CN210206366U - Preparation device of integrated multi-element absorbent for desulfurization, denitrification and dust removal - Google Patents

Preparation device of integrated multi-element absorbent for desulfurization, denitrification and dust removal Download PDF

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CN210206366U
CN210206366U CN201920561440.2U CN201920561440U CN210206366U CN 210206366 U CN210206366 U CN 210206366U CN 201920561440 U CN201920561440 U CN 201920561440U CN 210206366 U CN210206366 U CN 210206366U
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liquid
desulfurization
mixing
denitrification
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Wei Chen
陈伟
Zai Feng
冯再
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Sichuan Hengchuang Bolian Technology LLC
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Sichuan Hengchuang Bolian Technology LLC
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Abstract

The utility model discloses a can realize that liquid-solid mixes, liquid mixes to prepare out the preparation facilities that is used for SOx/NOx control to remove dust of the many first absorbent of oxysulfide and nitrogen oxide in can absorbing the flue gas simultaneously. The preparation device of the integrated multi-element absorbent for desulfurization, denitrification and dust removal comprises a liquid mixing device and a solid-liquid mixing device; the liquid mixing device comprises a mixing cylinder, a liquid outlet pipe is arranged at the bottom of the mixing cylinder, a liquid inlet pipe is arranged at the top of the mixing cylinder, and a flow switch and a one-way valve are arranged on the liquid inlet pipe; the solid-liquid mixing device comprises a support frame and a rotary annular rotary drum driven by a driving device; and a second liquid inlet pipe and a second liquid outlet pipe are arranged on the annular rotary drum, and valves are arranged on the second liquid inlet pipe and the second liquid outlet pipe. Adopt this a preparation facilities for desulfurization, denitrification and dust removal's many first absorbents of integration can guarantee that the adsorbent preparation in-process is difficult for receiving the external source pollution, guarantees the adsorbent later stage SOx/NOx control effect.

Description

Preparation device of integrated multi-element absorbent for desulfurization, denitrification and dust removal
Technical Field
The utility model relates to an environmental protection SOx/NOx control dust removal field of flue gas, concretely relates to preparation facilities that is used for SOx/NOx control dust removal's many first absorbents of integration.
Background
It is well known that: the desulfurization, denitrification and dust removal equipment is widely applied to the industries of thermal power generation, steel smelting, printing, dyeing, spinning and finishing, cement chemical industry, glass firing, mining metallurgy, leather tanning, food and beverage and the like; and various super-large, medium and small coal-fired, oil-fired and gas-fired boilers, and smelting furnaces, furnaces and sintering machines requiring flue gas treatment.
The existing flue gas desulfurization and denitration technologies comprise the technologies of a PAFP (polyamide-ether-phosphate-acrylate copolymer), an ACFP (AcFP), a pyrolusite method, an electron beam ammonia method, a pulse corona method, a gypsum wet method, a catalytic oxidation method, a microbial degradation method and the like.
1. Dry flue gas desulfurization technology:
the advantages are that: the dry flue gas desulfurization technology is a gas-solid reaction, and compared with a wet desulfurization system, the dry flue gas desulfurization technology has the advantages of simple equipment, small occupied area, lower investment and operation cost, convenient operation, low energy consumption, convenient disposal of products, no sewage treatment system and the like.
The disadvantages are as follows: but the reaction speed is slow, the desulfurization rate is low, and the advanced desulfurization rate can reach 60-80%. However, the existing method has the disadvantages of low desulfurization efficiency, low utilization rate of the absorbent, serious abrasion and scaling phenomena, high difficulty in equipment maintenance, low stability and reliability of equipment operation and short service life, and limits the application of the method.
And (4) classification: common dry flue gas desulfurization techniques include activated carbon adsorption, electron beam irradiation, charged dry sorbent injection, metal oxide desulfurization, and the like.
A typical dry desulfurization system injects a desulfurizing agent (e.g., limestone, dolomite, or slaked lime) directly into the furnace. Taking limestone as an example, when calcined at high temperature, the desulfurizing agent forms porous calcium oxide particles after calcination, which are in contact with SO in flue gas2Reaction to formCalcium sulfate to achieve the aim of desulfurization.
