CN202032848U - Spray drying tower for pulverizing - Google Patents
Spray drying tower for pulverizing Download PDFInfo
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- CN202032848U CN202032848U CN2010206281650U CN201020628165U CN202032848U CN 202032848 U CN202032848 U CN 202032848U CN 2010206281650 U CN2010206281650 U CN 2010206281650U CN 201020628165 U CN201020628165 U CN 201020628165U CN 202032848 U CN202032848 U CN 202032848U
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Abstract
The utility model discloses a spray drying tower for pulverizing, which comprises a tower body. The tower is provided with a hot air supplying device, an air discharging device and a supplied slurry atomizing device. The bottom of the tower body is provided with a powder outlet. The hot air supplying device comprises a plurality of tower-entering air openings arranged on the inner sidewalls of the middle part and the lower part of the tower body. The hot air entering the tower is subject to a gradual temperature decrease from the bottom to the top. An air discharging opening of the air discharging device is equipped on the upper part of the tower body. The reverse-flow type structural design adopted in the utility model enables slurry inside the tower to first contact low-temperature hot air and then encounter with medium-temperature hot air and high-temperature hot air before solid spherical powder particles are generated. Therefore, the technical problems existing in the prior art are effectively solved and improved. The spray drying tower which can make full use of waste heat, lower the energy consumption and reduce the emission can achieve technical effects of improving press forming efficiency of ceramic powder which is obtained after processed by the spray drying tower, increasing the strength of blanks, reducing firing contraction and decrease shaping edging operations, etc. The spray drying tower in the utility model is also suitable for other spray drying pulverizing technologies.
Description
Technical field
The utility model belongs to the spray drying technology field, is specifically related to a kind of powder process spray drying tower.
Background technology
The powder such as the ceramic powder that obtain by spray drying tower have characteristics such as meticulous, that moisture content is stable, the internal stress of having guaranteed ceramic product is more even, therefore, spray drying tower is one of equipment necessary in the present ceramic production technology, its performance directly has influence on the output and the quality of powder, be related to energy consumption and environmental protection, and to the dark tool influence of everyways such as the quality of final products, cost.
Existing ceramic powder process is mixed-flow with spray drying tower, its structure mainly is that hot wind supply device, air exhausting device, confession slurry atomising device and powder outlet are set on a tower body, the hot wind supply device go into the cat head that the tower air port is provided with tower body, the exhaust outlet of air exhausting device is arranged on the middle and lower part sidewall of tower body, atomizer for the slurry atomising device is arranged on the interior middle part of tower body, and powder outlet is arranged on the bottom of tower body.Its process characteristic is that the high-temperature hot-air of hot wind supply device is concentrated from cat head and entered, and mud is carried by the single person in charge for the slurry atomising device, and upwards spray at the middle part in tower body, mud at first contacts with high-temperature hot-air, descend then with the wind, progressively experience the low temperature hot blast, discharge by powder outlet at last.Yet there are the following problems for the spray drying tower of this kind structure:
1, EAT height is difficult to utilize the waste heat wind of relevant device discharging such as kiln;
2, the rapid expansion explosion of powder produces a large amount of fine powders, has reduced the utilization rate that mud is made qualified powder;
3, the toxic emission dust content is big, has increased the investment of cleaner and the energy consumption of relevant device;
4, the single person in charge of mud carries, and grain composition is difficult to control;
5, powder is a hollow body, and capacity is big during compression moulding, has reduced compacting efficient;
6, blank forming density is low, weak strength, and the course of conveying breakage rate is big;
7, the sintering procedure shrinkage factor is big, and the product distortion is big;
8, the semi-finished product on shaver tarry matter limit, the edging amount of scraping is bigger.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art part, and a kind of powder process spray drying tower that adopts reverse-flow structural design is provided.
For achieving the above object, the technical solution of the utility model is as follows:
The powder process spray drying tower comprises a tower body, and tower body is provided with hot wind supply device, air exhausting device and supplies the slurry atomising device, and the bottom of tower body is provided with powder outlet; Described hot wind supply device some go into the tower air port and are arranged on the madial wall of tower body middle part and bottom, go into the tower hot blast from lower to upper temperature progressively reduce; The exhaust outlet of described air exhausting device is arranged on the top of tower body.
