arc scraper, the air-jet cylinder and the drying bin.

In the figure:

100. a box body; 111. a lifting cylinder; 112. an arc-shaped scraper; 120. heating the interlayer; 121. a water outlet; 122. a water inlet; 123. an electrically operated valve; 200. a drying bin; 210. a wind spraying cylinder 211 and a wind outlet; 212. A hot air duct; 213. a heater; 214. a first fan; 215. a through hole honeycomb aluminum plate; 221. a feed pipe; 222. a liquid inlet pipe; 223. a mud pit; 224. a booster pump; 225. a metering pump; 226. a discharge pipe; 227. An atomizing nozzle; 228. a stirring rod; 229. a filter tank; 300. a discharging bin; 311. an air outlet pipeline; 312. a second fan; 313. a discharge port; 314. knocking hammers; 320. a filter cartridge; 321. an activated carbon plate; 322. A left side plate; 323. a right side plate; 324. a front plate; 325. a chute; 400. a screening bin; 411. screening a screen; 412. a large particle outlet; 413. a small particle outlet; 414. a force transmission plate; 415. a vibration motor.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1, a mud atomizing drying equipment of electroceramic production usefulness includes box 100, be equipped with dry storehouse 200, play feed bin 300, screening storehouse 400 from top to bottom in proper order in the box 100, dry storehouse 200 upper portion is provided with the circular shape and spouts wind section of thick bamboo 210, spout wind section of thick bamboo 210 bottom and evenly be equipped with a plurality of exhaust vents 211, it is connected with hot-blast pipeline 212 to spout wind section of thick bamboo 210 top, be equipped with heater 213 and first fan 214 on the hot-blast pipeline 212.

A plurality of vertical feeding pipes 221 are arranged below the air spray cylinder 210, each feeding pipe 221 is communicated with a liquid inlet pipe 222, the liquid inlet pipe 222 is communicated with a mud pit 223, a booster pump 224 is arranged on a communicating pipeline of the liquid inlet pipe 222, a metering pump 225 is arranged on each feeding pipe 221, the tail end of each feeding pipe 221 is correspondingly connected with a horizontal discharging pipe 226, each discharging pipe 226 is annular and is positioned on the same plane and concentric with the same center, the diameter of each discharging pipe 226 is gradually increased outwards from the center of the drying bin 200, discharging holes are uniformly arranged on each discharging pipe 226, and each discharging hole is connected with an atomizing nozzle 227. Because the diameters of the discharge pipes are different, the metering pumps 225 can accurately control the flow of the slurry introduced into the corresponding discharge pipe 226, so that the size of slurry fog drops ejected from the atomizing nozzles 227 is consistent, and the consistency of the size of slurry powder particles is guaranteed.

A plurality of air outlets are annularly arranged on the side wall of the discharge bin 300, each air outlet is communicated with an air outlet pipeline 311, a second fan 312 and a filter cartridge 320 are arranged on the air outlet pipeline 311, the filter cartridge 320 is connected with the heater 213 through a pipeline, the second fan 312 timely pumps away waste gas and water vapor in the drying bin 200, the heat exchange effect of the drying bin 200 is enhanced, and the drying bin 200 can be ensured to continuously and stably dry slurry fog drops; because the waste gas and the water vapor have a part of heat, the filter cartridge 320 removes impurities and filters the waste gas and the water vapor coming out from the air outlet, and the filtered waste gas enters the heater 213, so that the waste gas participates in the drying process of the next batch of slurry droplets, and the waste heat in the waste gas is fully utilized.

Go out feed bin 300 bottom and be equipped with discharge gate 313, discharge gate 313 pass through the pipeline with the intercommunication of the feed inlet of screening storehouse 400, be provided with screen cloth 411 in the screening storehouse 400, screening storehouse 400 lateral wall in the screen cloth 411 top is equipped with large granule export 412, large granule export 412 with the upper surface parallel and level of screen cloth 411, screening storehouse 400 lateral wall in screen cloth 411 below is equipped with tiny particle export 413, tiny particle export 413 with the diapire parallel and level of screening storehouse 400, screening storehouse 400 lower part is equipped with dowel plate 414, be provided with vibrating motor 415 on the dowel plate 414, through screen cloth 411 screens the mud powder.

