CN212127990U - Gypsum evaporation cooling aging tower - Google Patents
Gypsum evaporation cooling aging tower Download PDFInfo
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- CN212127990U CN212127990U CN202020588305.XU CN202020588305U CN212127990U CN 212127990 U CN212127990 U CN 212127990U CN 202020588305 U CN202020588305 U CN 202020588305U CN 212127990 U CN212127990 U CN 212127990U
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Abstract
The utility model discloses a gypsum evaporative cooling aging tower, the center of its barrel sets up the evaporating chamber, form the cooling room between barrel inner wall and the evaporating chamber outer wall, the evaporating chamber intercommunication aging chamber, the inside multilayer filler that is provided with multistage spraying system and heat exchange effect of evaporating chamber, spraying system is alternate interval layout with the filler, through utilizing and absorbing the partial heat that needs the cooling material, evaporate a certain amount of liquid water, the vapor after the evaporation is used for ageing this material, in order to reduce the volume of adopting the used air of full air cooling and ageing technology, reach the purpose of consumption reduction, especially to handling the building gypsum of high soluble anhydrous gypsum content, can calcine the field for the gypsum and have positive effect in the aspects such as production technology control, product quality is stable; because the cooling and aging functions are realized, the required installed power is far less than that of the existing cooling device after the gypsum calcining line.
Description
Technical Field
The utility model belongs to building material preparation field, concretely relates to calcine back building gypsum and carry out the equipment of rapid cooling ageing, especially the equipment of high soluble anhydrous calcium sulfate content's building gypsum rapid cooling ageing.
Background
In the production process of building gypsum powder, calcium sulfate dihydrate (gypsum) is calcined into calcium sulfate hemihydrate (plaster of Paris). However, the phase composition of gypsum is relatively complex, and the building gypsum powder immediately after calcination contains unstable or harmful phases such as a certain amount of soluble anhydrous calcium sulfate and a small amount of unreacted calcium sulfate dihydrate, in addition to the main component of calcium sulfate hemihydrate. In downstream application, particularly in plastering mortar application, due to the reasons of high content of soluble anhydrous calcium sulfate, fluctuation of three-phase composition along with time and the like, the problems of high slurry viscosity, instable setting time, easy cracking of products and the like can be caused, and the control of the calcination endpoint of the building gypsum and the improvement of the product quality are not facilitated. Therefore, after the gypsum is calcined, the gypsum is generally required to be subjected to aging treatment, the aging can convert soluble anhydrous gypsum generated by overburning into regenerated semi-hydrated gypsum, the composition proportion of beneficial phases is improved, meanwhile, the end point of a gypsum calcination process can be controlled to deviate towards the overburning direction, the high conversion rate of the dihydrate gypsum is realized as far as possible, and therefore, the production process and the physical performance of the building gypsum are improved, and the application quality of the product is improved.
With the increasingly widespread application of downstream plastering gypsum, the output of building gypsum as the main raw material of plastering gypsum is far from meeting the demand. Therefore, the supply and demand period of the building gypsum is greatly shortened, the building gypsum is often pulled away by downstream plastering gypsum manufacturers just after production, and the natural aging time is not needed, even the natural cooling time is not needed. The prior aging device is not beneficial to shortening the cooling time undoubtedly by introducing damp and hot air for aging.
Meanwhile, in order to calcine building gypsum with a larger yield, a calcined gypsum manufacturer usually increases the heat supply to achieve the purpose of increasing the yield. However, this causes problems such as insufficient burning or excessive burning due to an excessively high temperature, which is disadvantageous for the stability of the end point. For gypsum calcining manufacturers, firstly, the aim of full calcination is realized by ensuring thorough calcination; at the same time, the high content of soluble anhydrous gypsum is ensured after the 'burn-through' and the content of the soluble anhydrous gypsum is often more than 10 percent, even 20 percent, 30 percent or higher.
The existing gypsum cooling and aging device is mostly in the forms of a suspension bin, a mechanical bin dumping and a rotary drum according to the thirteenth national gypsum technical exchange congress and exhibition proceedings 2018.9 of the ninth annual meeting of the 2018 joint of building materials and the thirteenth national gypsum division P95-102 of aging and homogenizing process and equipment of building gypsum. The contact area of the materials and the air is small in the forms, the reaction intensity of unit volume is small, mechanical stirring or high-pressure air is needed for providing power, the utilization rate of equipment is low, and the energy consumption is high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a gypsum evaporative cooling aging tower that high-efficient cooling and low energy consumption are ageing.