Further, described some atomizers for the slurry atomising device are arranged in the upper area of tower body inside.
Further, go into the hot blast equilibrium of tower for making same tangent plane, described hot wind supply device comprises hot air source and at least one warm-air pipe, and described warm-air pipe and hot air source are by pipeline connection and around the periphery wall that is arranged on tower body; Every warm-air pipe is provided with some hot blasts to be in charge of, and the end that every hot blast is in charge of is communicated with warm-air pipe, and its other end is formed into the tower air port in the sidewall of tower body.Further, for making temperature, air quantity and the adjustable in pressure control into the tower hot blast, the pipeline between described warm-air pipe and the hot air source is provided with a balance wind pipe, and every warm-air pipe is communicated with balance wind pipe by at least one adjustable pipe.
As preferably, every adjustable pipe is provided with volume control device.
As preferably, described balance wind pipe is around the periphery wall that is arranged on tower body.
As preferably, described at least one warm-air pipe is divided into hot blast main and time warm-air pipe, the tower air port of going into of described hot blast main is arranged on spray drying tower tower body lower, outer perimeter wall, and the tower air port of going into of described warm-air pipe is arranged on the spray drying tower tower body periphery wall that hot blast main is gone into top, tower air port.
For preventing that the mud droplet from sticking on the tower body inwall, described hot wind supply device also comprises an antiseized wall device, this antiseized wall device comprises that antiseized wall air main and some are in charge of, and antiseized wall air main is around being arranged on time spray drying tower tower body periphery wall of warm-air pipe top and being communicated with a hot air source by pipeline; Every an end of being in charge of is communicated with antiseized wall air main, and its other end is provided with tuyere and tangentially is arranged on the internal perisporium of tower body.Described hot air source is the hot blast from inferior warm-air pipe, or other hot air source.
As preferably, describedly comprise for slurry source and at least one main slurry pipe for the slurry atomising device, described main slurry pipe with for the slurry source by pipeline connection and around the periphery wall that is arranged on the spray drying tower tower body; Every main slurry pipe is provided with some slip castings to be in charge of, and the end that every slip casting is in charge of is managed with main slurry and is communicated with, and its other end is provided with an atomizer and places spray drying tower tower body inside.
For regulating flow, the pressure of mud, reach the purpose of control powder grain composition, described master starches pipe and is provided with a balance slurry for the pipeline between the slurry source and manages, and every master's slurry pipe is starched pipe by at least one adjusting and is communicated with balance slurry pipe.
As preferably, regulate the slurry pipe for every and be provided with volume control device.
As preferably, described balance slurry pipe ring is around the periphery wall that is arranged on tower body.
The utility model is by adopting said structure, and its reverse-flow structural design at first contacts mud with the low temperature hot blast in tower, and temperature, high-temperature hot-air in the experience produce solid spherical powder successively, solves and improved the technical problem of prior art existence effectively.The utility model can make full use of waste heat, cuts down the consumption of energy, reduces discharging, and the ceramic powder that the wherethrough reason obtains can reach raising compression moulding efficient, increases blank strength, reduce to fire technique effects such as the contraction and the edging amount that reduces to scrape.The utility model also is applicable to other spray-drying flouring technology.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the perspective view of hot wind supply device described in the utility model.
Fig. 3 is the side-looking structural representation of hot wind supply device described in the utility model.
Fig. 4 is that the A-A of Fig. 3 is to the sectional structure schematic diagram.
Fig. 5 is that the B-B of Fig. 3 is to the sectional structure schematic diagram.
Fig. 6 is that the C-C of Fig. 3 is to the sectional structure schematic diagram.
Fig. 7 is that the D-D of Fig. 3 is to the sectional structure schematic diagram.
Fig. 8 is the perspective view for the slurry atomising device described in the utility model.
Fig. 9 is the side-looking structural representation for the slurry atomising device described in the utility model.
Figure 10 is the plan structure schematic diagram for the slurry atomising device described in the utility model.
