CN211198623U - Energy-conserving heating device of nanometer calcium carbonate boiled thick liquid surface treatment - Google Patents
Energy-conserving heating device of nanometer calcium carbonate boiled thick liquid surface treatment Download PDFInfo
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- CN211198623U CN211198623U CN201921470573.5U CN201921470573U CN211198623U CN 211198623 U CN211198623 U CN 211198623U CN 201921470573 U CN201921470573 U CN 201921470573U CN 211198623 U CN211198623 U CN 211198623U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses an energy-conserving heating device of nanometer calcium carbonate ripe thick liquid surface treatment relates to thick liquids heating device technical field, including the carbonization jar, the homogenization jar, plate heat exchanger, activation cauldron and buffer tank, homogenization jar play stuff pump is connected with plate heat exchanger's ripe thick liquid charge-in pipeline, plate heat exchanger's ripe thick liquid discharge pipeline is connected with the activation charge-in pipeline of activation cauldron, the inside steam noise elimination heater that is equipped with of activation cauldron, steam noise elimination heater is including the heater cavity that evenly is equipped with a plurality of steam orifice, activation cauldron play stuff pump is connected with plate heat exchanger's activation thick liquid charge-in pipeline, plate heat exchanger's activation thick liquid discharge pipeline and the buffering charge-in pipeline of buffer tank are connected. The utility model discloses make ripe thick liquid earlier through plate heat exchanger heat transfer with the good thick liquids of activation, rethread steam noise elimination heater further heats and improves activation temperature, reduction in production cost realizes energy saving and emission reduction and energy cyclic utilization's purpose.
Description
Technical Field
The utility model relates to a thick liquids heating device technical field, in particular to ripe thick liquid surface treatment energy-saving heating device of nanometer calcium carbonate.
Background
The production of nano calcium carbonate is characterized by that it adopts lime stone to calcine to obtain lime, then uses the lime to digest it with water, and makes it pass through the refining and sieving process to obtain lime raw pulp (Ca (OH)2) Adjusting lime raw slurry (Ca (OH)2) Adding a crystal form control agent, and carbonizing by kiln gas to obtain nano calcium carbonate aged pulp (CaCO)3) The temperature of the obtained nano calcium carbonate ripened pulp is usually between 25 and 50 ℃. Because the coating effect of the surface treating agent is good under the high temperature condition, the nano calcium carbonate cooked slurry is usually required to be heated to 75-95 ℃, then dissolved saponified stearate and other surface treating agents are added and stirred for 1-2 hours, the surface treatment coating process is completed, and then activated nano calcium carbonate slurry is obtained, and then the activated nano calcium carbonate slurry is subjected to filter pressing, drying and crushing to obtain a nano calcium carbonate finished product.
The carbonized nano calcium carbonate slurry is heated from 25-50 ℃ to 75-95 ℃, the water vapor and the heat conducting oil are indirectly heated through a coil pipe or a jacket by a commonly adopted method, the average heat quantity of 60-150 kilograms of standard coal is required, the energy consumption is large, and the cost waste is serious.
SUMMERY OF THE UTILITY MODEL
According to the technical defect who exists among the prior art, the utility model aims to solve the technical problem that: the energy-saving heating device for the surface treatment of the nano calcium carbonate boiled pulp enables the boiled pulp and the activated pulp to exchange heat through the plate heat exchanger firstly and then be further heated through the steam noise elimination heater to improve the activation temperature, solves the problems of large energy consumption, serious cost waste and the like of the existing heating device, reduces the production cost, stabilizes the product quality, and achieves the purposes of energy conservation, emission reduction and energy recycling.