2. Wet flue gas desulfurization technology:
the advantages are that: the wet flue gas desulfurization technology is a gas-liquid reaction, has high reaction speed and high desulfurization efficiency which is generally higher than 90 percent, has mature technology and wide application range. The wet desulphurization technology is mature, the production operation is safe and reliable, and the wet desulphurization technology always occupies a leading position in a plurality of desulphurization technologies.
And (4) classification: the common wet flue gas desulfurization techniques include limestone-gypsum method, indirect limestone-gypsum method, lemon absorption method, etc.
The prior desulfurization technology is generally CaCO3Calcium based process, magnesium based process with MgO, Na2SO3Sodium process based on NH3The basic ammonia process, the organic base process based on organic base.
The existing wet flue gas denitration method utilizes a liquid absorbent to remove NOXThe principle of dissolution is used for purifying coal-fired flue gas. The biggest obstacle is that NO is very difficult to dissolve in water, often requiring the first oxidation of NO to NO2. For this purpose, NO is generally first passed through an oxidizing agent O3、ClO2Or KMnO4React and oxidize to generate NO2Then NO2Absorbed by water or alkaline solution to realize flue gas denitration.
Dilute nitric acid absorption process
Due to NO and NO2The solubility in nitric acid is much greater than in water (e.g., the solubility of NO in nitric acid at 12% concentration is 12 times greater than in water), so dilute nitric acid absorption is used to increase NOXThe removal rate technique is widely used. The absorption efficiency is obviously improved along with the increase of the concentration of the nitric acid, but the concentration of the nitric acid used in the actual operation is generally controlled within the range of 15-20% by taking the factors of industrial practical application, cost and the like into consideration. Absorption of NO by dilute nitric acidXThe efficiency of (A) is not only related to the concentration of (B) but also to the absorption temperature and pressure, and the low temperature and high pressure are beneficial to NOXAbsorption of (2).
Alkaline solution absorption method
The method adopts NaOH, KOH and Na2CO3、NH3·H2Alkaline solution of O and the like as absorbent for NOXChemical absorption is carried out, wherein ammonia (NH)3·H2O) is the highest. To further increase NOXThe two-stage absorption of ammonia-alkali solution is developed: first ammonia and NOXCarrying out complete gas phase reaction with water vapor to generate ammonium nitrate white smoke; then further absorbing the unreacted NO with an alkaline solutionX. Formation of nitrate and nitrite, NH4NO3、NH4NO2Will also dissolve in the alkaline solution. The absorption liquid is circulated for many times, and after the alkali liquor is exhausted, the solution containing nitrate and nitrite is concentrated and crystallized, and can be used as fertilizer.
The traditional desulfurization and denitrification process generally adopts a sectional process, has the defects of complex process, various reagents, high cost, easiness in secondary pollution and the like, and particularly has no proper solvent which can simultaneously absorb sulfur oxides and nitrogen oxides in flue gas, so that the step-by-step treatment is needed for desulfurization and denitrification of the flue gas. Therefore, the absorbent for treating the sulfur oxides and the nitrogen oxides should consider the factors of easy availability of raw materials, easy water solubility, no new pollutant increase, controllable cost, safe use and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can realize that liquid-solid mixes, liquid mixes to the preparation facilities of the many first absorbents that are used for SOx/NOx control dust removal of many first absorbents that can absorb sulfur oxide and nitrogen oxide in the flue gas simultaneously is prepared.
