CN112387151A

CN112387151A - Proportioning device for polycarboxylate superplasticizer and preparation method thereof

Info

Publication number: CN112387151A
Application number: CN202011146460.7A
Authority: CN
Inventors: 金利学; 徐琴; 吴寅钰
Original assignee: ZHEJIANG DADONGWU GROUP CONSTRUCTION OF NEW MATERIAL Ltd
Current assignee: ZHEJIANG DADONGWU GROUP CONSTRUCTION OF NEW MATERIAL Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-02-23

Abstract

The utility model provides a proportioning device and preparation method of polycarboxylate water reducing agent, relates to polycarboxylate water reducing agent production field, including compounding bucket, batch pan and finished product portion, the compounding bucket includes bung and bucket body, there are crown plate, drain hole and agitator motor on the bung, agitator motor places in the crown plate, agitator motor's output shaft extends down this internal and the lower extreme of bucket is connected the stirring net, the batch pan ring cover around the crown plate there is the material check of putting of circumference distribution on the batching dish, the compounding bucket with separate through the pull baffle between the finished product portion, the pull baffle is through lieing in the finished product side mouth of the side of finished product portion stretches into in the finished product portion, can promote ratio efficiency, reduce ratio quality and float, stabilize polycarboxylate water reducing agent homogeneity.

Description

Proportioning device for polycarboxylate superplasticizer and preparation method thereof

Technical Field

The invention relates to the field of production of polycarboxylate superplasticizers, in particular to a proportioning device of a polycarboxylate superplasticizer and a preparation method thereof.

Background

The water reducing agent can reduce the mixing water consumption and improve the concrete strength under the condition of unchanged concrete workability and cement consumption; or the admixture can save the cement consumption under the condition of unchanged workability and strength. In the prior art, some specific water reducing agents are often needed in the production of concrete, solid powdery or granular ingredients are firstly dissolved in water to prepare a solution of a single solvent before adding, so that the uniformity of mixing is ensured, but various ingredients are generally needed to be added in the production of concrete, so that different ingredients need to be comprehensively proportioned when the solution of a mixed solvent is prepared from different ingredients. At present, the domestic polycarboxylic acid production process has the defects of complicated production, insecurity, environmental protection, energy saving and the like, the comprehensive proportioning operation for preparing the water reducer is usually that the water reducer is weighed manually firstly, different required ingredients are moved to a stirrer after the weight is weighed and poured into the stirrer, and a certain amount of water is mixed for stirring, so that the operation process is complicated, the proportioning effect is greatly influenced by human factors, and the uniformity is poor; meanwhile, the proportioning mode has low efficiency.

Disclosure of Invention

The invention provides a proportioning device of a polycarboxylate superplasticizer and a preparation method thereof, which can improve proportioning efficiency, reduce proportioning quality fluctuation and stabilize uniformity of the polycarboxylate superplasticizer.

The technical purpose of the invention is realized by the following technical scheme: a proportioning device of a polycarboxylate superplasticizer, which comprises a mixing barrel, a proportioning disk and a finished product part, the mixing barrel comprises a barrel cover and a barrel body, the barrel cover is provided with a ring plate, a material leakage port and a stirring motor, the ring plate is a cylindrical ring surface bulge positioned in the middle of the barrel cover, the material leakage opening is a through hole which is close to the edge of the barrel cover and vertically penetrates through the barrel cover, the stirring motor is arranged in the annular plate, an output shaft of the stirring motor extends into the barrel body downwards and is connected with a stirring net at the lower end, the batching tray is annularly sleeved around the annular plate, the material placing grids are circumferentially distributed on the batching tray and are rectangular through grids which penetrate through the batching tray in the vertical direction, the mixing barrel and the finished product part are separated through a drawing clapboard, and the drawing clapboard extends into the finished product part through a finished product side opening positioned on the side surface of the finished product part.

Preferably, the batching tray is further provided with a push control part for controlling the opening and closing of the material placing lattices.

