CN111559881A - Preparation process of concrete additive water reducing agent - Google Patents
Preparation process of concrete additive water reducing agent Download PDFInfo
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- CN111559881A CN111559881A CN202010424767.2A CN202010424767A CN111559881A CN 111559881 A CN111559881 A CN 111559881A CN 202010424767 A CN202010424767 A CN 202010424767A CN 111559881 A CN111559881 A CN 111559881A
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- China
- Prior art keywords
- filtering
- frame
- reducing agent
- water reducing
- concrete additive
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000000654 additive Substances 0.000 title claims abstract description 21
- 230000000996 additive effect Effects 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 154
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 111
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 29
- 238000003825 pressing Methods 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 18
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 12
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000006460 hydrolysis reaction Methods 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 claims description 6
- 238000006277 sulfonation reaction Methods 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000006482 condensation reaction Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 3
- -1 naphthalene sulfonated formaldehyde Chemical class 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims 2
- 239000012528 membrane Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/20—Sulfonated aromatic compounds
- C04B24/22—Condensation or polymerisation products thereof
- C04B24/226—Sulfonated naphtalene-formaldehyde condensation products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
- B01D33/0346—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements
- B01D33/0376—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements supported
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/29—Filters with filtering elements which move during the filtering operation the movement of the filter elements being a combination of movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element
- B01D33/54—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a preparation process of a concrete additive water reducing agent, which comprises a bottom plate, a filtering device and a sealing frame, wherein the filtering device is installed at the upper end of the bottom plate, an open slot is formed in the upper end of the filtering device, the sealing frame is arranged in the open slot and is connected with the filtering device through screws, and a liquid inlet valve is arranged in the middle of the upper end of the sealing frame. The invention can solve the problems that when the existing equipment is used for filtering, preparing and processing the water reducing agent, the solution to be filtered is usually directly injected into the upper end of the filter membrane, so that the solution of the filter membrane is damaged by stress, the service life of the filter membrane is influenced, meanwhile, the replacement effect of the filter membrane is poor, the operation is complex, and when the existing equipment is used for filtering, preparing and processing the water reducing agent, the raw materials collected by filtering are usually easy to accumulate on the surface of the filter membrane, the raw materials are easy to block filter meshes, the filtering efficiency of the solution is influenced, and the like.
Description
Technical Field
The invention relates to the field of preparation and processing of concrete additives, in particular to a preparation process of a water reducing agent of a concrete additive.
Background
The naphthalene water reducing agent is a concrete additive invented by Kai Jian Bao Shi of Japan in 1962, is a chemical synthesis product of naphthalene sulfonic acid formaldehyde condensation compound, and takes industrial naphthalene, concentrated sulfuric acid, formaldehyde and alkali as main raw materials. The naphthalene water reducer is added into the concrete, so that the strength of the concrete can be improved, and various performances of the concrete, such as abrasion resistance, corrosion resistance, permeability resistance and the like, can be improved, therefore, the naphthalene water reducer is widely applied to the industries of highways, bridges, tunnels, wharfs, civil buildings and the like.
At present, the existing water reducing agent generally has the following defects in the preparation and processing process: 1. when the existing equipment is used for filtering, preparing and processing the water reducing agent, the solution to be filtered is usually directly injected into the upper end of the filter membrane, so that the solution of the filter membrane is damaged under stress, the service life of the filter membrane is influenced, and meanwhile, the filter membrane is poor in replacement effect and complex in operation; 2. when the existing equipment filters the water reducing agent to prepare and process, the raw materials collected by filtration are usually easy to accumulate on the surface of a filtration membrane, and the raw materials easily block the filtration mesh to influence the filtration efficiency of the solution.