In order to achieve the above purpose, the present invention is realized by the following technical solutions: the device for preparing the integrated multi-element absorbent for desulfurization, denitrification and dust removal comprises a liquid mixing device and a solid-liquid mixing device;
the liquid mixing device comprises a mixing cylinder, the top of the mixing cylinder is provided with an opening, and the bottom of the mixing cylinder is provided with a liquid outlet pipe; a valve is arranged on the liquid outlet pipe;
a sealing cover is arranged at the opening of the top part; the sealing cover is provided with at least two liquid inlet pipes; the liquid inlet pipe is provided with a first one-way valve and a flow switch;
an exhaust pipe is arranged on the outer wall of the mixing cylinder, and a second one-way valve is arranged on the exhaust pipe;
the solid-liquid mixing device comprises an annular rotary drum, a rotary support and a support frame; the annular rotating drum has a central hole; the annular rotary drum is provided with an annular inner cavity;
one section of the annular inner cavity is a liquid outlet cavity, and the other section of the annular inner cavity is a mixing cavity; the bottom of the mixing cavity is provided with bosses which are uniformly distributed along the circumference;
a second liquid outlet pipe is arranged at the bottom of the liquid outlet cavity; a second valve is arranged on the second liquid outlet pipe;
a second liquid inlet pipe is arranged at the bottom of the mixing cavity; a third valve is arranged on the second liquid inlet pipe;
the front surface of the annular rotary drum is provided with a material adding port; the material adding port is provided with a sealing plate which can be opened and closed;
the rotary supports are arranged on two outer side surfaces of the annular rotary drum; one end of the rotating bracket extends into a central hole of the annular rotating drum and is provided with a rotating disc, and the axis of the rotating disc is collinear with the central line of the annular rotating drum;
the rotating disc is provided with a rotating shaft; the rotating shaft is fixedly connected with the rotating disc; the rotating shaft penetrates through a central hole of the annular rotating drum;
bearing seats are arranged at two ends of the rotating shaft; one end of the support frame is fixedly connected with the bearing seat;
and a driving device for driving the rotating shaft to rotate is arranged on the bearing seat at one end of the rotating shaft.
Further, the bottom of the mixing cylinder is conical.
Further, a connecting cylinder is arranged below the mixing cylinder; the liquid outlet pipe is positioned in the center of the connecting cylinder.
Preferably, the valve is a solenoid valve.
Furthermore, the bosses are uniformly distributed along the axial direction of the annular rotary drum, and a space is reserved between every two adjacent bosses along the axial direction of the annular rotary drum.
A preparation facilities for SOx/NOx control dust removal's many first absorbents of integration, its beneficial effect lies in: the utility model discloses a preparation facilities for desulfurization, denitrification and dust removal's integrated many first absorbents, owing to include liquid mixing arrangement and solid-liquid mixing arrangement, be provided with a plurality of check valves on the feed liquor pipe of liquid mixing arrangement, mix through the mixing drum simultaneously to be provided with the exhaust tube on the mixing drum, can realize the evacuation of mixing drum; therefore, the accuracy of the proportion of each component in the preparation process of the absorbent can be improved, the absorbent is not easily polluted by external sources, and the later desulfurization and denitrification effects of the absorbent are ensured;
the solid-liquid mixing device realizes stirring through the annular rotary drum; so that the solid solute can be fully dissolved and fully mixed; meanwhile, the obtained solvent can be prevented from being adhered to the inner wall of the device; resulting in waste of solvent.