In order to realize the technical purpose of the utility model, the utility model relates to a ripe thick liquid surface treatment energy-saving heating device of nanometer calcium carbonate's technical scheme is:
the utility model provides an energy-conserving heating device of nanometer calcium carbonate boiled thick liquid surface treatment, includes carbonization processing unit, homogenization processing unit, heat transfer unit, surface treatment unit and aftertreatment unit, carbonization processing unit includes the carbonization jar, homogenization processing unit includes the homogenization jar, the heat transfer unit includes plate heat exchanger, surface treatment unit includes the activation cauldron, aftertreatment unit includes the buffer tank, the discharge conduit of carbonization jar with the homogenization charge-in pipeline of homogenization jar is connected, be equipped with homogenization jar stuff pump on the homogenization discharge conduit of homogenization jar, homogenization jar stuff pump with plate heat exchanger's boiled thick liquid charge-in pipeline is connected, plate heat exchanger's boiled thick liquid discharge conduit with the activation charge-in pipeline of activation cauldron is connected, activation cauldron top is equipped with the saponification jar, the saponification jar with the activation cauldron passes through the pipe connection, the steam noise elimination device comprises an activation kettle, and is characterized in that a steam noise elimination heater is arranged in the activation kettle, the steam noise elimination heater comprises a heater cavity, a plurality of steam spray holes are uniformly formed in the heater cavity, the steam noise elimination heater is connected with a horn-shaped enlarged pipe through a connecting flange, the horn-shaped enlarged pipe is connected with a steam pipeline, a check valve is arranged on the steam pipeline, an activation kettle slurry outlet pump is arranged on an activation discharge pipeline of the activation kettle, the activation kettle slurry outlet pump is connected with an activation slurry feeding pipeline of a plate heat exchanger, the activation slurry discharging pipeline of the plate heat exchanger is connected with a buffering feeding pipeline of a buffer tank, a buffer tank slurry outlet pump is arranged on a buffering discharge pipeline of the buffer tank, and the buffer tank slurry outlet pump is connected with a filter press feeding; the carbonization tank, the homogenization tank, the activation kettle and the buffer tank are all internally provided with stirring devices.
As a further improvement of the utility model, the boiled thick liquid charge-in pipeline with all be equipped with the steam flushing pipe way on the activation thick liquid charge-in pipeline, be equipped with the steam flushing valve on the steam flushing pipe way.
As a further improvement of the utility model, the carbonization tank is at least provided with 2.
As a further improvement of the utility model, the number of the activation kettles is at least 2.
As a further improvement of the utility model, the homogenization jar goes out the stuff pump activation cauldron go out the stuff pump with the buffer tank goes out the stuff pump and is vertical or horizontal slush pump, sediment stuff pump, plunger defeated stuff pump.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model relates to a ripe thick liquid surface treatment energy-saving heating device of nanometer calcium carbonate makes ripe thick liquid and the thick liquids that activate earlier through plate heat exchanger heat transfer, and rethread steam noise elimination heater further heats and improves activation temperature, and it is great to have solved current heating device energy consumption, and the extravagant serious scheduling problem of cost reduces manufacturing cost, stabilizes product quality, realizes energy saving and emission reduction and energy cyclic utilization's purpose.
Because install the check valve on the steam conduit of activation cauldron, can effectively prevent that nanometer calcium carbonate thick liquid from flowing backwards into steam conduit, and set up increase horn mouth at the end of steam pipe, through flange and steam noise elimination heater connection, steam noise elimination heater is located the bottom of activation cauldron, and an activation cauldron inside can be equipped with one or more, guarantees that the inside heating of activation cauldron is even. The steam jet holes are distributed on the annular wall of the cavity of the heater, the openings of the steam jet holes are jetted along the tangential direction, when the steam is jetted outwards from the inclined small holes at a high speed, the steam in the heater is jetted in a rotating way along the tangential direction, so that on one hand, the impact angle of the steam on the heated slurry can be reduced, and the noise generated by the impact vibration of the steam on the liquid is effectively reduced; on the other hand, the steam is sprayed out in a rotating mode along the tangential direction, heated liquid can be driven to rotate in the same direction, cold and hot convection becomes more frequent, noise generated by steam bubbles is pressed to the minimum degree in the process, the liquid in the whole container can be heated quickly in the rotating motion, and the steam-heated rotary heating device has the advantages of being good in noise elimination effect, small in vibration, simple in structure, high in heat utilization rate and the like.