In the slurry atomization drying device for producing the electroceramic, the bottom of the circular air spraying barrel 210 is uniformly provided with the plurality of air outlet holes, so that hot air is fully dispersed into the drying bin 200, and the contact chance of slurry fog drops is increased; the diameters of the discharge pipes 226 are gradually increased from the center of the drying chamber 200 to the outside, the internal space of the drying chamber 200 is fully utilized, and the discharge pipes 226 are distributed in the drying chamber 200 in a dispersing manner, so that slurry fog drops sprayed by the atomizing nozzles 227 are fully distributed in the drying chamber 200, a large amount of slurry fog drops can be dried at one time, the slurry fog drops are not influenced, a large amount of slurry fog drops can be fully contacted with hot air, and the drying efficiency is improved; the discharge pipes 226 are positioned on the same plane, so that slurry fog drops ejected by the atomizing nozzles 227 are contacted with hot air at the same time, the drying quality of the slurry fog drops in batches is guaranteed, and excessive drying or insufficient drying of part of the slurry fog drops is effectively avoided; slurry powder obtained after slurry fog drops are dried by hot air enters the screen from the discharge hole, and the screen screens the slurry powder, so that the consistency of the particle sizes of the slurry powder is guaranteed; after the waste gas flowing out of each air outlet is subjected to impurity removal and filtration by the filter cartridges 320, the waste gas enters the drying bin 200 again through the heater 213, and the waste heat in the waste gas is fully utilized.

As shown in fig. 1 and fig. 2, further, two lifting cylinders 111 are disposed above the box 100, an arc scraper 112 is disposed at a piston rod end of each lifting cylinder 111, and the arc scraper 112 is disposed to be closely attached to an inner wall of the drying chamber 200; after the drying chamber 200 works for a period of time, a small amount of slurry powder adheres to the inner wall of the drying chamber 200, which causes uneven raw material components and waste of raw materials, so the lifting cylinder 111 is arranged to drive the arc scraper 112 to move up and down along the inner wall of the box 100, so as to scrape off the slurry powder adhered to the inner wall of the box 100, and the slurry powder scraped by the arc scraper 112 falls onto the screen 411 from the discharge port 313.

Further, a stirring rod 228 is arranged in the slurry pool 223, and stirring blades are arranged on the stirring rod 228; the stirring rod 228 stirs the slurry in the slurry pool 223, so as to accelerate the flow rate of the slurry, effectively prevent the slurry from caking, and meanwhile, the stirring rod is beneficial to continuously and stably feeding the slurry to the feeding pipe 221, thereby ensuring that the box 100 can continuously work.

Further, a filter tank 229 is further arranged on the liquid inlet pipe 222, the filter tank 229 is located between the mud pit 223 and the feed pipe 221, and a plurality of layers of filter screens are arranged in the filter tank 229; the slurry is doped with impurities such as scrap iron and the like, which easily causes the quality problem of the finished product of the electric porcelain, and the filter tank 229 is arranged to filter and remove impurities from the slurry.

Furthermore, the diameter of the discharge port 313 is gradually reduced towards the direction close to the screen 411, and the discharge port 313 is arranged obliquely, so that the accumulation of slurry powder at the corners of the discharge bin 300 can be effectively reduced, and the difficulty in cleaning the slurry powder is reduced; the side wall of the discharge port 313 is provided with a knocking hammer 314, a hitting portion of the knocking hammer 314 is in clearance fit with the side wall of the discharge port 313, slurry powder dried by hot air is easily adhered to the inner wall of the discharge port 313, the slurry powder is easily agglomerated after being cleaned for a long time and is accumulated on the inner wall of the discharge bin 300, the discharge port 313 is blocked, the discharge speed of the slurry powder is influenced, the slurry powder is not easy to clean, and the later cleaning strength is improved. The knocking hammer 314 is arranged to clean slurry powder adhered to the inner wall of the discharge hole 313, and the knocking times of the knocking hammer 314 are determined according to actual production conditions.

Furthermore, a through hole honeycomb aluminum plate 215 is arranged in the air blowing cylinder 210, so that the air flow in the air blowing cylinder 210 is dispersed, the air flow entering the air outlet holes 211 is uniform, the local air flow is prevented from concentrating and impacting the air blowing cylinder 210, and the vibration of the air blowing cylinder 210 is reduced.