Drawings
FIG. 1 is a general assembly diagram of a device for preparing an integrated multi-component absorbent for desulfurization, denitrification and dust removal in the embodiment of the present invention;
fig. 2 is a perspective view of a liquid mixing device in an embodiment of the present invention;
FIG. 3 is a front view of a liquid mixing apparatus according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a front view of the solid-liquid mixing device in the embodiment of the present invention;
FIG. 6 is a side view of a solid-liquid mixing apparatus in an embodiment of the present invention;
FIG. 7 is a cross-sectional view B-B of FIG. 6;
FIG. 8 is a cross-sectional view C-C of FIG. 5;
the following are marked in the figure: 100-liquid mixing device and 200-solid-liquid mixing device.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1-8; the utility model discloses a preparation device of integrated multi-element absorbent for desulfurization, denitrification and dust removal, which comprises a liquid mixing device 100 and a solid-liquid mixing device 200;
the liquid mixing device 100 comprises a mixing cylinder 1, wherein the top of the mixing cylinder 1 is provided with an opening, and the bottom of the mixing cylinder 1 is provided with a liquid outlet pipe 9; a valve 10 is arranged on the liquid outlet pipe 9;
a sealing cover 2 is arranged at the opening of the top part; the sealing cover 2 is provided with at least two liquid inlet pipes 3; the liquid inlet pipe 3 is provided with a first one-way valve 4 and a flow switch 5;
an air exhaust pipe 6 is arranged on the outer wall of the mixing drum 1, and a second one-way valve 7 is arranged on the air exhaust pipe 6;
the solid-liquid mixing device 200 comprises an annular rotary drum 21, a rotary bracket 22 and a support bracket 211; the annular drum 21 has a central hole; the annular drum 21 has an annular inner cavity 24;
one section of the annular inner cavity 24 is a liquid outlet cavity 213, and the other sections are mixing cavities; the bottom of the mixing cavity is provided with bosses 25 which are uniformly distributed along the circumference;
a second liquid outlet pipe 28 is arranged at the bottom of the liquid outlet cavity 213; a second valve 29 is arranged on the second liquid outlet pipe 28;
a second liquid inlet pipe 26 is arranged at the bottom of the mixing cavity; a third valve 27 is arranged on the second liquid inlet pipe 26;
the front surface of the annular rotary drum 21 is provided with a material adding port; the material adding port is provided with a sealing plate 214 which can be opened and closed;
the rotating supports 22 are arranged on two outer side surfaces of the annular drum 21; one end of the rotating bracket 22 extends into a central hole of the annular rotating drum 21 and is provided with a rotating disc, and the axis of the rotating disc is collinear with the central line of the annular rotating drum 21;
a rotating shaft 23 is arranged on the turntable; the rotating shaft 23 is fixedly connected with the turntable; the rotating shaft 23 penetrates through the central hole of the annular rotating drum 21;
bearing seats 210 are arranged at two ends of the rotating shaft 23; one end of the support frame 211 is fixedly connected with the bearing seat 210;
a bearing seat 210 at one end of the rotating shaft 23 is provided with a driving device 212 for driving the rotating shaft 23 to rotate.
The specific application process is as follows:
the solvent of the integrated multi-element absorbent for desulfurization, denitrification and dust removal is water, and the integrated multi-element absorbent comprises sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium oxide, ethylenediamine, hydrogen peroxide, sodium stearate, glycerol, coconut oil and eucalyptus oil; wherein sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium oxide and sodium stearate are all solid; ethylenediamine, hydrogen peroxide, glycerin, coconut oil and eucalyptus oil are liquid, and the solvent is water; therefore, in the preparation of the multi-component absorbent, it is necessary to first mix sodium oxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium oxide, and sodium stearate with water so that sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium oxide, and sodium stearate are dissolved in water; then obtaining a mixture of sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium hydroxide and sodium stearate solution, and then mixing the sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium hydroxide and sodium stearate solution with ethylenediamine, hydrogen peroxide, glycerol, coconut oil and eucalyptus oil to finally obtain the desulfurization, denitrification and dedusting integrated multi-element absorbent.
Specifically, mixing sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium oxide, sodium stearate and water by a solid-liquid mixing device; by opening an openable and closable seal plate 214 on the annular drum of the solid-liquid mixing device; predetermined amounts of sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium oxide and sodium stearate prepared in advance are put into the annular inner chamber 24, and then the sealing plate 214 is closed; then distilled water is introduced through a second liquid inlet pipe 26 arranged on the annular rotary drum 21; specifically, the third valve 27 is opened to deliver a predetermined amount of distilled water into the annular chamber 24; the third valve 27 is then closed; then, the driving device 212 is started to rotate the rotating shaft 23, so as to drive the annular rotary drum 21 to rotate, and after the rotating shaft rotates for a certain time, the rotation is stopped, so that the sodium hydroxide, the sodium carbonate, the sodium bicarbonate, the sodium sulfite, the calcium oxide and the sodium stearate are uniformly and fully dissolved in the distilled water.
