CN110743476B - Multifunctional calcium hydroxide preparation tank and preparation method - Google Patents
Multifunctional calcium hydroxide preparation tank and preparation method Download PDFInfo
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- CN110743476B CN110743476B CN201810820106.4A CN201810820106A CN110743476B CN 110743476 B CN110743476 B CN 110743476B CN 201810820106 A CN201810820106 A CN 201810820106A CN 110743476 B CN110743476 B CN 110743476B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
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Abstract
The invention discloses a multifunctional calcium hydroxide preparation tank which comprises a feeder, a tank body, a stirring device, sediment removing equipment and cooling equipment, wherein the tank body comprises an inner reaction tank and an outer cooling tank, a sedimentation area is arranged at the bottom of the reaction tank, a sediment filter is connected to the bottom of the sedimentation area, and a cooling device is connected to the outside of the cooling tank. The invention also discloses a method for preparing calcium hydroxide by using the preparation tank. Compared with the prior art, the invention has the beneficial effects that: the cooling tank is combined with an external cooling device for cooling circulation, so that the temperature of the reaction tank is reduced, and the reaction is carried out more thoroughly; the content of calcium hydroxide is detected by a reaction detector in the reaction tank, so that the quality of the product is controlled; the sediment in the reaction tank is separated, so that the waste of raw materials is avoided while the sediment is removed.
Description
Technical Field
The invention relates to calcium hydroxide production equipment, in particular to a multifunctional calcium hydroxide preparation tank and a preparation method.
Background
Calcium hydroxide is used as a cheap and easily-obtained material and is widely applied to the building and chemical industry, calcium oxide is usually used as a raw material for preparing the calcium hydroxide, water is added into a special preparation tank for reaction to generate calcium hydroxide and carbon dioxide gas, wherein suspension formed by dissolving the calcium hydroxide in the water is often called lime milk, because a large amount of heat is generated in the reaction process, if the preparation tank cannot dissipate the reaction heat in time, the reaction temperature in the preparation tank is increased, the complete reaction is hindered, meanwhile, the solubility of the calcium hydroxide is reduced, the quality of the generated calcium hydroxide is influenced, and meanwhile, excessive calcium oxide raw material and impurities which do not participate in the reaction form sediment, so that the preparation tank is corroded, and the service life of equipment is influenced.
Disclosure of Invention
The invention aims to provide a calcium hydroxide preparation tank with multiple functions, a preparation method and a preparation method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a multifunctional calcium hydroxide preparation tank and a preparation method thereof comprise a feeder, a tank body, a stirring device, a sediment removing device and a cooling device, and are characterized in that the tank body comprises an inner layer reaction tank and an outer layer cooling tank, the upper end of the reaction tank is provided with a feed inlet and a reaction water inlet, the side edge of the reaction tank is provided with a reaction water outlet, the reaction water outlet is connected with a discharge pipe through a reaction water pump, the bottom of the reaction tank is provided with a sedimentation zone, the bottom of the sedimentation zone is connected with a sediment filter, the right end of the sediment filter is provided with a branch pipeline, the branch pipeline is connected with the reaction water outlet, the left side of the cooling tank is provided with a cooling water outlet, the right side of the cooling tank is provided with a cooling water inlet, the cooling water outlet is connected with a cooling water outlet pipe, the cooling water outlet pipe is connected with a cooling water pump, the stirring device is installed on the tank body through sealing bearings at two ends, a stirring motor is installed on the upper portion of the stirring device and connected with a stirring shaft, blades are installed on the stirring shaft, and a detector is further installed on the inner side of the reaction tank.
As a further scheme of the invention: the reaction tank and the cooling tank are not communicated with each other, and are separated by steel with better heat conductivity.
As a still further scheme of the invention: the thickness of the steel used between the reaction tank and the cooling tank is 2-5 mm.
As a still further scheme of the invention: the settling zone is arranged in a funnel shape which is convenient for the convergence of sediments.
As a still further scheme of the invention: the included angle formed by the left boundary and the right boundary of the section at the lower end of the settling zone is 60-90 degrees.
As a still further scheme of the invention: and a filter screen is arranged in the branch pipeline.
The preparation method of the calcium hydroxide by using the preparation tank comprises the following steps:
1) opening a reaction water inlet pipe to add reaction water with one third of the volume into the reaction tank;
2) turning on a stirring motor, and starting a stirring device;
3) opening a cooling water pump, starting cooling equipment and opening an exhaust port;
4) opening the feeder, and slowly and continuously adding the weighed calcium oxide into the reaction tank through the feed inlet;
5) continuously adding reaction water into the reaction tank through the reaction water inlet pipe until the volume of the liquid in the reaction tank reaches 80% of the total volume of the reaction tank, and closing the reaction water inlet pipe;
6) continuously reacting for 10-40min, and after the detector is prompted, closing the stirring device, and standing for 20-40 min;
7) starting a reaction water pump to pump out the calcium hydroxide solution in the reaction tank through a discharge pipe;
8) when one third of the calcium hydroxide solution in the reaction tank is left, starting a sediment filter to separate sediment in a sedimentation area, and simultaneously collecting part of the separated calcium hydroxide solution into a discharge pipe to be pumped out together;
9) and closing the feeding machine, the cooling water pump, the cooling equipment and the exhaust port to finish the preparation of the calcium hydroxide.