After the whole process is stopped, the steam flushing valve can be used for opening the steam flushing pipeline on the boiled pulp feeding pipeline and the activated pulp feeding pipeline, so that the plate heat exchanger and the pipeline are flushed, the pipeline and the plate heat exchanger are prevented from scaling, and the follow-up normal use is ensured.
Adopt the technical scheme of the utility model, carry out the heat exchange through the calcium carbonate thick liquids around to the cladding, reduce the temperature of thick liquids behind the cladding on the one hand, the cladding thick liquids are treated in on the other hand heating, adopt steam noise elimination heater heating simultaneously, can the noise elimination, improve steam utilization ratio, device simple structure, energy consumption are low, but greatly reduced manufacturing cost, equipment are difficult to the scale deposit, can stabilize product quality, realize energy saving and emission reduction and energy cyclic utilization. In addition, the temperature of the coated nano calcium carbonate cooked slurry is 75-95 ℃, if the nano calcium carbonate cooked slurry is directly subjected to filter pressing by a membrane filter press, the temperature is higher, the plate frame is easy to deform, the service life of the plate frame filter press is influenced, and the temperature of the treated slurry can be reduced and the slurry to be treated can be heated by utilizing a plate heat exchanger through heat exchange of the calcium carbonate slurry before and after surface treatment. The temperature of the slurry after heat exchange and surface treatment is usually 40-60 ℃, and then the slurry enters a membrane filter press for filter pressing, so that the damage to a plate frame of the membrane filter press is small, and the service life of the plate frame can be prolonged.
To sum up, the utility model relates to an energy-conserving heating device of ripe thick liquid surface treatment of nanometer calcium carbonate, structural design is reasonable, and the flow is simple relatively, is favorable to going on of the ripe thick liquid surface treatment process of nanometer calcium carbonate, has reduced manufacturing cost, is applicable to industrial application.
Drawings
FIG. 1 is a schematic structural view of the energy-saving heating device for surface treatment of nano calcium carbonate cooked slurry of the present invention;
FIG. 2 is a schematic structural diagram of the steam noise elimination heater in FIG. 1;
the direction of the arrows in the figure indicates the direction of slurry flow;
in the figure: 1-carbonization tank, 2-homogenization tank, 3-homogenization discharge pipeline, 4-homogenization tank pulp outlet pump, 5-boiled pulp feed pipeline, 6-plate heat exchanger, 7-boiled pulp discharge pipeline, 8-activation feed pipeline, 9-activation kettle, 10-buffer feed pipeline, 11-activation discharge pipeline, 12-activation kettle pulp outlet pump, 13-activation pulp feed pipeline, 14-activation pulp discharge pipeline, 15-buffer tank, 16-buffer discharge pipeline, 17-buffer tank pulp outlet pump, 18-filter press, 19-steam pipeline, 20-horn-shaped enlargement pipe, 21-connecting flange, 22-steam silencing heater, 23-heater cavity, 24-steam spray hole, 25-saponification tank, 26-steam flushing pipeline, 27-steam flush valve, 28-check valve.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings.