Then the second valve 29 on the second liquid outlet pipe 28 is opened, and the solvent passes through a solvent guide pipe or a solvent transfer vessel; conveying the obtained mixed solution of sodium hydroxide, calcium hydroxide and sodium stearate into a liquid inlet pipe 3 on a sealing cover 2 in a liquid mixing device;
when the liquid mixing device is used for mixing liquid, the liquid mixing device is firstly connected with a vacuumizing device through an exhaust pipe 6, and the vacuumizing device can adopt a vacuumizing pump; a manual air draft device can also be adopted; then, when the valve 10 is closed, the interior of the mixing cylinder 1 is pumped into approximate vacuum by a vacuum pumping device; simultaneously, the ethylenediamine and the hydrogen peroxide are respectively introduced into different liquid inlet pipes 3 through a vessel or a liquid conveying device; the vessel can adopt a measuring cup and a funnel, and the liquid conveying device can adopt a conveying pump; in large-scale equipment, a liquid is generally conveyed into the liquid inlet pipe 3 by a conveying pump; then the check valve 4 is opened, and the upper limit value of the flow switch 5 is set; the upper limit value of each flow switch 5 corresponds to the mixed amount of the solvent.
So that the sodium hydroxide, the sodium carbonate, the sodium bicarbonate, the sodium sulfite, the mixed solution of the calcium hydroxide and the sodium stearate, the ethylenediamine, the hydrogen peroxide, the glycerin, the coconut oil and the eucalyptus oil are respectively mixed in the mixing cylinder 1 according to a predetermined metering.
After predetermined amounts of sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, a mixed solution of calcium hydroxide and sodium stearate, ethylenediamine, hydrogen peroxide, glycerin, coconut oil and eucalyptus oil are introduced, waiting for a period of time, and opening a valve 10 to lead out the prepared integrated multi-element absorbent for desulfurization, denitrification and dust removal through a container or a solvent conduit. Thereby completing the preparation of the integrated multi-element absorbent for desulfurization, denitrification and dust removal.
To sum up, the preparation device of the integrated multi-element absorbent for desulfurization, denitrification and dust removal, provided by the utility model, comprises the liquid mixing device and the solid-liquid mixing device, wherein the liquid inlet pipe of the liquid mixing device is provided with the plurality of one-way valves, and the liquid is mixed by the mixing cylinder, and the mixing cylinder is provided with the exhaust pipe, so that the vacuum pumping of the mixing cylinder can be realized; therefore, the accuracy of the proportion of each component in the preparation process of the absorbent can be improved, the absorbent is not easily polluted by external sources, and the later desulfurization and denitrification effects of the absorbent are ensured; the solid-liquid mixing device realizes stirring through the annular rotary drum; so that the solid solute can be fully dissolved and fully mixed; meanwhile, the obtained solvent can be prevented from being adhered to the inner wall of the device; resulting in waste of solvent.
In order to reduce the adhesion of the solvent to the wall of the mixing drum 1; the bottom of the mixing cylinder 1 is conical.
In order to facilitate the installation of the solvent transfer vessel, a connecting cylinder 8 is further arranged below the mixing cylinder 1; the liquid outlet pipe 9 is positioned at the center of the connecting cylinder 8.
To facilitate the control of the valve 10, it is preferable that the valve 10 employs a solenoid valve.
In order to avoid the liquid volume existing between the bosses 25, further, the bosses 25 are uniformly distributed along the axial direction of the annular drum 21, and a space 251 is provided between two adjacent bosses 25 along the axial direction of the annular drum 21.
The preparation device of the integrated multi-element absorbent for desulfurization, denitrification and dust removal can be used for preparing the integrated multi-element absorbent for desulfurization, denitrification and dust removal, wherein the solvent of the integrated multi-element absorbent for desulfurization, denitrification and dust removal is water and comprises a mixture I, one or more of calcium oxide, ethylenediamine, hydrogen peroxide and a mixture II;
the first mixture comprises one or more of sodium hydroxide, sodium carbonate, sodium bicarbonate and sodium sulfite; the mixture II comprises one or more of sodium stearate, glycerin, coconut oil and eucalyptus oil;
wherein the mass percentage of the first mixture to the calcium oxide is 1: 1-1: 10; the mass percentage of the mixture I and the ethylenediamine is 1: 1-1: 5; the mass percentage of the mixture I and hydrogen peroxide is 10: 1-1: 1; the mass percentage of the first mixture to the second mixture is 20: 1-2: 1; wherein, the total mass percent of the mixture I and the calcium oxide is 5 to 30 percent, and the total mass percent of the mixture II is 2 to 30 percent; the mass percentage of the water is 40-93%.