Preferably, the pushing and controlling part comprises a material supporting plate, a telescopic groove and a leakage extruding plate, the telescopic groove is located at the lower opening of the material placing grid and close to the lower surface of one side of the annular plate, the material supporting plate is a horizontal panel, the material supporting plate is connected in the telescopic groove through a spring, the leakage extruding plate comprises a pushing part and a leakage part, the pushing part is a vertical panel, the pushing part is connected to the outer side surface of the material placing grid through a spring, the leakage part is a hollow plate horizontally extending from the lower edge of the pushing part to the direction of the material supporting plate, and the hollow direction of the leakage part is the vertical direction.

Preferably, the material placing grid is also provided with a side scraping plate for cleaning the ingredients on the surfaces of the material supporting plate and the bushing plate.

Preferably, the side scraping plates are inclined flat plates extending from the lower edge of the material containing grid to the opposite direction from top to bottom.

As preferred, finished product portion includes stoving jar body, material pouring mouth, stoving board, windrow dish and is used for sweeping polycarboxylate water reducing agent and leaves the material portion of sweeping of stoving board, the material pouring mouth set up in the upper surface both sides of stoving jar body, the stoving board is for connecting the horizontal extension board of the inner wall both sides of stoving jar body, windrow dish is used for holding the follow polycarboxylate water reducing agent that drops on the stoving board.

Preferably, the drying tank body is also internally provided with a downward inclined guide plate, and the downward inclined guide plate is an inclined flat plate which extends from the top to the bottom towards the material pouring port from the inner wall of the drying tank body.

Preferably, the sweeping part comprises a sweeping rod, a rack rod groove, a rotating shaft and a squeezing rod rotating plate, the upper end of the rotating shaft penetrates through the middle part of the upper surface of the drying tank body and is connected with a motor, the lower end of the rotating shaft is connected with the middle part of the squeezing rod rotating plate, the rack rod groove comprises a rack rod arc plate, a rack rod flat plate and a transparent groove, the rack rod arc plate is an arc-shaped panel which is downward from the upper surface of an inner cavity of the drying tank body and gradually bends and extends to the opposite direction, the rack rod flat plate is a horizontal panel which is connected with the lower edges of the rack rod arc plates with more two sides, the transparent groove is a straight bar hollow groove which vertically penetrates through the rack rod flat plate, the sweeping rod comprises a groove placing rod, a vertical extending rod and a sweeping brush, the groove placing rod is a horizontal straight rod which is transversely arranged on the surface of the rack rod flat plate, the vertical extending rod penetrates through the transparent groove from the surface of the groove placing rod downwards, and a squeezing rod ring, the extrusion rod ring groove is a circular arc through groove vertically penetrating through the extrusion rod rotating plate, and the vertical extension rod penetrates through the extrusion rod ring groove.

The preparation method of the polycarboxylic acid water reducing agent comprises the following components in parts by weight: 15-25 parts of modified cement, 10-15 parts of gypsum, 5-10 parts of carbon black, 10-20 parts of bentonite, 1-3 parts of silicon dioxide, 10-25 parts of polypropylene fiber, 1-5 parts of high-efficiency water reducing agent, 2-4 parts of calcium lignosulfonate, 0.3-0.7 part of sodium hexadecylsulfonate, 1-9 parts of dispersible latex powder, 0.2-0.6 part of stabilizer, 1-7 parts of rust inhibitor, 0.5-5 parts of waterproof agent, 5-15 parts of acrylic emulsion and 10-25 parts of deionized water.

In conclusion, the invention has the following beneficial effects: the proportioning efficiency is improved, the proportioning quality fluctuation is reduced, and the uniformity of the polycarboxylate superplasticizer is stabilized.

Drawings

FIG. 1 is a schematic view of the overall structure of the proportioning device.

Fig. 2 is a schematic diagram of the separation of the mixing barrel from the batching tray.

FIG. 3 is a schematic cross-sectional view of the proportioning device.

Fig. 4 is a schematic structural view of the push control part.

Fig. 5 is a schematic structural view of the drying tank body.

Fig. 6 is a schematic view of the internal structure of the drying tank body.

Fig. 7 is a schematic view of the material sweeping part.

FIG. 8 is a schematic view of the structure of the slotted rod.

Fig. 9 is a schematic view of the front structure inside the drying tank body.