Further, a heating interlayer 120 is arranged on the outer wall of the drying bin 200, a water outlet 121 and a water inlet 122 are respectively arranged at the top and the bottom of the heating interlayer 120, the water outlet 121 and the water inlet 122 are both communicated with a water through pipe, and each water through pipe is provided with an electric valve 123; in the working process of the drying chamber 200, a small part of the slurry droplets ejected by the atomizing nozzles 227 can be adhered to the inner wall of the drying chamber 200, because the temperature of the inner wall of the drying chamber 200 and the edge thereof is lower than the central temperature of the drying chamber 200, the droplets adhered to the inner wall of the drying chamber 200 and the slurry droplets at the edge of the inner wall of the drying chamber 200 are difficult to dry, so that the drying is uneven and the raw materials are wasted, and therefore the heating interlayer 120 is arranged to heat the drying chamber 200, which is beneficial to the uniformity of the drying of the slurry droplets.

Further, the filter cartridge 320 includes a left side plate 322, a right side plate 323, and a front plate 324, wherein the front plate 324 is pivotally connected to the left side plate 322 or the right side plate 323; the front plate 324 is pivotally connected to the left side plate 322 or the right side plate 323, so that the front plate 324 can be stably combined with the left side plate 322 or the right side plate 323, the front plate 324 can be conveniently detached, and the elements of the filter cartridge 320 can be conveniently replaced.

Further, at least two activated carbon plates 321 are uniformly arranged inside the filter cartridge 320, the activated carbon plates 321 are matched with the filter cartridge 320 in shape, and at least two pairs of sliding grooves 325 are formed in the positions, opposite to each other, of the inner wall of the left side plate 322 and the inner wall of the right side plate 323; impurities, moisture, and the like in the hot air are sufficiently absorbed by the activated carbon plate 321, and the filtered hot air can be re-introduced into the heater 213. The front plate 324 is easily disassembled to replace the activated carbon plate 321, and the sliding groove 325 is provided to facilitate the installation of the activated carbon plate 321.

The working principle of the invention is as follows:

the first fan 214 and the heater 213 are started to preheat the drying bin 200, the electric valve 123 is opened to supply hot water to the heating interlayer 120, the stirring rod 228 stirs the slurry in the slurry pool 223, the booster pump 224, the metering pump 225 and the vibrating motor 415 are started, the slurry flows through the slurry pool 223, the filtering tank 229, the feeding pipe 221 and the discharging pipe 226 and is sprayed into the drying bin 200 from each atomizing nozzle 227, the slurry fog drops are dried by hot air, the dried slurry enters the screen mesh through the discharging port 313, and the screen mesh 411 screens the slurry powder.

When the drying chamber 200 works for a set drying time, the second fan 312 is started, the exhaust gas and the moisture in the drying chamber 200 enter the filter cartridge 320 from the air outlet, are filtered and purified by the activated carbon plate 321, enter the heater 213, and enter the drying chamber 200 again.

When the drying bin 200 works for a period of time, the lifting cylinder 111 is started, and the arc-shaped scraper 112 scrapes off slurry powder adhered to the inner wall of the drying bin 200; starting the knocking hammer 314 to shake off the slurry powder adhered to the inner wall of the discharge hole 313; the working time and frequency of the arc-shaped scraper 112 and the knocking hammer 314 can be determined according to the production site conditions.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a mud atomizing drying equipment of electroceramics production usefulness which characterized in that:

the drying device comprises a box body (100), wherein a drying bin (200), a discharging bin (300) and a screening bin (400) are sequentially arranged in the box body (100) from top to bottom, a round air spraying cylinder (210) is arranged at the upper part of the drying bin (200), a plurality of air outlet holes (211) are uniformly formed in the bottom of the air spraying cylinder (210), a hot air pipeline (212) is connected to the top of the air spraying cylinder (210), and a heater (213) and a first fan (214) are arranged on the hot air pipeline (212);