Compared with the prior art, the invention has the beneficial effects that: the cooling water pump sends the cooling water which absorbs the heat in the reaction tank into the cooler for cooling, and the cooled water enters the cooling tank through the cooling water inlet to continue the next continuous circulation, so that the temperature of the reaction tank is reduced, and the reaction is more thorough; after a detector in the reaction tank detects that the content of the calcium hydroxide reaches a standard, starting a reaction water pump, and pumping out a finished calcium hydroxide product through a discharge pipe to control the quality of the product; and after the sediment in the reaction tank reaches a certain amount, the sediment is separated by a sediment filter, and the separated part of the calcium hydroxide solution is filtered by a filter screen and then flows into a discharge pipe, so that the waste of raw materials is avoided while the sediment is removed.
Drawings
Fig. 1 is a schematic structural view of a calcium hydroxide preparation tank having various functions.
Fig. 2 is a schematic structural view of the sediment removal in a calcium hydroxide production tank having various functions.
Fig. 3 is a schematic structural diagram of a calcium hydroxide preparation tank having various functions in a plan view.
In the figure: 1-feeding machine, 2-reaction tank, 3-cooling tank, 4-cooling water outlet pipe, 5-cooling water pump, 6-detector, 7-sediment filter, 8-filter screen, 9-reaction water pump, 10-discharge pipe, 11-reaction water inlet pipe, 12-stirring motor, 13-stirring shaft, 14-blade, 15-sealed bearing, 16-feeding hole, 17-exhaust port, 18-cooler, 21-reaction water inlet, 22-reaction water outlet, 23-settling zone, 31-cooling water outlet and 32-cooling water inlet.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-3, a multifunctional calcium hydroxide preparation tank and a preparation method thereof, comprising a feeding machine 1, a tank body, a stirring device, a slag removing device and a cooling device, wherein the tank body comprises an inner layer reaction tank 2 and an outer layer cooling tank 3, the reaction tank 2 and the cooling tank 3 are separated from each other by steel with better heat conductivity, the thickness of the steel is 2mm, the upper end of the reaction tank 2 is provided with a feed inlet 16 and a reaction water inlet 21, the side edge of the reaction tank 2 is provided with a reaction water outlet 22, the reaction water outlet 22 is connected with a discharge pipe 10 by a reaction water pump 9, the bottom of the reaction tank 2 is provided with a settling zone 23, the settling zone 23 is arranged in a funnel shape for facilitating the accumulation of slag, the included angle formed by the left and right boundaries of the cross section of the lower end of the settling zone 23 is 60 degrees, the, the right-hand member of sediment filter 7 is opened there is the lateral conduit, and the lateral conduit is installed filter screen 8 and is linked to each other with reaction water outlet 22, it has cooling water outlet 31 to open in the left side of cooling tank 3, and it has cooling water inlet 32 to open on the right side of cooling tank 3, cooling water outlet 31 even has cooling outlet pipe 4, and cooling outlet pipe 4 even has cooling water pump 5, and cooling water pump 5 links to each other with 18 one end of cooler, and the cooler 18 other end links to each other with cooling water inlet 32, agitating unit install on the jar body through the sealed bearing 15 at both ends, agitator motor 12 is installed on agitating unit upper portion, and agitator motor 12 is connected with (mixing) shaft 13, install blade 14 on the (mixing) shaft 13, blade 14 total four groups, every group is.
