CN213790055U - Indirect heating concentration crystallizer heat recovery device - Google Patents
Indirect heating concentration crystallizer heat recovery device Download PDFInfo
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- CN213790055U CN213790055U CN202022690999.0U CN202022690999U CN213790055U CN 213790055 U CN213790055 U CN 213790055U CN 202022690999 U CN202022690999 U CN 202022690999U CN 213790055 U CN213790055 U CN 213790055U
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Abstract
The utility model discloses a concentrated crystallizer heat recovery unit of indirect heating, including the pre-heater, the pre-heater is connected with the pure water and sprays the absorption tower, the pure water sprays the absorption tower and is connected with washing slag water and sprays the absorption tower, washing slag water sprays the absorption tower and is connected with the fan, and the high temperature that the concentrated crystallizer of indirect heating produced is absorbed to the pre-heater two-effect steam, carries out the material and preheats, and then, two-effect steam gets into pure water and sprays the absorption tower heating pure water, sprays the absorption tower heating washing slag water through washing slag water again, discharges from fan air exit low temperature, and the concentrated crystallizer heat recovery unit of indirect heating has imitated and has utilized two-effect steam, has reduced energy resource consumption and environmental pollution, also provides for follow-up raw materials of participating in chemical reaction and preheats, has improved reaction efficiency.
Description
Technical Field
The utility model belongs to the technical field of chemical production, concretely relates to concentrated crystallizer heat recovery unit of indirect heating.
Background
The indirect coil heating can heat, concentrate and crystallize the materials by steam, heat-conducting oil and the like through the heating coil because the source of the heat medium is wide, so the indirect heating concentration crystallizer is still a common evaporation concentration crystallization device. The method is commonly used in production process equipment such as manganese sulfate, zinc sulfate and the like at present. However, as shown in fig. 1, in the conventional indirect heating concentration crystallization production process for manganese sulfate production, the conventional coil heating concentration crystallizer is a single-effect intermittent concentration crystallization device, the secondary steam generated during evaporation concentration is directly discharged from the indirect heating concentration crystallizer 5, the secondary steam is not effectively utilized, the energy consumption is high, and acid mist is carried in the discharged steam, so that the environment is affected.
SUMMERY OF THE UTILITY MODEL
To the problem that the above-mentioned background art provided, the utility model aims at: aims to provide a heat energy recovery device of an indirect heating concentration crystallizer.
In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
an indirect heating concentration crystallizer heat energy recovery device comprises a preheater, wherein the preheater is connected with a pure water spraying absorption tower, the pure water spraying absorption tower is connected with a slag washing water spraying absorption tower, and the slag washing water spraying absorption tower is connected with a fan; a feeding pipeline is arranged on one side of the preheater, a discharging pipeline is arranged on the other side of the preheater, an air inlet pipeline is arranged on the lower side of the feeding pipeline, the feeding pipeline is connected with a feeding storage chamber, an exhaust pipeline is arranged on the upper side of the discharging pipeline, the discharging pipeline is connected with a discharging storage chamber, and a feeding heating structure is arranged in an inner cavity of the preheater; the lower end of the pure water spraying absorption tower is provided with a pure water spraying air inlet matched with the exhaust pipeline, the upper end of the pure water spraying absorption tower is provided with a pure water spraying exhaust port, and the inner cavity of the pure water spraying absorption tower is provided with a pure water first spraying heat absorption chamber, a pure water second spraying heat absorption chamber and a pure water inlet water collection chamber from top to bottom; pure water spray headers are arranged in the first pure water spray heat absorption chamber and the second pure water spray heat absorption chamber, the pure water spray headers are fixedly connected with pure water inlet pipes, and the lower end of the pure water spray absorption tower is provided with a pure water outlet; the lower end of the slag washing water spraying absorption tower is provided with a slag washing water spraying air inlet matched with the pure water spraying air outlet, the upper end of the slag washing water spraying absorption tower is provided with a slag washing water spraying air outlet, and the inner cavity of the slag washing water spraying absorption tower is provided with a slag washing water first spraying heat absorption chamber, a slag washing water second spraying heat absorption chamber and a slag washing water air inlet water collection chamber from top to bottom; the slag washing water spray absorption tower is characterized in that slag washing water spray heads are arranged in the first slag washing water spray absorption chamber and the second slag washing water spray absorption chamber, the slag washing water spray heads are fixedly connected with a slag washing water inlet pipe, and a slag washing water outlet is formed in the lower end of the slag washing water spray absorption tower.