Disclosure of Invention
Technical problem to be solved
The invention can solve the problems that when the existing equipment is used for filtering, preparing and processing the water reducing agent, the solution to be filtered is usually directly injected into the upper end of the filter membrane, so that the solution of the filter membrane is damaged by stress, the service life of the filter membrane is influenced, meanwhile, the replacement effect of the filter membrane is poor, the operation is complex, and when the existing equipment is used for filtering, preparing and processing the water reducing agent, the raw materials collected by filtering are usually easy to accumulate on the surface of the filter membrane, the raw materials are easy to block filter meshes, the filtering efficiency of the solution is influenced, and the like.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme that the preparation process of the concrete additive water reducing agent adopts the following processing equipment, the processing equipment comprises a bottom plate, a filtering device and a sealing frame, the upper end of the bottom plate is provided with the filtering device, the upper end of the filtering device is provided with an open slot, the sealing frame is arranged in the open slot, the sealing frame is connected with the filtering device through a screw, and the middle part of the upper end of the sealing frame is provided with a liquid inlet valve.
The filtering device comprises a filtering box body, a baffle plate, a feeding mechanism, a filtering mechanism, a pressing mechanism and a shaking mechanism, wherein the filtering box body is arranged in the middle of the upper end of a bottom plate, the baffle plate is arranged at the upper end inside the filtering box body, through holes are uniformly formed in the baffle plate, the feeding mechanism is arranged in the through holes, the filtering mechanism is arranged at the lower end inside the filtering box body, the pressing mechanisms are symmetrically arranged inside the filtering mechanism, the shaking mechanism is arranged in the filtering mechanism, the filtering mechanism is positioned between the pressing mechanisms, the upper end of the shaking mechanism is connected with the feeding mechanism, when the device works in detail, a solution to be processed is manually injected into a sealing frame through a high-pressure pump, the feeding mechanism can uniformly disperse the solution on the filtering mechanism, the filtering area of the filtering mechanism is increased, the pressing mechanism can press the filtering mechanism, the filtering tightness is ensured, and the shaking, the filtering efficiency of the filtering mechanism is improved.
Filtering mechanism include blowing frame, rolling frame, filtering film, diaphragm and guide roll, the inside symmetry of filtering box install the diaphragm, evenly install the guide roll between the diaphragm, the blowing frame is installed to filtering box left side upper end, the rolling frame is installed to filtering box left side lower extreme, be provided with filtering film between rolling frame and the blowing frame, filtering film is the S type along the guide roll and arranges, concrete during operation, filtering film can filter the collection to the material in the solution, the guide roll can prolong filtering film' S filter area, improve the filter effect of solution, after filtering film uses for a long time, manual regulation rolling frame, and then can collect the film after using, it is convenient to adjust, do benefit to the use.
The preparation process of the concrete additive water reducing agent comprises the following steps:
s1, naphthalene conversion: at normal temperature, the naphthalene is solid, and the fixed naphthalene is put into a reaction kettle to be heated and melted;
s2, sulfonation: adding concentrated sulfuric acid into the reaction kettle to react with the naphthalene melted in the step S1 to generate naphthalene sulfonic acid, wherein the naphthalene sulfonic acid comprises alpha-naphthalene sulfonic acid and beta-naphthalene sulfonic acid;
s3, hydrolysis: adding water into the reaction kettle in the step S2 to perform hydrolysis reaction on the alpha-naphthalenesulfonic acid;
s4, condensation: after the hydrolysis reaction in the step S3 is finished, formaldehyde is dripped into the reaction kettle to react with beta-naphthalenesulfonic acid to generate a naphthalene sulfonated formaldehyde condensate;
s5, neutralization: dropwise adding alkali liquor into the reaction kettle after the condensation reaction in the step S4, neutralizing excessive sulfuric acid in the sulfonation reaction, and stopping dropwise adding when the PH reaches 7-9;
s6, filtering: injecting the neutralized solution in the step S5 into the sealing frame through a high-pressure pump, wherein the solution can be uniformly dispersed on the filtering mechanism by the feeding mechanism, the filtering area of the filtering mechanism is increased, the end part of the filtering film can be pressed by the pressing mechanism, the filtering tightness is ensured, the shaking mechanism can drive the filtering film to shake up and down, and the filtering efficiency of the filtering film is increased;
s7, drying and collecting: the raw material filtered and collected in step S6 is dried, collected and stored.