Referring to fig. 1 and 2, the utility model relates to a nano calcium carbonate boiled pulp surface treatment energy-saving heating device, which comprises a carbonization treatment unit, a homogenization treatment unit, a heat exchange unit, a surface treatment unit and a post-treatment unit, wherein the carbonization treatment unit comprises a carbonization tank 1, the homogenization treatment unit comprises a homogenization tank 2, the heat exchange unit comprises a plate heat exchanger 6, the surface treatment unit comprises an activation kettle 9, the post-treatment unit comprises a buffer tank 15, a discharge pipeline of the carbonization tank 1 is connected with a homogenization feed pipeline of the homogenization tank 2, a homogenization tank pulp outlet pump 4 is arranged on a homogenization discharge pipeline 3 of the homogenization tank 2, the homogenization tank pulp outlet pump 4 is connected with a boiled pulp feed pipeline 5 of the plate heat exchanger 6, a boiled pulp discharge pipeline 7 of the plate heat exchanger 6 is connected with an activation feed pipeline 8 of the activation kettle 9, a saponification tank 25 is arranged above the activation kettle 9, the saponification tank 25 is connected with the activation kettle 9 through a pipeline, a steam noise elimination heater 22 is arranged in the activation kettle 9, the steam noise elimination heater 22 comprises a heater cavity 23, a plurality of steam spray holes 24 are uniformly arranged on the heater cavity 23, the steam noise elimination heater 22 is connected with a horn-shaped enlarged pipe 20 through a connecting flange 21, the horn-shaped enlarged pipe 20 is connected with a steam pipeline 19, a check valve 28 is arranged on the steam pipeline 19, an activation kettle slurry outlet pump 12 is arranged on an activation discharge pipeline 11 of the activation kettle 9, the activation kettle slurry outlet pump 12 is connected with an activation slurry feeding pipeline 13 of the plate heat exchanger 6, an activation slurry discharge pipeline 14 of the plate heat exchanger 6 is connected with a buffer feeding pipeline 10 of a buffer tank 15, a buffer tank slurry outlet pump 17 is arranged on a buffer discharge pipeline 16 of the buffer tank 15, and the buffer tank slurry outlet pump 17 is connected with a feeding pipeline of a filter press 18; the carbonization tank 1, the homogenization tank 2, the activation kettle 9 and the buffer tank 15 are all internally provided with stirring devices.
Install check valve 28 on activation cauldron 9's the steam conduit 19, can prevent effectively that nanometer calcium carbonate thick liquid from flowing backwards into steam conduit 19, and set up tubaeform increase pipe 20 at the end of steam pipe, be connected with steam noise elimination heater 22 through flange 21, steam noise elimination heater 22 is located activation cauldron 9's bottom, and one or more can be equipped with inside the one activation cauldron 9, guarantees that the inside heating of activation cauldron 9 is even. The circumferential wall of the heater cavity 23 is distributed with a plurality of steam jet holes 24, the openings of the steam jet holes 24 are jetted along the tangential direction, when the steam is jetted outwards from the inclined small holes at high speed, the steam in the heater is jetted in a rotating way along the tangential direction, so that on one hand, the impact angle of the steam to the heated slurry can be reduced, and the noise generated by the impact vibration of the steam to the liquid is effectively reduced; on the other hand, the steam is sprayed out in a rotating mode along the tangential direction, heated liquid can be driven to rotate in the same direction, cold and hot convection becomes more frequent, noise generated by steam bubbles is pressed to the minimum degree in the process, the liquid in the whole container can be heated quickly in the rotating motion, and the steam-heated rotary heating device has the advantages of being good in noise elimination effect, small in vibration, simple in structure, high in heat utilization rate and the like.
The boiled pulp feeding pipeline 5 and the activated pulp feeding pipeline 13 are both provided with a steam flushing pipeline 26, and the steam flushing pipeline 26 is provided with a steam flushing valve 27. After the whole process is stopped, the steam flushing valve 27 can be used for opening the steam flushing pipeline 26 on the boiled pulp feeding pipeline 5 and the activated pulp feeding pipeline 13 to flush the plate heat exchanger 6 and the pipeline, so that the pipeline and the plate heat exchanger 6 are prevented from scaling, and the follow-up normal use is ensured.
The carbonization tank 1 is provided with at least 2.
The number of the activation kettles 9 is at least 2.
The homogenizing tank slurry outlet pump 4, the activation kettle slurry outlet pump 12 and the buffer tank slurry outlet pump 17 are one of a vertical or horizontal slurry pump, a slurry pump and a plunger slurry conveying pump.