In order to solve the technical problem, the utility model discloses a technical scheme be: a gypsum evaporation cooling aging tower comprises a cylinder, wherein a feed inlet is formed in the side part of the cylinder, an evaporation chamber is arranged in the center of the cylinder, a cooling chamber is formed between the inner wall of the cylinder and the outer wall of the evaporation chamber, and the evaporation chamber is communicated with an aging chamber; the cooling chamber is provided with a negative pressure air inlet and a feed inlet, pulse airflow is input into the negative pressure air inlet, the feed inlet is positioned at a high-speed airflow zone of the cooling chamber, and the pulse airflow is in an ascending running state so as to enable the gypsum materials to ascend and float to the aging chamber; a multi-stage spraying system and a plurality of layers of fillers with heat exchange function are arranged in the evaporation chamber, and the spraying system and the fillers are alternately arranged at intervals; the evaporation chamber is provided with an air inlet and an air outlet, and the aging chamber is positioned at the air outlet of the evaporation chamber; the aging chamber is provided with a flow guide piece.
Further, the side wall of the flow guide part is provided with flow guide vanes.
Furthermore, the flow guide piece is positioned above the air outlet of the evaporation chamber, the upper end and the lower end of the flow guide piece are conical, and the middle of the flow guide piece is cylindrical; the cylindrical side wall of the flow guide part is provided with a plurality of inclined flow guide blades.
Furthermore, one end of the guide vane is welded with the cylindrical barrel of the guide part, and the other end of the guide vane is welded on the inner wall of the barrel.
Further, the guide vanes are inclined at an angle of 45-60 degrees.
Furthermore, the air inlet is provided with a water collecting tank, and the water collecting tank is filled with filler with a water absorbing effect.
Further, the gas in the cooling chamber adopts pulse flow.
Further, a support frame used for installing a spraying system and a filler is arranged in the evaporation chamber.
Further, the spraying system and the number of layers of the filler can be freely combined.
Further, the water collecting tank is provided with a liquid level meter, and the liquid level meter can indicate the liquid level and can also discharge redundant water in the water collecting tank.
The technical scheme of the utility model is implemented, a certain amount of liquid water is evaporated by utilizing and absorbing partial heat of the material to be cooled, the evaporated water vapor is used for aging the material, so as to reduce the amount of air used by adopting full air cooling and aging process, and the purpose of consumption reduction is achieved, and especially for treating the building gypsum with high soluble anhydrous gypsum content, the utility model can produce positive effects in the aspects of production process control, stable product quality and the like in the gypsum calcination field; because the cooling and aging functions are realized, the required installed power is far less than that of the existing cooling device after the gypsum calcining line.
Drawings
FIG. 1 is a schematic structural diagram of a gypsum evaporative cooling aging tower.
Fig. 2 is a schematic structural view of the flow guide member.
Fig. 3 is a top view of fig. 2.
In the figure: 1-air inlet, 2-liquid level meter, 3-water absorption filler, 4-water collecting tank, 5-feed inlet, 6-heat exchange filler, 7-spraying system, 8-reinforcing plate, 9-evaporation chamber, 10-support frame, 11-inspection manhole, 12-cylinder, 13-hanging plate, 14-flow guide piece, 15-aging chamber, 16-air outlet, 17-flow guide blade, 18-cooling chamber, 19-fixing plate and 20-negative pressure air inlet.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in FIG. 1, the gypsum evaporative cooling aging tower is mainly composed of an evaporation chamber 9, a temperature reduction chamber 18 and an aging chamber 15. A temperature reducing chamber 18 is arranged between the evaporation chamber 9 and the cylinder 12, and an aging chamber 15 is arranged above the evaporation chamber 9.