Further limited, a half-moon-shaped baffle plate is arranged on the feeding heating structure, and a material liquid pipe is nested and installed on the half-moon-shaped baffle plate.
Further inject, the inner chamber of preheater has the circumference setting element, it has the recess with circumference setting element complex to open on the semilunar baffling board, such structural design makes feed heating structure possess the circumference location, the location installation of the semilunar baffling board of also being convenient for.
Further inject, inlet line, exhaust duct, feed pipeline, discharge pipeline, pure water spray the gas vent and wash the sediment water and spray and be equipped with temperature sensor on the gas vent, such structural design, the heat that self remains after each grade heat transfer of knowing two-effect steam that can understand reachs heat transfer efficiency to whether the inspection heating procedure is qualified, also can analyze out the fault point when indirect heating concentrated crystallizer heat recovery unit breaks down.
Further inject, pure water sprays the absorption tower and washes the sediment water and sprays all to be equipped with the heat transfer device that catchments in the absorption tower cavity, the last recess that catchments that opens of heat transfer device that catchments increases the heat transfer time of pure water and washing sediment water in spraying the heat absorption room such structural design.
Further limiting, the inner cavities of the pure water spraying absorption tower and the slag washing water spraying absorption tower are provided with guide strips, and due to the structural design, the secondary effect steam is liquefied on the inner wall of the spraying absorption tower and rapidly flows to the water collecting and heat exchanging device along the guide strips.
The utility model has the advantages that:
1. the secondary steam of the indirect heating concentration crystallizer is fully utilized for heating, so that the slightly acidic steam condensate water is completely reused for production, and good economic and environmental benefits are achieved;
2. the material is preheated by the double-effect steam and then continuously and uniformly enters the coil pipe concentration crystallizer, so that the crystal particles are improved, the separation effect is improved during solid-liquid separation, and the power consumption of separation equipment is reduced;
3. the temperature of the pure water rises after being preheated, the dissolution speed of the crystal is accelerated when the crystal is dissolved, the solution is not required to be heated for temperature increase when the impurity is removed, and the impurity removal efficiency is improved.
Drawings
The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a flow chart of a traditional production process of indirect heating, concentration and crystallization in the prior art;
FIG. 2 is a schematic structural view of the heat energy recovery device of the indirect heating concentration crystallizer of the present invention
FIG. 3 is a schematic diagram of the heat energy recovery device of the indirect heating concentration crystallizer of the present invention;
FIG. 4 is a schematic structural diagram of a preheater housing in the heat energy recovery device of the indirect heating concentration crystallizer of the present invention;
FIG. 5 is a schematic structural view of a feeding and heating structure of a heat energy recovery device of an indirect heating concentration crystallizer of the present invention;
FIG. 6 is a schematic view of the internal structure of a pure water spray absorption tower in the indirect heating concentration crystallizer heat energy recovery device of the present invention;
the main element symbols are as follows:
the device comprises a preheater 1, a pure water spraying absorption tower 2, a slag washing water spraying absorption tower 3, a fan 4, an indirect heating concentration crystallizer 5, a feeding pipeline 11, a discharging pipeline 12, an air inlet pipeline 13, a feeding storage chamber 10, the discharging pipeline 12, an air exhaust pipeline 14, a discharging storage chamber 19, a feeding heating structure 301, a half-moon-shaped baffle plate 304, a material liquid pipe 303, a pure water spraying air inlet 21, a pure water spraying air outlet 22, a pure water first spraying heat absorption chamber 24, a pure water second spraying heat absorption chamber 25, a pure water air inlet collecting chamber 29, a pure water spraying head 204, a pure water inlet pipe 23, a pure water outlet 28, a slag washing water spraying air inlet 31, a slag washing water spraying air outlet 32, a slag washing water first spraying heat absorption chamber 34, a slag washing water second spraying heat absorption chamber 35, a slag washing water inlet water collecting chamber 36, a slag washing water spraying head 205, a slag washing water inlet pipe 33, a slag washing water outlet 39, a slag washing water outlet, The device comprises a circumferential positioning member 18, a groove 314, a temperature sensor 15, a water collecting and heat exchanging device 202, a water collecting groove 203 and a flow guide strip 201.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.