Among the figure:
The 1-tower body; The 11-powder outlet; 2-hot wind supply device; The 21-balance wind pipe; The 211-hot-wind inlet; The 22-adjustable pipe; The 221-volume control device; The 23-warm-air pipe; The 231-hot blast main; 232-warm-air pipe; The 24-hot blast is in charge of; 241-goes into the tower air port; The antiseized wall air main of 25-; 251-communicating pipe; 252-is in charge of; The 253-tuyere; 3-is for the slurry atomising device; 31-balance slurry pipe; 311-slurry inlet; 32-regulates the slurry pipe; The 321-volume control device; 33-master starches pipe; 34-slip casting is in charge of; The 35-atomizer; The 4-air exhausting device; The 41-exhaust outlet.
Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:
The specific embodiment
As shown in Figure 1, ceramic powder process spray drying tower described in the utility model comprises a tower body 1, and the bottom of tower body 1 is provided with powder outlet 11, and the top of tower body is provided with the exhaust outlet 41 that is connected with air exhausting device 4.Also be provided with hot wind supply device 2 on the tower body 1 and supply slurry atomising device 3.
Hot wind supply device 2 comprises balance wind pipe 21 and two warm-air pipes 23, balance wind pipe 21 is connected with hot air source by pipeline, article two, warm-air pipe 23 respectively around the lateral wall of tower body 1 around middle part that is arranged on the tower body periphery wall and bottom, and be communicated with balance wind pipe 21 by an adjustable pipe 22 respectively.Corresponding every warm-air pipe 23 is provided with some hot blasts and is in charge of 24, and every hot blast is in charge of an end of 24 and is communicated with warm-air pipe, and its other end then is formed into the tower air port in the tower body madial wall.
Be arranged in the upper area of tower body 1 inside for some atomizers 31 of slurry atomising device 3.
During the utility model work, hot air source produces hot blast and is in charge of and goes into the tower air port through balance pipe, adjustable pipe, two warm-air pipes, hot blasts and enter in the tower body from the middle part and the bottom of tower body, and formation emptying hot blast from bottom to top flows in tower body, and temperature reduces from bottom to top gradually; And the mud that comes out in confession slurry source forms the mud drop through the atomizer for the slurry atomising device from the top ejection in the tower body, the mud drop moves from top to bottom, form the drying mode of counter current contacting with hot blast in the tower: the low temperature heated-air drying in tower at first in the descending process of mud drop, and then warm air-dry dry and dried by hot air stream at high temperature in the process, join at last the cold wind cooling in the circular cone tube of tower body bottom after, powder is discharged from the bottom of tower body.The mud drop can produce solid spherical powder through after this counter-current drying pattern drying, powder qualification rate height, and energy consumption is lower, and the hot air source waste heat wind that can adopt relevant device such as kiln to discharge.
In addition, for making temperature, air quantity and adjustable in pressure control and making same tangent plane go into the hot blast equilibrium of tower into the tower hot blast, and prevent that the mud droplet from sticking on the tower body inwall, hot wind supply device 2 described in the utility model can adopt as Fig. 2 to structure shown in Figure 7: this hot wind supply device 2 mainly by hot air source, balance wind pipe 21, some adjustable pipes 22, hot blast main 231, inferior warm-air pipe 232, some hot blasts be in charge of 24 and antiseized wall device form.Balance wind pipe 21 which is provided with hot-wind inlet 211 around the periphery wall that is arranged on tower body 1, and this hot-wind inlet 211 is connected with hot air source by pipeline.Hot blast main 231 is around on the tower body periphery wall that is arranged on balance wind pipe 21 belows, and be communicated with balance wind pipe 21 by some adjustable pipes 22, every adjustable pipe 22 is provided with a volume control device 221, body that should bar hot blast main 231 evenly is provided with some hot blasts is in charge of 24, every hot blast is in charge of an end of 24 and is communicated with hot blast main 231, and its other end then is formed into tower air port 241 in the madial wall of tower body 1.Inferior warm-air pipe 232 is around on the tower body periphery wall that is arranged on balance wind pipe 21 tops, also be communicated with balance wind pipe 21 by some adjustable pipes 22, also be provided with a volume control device 221 on every adjustable pipe 22, to should bar the body of time warm-air pipe 232 equally evenly be provided with some hot blasts and be in charge of 24, every hot blast is in charge of an end of 24 and is communicated with hot blast main, and its other end