The evaporation chamber 9 is provided with an air inlet 1, a spraying system 7, a heat exchange filler 6 and a support frame 10, wherein the air inlet 1 is positioned at the bottom of the evaporation chamber 9, and air is supplied into the system by a fan. A spraying system 7 is arranged to humidify air, and the air is air passing through the evaporation chamber. And a water collecting tank 4 is arranged at the bottom of the evaporation chamber and at the position of the air inlet 1 and used for collecting liquid water which is not evaporated after being sprayed. After the spraying water quantity is stable for a period of time, the change of the water level in the water collecting tank is observed, and the water level is stable by adjusting the spraying water quantity and adjusting a liquid outlet valve. The spraying system 7 performs uniform humidification at multiple points, and the gradient humidification ensures the humidification effect; the amount of humidification can be adjusted within a certain range. The water absorption filler 3 is arranged in a supporting leg type, can absorb accumulated water in the water collection tank 4, can keep the water collection tank at a certain liquid level, and is convenient for water level observation. The heat exchange filler 6 can increase the contact area of water and gas, enhance the humidification and heat exchange effects, and guide the airflow after the air is discharged from the top, so that the airflow rises along the rotation of the inner wall of the evaporation chamber 9. The rotary ascending air flow is characterized in that water mist humidification is enhanced, redundant unevaporated water mist is attached to the inner wall of the evaporation chamber 9 under the driving of cyclone wind to form a water film, the heat exchange effect of the water film is optimized, and the hot materials in the tower are cooled secondarily through dividing wall type heat exchange. The support frame 10 is arranged in the evaporation chamber 9, and can be provided with a heat exchange filler 6, a spraying system 7 and the like, so that the production, installation and maintenance are convenient.
The temperature reduction chamber 18 is provided with a negative pressure air inlet 20, a feed inlet 5 and an inspection manhole 11, and the aging chamber 15 is provided with a flow guide part 14 and an air outlet 16. The lower part of the evaporation chamber 9 is fixed with the bottom of the cylinder 12 through a fixing plate 19, and the flow guide member 14 is fixed through a hanging plate 13. The cavity part between the evaporation chamber 9 and the cylinder 12 is a temperature reduction chamber 18, the side wall of the cylinder 12 is provided with a feed inlet 5, the feed inlet 5 is positioned in a high-speed airflow region of the temperature reduction chamber 18, a plurality of high-speed airflow regions are arranged in the temperature reduction chamber 18, and the outer wall of the cylinder 12 at the high-speed airflow region is provided with a reinforcing plate 8 to reinforce the equipment strength. The outer wall of the cylinder 12 is provided with an inspection manhole 11 which is positioned below the flow guide piece 14.
As shown in fig. 2 and 3, the flow guiding member 14 is located right above the air outlet of the evaporation chamber 9, the upper and lower ends are conical, the middle is cylindrical, four inclined flow guiding blades 17 are arranged on the cylindrical side wall, one end of each flow guiding blade 17 is welded with the cylindrical barrel of the flow guiding member 14, and the other end is welded on the inner wall of the barrel 12. The guide vanes 17 form a certain angle with the horizontal direction, preferably an included angle of 45-60 degrees.
Above the flow guide 14 there is an aging chamber and at the aging chamber 15 there is an outlet 16 which can be connected by a flanged pulse aging column or a simplified version thereof.
The working process of the evaporative cooling aging tower is as follows: the hot materials enter the temperature reduction chamber 18 through the feeding hole 5, and pulse airflow is arranged in the temperature reduction chamber 18 to strengthen the solid-gas mixing effect. The cooling air flow enters through the negative pressure air inlet of the cooling chamber, the hot materials and the cold air are fully mixed in the cooling chamber 18, the heat exchange area of the mixing mode is large, and the materials are cooled for one time instantly. The material which is primarily cooled rises under the driving of the airflow and contacts with the wall body of the evaporation chamber 9 for secondary cooling.
The evaporation air current is sent into air intake 1 by the windy equipment, through the filler 3 that absorbs water, mix the humidification with spray set 7 spun atomizing drop, carry out the partition wall formula heat transfer through the 9 wall bodies of evaporating chamber, under the intensive effect of heat transfer filler 6, the area of contact of increase steam, strengthen the evaporation humidification effect, in passing through behind many times of humidification by hanger plate 13 department export entering cooling room 18, wet cold gas after the humidification carries out the secondary mixing with the powder gas mixture after mixing the cooling in the cooling room, further cool down the material, carry out ageing reaction simultaneously.
Liquid water enters the evaporation chamber 9 from the spraying system 7, the passing ascending air flow is humidified, and other liquid water forms a water film along the inner wall of the evaporation chamber 9 and flows into the bottom water collecting tank 4, the water level in the water collecting tank 4 is displayed by the liquid level meter 2, the maximum water adding amount of the spraying system 7 is adjusted according to the liquid level of the liquid level meter 2, and the maximum water adding amount is based on the fact that the water level in the water collecting tank does not rise. In the actual production process, the water adding amount of the spraying system 7 does not exceed the maximum water adding amount. If the water level of the water collecting tank rises quickly, redundant liquid water is discharged through a drain valve of the liquid level meter 2, and meanwhile, the water quantity of the spraying system 7 is reduced, so that the liquid water is prevented from overflowing.