In the figure: 1. mixing barrel, 2, batching disc, 3, barrel cover, 4, annular plate, 5, material leaking port, 6, material placing grid, 7, drawing clapboard, 8, material supporting plate, 9, extruding and pushing part, 10, material leaking part, 11, side scraping plate, 12, drying tank body, 13, material pouring port, 14, drying plate, 15, downward inclining guiding plate, 16, rotating shaft, 17, extruding rod rotating plate, 18, rack rod flat plate, 19, groove placing rod, 20, vertical extending rod, 21, extruding rod ring groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Embodiment 1, as shown in fig. 1 to 9, a proportioning device for a polycarboxylate superplasticizer comprises a mixing barrel 1, a proportioning disk 2 and a finished product part, wherein the mixing barrel 1 comprises a barrel cover 3 and a barrel body, the barrel cover 3 is provided with a ring plate 4, a material leaking port 5 and a stirring motor, the ring plate 4 is a cylindrical ring surface bulge positioned in the middle of the barrel cover 3, the material leaking port 5 is a through hole which is close to the edge of the barrel cover 3 and vertically penetrates through the barrel cover 3, the stirring motor is arranged in the ring plate 4, an output shaft of the stirring motor extends into the barrel body and is connected with a stirring net at the lower end, the proportioning disk 2 is sleeved around the ring plate 4, there is the material check 6 of putting of circumference distribution on batching dish 2, puts material check 6 for the rectangle that runs through in vertical direction leads to the check, separates through pull baffle 7 between compounding bucket 1 and the finished product portion, and pull baffle 7 stretches into in the finished product portion through the finished product side mouth that is located the side of finished product portion. The material placing grid 6 is positioned at the outermost edge of the batching tray 2. The drawing partition 7 is a flat plate. Put the material check of putting at the batching dish and put the raw materials that need the ratio, it is when the circumferential motion is being made to the crown plate to coil the batching, it can loop through the small opening and get into this internal to put the ratio raw materials in the material check, along with getting into in proper order of batching, agitator motor output shaft end-to-end connection's stirring net can stir the batching in succession, make intensive mixing between the batching, until making the preliminary finished product of polycarboxylate water reducing agent, at this moment, can extract the pull baffle, make the preliminary finished product of polycarboxylate water reducing agent get into the finished product portion of below, the effect of finished product portion mainly is the polycarboxylate water reducing agent that is used for the stoving just made.

The batching tray 2 is also provided with a push control part for controlling the material placing grids 6 to open and close. The pushing control portion comprises a material supporting plate 8, a telescopic groove and a leakage extruding plate, the telescopic groove is located on the lower opening of the material placing grid 6 and is close to the lower surface of one side of the annular plate 4, the material supporting plate 8 is a horizontal panel, the material supporting plate 8 is connected in the telescopic groove through a spring, the leakage extruding plate comprises an extruding portion 9 and a leakage portion 10, the extruding portion 9 is a vertical panel, the extruding portion 9 is connected to the outer side surface of the material placing grid 6 through the spring, the leakage portion 10 is a hollow plate extending horizontally from the lower edge of the extruding portion 9 to the direction of the material supporting plate 8, and the hollow direction of the leakage portion 10 is vertical. The material placing grid prevents the ingredients from contacting, adhering, losing and mixing on the barrel cover through the pushing control part. Through pushing out the portion and carrying out the application of force, promote the flitch that holds in the palm and inwards contract, like this, during solid flitch that holds in the palm gets into the flexible groove, the hourglass material portion of fretwork got into the below of putting the material check, and the batching is from leaking the surface infiltration of material portion and down, gets into in the bucket body. When the force applied to the pushing part is removed, the material leaking part and the material supporting plate return to the original position again.

The material placing grid 6 is also provided with a side scraping plate 11 for cleaning the material supporting plate 8 and the material proportioning on the surface of the bushing plate. The side scrapers 11 are inclined flat plates extending from the lower edge of the material placing grid 6 to the top and bottom. The side scraper blade can scrape off the ingredients on the surfaces of the material supporting plate and the material leaking part which move back and forth.