As shown in fig. 2-6, the heat energy recovery device for indirect heating concentration crystallizer of the present invention comprises a preheater 1, wherein the preheater 1 is connected with a pure water spray absorption tower 2, the pure water spray absorption tower 2 is connected with a slag washing water spray absorption tower 3, and the slag washing water spray absorption tower 3 is connected with a fan 4; a feeding pipeline 11 is arranged on one side of the preheater, a discharging pipeline 12 is arranged on the other side of the preheater, an air inlet pipeline 13 is arranged on the lower side of the feeding pipeline 11, the feeding pipeline 11 is connected with a feeding storage chamber 10, an exhaust pipeline 14 is arranged on the upper side of the discharging pipeline 12, the discharging pipeline 12 is connected with a discharging storage chamber 19, and a feeding heating structure 301 is arranged in an inner cavity of the preheater; the lower end of the pure water spraying absorption tower 2 is provided with a pure water spraying air inlet 21 matched with the exhaust pipeline 14, the upper end of the pure water spraying absorption tower 2 is provided with a pure water spraying exhaust port 22, and the inner cavity of the pure water spraying absorption tower 2 is provided with a pure water first spraying heat absorption chamber 24, a pure water second spraying heat absorption chamber 25 and a pure water inlet water collecting chamber 29 from top to bottom; pure water spray headers 204 are arranged in the pure water first spray heat absorption chamber 24 and the pure water second spray heat absorption chamber 25, the pure water spray headers 204 are fixedly connected with pure water inlet pipes 23, and the lower end of the pure water spray absorption tower 2 is provided with a pure water outlet 28; the lower end of the slag washing water spray absorption tower 3 is provided with a slag washing water spray air inlet 31 matched with the pure water spray air outlet 22, the upper end of the slag washing water spray air outlet 32, and the inner cavity of the slag washing water spray absorption tower 3 is provided with a slag washing water first spray heat absorption chamber 34, a slag washing water second spray heat absorption chamber 35 and a slag washing water air inlet water collection chamber 36 from top to bottom; slag washing water spray headers 205 are arranged in the first slag washing water spray heat absorption chamber 34 and the second slag washing water spray heat absorption chamber 35, the slag washing water spray headers 205 are fixedly connected with a slag washing water inlet pipe 33, and the lower end of the slag washing water spray absorption tower 3 is provided with a slag washing water outlet 39.
In the implementation of the scheme, the characteristics of a manganese sulfate production process are combined, an indirect heating concentration crystallizer heat energy recovery device is added, secondary-effect steam enters an air inlet pipeline 13 on a preheater from an indirect heating concentration crystallizer 5 and preheats a material liquid pipe 303, due to the existence of a half-moon-shaped baffle plate 304, the secondary-effect steam flows along a space separated by the half-moon-shaped baffle plate 304 and flows through a longer stroke, the material liquid enters a feeding storage chamber 10 from a feeding pipeline 11 and then flows through the material liquid pipe 303, is heated by the secondary-effect steam and flows to a discharging storage chamber 19, and continuously and uniformly flows back to the indirect heating concentration crystallizer 5 through a discharging pipeline 12, so that crystalline particles are improved, the particle size is uniform, the separation effect is improved during solid-liquid separation, and the power consumption of separation equipment is reduced; after flowing out from the exhaust pipeline 14, the secondary steam enters the pure water spraying air inlet 21, enters the pure water inlet water collecting chamber 29 to heat the pure water from bottom to top and is exhausted from the pure water spraying exhaust port 22, the pure water enters from the pure water inlet pipe 23, the pure water spray header 204 heats the pure water in the pure water first spraying heat absorption chamber 24 and the pure water second spraying heat absorption chamber 25 and finally flows back to the pure water tank from the pure water outlet 28, the