Example 1
The integrated multi-element absorbent for desulfurization, denitrification and dust removal is prepared by the preparation device of the integrated multi-element absorbent for desulfurization, denitrification and dust removal; then the integrated multi-element absorbent for desulfurization, denitrification and dust removal is adopted to carry out desulfurization, denitrification and dust removal treatment on the flue gas.
Specifically, the solvent of the multi-element absorbent for desulfurization, denitrification and dust removal is water, and the multi-element absorbent comprises sodium hydroxide, calcium oxide, ethylenediamine, hydrogen peroxide and sodium stearate; wherein, 5 parts of sodium hydroxide, 10 parts of calcium oxide, 5 parts of ethylenediamine, 5 parts of hydrogen peroxide and 2 parts of sodium stearate are dissolved in 73 parts of water; then passing through a laminar flow multistage reactor to the flue gas (the inlet concentration SO2 is 1000-3NOx of 1000-2000mg/m3500-2000mg/m of particles3) Carrying out desulfurization, denitrification and dust removal treatment; the desulfurization rate of the finally treated flue gas is 99.1%, the denitration rate is 98.2%, and the particulate matter removal rate is 99.99%.
The integrated multi-element absorbent for desulfurization, denitrification and dust removal is prepared by the preparation device of the integrated multi-element absorbent for desulfurization, denitrification and dust removal; then the integrated multi-element absorbent for desulfurization, denitrification and dust removal is adopted to carry out desulfurization, denitrification and dust removal treatment on the flue gas.
Specifically, the solvent of the integrated multi-element absorbent for desulfurization, denitrification and dust removal is water, and the solvent comprises sodium hydroxide, sodium bicarbonate, calcium oxide, ethylenediamine, hydrogen peroxide and coconut oil; wherein 3 parts of sodium hydroxide, 2 parts of sodium bicarbonate, 12 parts of calcium oxide, 6 parts of ethylenediamine, 6 parts of hydrogen peroxide and 1 part of coconut oil are dissolved in 70 parts of water; then passing through laminar flow multistage reactor to treat flue gas (inlet concentration SO)2Is 1500-3NOx of 1500-31000-class 3000 mg/m of particles3) Carrying out desulfurization, denitrification and dust removal treatment; the desulfurization rate of the finally treated flue gas is 99.2%, the denitration rate is 98.4%, and the particulate matter removal rate is 99.99%.
Example 3
The integrated multi-element absorbent for desulfurization, denitrification and dust removal is prepared by the preparation device of the integrated multi-element absorbent for desulfurization, denitrification and dust removal; then the integrated multi-element absorbent for desulfurization, denitrification and dust removal is adopted to carry out desulfurization, denitrification and dust removal treatment on the flue gas.
Specifically, the solvent of the integrated multi-element absorbent for desulfurization, denitrification and dust removal is water, and the solvent comprises sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium sulfite, calcium oxide, ethylenediamine, hydrogen peroxide, sodium stearate, glycerol, coconut oil and eucalyptus oil; wherein, 2 parts of sodium hydroxide, 2 parts of sodium carbonate, 1 part of sodium bicarbonate, 3 parts of sodium sulfite, 15 parts of calcium oxide, 7 parts of ethylenediamine, 7 parts of hydrogen peroxide, 0.5 part of sodium stearate, 0.2 part of glycerol, 0.2 part of coconut oil and 0.1 part of eucalyptus oil are dissolved in 62 parts of water; then passing through laminar flow multistage reactor to treat flue gas (inlet concentration SO)22000-4000mg/m3NOx of 2000-4000mg/m32000-5000mg/m of particles3) Carrying out desulfurization, denitrification and dust removal treatment; the desulfurization rate of the finally treated flue gas is 99.4%, the denitration rate is 98.7%, and the particulate matter removal rate is 99.99%.