Finished product portion includes stoving jar body 12, material pouring hole 13, stoving board 14, windrow dish and is used for sweeping away polycarboxylate water reducing agent from the sweeping material portion of stoving board 14, and material pouring hole 13 sets up in the upper surface both sides of stoving jar body 12, and stoving board 14 is the horizontal extension board of connecting the inner wall both sides of stoving jar body 12, and windrow dish is used for holding the polycarboxylate water reducing agent who drops from stoving board 14. The stirring net can push finished product polycarboxylate water reducing agent to 1 edge of compounding bucket at the in-process of stirring, and pull 7 avris of baffle promptly. When the drawing clapboard 7 is drawn outwards, the drawing clapboard can fall into the drying tank body from the material pouring port. Through adding the polycarboxylate water reducing agent finished product that needs to dry from pouring hole 13 in to drying tank body 12, can drop and dry on drying plate 14, simultaneously, sweep the polycarboxylate water reducing agent on drying plate 14 by sweeping the material portion, polycarboxylate water reducing agent drops to below and piles on the charging tray, takes out from the opening of drying tank body 12 side again.

The drying tank body 12 is also internally provided with a downward inclined guide plate 15, and the downward inclined guide plate 15 is an inclined flat plate which extends from the inner wall of the drying tank body 12 to the top to the bottom and is opposite to the pouring port 13. The downward inclined guide plate 15 can guide the polycarboxylate water reducing agent falling from the pouring port 13 to the surface of the drying plate 14.

The material sweeping part comprises a sweeping rod, a rack rod groove, a rotating shaft 16 and a squeezing rod rotating plate 17, the upper end of the rotating shaft 16 penetrates through the middle part of the upper surface of the drying tank body 12 and is connected with a motor, the lower end of the rotating shaft 16 is connected with the middle part of the squeezing rod rotating plate 17, the rack rod groove comprises a rack rod arc plate, a rack rod flat plate 18 and a transparent groove, the rack rod arc plate is an arc-shaped panel which is downward from the upper surface of the inner cavity of the drying tank body 12 and gradually bends and extends to the opposite direction, the rack rod flat plate 18 is a horizontal panel which is connected with the lower edge of the rack rod arc plate with more two sides, the transparent groove is a straight strip empty groove which vertically penetrates through the rack rod flat plate 18, the sweeping rod comprises a groove placing rod 19, a vertical extending rod 20 and a sweeping brush, the groove placing rod 19 is a horizontal rod which is transversely arranged on the surface of the rack rod flat plate 18, the vertical extending rod 20 is a straight rod which downwards penetrates through the transparent groove from the surface of the groove placing rod 19, the vertical extension rod 20 passes through the extrusion ring groove 21. The sweeping rod is erected on the rack rod flat plate 18 through the groove placing rod 19, the vertical extending rod 20 penetrates through the rod squeezing ring groove 21 and extends to the surface of the drying plate 14, the sweeping brush is in contact with the drying plate 14, in this way, the rod squeezing rotating plate 17 is driven by the reciprocating rotation of the rotating shaft 16, the vertical extending rod 20 can be extruded through the rod squeezing ring groove 21, along with the extrusion of the rod squeezing ring groove 21, the sweeping rod can only horizontally reciprocate in the rack rod groove, and therefore, the horizontal moving back and forth of the sweeping rod is achieved along with the reciprocating circular rotation of the rotating shaft 16, the sweeping brush can reciprocally sweep the polycarboxylate water reducer on the drying plate 14 back and forth, and the polycarboxylate water reducer is swept down.

Claims

1. The proportioning device of the polycarboxylate superplasticizer is characterized by comprising a mixing barrel (1), a proportioning disc (2) and a finished product part, wherein the mixing barrel (1) comprises a barrel cover (3) and a barrel body, the barrel cover (3) is provided with a ring plate (4), a material leaking port (5) and a stirring motor, the ring plate (4) is a cylindrical ring surface bulge positioned in the middle of the barrel cover (3), the material leaking port (5) is a through hole which is close to the edge of the barrel cover (3) and vertically penetrates through the barrel cover (3), the stirring motor is placed in the ring plate (4), an output shaft of the stirring motor extends into the barrel body and is connected with a stirring net at the lower end, the proportioning disc (2) is sleeved on the periphery of the ring plate (4), material placing grids (6) which are circumferentially distributed are arranged on the proportioning disc (2), and the material placing grids (6) are rectangular through grids which penetrate in the vertical direction, the mixing barrel (1) and the finished product part are separated by a drawing clapboard (7), and the drawing clapboard (7) extends into the finished product part through a finished product side opening positioned on the side surface of the finished product part.