The material gas mixed fluid continuously rises and is mixed with the wet cold air from the outlet of the evaporation chamber 9 again below the flow guide piece 14, and the temperature is reduced for three times. The multi-form cooling is carried out for a plurality of times, so that the consumption of cooling air can be reduced, the energy consumption of pneumatic equipment and the specification of subsequent tail gas treatment equipment are further reduced, and the effects of reducing the energy consumption and saving the equipment cost are achieved.
Meanwhile, the air and the water vapor in the wet and cold air are subjected to aging reaction, and after the air is humidified by the spraying system 7, the moisture content of the air is far greater than that of the negative pressure air, so that the aging reaction can be carried out more efficiently. The wet cold air is mixed with the materials forcibly under the action of the guide vanes 17 for reaction, and the mixed material gas mixed fluid is discharged from the air outlet 16 through the aging chamber 15.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (10)
1. The utility model provides a gypsum evaporative cooling aging tower, includes the barrel, and the feed inlet, its characterized in that have been seted up to the lateral part of barrel: an evaporation chamber is arranged in the center of the cylinder, a temperature reduction chamber is formed between the inner wall of the cylinder and the outer wall of the evaporation chamber, and the evaporation chamber is communicated with an aging chamber;
the cooling chamber is provided with a negative pressure air inlet and a feed inlet, pulse airflow is input into the negative pressure air inlet, the feed inlet is positioned at a high-speed airflow zone of the cooling chamber, and the pulse airflow is in an ascending running state so as to enable the gypsum materials to ascend and float to the aging chamber;
a multi-stage spraying system and a plurality of layers of fillers with heat exchange function are arranged in the evaporation chamber, and the spraying system and the fillers are alternately arranged at intervals;
the evaporation chamber is provided with an air inlet and an air outlet, and the aging chamber is positioned at the air outlet of the evaporation chamber;
the aging chamber is provided with a flow guide piece.
2. The gypsum evaporative cooling aging tower of claim 1, wherein: and guide vanes are arranged on the side wall of the guide part.
3. The gypsum evaporative cooling aging tower of claim 2, wherein: the flow guide piece is positioned above the air outlet of the evaporation chamber, the upper end and the lower end of the flow guide piece are conical, and the middle of the flow guide piece is cylindrical; the cylindrical side wall of the flow guide part is provided with a plurality of inclined flow guide blades.
4. The gypsum evaporative cooling aging tower of claim 3, wherein: one end of the guide vane is welded with the cylindrical barrel of the guide part, and the other end of the guide vane is welded on the inner wall of the barrel.
5. The gypsum evaporative cooling aging tower of claim 3, wherein: the guide vanes are inclined at 45-60 degrees.
6. The gypsum evaporative cooling aging tower of claim 1, wherein: the air inlet is provided with a water collecting tank, and the water collecting tank is filled with filler with water absorption effect.
7. The gypsum evaporative cooling aging tower of claim 1, wherein: the gas in the cooling chamber adopts pulse flow.
8. The gypsum evaporative cooling aging tower of claim 1, wherein: and a support frame for mounting a spraying system and a filler is arranged in the evaporation chamber.
9. The gypsum evaporative cooling aging tower of claim 8, wherein: the spraying system and the number of the layers of the filler can be freely combined.
10. The gypsum evaporative cooling aging tower of claim 6, wherein: the water collecting tank is provided with a liquid level meter which can indicate the liquid level and can discharge redundant water in the water collecting tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020588305.XU CN212127990U (en) | 2020-04-17 | 2020-04-17 | Gypsum evaporation cooling aging tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020588305.XU CN212127990U (en) | 2020-04-17 | 2020-04-17 | Gypsum evaporation cooling aging tower |
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| CN212127990U true CN212127990U (en) | 2020-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111377624A (en) * | 2020-04-17 | 2020-07-07 | 青岛量子元基环保科技有限公司 | Gypsum evaporation cooling aging tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111377624A (en) * | 2020-04-17 | 2020-07-07 | 青岛量子元基环保科技有限公司 | Gypsum evaporation cooling aging tower |
| CN111377624B (en) * | 2020-04-17 | 2023-12-22 | 青岛量子元基环保科技有限公司 | Gypsum evaporation cooling aging tower |
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