a plurality of vertical feeding pipes (221) are arranged below the air spray cylinder (210), each feeding pipe (221) is communicated with a liquid inlet pipe (222), the liquid inlet pipe (222) is communicated with a mud pit (223), a booster pump (224) is arranged on a communication pipeline, a metering pump (225) is arranged on each feeding pipe (221), the tail end of each feeding pipe (221) is correspondingly connected with a horizontal discharging pipe (226), each discharging pipe (226) is annular and is positioned on the same plane and concentric with the same circle center, the diameter of each discharging pipe (226) is gradually increased from the center of the drying bin (200), each discharging pipe (226) is uniformly provided with a discharging hole, each discharging hole is connected with an atomizing nozzle (227), and because the diameters of the discharging pipes are different, the flow rate of mud introduced into the discharging pipe corresponding to the discharging pipe (226) can be accurately controlled by each metering pump (225), the consistency of the sizes of mud fog drops sprayed out of the atomizing nozzles (227) is ensured, and the consistency of the sizes of mud powder particles is ensured;

a plurality of air outlets are arranged on the side wall of the discharging bin (300) in an encircling manner, each air outlet is communicated with an air outlet pipeline (311), a second fan (312) and a filter cartridge (320) are arranged on the air outlet pipeline (311), and the filter cartridge (320) is connected with the heater (213) through a pipeline;

go out feed bin (300) bottom and be equipped with discharge gate (313), discharge gate (313) with the intercommunication of the feed inlet of screening storehouse (400), be provided with screen cloth (411) in screening storehouse (400), screening storehouse (400) lateral wall in screen cloth (411) top is provided with large granule export (412), the bottom of large granule export (412) with the upper surface parallel and level of screen cloth (411), screening storehouse (400) lateral wall in screen cloth (411) below sets up tiny particle export (413), the bottom of tiny particle export (413) with the diapire parallel and level of screening storehouse (400), screening storehouse (400) lower part is equipped with biography power board (414), be provided with vibrating motor (415) on biography power board (414).

2. The mud atomizing and drying equipment for electroceramic production according to claim 1, characterized in that:

two lifting cylinders (111) are arranged above the box body (100), an arc-shaped scraper (112) is arranged at the tail end of a piston rod of each lifting cylinder (111), and the arc-shaped scraper (112) is tightly attached to the inner wall of the drying bin (200).

3. The mud atomizing and drying equipment for electroceramic production according to claim 1, characterized in that:

a stirring rod (228) is arranged in the slurry pool (223), and stirring blades are arranged on the stirring rod (228).

4. The mud atomizing and drying equipment for electroceramic production according to claim 1, characterized in that:

the liquid inlet pipe (222) is also provided with a filter tank (229), the filter tank (229) is positioned between the mud pit (223) and the feed pipe (221), and the filter tank (229) is internally provided with a plurality of layers of filter screens.

5. The mud atomizing and drying equipment for electroceramic production according to claim 1, characterized in that:

the diameter of the discharge hole (313) is gradually reduced towards the direction close to the screen (411), a knocking hammer (314) is arranged on the side wall of the discharge hole (313), and a hitting portion of the knocking hammer (314) is in clearance fit with the side wall of the discharge hole (313).

6. The mud atomizing and drying equipment for electroceramic production according to claim 1, characterized in that:

and a through hole honeycomb aluminum plate (215) is arranged in the air spray cylinder (210).

7. The mud atomizing and drying equipment for electroceramic production according to claim 1, characterized in that:

the heating box is characterized in that a heating interlayer (120) is arranged on the outer wall of the box body (100), a water outlet (121) and a water inlet (122) are respectively arranged at the top and the bottom of the heating interlayer (120), the water outlet (121) and the water inlet (122) are respectively communicated with a water through pipe, and an electric valve (123) is arranged on each water through pipe.

8. The mud atomizing and drying equipment for electroceramic production according to claim 1, characterized in that:

the filter cartridge (320) comprises a left side plate (322), a right side plate (323) and a front plate (324), wherein the front plate (324) is pivoted with the left side plate (322) or the right side plate (323).

9. The mud atomizing and drying equipment for electroceramic production according to claim 8, characterized in that:

at least two activated carbon plates (321) are uniformly arranged in the filter cartridge (320), the activated carbon plates (321) are matched with the filter cartridge (320) in shape, and at least two pairs of sliding grooves (325) are formed in the positions, opposite to each other, of the inner wall of the left side plate (322) and the inner wall of the right side plate (323).