then is formed into tower air port 241 in the madial wall of tower body 1.Antiseized wall device mainly by an antiseized wall air main 25, some communicating pipes 251, some be in charge of 252 and tuyere 253 form: antiseized wall air main 25 is around the tower body periphery wall that is arranged on time warm-air pipe 232 tops, and by being communicated with inferior warm-air pipe 232 some communicating pipes 251; Be in charge of an end of 252 for every and be communicated with antiseized wall air main 25, tuyere 253 is located at every internal perisporium of being in charge of 252 the other end and tangentially being arranged on tower body.Volume control device door on the adjustable pipe that is communicated with by adjusting and hot blast main and time warm-air pipe, the air quantity that enters hot blast main and time warm-air pipe is regulated, thereby temperature, air quantity and the pressure of going into the tower hot blast are regulated and control, and the hot blast in hot blast main or the inferior warm-air pipe can balancedly enter tower body inside at same tangent plane.And the low temperature hot blast in the antiseized wall air main tangentially enters tower body inside through tuyere, forms tangential protection air curtain and also can the mud drop that stick to tower body internal upper part sidewall be removed, and prevents the generation of wall sticking phenomenon.For small-sized spray drying tower, the balance wind pipe of above-mentioned hot wind supply device is not necessary, only needs to use a warm-air pipe to be communicated with hot air source and gets final product.
Also have,, reach the purpose of control powder grain composition, described in the utility modelly can adopt as Fig. 8 to structure shown in Figure 10 for slurry atomising device 3 for adjusting enters flow, the pressure of the mud of drying tower.This confession slurry atomising device 3 mainly is made up of an end and several atomizers 35 of being in charge of 34 for slurry source, balance slurry pipe 31,32, three main slurry pipes 33 of some adjustings slurry pipe, some slip casting.Balance slurry pipe 31 which is provided with slurry inlet 311 around on the periphery wall that is arranged in tower body top, and this slurry inlet 311 is connected with supplying the slurry source by pipeline.Article three, main slurry pipe 33 is managed on the tower body periphery wall of 31 above and belows around being arranged on the balance slurry respectively, and is communicated with balance slurry pipe 31 by some adjusting slurry pipes 32 respectively, and every adjusting slurry pipe 32 is provided with a volume control device 321.Corresponding every Grouting Pipe 33 is equipped with some slip castings and is in charge of 34, and it is all parallel with the axis of tower body that 34 axis is in charge of in every slip casting, and the one end is communicated with Grouting Pipe 33, and its other end then is connected with a nozzle 35.By regulating the volume control device that every slip casting is in charge of, the mud spray volume of every group of atomizer is regulated, thereby the flow and the pressure of the mud that enters drying tower are regulated and control, and then reach the purpose of the grain composition of controlling out the tower powder.For small-sized spray drying tower, above-mentioned balance slurry pipe for the slurry atomising device is not necessary, only needs to use a main slurry pipe and supplies the slurry source to be communicated with to get final product.
Claims (13)
1. powder process spray drying tower, comprise a tower body, tower body is provided with hot wind supply device, air exhausting device and supplies the slurry atomising device, and the bottom of tower body is provided with powder outlet, it is characterized in that described hot wind supply device some go into the tower air port and are arranged on the madial wall of tower body middle part and bottom; The exhaust outlet of described air exhausting device is arranged on the top of tower body.
2. spray drying tower according to claim 1 is characterized in that, described some atomizers for the slurry atomising device are arranged in the upper area of tower body inside.
3. spray drying tower according to claim 1 and 2 is characterized in that, described hot wind supply device comprises hot air source and at least one warm-air pipe, and described warm-air pipe and hot air source are by pipeline connection and around the periphery wall that is arranged on tower body; Every warm-air pipe is provided with some hot blasts to be in charge of, and the end that every hot blast is in charge of is communicated with warm-air pipe, and its other end is formed into the tower air port in the sidewall of tower body.
4. spray drying tower according to claim 3 is characterized in that, the pipeline between described warm-air pipe and the hot air source is provided with a balance wind pipe, and every warm-air pipe is communicated with balance wind pipe by at least one adjustable pipe.