The working principle of the invention is as follows: the feeder 1 and the reaction water inlet pipe 11 respectively send calcium oxide raw materials and water into the reaction tank 2, the raw materials in the reaction tank 2 react under the stirring of the stirring device to generate calcium hydroxide and carbon dioxide and release a large amount of heat, wherein the carbon dioxide is discharged from the exhaust port 17, the cooling water pump 5 sends cooling water which absorbs the heat in the reaction tank 2 in the cooling tank 3 into the cooler 18 for cooling, the cooled water enters the cooling tank 3 through the cooling water inlet 32 to continue the next continuous circulation, so that the temperature of the reaction tank 2 is reduced, and the reaction is carried out more thoroughly; after a detector 6 in the reaction tank 2 detects that the content of the calcium hydroxide reaches a standard, a reaction water pump 9 is started, and a finished product of the calcium hydroxide is pumped out through a discharge pipe 10, so that the quality of the product is controlled; the sediment in the reaction tank 2 reaches a certain amount and then is separated by a sediment filter 7, and the separated part of the calcium hydroxide solution is filtered by a filter screen 8 and then is converged into a discharge pipe 10, so that the waste of raw materials is avoided while the sediment is removed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (2)
1. The utility model provides a calcium hydrate preparation jar with multiple functions, includes feeder (1), a jar body, agitating unit, removes sediment equipment and cooling arrangement, its characterized in that, the jar body include inlayer retort (2) and outer cooling tank (3), open feed inlet (16) and reaction water inlet (21) on retort (2), open reaction water outlet (22) have on the side of retort (2), reaction water outlet (22) are connected with discharging pipe (10) through reacting water pump (9) outward, retort (2) bottom is provided with settling zone (23), the bottom of settling zone (23) is connected with sediment filter (7), sediment filter (7) right-hand member is opened has the lateral conduit, and the lateral conduit links to each other with reaction water outlet (22), open cooling water outlet (31) in the left side of cooling tank (3), open cooling water inlet (32) on the right side of cooling tank (3), the cooling water outlet (31) is connected with a cooling water outlet pipe (4), the cooling water outlet pipe (4) is connected with a cooling water pump (5), the cooling water pump (5) is connected with one end of a cooler (18), the other end of the cooler (18) is connected with a cooling water inlet (32), the stirring device is installed on the tank body through sealing bearings (15) at two ends, the upper part of the stirring device is provided with a stirring motor (12), the stirring motor (12) is connected with a stirring shaft (13), the stirring shaft (13) is provided with blades (14), and the inner side of the reaction tank (2) is also provided with a detector (6);
the reaction tank (2) and the cooling tank (3) are not communicated with each other, and the reaction tank (2) and the cooling tank (3) are separated by steel with better heat conductivity;
the thickness of steel used between the reaction tank (2) and the cooling tank (3) is 2-5 mm;
the settling zone (23) is arranged in a funnel shape for facilitating the convergence of sediments;
the included angle formed by the left boundary and the right boundary of the section at the lower end of the settling zone (23) is 60-90 degrees;
a filter screen (8) is arranged in the branch pipeline;
the calcium oxide raw material and the water are respectively fed into the reaction tank (2) by the feeder (1) and the reaction water inlet pipe (11), the raw material in the reaction tank (2) is stirred by the stirring device to react to generate calcium hydroxide and carbon dioxide and release a large amount of heat, wherein the carbon dioxide is discharged from the exhaust port (17), the cooling water which absorbs the heat in the reaction tank (2) in the cooling tank (3) is fed into the cooler (18) by the cooling water pump (5) to be cooled, the cooled water enters the cooling tank (3) through the cooling water inlet (32) to continue the next continuous circulation, and therefore the temperature of the reaction tank (2) is reduced; after a detector (6) in the reaction tank (2) detects that the content of the calcium hydroxide reaches a standard, a reaction water pump (9) is started, and a finished product of the calcium hydroxide is pumped out through a discharge pipe (10), so that the quality of the product is controlled; after the sediment in the reaction tank (2) reaches a certain amount, the sediment is separated by a sediment filter (7), and part of the separated calcium hydroxide solution is filtered by a filter screen (8) and then is converged into a discharge pipe (10).
2. A method for preparing calcium hydroxide using the preparation tank according to claim 1, comprising the steps of:
1) opening a reaction water inlet pipe (11) and adding reaction water with one third of volume into the reaction tank (2);
2) turning on the stirring motor (12) and starting the stirring device;
3) turning on a cooling water pump (5), starting cooling equipment, and opening an exhaust port (17);
4) opening the feeder (1), and slowly and continuously adding the weighed calcium oxide into the reaction tank (2) through the feed inlet (16);
5) continuously adding reaction water into the reaction tank (2) through the reaction water inlet pipe (11) until the volume of the liquid in the reaction tank (2) reaches 80% of the total volume of the reaction tank (2), and then closing the reaction water inlet pipe (11);
6) continuously reacting for 10-40min, and after the detector is prompted, closing the stirring device, and standing for 20-40 min;
7) starting a reaction water pump (9) to pump out the calcium hydroxide solution in the reaction tank (2) through a discharge pipe (10);
8) when one third of the calcium hydroxide solution in the reaction tank (2) is left, a sediment filter (7) is started to separate sediment in the sedimentation zone (23), and meanwhile, part of the separated calcium hydroxide solution is converged into a discharge pipe (10) to be pumped out together;
9) and (3) closing the feeding machine (1), the cooling water pump (5), the cooling equipment and the exhaust port (17) to finish the preparation of the calcium hydroxide.
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| CN201810820106.4A CN110743476B (en) | 2018-07-24 | 2018-07-24 | Multifunctional calcium hydroxide preparation tank and preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634199A (en) * | 2021-10-19 | 2021-11-12 | 海门瑞一医药科技有限公司 | Be used for pharmaceutical intermediate production and processing to use raw materials input mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111514771A (en) * | 2020-06-17 | 2020-08-11 | 河北化工医药职业技术学院 | Intelligent optimization system of limestone slurry production line |
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