Preferably, feed mechanism including advance liquid frame, turbine disc, pivot and rotating gear, the inside upper end of through-hole install into liquid frame, advance the liquid frame and be the inside inlet that is provided with the slope, the pivot is installed through the bearing to the inside lower extreme of through-hole, the turbine disc is installed to the pivot upper end, rotating gear is installed to the pivot lower extreme, rotating gear meshes with rocking mechanism mutually, concrete during operation, when solution is when sealed frame is inside through the high-pressure pump injection, high-pressure liquid gets into in the through-hole through the feed liquor frame, and then can be with solution homodisperse on filtering mechanism, improve filtering mechanism's filter area, can drive the turbine disc rotation with high-pressure liquid simultaneously, the turbine disc drives through rotating gear and rocks the mechanism and adjusts from top to bottom.
Preferably, hold-down mechanism include mount, spout, regulation pole, slider and pressure strip, the mount install inside filtering mechanism, the mount middle part evenly is provided with the spout, the symmetry is provided with the recess on the mount, install the regulation pole through the bearing in the recess, be connected with the slider through screw-thread fit's mode on the regulation pole, the pressure strip is installed to the slider inboard, specific during operation, artifical through adjusting the pole and driving slider synchronous motion, the slider can compress tightly the filter membrane tip, guarantees the filter effect of liquid.
Preferably, the rocking mechanism include shake the frame, expanding spring, the axis of rotation, connecting gear and cam, filtering mechanism inside evenly be provided with the sliding tray, the sliding tray is inside to be connected with through sliding fit's mode and to shake the frame, it installs expanding spring to rock between frame lower extreme and the sliding tray, it is provided with the axis of rotation to rock the frame top, the axis of rotation passes through the bearing and installs on filtering mechanism, axis of rotation mid-mounting has connecting gear, connecting gear meshes with feed mechanism mutually, the cam is installed to the symmetry in the axis of rotation, the cam with shake the frame and hug closely, concrete during operation, when the running gear in feed mechanism drives when connecting gear rotates, connecting gear drives the cam through the axis of rotation and rotates, the cam and then can drive the filter membrane up-and-down motion through rocking the frame, improve filter membrane.
Preferably, the pressure strip is located the spout, and the pressure strip lower extreme is provided with the rubber pad.
Preferably, the shaking frame is of a rectangular structure, through grooves are uniformly formed in the shaking frame, and balls are uniformly arranged in the through grooves.
(III) advantageous effects
1. According to the preparation process of the concrete additive water reducing agent, the filtering mechanism can effectively filter the solution, the filtering effect is good, the service life is long, and meanwhile, the filtering film is convenient to replace and beneficial to use;
2. according to the preparation process of the concrete additive water reducing agent, the pressing mechanism can effectively press and fix the end part of the filtering film, so that a gap between the filtering film and the filtering box body is prevented, and the solution can be fully filtered;
3. according to the preparation process of the concrete additive water reducing agent, the shaking mechanism can effectively drive the filtering film to move up and down, so that the phenomenon that the filtering meshes are blocked due to the accumulation of raw materials on the filtering film is avoided, and the filtering effect of the filtering film is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic cross-sectional view of the filtering box, the striker plate and the feeding mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of the hold-down mechanism of the present invention;
FIG. 5 is a schematic cross-sectional view of the cross plate and the rocking mechanism of the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 5, the preparation process of the concrete additive water reducing agent adopts the following processing equipment, the processing equipment comprises a bottom plate 1, a filtering device 2 and a sealing frame 3, the filtering device 2 is installed at the upper end of the bottom plate 1, an open slot is formed in the upper end of the filtering device 2, the sealing frame 3 is arranged in the open slot, the sealing frame 3 is connected with the filtering device 2 through a screw, and a liquid inlet valve is arranged in the middle of the upper end of the sealing frame 3.