In conclusion, the integrated multi-element absorbent for desulfurization, denitrification and dust removal can realize desulfurization, denitrification and dust removal of flue gas at the same time, and ensures that the desulfurization, denitrification and dust removal rates are all over 98%.

Claims (5)

1. A preparation facilities for many absorbent of integration that SOx/NOx control removed dust, its characterized in that: comprises a liquid mixing device (100) and a solid-liquid mixing device (200);
the liquid mixing device (100) comprises a mixing cylinder (1), the top of the mixing cylinder (1) is provided with an opening, and the bottom of the mixing cylinder (1) is provided with a liquid outlet pipe (9); a valve (10) is arranged on the liquid outlet pipe (9);
a sealing cover (2) is arranged at the opening of the top part; the sealing cover (2) is provided with at least two liquid inlet pipes (3); the liquid inlet pipe (3) is provided with a first one-way valve (4) and a flow switch (5);
an air exhaust pipe (6) is arranged on the outer wall of the mixing barrel (1), and a second one-way valve (7) is arranged on the air exhaust pipe (6);
the solid-liquid mixing device (200) comprises an annular rotary drum (21), a rotary bracket (22) and a support frame (211); the annular drum (21) has a central hole; the annular drum (21) has an annular inner cavity (24);
one section of the annular inner cavity (24) is a liquid outlet cavity (213) and the rest are mixing cavities; the bottom of the mixing cavity is provided with bosses (25) which are uniformly distributed along the circumference;
a second liquid outlet pipe (28) is arranged at the bottom of the liquid outlet cavity (213); a second valve (29) is arranged on the second liquid outlet pipe (28);
a second liquid inlet pipe (26) is arranged at the bottom of the mixing cavity; a third valve (27) is arranged on the second liquid inlet pipe (26);
the front surface of the annular rotary drum (21) is provided with a material adding port; the material adding port is provided with a sealing plate (214) which can be opened and closed;
the rotary supports (22) are arranged on two outer side surfaces of the annular rotary drum (21); one end of the rotating bracket (22) extends into a central hole of the annular rotating drum (21) and is provided with a rotating disc, and the axis of the rotating disc is collinear with the central line of the annular rotating drum (21);
a rotating shaft (23) is arranged on the rotating disc; the rotating shaft (23) is fixedly connected with the turntable; the rotating shaft (23) penetrates through a central hole of the annular rotating cylinder (21);
bearing seats (210) are arranged at two ends of the rotating shaft (23); one end of the support frame (211) is fixedly connected with the bearing seat (210);
and a driving device (212) for driving the rotating shaft (23) to rotate is arranged on the bearing seat (210) at one end of the rotating shaft (23).
2. The apparatus for preparing the integrated multi-element absorbent for desulfurization, denitrification and dust removal according to claim 1, wherein: the bottom of the mixing cylinder (1) is conical.
3. The apparatus for preparing the integrated multi-element absorbent for desulfurization, denitrification and dust removal according to claim 2, wherein: a connecting cylinder (8) is arranged below the mixing cylinder (1); the liquid outlet pipe (9) is positioned at the center of the connecting cylinder (8).
4. The apparatus for preparing the integrated multi-element absorbent for desulfurization, denitrification and dust removal according to claim 3, wherein: the valve (10) adopts an electromagnetic valve.
5. The apparatus for preparing the integrated multi-element absorbent for desulfurization, denitrification and dust removal according to claim 4, wherein: the bosses (25) are uniformly distributed along the axial direction of the annular rotary drum (21), and a space (251) is reserved between every two adjacent bosses (25) along the axial direction of the annular rotary drum (21).
CN201920561440.2U 2019-04-22 2019-04-22 Preparation device of integrated multi-element absorbent for desulfurization, denitrification and dust removal Active CN210206366U (en)

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