5. spray drying tower according to claim 4 is characterized in that every adjustable pipe is provided with volume control device.
6. according to claim 4 or 5 described spray drying towers, it is characterized in that described balance wind pipe is around the periphery wall that is arranged on tower body.
7. spray drying tower according to claim 6, it is characterized in that, described at least one warm-air pipe is divided into hot blast main and time warm-air pipe, the tower air port of going into of described hot blast main is arranged on spray drying tower tower body lower, outer perimeter wall, and the tower air port of going into of described warm-air pipe is arranged on the spray drying tower tower body periphery wall that hot blast main is gone into top, tower air port.
8. spray drying tower according to claim 7, it is characterized in that, described hot wind supply device also comprises an antiseized wall device, this antiseized wall device comprises that antiseized wall air main and some are in charge of, and antiseized wall air main is around being arranged on time spray drying tower tower body periphery wall of warm-air pipe top and being communicated with a hot air source by pipeline; Every an end of being in charge of is communicated with antiseized wall air main, and its other end is provided with tuyere and tangentially is arranged on the internal perisporium of tower body.
9. spray drying tower according to claim 8 is characterized in that, described hot air source is the hot blast from inferior warm-air pipe, or other hot air source.
10. spray drying tower according to claim 2 is characterized in that, describedly comprise for slurry source and at least one main slurry pipe for the slurry atomising device, described main slurry pipe with for the slurry source by pipeline connection and around the periphery wall that is arranged on the spray drying tower tower body; Every main slurry pipe is provided with some slip castings to be in charge of, and the end that every slip casting is in charge of is managed with main slurry and is communicated with, and its other end is provided with an atomizer and places spray drying tower tower body inside.
11. spray drying tower according to claim 10 is characterized in that, described master starches pipe and is provided with a balance slurry for the pipeline between the slurry source and manages, and every master's slurry pipe is starched pipe by at least one adjusting and is communicated with balance slurry pipe.
12. spray drying tower according to claim 11 is characterized in that, regulates the slurry pipe for every and is provided with volume control device.
13., it is characterized in that described balance slurry pipe ring is around the periphery wall that is arranged on the spray drying tower tower body according to claim 11 or 12 described spray drying towers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206281650U CN202032848U (en) | 2010-11-25 | 2010-11-25 | Spray drying tower for pulverizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206281650U CN202032848U (en) | 2010-11-25 | 2010-11-25 | Spray drying tower for pulverizing |
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| Publication Number | Publication Date |
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| CN202032848U true CN202032848U (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206281650U Expired - Lifetime CN202032848U (en) | 2010-11-25 | 2010-11-25 | Spray drying tower for pulverizing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979940A (en) * | 2010-11-25 | 2011-02-23 | 广东科达机电股份有限公司 | Spray drying tower for preparing powder |
| CN103043879A (en) * | 2012-12-20 | 2013-04-17 | 东南大学 | Equipment and method for drying sludge with flue gas |
| CN104567318A (en) * | 2014-12-12 | 2015-04-29 | 杭州高新橡塑材料股份有限公司 | System and method for automatically drying rubber particles and separating and drying powder |
| CN113209907A (en) * | 2021-06-04 | 2021-08-06 | 江西斯米克陶瓷有限公司 | Control method for ceramic spray drying tower |
-
2010
- 2010-11-25 CN CN2010206281650U patent/CN202032848U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979940A (en) * | 2010-11-25 | 2011-02-23 | 广东科达机电股份有限公司 | Spray drying tower for preparing powder |
| CN103043879A (en) * | 2012-12-20 | 2013-04-17 | 东南大学 | Equipment and method for drying sludge with flue gas |
| CN104567318A (en) * | 2014-12-12 | 2015-04-29 | 杭州高新橡塑材料股份有限公司 | System and method for automatically drying rubber particles and separating and drying powder |
| CN113209907A (en) * | 2021-06-04 | 2021-08-06 | 江西斯米克陶瓷有限公司 | Control method for ceramic spray drying tower |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111109 Effective date of abandoning: 20130605 |
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| RGAV | Abandon patent right to avoid regrant |