The filtering device 2 comprises a filtering box body 21, a baffle plate 22, a feeding mechanism 23, a filtering mechanism 24, a pressing mechanism 25 and a shaking mechanism 26, wherein the filtering box body 21 is arranged in the middle of the upper end of a bottom plate 1, the baffle plate 22 is arranged at the upper end inside the filtering box body 21, through holes are uniformly formed in the baffle plate 22, the feeding mechanism 23 is arranged in the through holes, the filtering mechanism 24 is arranged at the lower end inside the filtering box body 21, the pressing mechanisms 25 are symmetrically arranged inside the filtering mechanism 24, the shaking mechanism 26 is arranged in the filtering mechanism 24, the filtering mechanism 24 is positioned between the pressing mechanisms 25, the upper end of the shaking mechanism 26 is connected with the feeding mechanism 23, when the filtering device works specifically, a solution to be processed is manually injected into a sealing frame 3 through a high-pressure pump, the feeding mechanism 23 can uniformly disperse the solution on the filtering mechanism 24, the filtering area of the filtering mechanism 24 is increased, the pressing mechanism, the sealing performance of the filtering is ensured, the shaking mechanism 26 can drive the filtering mechanism 24 to shake up and down, and the filtering efficiency of the filtering mechanism 24 is improved.
The filtering mechanism 24 comprises a material discharging frame 241, a winding frame 242, a filtering film 243, transverse plates 244 and guide rollers 245, the transverse plates 244 are symmetrically arranged inside the filtering box body 21, the guide rollers 245 are uniformly arranged between the transverse plates 244, the material discharging frame 241 is arranged at the upper end of the left side of the filtering box body 21, the winding frame 242 is arranged at the lower end of the left side of the filtering box body 21, the filtering film 243 is arranged between the winding frame 242 and the material discharging frame 241, the filtering film 243 is arranged in an S shape along the guide rollers 245, in the specific working process, the filtering film 243 can filter and collect substances in the solution, the filtering area of the filtering film 243 can be prolonged by the guide rollers 245, the filtering effect of the solution is improved, after the filtering film 243 is used for a long time, the winding frame 242 is manually adjusted, and then the used film can be collected.
The pressing mechanism 25 comprises a fixing frame 251, a sliding groove 252, an adjusting rod 253, a sliding block 254 and a pressing plate 255, the fixing frame 251 is installed inside the filtering mechanism 24, the sliding groove 252 is evenly formed in the middle of the fixing frame 251, grooves are symmetrically formed in the fixing frame 251, the adjusting rod 253 is installed in the grooves through bearings, the sliding block 254 is connected to the adjusting rod 253 in a threaded fit mode, the pressing plate 255 is installed on the inner side of the sliding block 254, the pressing plate 255 is located in the sliding groove 252, a rubber pad is arranged at the lower end of the pressing plate 255, during specific work, manual work drives the sliding block 254 to move synchronously through the adjusting rod 253, and the end of the filtering film 243 can be pressed by the sliding.
The shaking mechanism 26 comprises a shaking frame 261, a telescopic spring 262, a rotating shaft 263, a connecting gear 264 and a cam 265, wherein a sliding groove is uniformly arranged in the filtering mechanism 24, the inside of the sliding groove is connected with the shaking frame 261 in a sliding fit manner, the telescopic spring 262 is arranged between the lower end of the shaking frame 261 and the sliding groove, the rotating shaft 263 is arranged above the shaking frame 261, the rotating shaft 263 is arranged on the filtering mechanism 24 through a bearing, the connecting gear 264 is arranged in the middle of the rotating shaft 263, the connecting gear 264 is meshed with the feeding mechanism 23, the cams 265 are symmetrically arranged on the rotating shaft 263, the cam 265 is tightly attached to the shaking frame 261, the shaking frame 261 is in a rectangular structure, through grooves are uniformly arranged on the shaking frame 261, balls are uniformly arranged in the through grooves, and during specific work, when the rotating gear 234 in the feeding mechanism 23 drives the connecting gear 264 to rotate, the connecting gear 264 drives the cam 265 to rotate, the cam 265 may further drive the filter membrane 243 to move up and down by the shaking frame 261, thereby improving the filtering efficiency of the filter membrane 243.