The energy-saving heating device for the surface treatment of the nano calcium carbonate cooked pulp is applied to the actual production process, and the specific production flow is as follows: nano calcium carbonate slurry in the carbonization tank flows from a high-level flow to a homogenization tank 2 through a discharge pipeline of the carbonization tank 1, a homogenization discharge pipeline 3 of the homogenization tank 2 is connected with a homogenization tank slurry outlet pump 4, the homogenization tank slurry outlet pump 4 is started, nano calcium carbonate slurry is input into a plate heat exchanger 6 through a nano calcium carbonate slurry cooking feed pipeline 5 of the plate heat exchanger 6, heat is exchanged through the plate heat exchanger 6, and enters an activation feed pipeline 8 through a slurry cooking discharge pipeline 7 and then enters an activation kettle 9; meanwhile, the activated slurry subjected to surface activation treatment passes through an activated slurry outlet pipeline 11 of the other activation kettle 9, an activated slurry outlet pump 12 and an activated slurry feeding pipeline 13 of the plate heat exchanger 6, and after heat exchange of the plate heat exchanger 6, the activated slurry enters a buffering feeding pipeline 10 from an activated slurry outlet pipeline 14 of the plate heat exchanger 6, and then reaches an activated slurry buffer tank 15, and then enters a filter press 18 from a buffering discharge pipeline 16 of the activated slurry buffer tank 15 through a buffer tank slurry outlet pump 17, and nano calcium carbonate filter cakes are prepared through filter pressing.
The slurry entering the activation kettle 9 is further heated by saturated steam supplied by a steam pipeline 19, the tail end of the steam pipeline 19 is connected with a trumpet-shaped enlarged pipe 20, the trumpet-shaped enlarged pipe 20 is connected with a steam noise elimination heater 22 through a connecting flange 21, after the steam reaches a heater cavity 23, the steam is sprayed to the activation kettle 9 through a plurality of steam spray holes 24 distributed on the annular wall of the heater cavity 23, the nano calcium carbonate slurry inside the activation kettle 9 is heated, after the preset temperature is reached, a dissolved surface treating agent is added from a saponification tank 25, stirring is carried out for 1-2 hours, the process of activating surface treatment is completed, and the next working flow is entered.
After the whole process is finished, the machine is stopped, and then the steam flushing valve 27 is opened to open the steam flushing pipeline 26 on the boiled pulp feeding pipeline 5 and the activated pulp feeding pipeline 13, so that the plate heat exchanger 6 and the pipeline are flushed, and the pipeline and the plate heat exchanger are prevented from scaling.
Adopt the technical scheme of the utility model, carry out the heat exchange through the calcium carbonate thick liquids around to the cladding, reduce the temperature of thick liquids behind the cladding on the one hand, the cladding thick liquids are treated in on the other hand heating, adopt steam noise elimination heater heating simultaneously, can the noise elimination, improve steam utilization ratio, device simple structure, energy consumption are low, but greatly reduced manufacturing cost, equipment are difficult to the scale deposit, can stabilize product quality, realize energy saving and emission reduction and energy cyclic utilization. In addition, the temperature of the coated nano calcium carbonate cooked slurry is 75-95 ℃, if the nano calcium carbonate cooked slurry is directly subjected to filter pressing by a membrane filter press, the temperature is higher, the plate frame is easy to deform, the service life of the plate frame filter press is influenced, and the temperature of the treated slurry can be reduced and the slurry to be treated can be heated by utilizing a plate heat exchanger through heat exchange of the calcium carbonate slurry before and after surface treatment. The temperature of the slurry after heat exchange and surface treatment is usually 40-60 ℃, and then the slurry enters a membrane filter press for filter pressing, so that the damage to a plate frame of the membrane filter press is small, and the service life of the plate frame can be prolonged.
To sum up, the utility model relates to a ripe thick liquid surface treatment energy-saving heating device of nanometer calcium carbonate, structural design is reasonable, the flow is simple relatively, make ripe thick liquid earlier through the plate heat exchanger heat transfer with the good thick liquids of activation, rethread steam noise elimination heater further heats and improves activation temperature, it is great to have solved current heating device energy consumption, the extravagant serious scheduling problem of cost, be favorable to going on of the ripe thick liquid surface treatment process of nanometer calcium carbonate, reduction in production cost, stabilize product quality, realize energy saving and emission reduction and energy cyclic utilization's purpose, be applicable to industrial application.