secondary steam is cooled, condensed water formed after spraying and absorption can be completely recycled, the consumption of the pure water is reduced, the dissolving speed of the pure water crystal with higher temperature is accelerated, the solution is not required to be heated and heated for impurity removal, the impurity removal efficiency is improved, meanwhile, the micro acid mist carried in the secondary steam also enters the water, and the pH of the solution can be adjusted to a proper process control index by the micro acid water during the crystal dissolution; the secondary steam is discharged from the pure water spraying exhaust port 22 and then flows into the slag washing water spraying air inlet 31, then enters the slag washing water inlet water collecting chamber 36 to heat the slag washing water from bottom to top, and is discharged from the slag washing water spraying exhaust port 32, the slag washing water enters the slag washing water spraying head 205 from the slag washing water inlet pipe 33, is heated in the first slag washing water spraying heat absorption chamber 24 and the second slag washing water spraying heat absorption chamber 25, and finally flows back to the slag washing water tank from the slag washing water discharge port 28, the acidity of the manganese slag washing water is reduced, the leaching of manganese in the manganese slag is improved, the manganese emission of the manganese slag is reduced, the temperature of the slag washing water is improved, the slurrying, washing, filtering and separating effects of the manganese slag are also improved, and the content of manganese in the manganese slag is reduced; the secondary steam enters the fan after being discharged from the slag washing water spraying exhaust port 32 and is exhausted, after being treated by the heat energy recovery device, the secondary steam with the temperature of 100 ℃ and 103 ℃ originally discharged in the indirect heating concentration crystallizer is changed into non-condensable gas with the temperature of 30-40 ℃ discharged, the heat is fully utilized, and the slightly acidic steam condensate water is completely recycled for production, so that the method has good economic and environmental benefits.
The preferred feeding heating structure is provided with the half-moon-shaped baffle plate 304, the feed pipe 303 is nested and installed on the half-moon-shaped baffle plate 304, and due to the structural design, the secondary-effect steam can only flow along the space limited by the half-moon-shaped baffle plate, so that the flow stroke of the secondary-effect steam is increased, and the preheating time is prolonged. In fact, other configurations of meniscus baffle 304 and feed liquid tube 303 are contemplated as appropriate.
Preferably, the inner cavity of the preheater is provided with a circumferential positioning member 18, and the half-moon-shaped baffle plate 304 is provided with a groove 314 matched with the circumferential positioning member 18, so that the feeding heating structure 301 has circumferential positioning and is convenient for positioning and installing the half-moon-shaped baffle plate 304. In fact, other configurations of the circumferential positioning element 18 and the recess 314 are also contemplated, as the case may be.
Preferably, the air inlet pipeline 13, the exhaust pipeline 14, the feeding pipeline 11, the discharging pipeline 12, the pure water spraying exhaust port 22 and the slag washing water spraying exhaust port 32 are provided with the temperature sensors 15, and by the structural design, the heat quantity of the secondary steam which is reserved after each stage of heat transfer can be clearly known, so that the heat transfer efficiency is obtained, the qualification of each heating procedure is conveniently checked, and the fault point of the indirect heating concentration crystallizer heat energy recovery device when the fault occurs can be analyzed. In fact, other configurations of the temperature sensor 15 may be considered as appropriate.
Preferably, the pure water spraying absorption tower 2 and the slag washing water spraying absorption tower 3 are internally provided with a water collecting and heat exchanging device 202, and the water collecting and heat exchanging device 202 is provided with a water collecting groove 203. In fact, other configurations of the water collection groove 203 may be considered as the case may be.