The preparation process of the concrete additive water reducing agent comprises the following steps:
s1, naphthalene conversion: at normal temperature, the naphthalene is solid, and the fixed naphthalene is put into a reaction kettle to be heated and melted;
s2, sulfonation: adding concentrated sulfuric acid into the reaction kettle to react with the naphthalene melted in the step S1 to generate naphthalene sulfonic acid, wherein the naphthalene sulfonic acid comprises alpha-naphthalene sulfonic acid and beta-naphthalene sulfonic acid;
s3, hydrolysis: adding water into the reaction kettle in the step S2 to perform hydrolysis reaction on the alpha-naphthalenesulfonic acid;
s4, condensation: after the hydrolysis reaction in the step S3 is finished, formaldehyde is dripped into the reaction kettle to react with beta-naphthalenesulfonic acid to generate a naphthalene sulfonated formaldehyde condensate;
s5, neutralization: dropwise adding alkali liquor into the reaction kettle after the condensation reaction in the step S4, neutralizing excessive sulfuric acid in the sulfonation reaction, and stopping dropwise adding when the PH reaches 7-9;
s6, filtering: the solution neutralized in step S5 is injected into the sealing frame 3 through a high-pressure pump, the feeding mechanism 23 can uniformly disperse the solution on the filtering mechanism 24, the filtering area of the filtering mechanism 24 is increased, the pressing mechanism 25 can press the end of the filtering film 243 to ensure the sealing performance of the filtering, the shaking mechanism 26 can drive the filtering film 243 to shake up and down, and the filtering efficiency of the filtering film 243 is increased;
s7, drying and collecting: the raw material filtered and collected in step S6 is dried, collected and stored.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a concrete additive water-reducing agent prepares technology, this concrete additive water-reducing agent prepares technology adopts following processing equipment, and this processing equipment includes bottom plate (1), filter equipment (2) and seal frame (3), its characterized in that: the upper end of the bottom plate (1) is provided with a filtering device (2), the upper end of the filtering device (2) is provided with an open slot, a sealing frame (3) is arranged in the open slot, the sealing frame (3) is connected with the filtering device (2) through a screw, and the middle part of the upper end of the sealing frame (3) is provided with a liquid inlet valve; wherein:
the filtering device (2) comprises a filtering box body (21), a baffle plate (22), a feeding mechanism (23), a filtering mechanism (24), a pressing mechanism (25) and a shaking mechanism (26), wherein the filtering box body (21) is installed in the middle of the upper end of the bottom plate (1), the baffle plate (22) is installed at the upper end inside the filtering box body (21), through holes are uniformly formed in the baffle plate (22), the feeding mechanism (23) is installed in the through holes, the filtering mechanism (24) is installed at the lower end inside the filtering box body (21), the pressing mechanism (25) is symmetrically installed inside the filtering mechanism (24), the shaking mechanism (26) is installed in the filtering mechanism (24), the filtering mechanism (24) is located between the pressing mechanisms (25), and the upper end of the shaking mechanism (26) is connected with the feeding mechanism (23);
the filtering mechanism (24) comprises a material placing frame (241), a winding frame (242), filtering films (243), transverse plates (244) and guide rollers (245), the transverse plates (244) are symmetrically arranged in the filtering box body (21), the guide rollers (245) are uniformly arranged between the transverse plates (244), the material placing frame (241) is arranged at the upper end of the left side of the filtering box body (21), the winding frame (242) is arranged at the lower end of the left side of the filtering box body (21), the filtering films (243) are arranged between the winding frame (242) and the material placing frame (241), and the filtering films (243) are distributed in an S shape along the guide rollers (245);
the preparation process of the concrete additive water reducing agent comprises the following steps:
s1, naphthalene conversion: at normal temperature, the naphthalene is solid, and the fixed naphthalene is put into a reaction kettle to be heated and melted;