The above, only be the better embodiment of the utility model, it is not right the utility model discloses do the restriction in any form, any does not break away from the technical scheme content of the utility model, according to the utility model discloses a technical entity is to any simple modification, transform material equivalence change and the modification of doing of above example, all still belong to the technical scheme's of the utility model within range.
Claims (5)
1. The utility model provides a nanometer calcium carbonate boiled thick liquid surface treatment energy-conserving heating device, includes carbonization unit, homogenization processing unit, heat transfer unit, surface treatment unit and aftertreatment unit, its characterized in that: the carbonization treatment unit comprises a carbonization tank, the homogenization treatment unit comprises a homogenization tank, the heat exchange unit comprises a plate heat exchanger, the surface treatment unit comprises an activation kettle, the post-treatment unit comprises a buffer tank, a discharge pipeline of the carbonization tank is connected with a homogenization feed pipeline of the homogenization tank, a homogenization tank slurry outlet pump is arranged on the homogenization discharge pipeline of the homogenization tank, the homogenization tank slurry outlet pump is connected with a boiled slurry feed pipeline of the plate heat exchanger, the boiled slurry discharge pipeline of the plate heat exchanger is connected with the activation feed pipeline of the activation kettle, a saponification tank is arranged above the activation kettle, the saponification tank is connected with the activation kettle through a pipeline, a steam silencing heater is arranged inside the activation kettle and comprises a heater cavity, and a plurality of steam spray holes are uniformly arranged on the heater cavity, the steam noise elimination heater is connected with the horn-shaped enlarged pipe through a connecting flange, the horn-shaped enlarged pipe is connected with a steam pipeline, a check valve is arranged on the steam pipeline, an activation kettle slurry outlet pump is arranged on an activation discharge pipeline of the activation kettle, the activation kettle slurry outlet pump is connected with an activation slurry feeding pipeline of the plate heat exchanger, the activation slurry discharge pipeline of the plate heat exchanger is connected with a buffering feeding pipeline of the buffering tank, a buffering tank slurry outlet pump is arranged on a buffering discharge pipeline of the buffering tank, and the buffering tank slurry outlet pump is connected with a feeding pipeline of the filter press; the carbonization tank, the homogenization tank, the activation kettle and the buffer tank are all internally provided with stirring devices.
2. The energy-saving heating device for surface treatment of the nano calcium carbonate ripened pulp as claimed in claim 1, is characterized in that: and steam flushing pipelines are arranged on the boiled pulp feeding pipeline and the activated pulp feeding pipeline, and a steam flushing valve is arranged on the steam flushing pipeline.
3. The energy-saving heating device for surface treatment of the nano calcium carbonate ripened pulp as claimed in claim 2, is characterized in that: the carbonization tank is provided with at least 2.
4. The energy-saving heating device for surface treatment of the nano calcium carbonate ripened pulp as claimed in claim 3, is characterized in that: the number of the activation kettles is at least 2.
5. The energy-saving heating device for surface treatment of the nano calcium carbonate ripened pulp as claimed in claim 4, is characterized in that: the homogenizing tank slurry outlet pump, the activation kettle slurry outlet pump and the buffer tank slurry outlet pump are one of a vertical or horizontal slurry pump, a slurry pump and a plunger slurry conveying pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921470573.5U CN211198623U (en) | 2019-09-05 | 2019-09-05 | Energy-conserving heating device of nanometer calcium carbonate boiled thick liquid surface treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921470573.5U CN211198623U (en) | 2019-09-05 | 2019-09-05 | Energy-conserving heating device of nanometer calcium carbonate boiled thick liquid surface treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211198623U true CN211198623U (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921470573.5U Expired - Fee Related CN211198623U (en) | 2019-09-05 | 2019-09-05 | Energy-conserving heating device of nanometer calcium carbonate boiled thick liquid surface treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211198623U (en) |
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2019
- 2019-09-05 CN CN201921470573.5U patent/CN211198623U/en not_active Expired - Fee Related
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Granted publication date: 20200807 Termination date: 20210905 |