Preferably, the inner cavities of the pure water spray absorption tower 2 and the slag washing water spray absorption tower 3 are provided with guide strips 201, and the structural design ensures that the two-effect steam is liquefied on the inner wall of the spray absorption tower and rapidly flows to the water collection and heat exchange device 202 along the guide strips 201. In fact, other configurations of the air guide strips 201 can be considered as the case may be.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. The utility model provides an indirect heating concentrated crystallizer heat recovery unit which characterized in that: the device comprises a preheater (1), wherein the preheater (1) is connected with a pure water spray absorption tower (2), the pure water spray absorption tower (2) is connected with a slag washing water spray absorption tower (3), and the slag washing water spray absorption tower (3) is connected with a fan (4);
a feeding pipeline (11) is arranged on one side of the preheater (1), a discharging pipeline (12) is arranged on the other side of the preheater, an air inlet pipeline (13) is arranged on the lower side of the feeding pipeline (11), the feeding pipeline (11) is connected with a feeding storage chamber (10), an exhaust pipeline (14) is arranged on the upper side of the discharging pipeline (12), the discharging pipeline (12) is connected with a discharging storage chamber (19), and a feeding heating structure (301) is installed in an inner cavity of the preheater (1);
the lower end of the pure water spraying absorption tower (2) is provided with a pure water spraying air inlet (21) matched with an exhaust pipeline (14), the upper end of the pure water spraying absorption tower is provided with a pure water spraying exhaust port (22), the inner cavity of the pure water spraying absorption tower (2) is provided with a pure water first spraying heat absorption chamber (24), a pure water second spraying heat absorption chamber (25) and a pure water inlet water collection chamber (29) from top to bottom, pure water spraying heads (204) are arranged in the pure water first spraying heat absorption chamber (24) and the pure water second spraying heat absorption chamber (25), the pure water spraying heads (204) are fixedly connected with a pure water inlet pipe (23), and the lower end of the pure water spraying absorption tower (2) is provided with a pure water outlet (28);
wash slag water sprays absorption tower (3) lower extreme is equipped with and sprays gas vent (22) complex wash slag water and spray air inlet (31) with the pure water, and the upper end is equipped with wash slag water and sprays gas vent (32), wash slag water sprays absorption tower (3) inner chamber from last to being equipped with the first heat absorption room (34) that sprays of wash slag water, wash slag water second sprays heat absorption room (35) and wash slag water and admit air water collection room (36) down, wash slag water first sprays heat absorption room (34) and wash slag water second and sprays and be equipped with wash slag water shower head (205) in heat absorption room (35), wash slag water shower head (205) fixedly connected with wash slag water inlet tube (33), the lower extreme of wash slag water spraying absorption tower (3) is equipped with wash slag water outlet (39).
2. The indirect heating concentration crystallizer heat energy recovery device of claim 1, wherein: the feeding heating structure (301) is provided with a half-moon-shaped baffle plate (304), and a material liquid pipe (303) is nested on the half-moon-shaped baffle plate (304).
3. The indirect heating concentration crystallizer heat energy recovery device of claim 2, wherein: the inner cavity of the preheater (1) is provided with a circumferential positioning piece (18), and the half-moon-shaped baffle plate (304) is provided with a groove (314) matched with the circumferential positioning piece (18).
4. The indirect heating concentration crystallizer heat energy recovery device of claim 3, wherein: and temperature sensors (15) are arranged on the air inlet pipeline (13), the exhaust pipeline (14), the feeding pipeline (11), the discharging pipeline (12), the pure water spraying exhaust port (22) and the slag washing water spraying exhaust port (32).
5. The indirect heating concentration crystallizer heat energy recovery device of claim 4, wherein: and water collecting and heat exchanging devices (202) are arranged in cavities of the pure water spraying absorption tower (2) and the slag washing water spraying absorption tower (3), and water collecting grooves (203) are formed in the water collecting and heat exchanging devices (202).
6. The indirect heating concentration crystallizer heat energy recovery device of claim 5, wherein: and the inner cavities of the pure water spray absorption tower (2) and the slag washing water spray absorption tower (3) are provided with guide strips (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022690999.0U CN213790055U (en) | 2020-11-19 | 2020-11-19 | Indirect heating concentration crystallizer heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022690999.0U CN213790055U (en) | 2020-11-19 | 2020-11-19 | Indirect heating concentration crystallizer heat recovery device |
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| Publication Number | Publication Date |
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| CN213790055U true CN213790055U (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022690999.0U Active CN213790055U (en) | 2020-11-19 | 2020-11-19 | Indirect heating concentration crystallizer heat recovery device |
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| CN (1) | CN213790055U (en) |
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- 2020-11-19 CN CN202022690999.0U patent/CN213790055U/en active Active
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