s2, sulfonation: adding concentrated sulfuric acid into the reaction kettle to react with the naphthalene melted in the step S1 to generate naphthalene sulfonic acid, wherein the naphthalene sulfonic acid comprises alpha-naphthalene sulfonic acid and beta-naphthalene sulfonic acid;
s3, hydrolysis: adding water into the reaction kettle in the step S2 to perform hydrolysis reaction on the alpha-naphthalenesulfonic acid;
s4, condensation: after the hydrolysis reaction in the step S3 is finished, formaldehyde is dripped into the reaction kettle to react with beta-naphthalenesulfonic acid to generate a naphthalene sulfonated formaldehyde condensate;
s5, neutralization: dropwise adding alkali liquor into the reaction kettle after the condensation reaction in the step S4, neutralizing excessive sulfuric acid in the sulfonation reaction, and stopping dropwise adding when the PH reaches 7-9;
s6, filtering: injecting the solution neutralized in the step S5 into the sealing frame (3) through a high-pressure pump, wherein the solution can be uniformly dispersed on the filtering mechanism (24) by the feeding mechanism (23), the filtering area of the filtering mechanism (24) is increased, the end part of the filtering film (243) can be pressed by the pressing mechanism (25), the filtering tightness is ensured, the shaking mechanism (26) can drive the filtering film (243) to shake up and down, and the filtering efficiency of the filtering film (243) is increased;
s7, drying and collecting: the raw material filtered and collected in step S6 is dried, collected and stored.
2. The preparation process of the concrete additive water reducing agent according to claim 1, characterized in that: feeding mechanism (23) including entering liquid frame (231), turbine disc (232), pivot (233) and rotating gear (234), the inside upper end of through-hole install into liquid frame (231), liquid frame (231) are provided with the inlet of slope for inside, pivot (233) are installed through the bearing to the inside lower extreme of through-hole, turbine disc (232) are installed to pivot (233) upper end, rotating gear (234) are installed to pivot (233) lower extreme, rotating gear (234) mesh with rocking mechanism (26).
3. The preparation process of the concrete additive water reducing agent according to claim 1, characterized in that: the pressing mechanism (25) comprises a fixing frame (251), a sliding groove (252), an adjusting rod (253), a sliding block (254) and a pressing plate (255), the fixing frame (251) is installed inside the filtering mechanism (24), the sliding groove (252) is evenly arranged in the middle of the fixing frame (251), grooves are symmetrically formed in the fixing frame (251), the adjusting rod (253) is installed in the grooves through bearings, the sliding block (254) is connected to the adjusting rod (253) in a threaded fit mode, and the pressing plate (255) is installed on the inner side of the sliding block (254).
4. The preparation process of the concrete additive water reducing agent according to claim 1, characterized in that: rocking mechanism (26) including rocking frame (261), expanding spring (262), axis of rotation (263), connecting gear (264) and cam (265), filtering mechanism (24) inside evenly be provided with the sliding tray, the sliding tray is inside to be connected with through sliding fit's mode and rocks frame (261), rock and install expanding spring (262) between frame (261) lower extreme and the sliding tray, it is provided with axis of rotation (263) to rock frame (261) top, axis of rotation (263) pass through the bearing and install on filtering mechanism (24), axis of rotation (263) mid-mounting has connecting gear (264), connecting gear (264) and feed mechanism (23) mesh mutually, cam (265) are installed to the symmetry on axis of rotation (263), cam (265) and rock and move frame (261) and hug closely.
5. The preparation process of the concrete additive water reducing agent according to claim 3, characterized in that: the pressing plate (255) is positioned in the sliding groove (252), and a rubber pad is arranged at the lower end of the pressing plate (255).
6. The preparation process of the concrete additive water reducing agent according to claim 4, characterized in that: the shaking frame (261) is of a rectangular structure, through grooves are uniformly formed in the shaking frame (261), and balls are uniformly arranged in the through grooves.
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| CN114832763A (en) * | 2022-04-20 | 2022-08-02 | 阜阳市金地橡塑股份有限公司 | Raw materials blendor is used in antiager BLE production |
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| CN111559881B (en) | 2021-12-28 |
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