2. The proportioning device of a polycarboxylate water reducing agent according to claim 1, characterized in that the proportioning tray (2) is further provided with a pushing control part for controlling the opening and closing of the material placing grids (6).

3. The proportioning device of a polycarboxylate water reducing agent according to claim 2, characterized in that the pushing and controlling part comprises a material supporting plate (8), a telescopic groove and a leakage extruding plate, the telescopic groove is located at the lower surface of one side of the material placing grid (6) close to the annular plate (4), the material supporting plate (8) is a horizontal panel, the material supporting plate (8) is connected in the telescopic groove through a spring, the leakage extruding plate comprises a pushing part (9) and a leakage part (10), the pushing part (9) is a vertical panel, the pushing part (9) is connected to the outer side surface of the material placing grid (6) through a spring, the leakage part (10) is a hollowed-out plate horizontally extending from the lower edge of the pushing part (9) to the direction of the material supporting plate (8), and the hollowed-out direction of the leakage part (10) is a vertical direction.

4. The proportioning device of a polycarboxylate water reducer according to claim 3, characterized in that a side scraper (11) for cleaning the material supporting plate (8) and the material mixing on the surface of the bushing plate is arranged on the material placing grid (6).

5. The proportioning device of a polycarboxylate water reducing agent of claim 4, characterized in that, the side scraper (11) is an inclined flat plate extending from the lower edge of the material placing grid (6) to the top down.

6. The proportioning device of polycarboxylate water reducing agent of claim 5, characterized in that, finished product portion includes stoving jar body (12), pouring hole (13), stoving board (14), windrow dish and is used for sweeping polycarboxylate water reducing agent away the sweep portion of stoving board (14), pouring hole (13) set up in the upper surface both sides of stoving jar body (12), stoving board (14) are for connecting the horizontal extension board of the inner wall both sides of stoving jar body (12), windrow dish is used for holding the polycarboxylate water reducing agent that drops from on stoving board (14).

7. The proportioning device of a polycarboxylate water reducing agent of claim 6, characterized in that, the stoving jar body (12) is equipped with down guide inclined plate (15) in addition, down guide inclined plate (15) is from the inner wall of stoving jar body (12) near pouring opening (13) department slope flat board that extends in opposite directions from top to bottom.

8. The proportioning device of a polycarboxylate water reducer according to claim 7, characterized in that the sweeping part comprises a sweeping rod, a rack rod groove, a rotating shaft (16) and a rod-squeezing rotating plate (17), the upper end of the rotating shaft (16) passes through the middle part of the upper surface of the drying tank body (12) and is connected with a motor, the lower end of the rotating shaft (16) is connected with the middle part of the rod-squeezing rotating plate (17), the rack rod groove comprises a rack rod arc plate, a rack rod flat plate (18) and a through groove, the rack rod arc plate is an arc-shaped panel which is downward from the upper surface of the inner cavity of the drying tank body (12) and gradually bends and extends to the opposite direction, the rack rod flat plate (18) is a horizontal panel which is connected with the lower edges of the rack rod arc plates with more number of two sides, the through groove is a straight strip empty groove which vertically penetrates through the rack rod flat plate (18), the sweeping rod comprises a groove-placing rod (19), a vertical extending rod (20) and, the groove placing rod (19) is a horizontal straight rod which is transversely arranged on the surface of the frame rod flat plate (18), the vertical extending rod (20) is a straight rod which downwards penetrates through the surface of the groove placing rod (19) and extends through the straight groove, a rod extruding ring groove (21) is formed in the rod extruding rotating plate (17), the rod extruding ring groove (21) is a circular arc-shaped through groove which vertically penetrates through the rod extruding rotating plate (17), and the vertical extending rod (20) penetrates through the rod extruding ring groove (21).

9. A preparation method of a polycarboxylic acid water reducing agent is characterized by adding raw materials of a macromonomer, namely fatty alcohol-polyoxyethylene ether, acrylic acid, hydrogen peroxide and water into a reaction kettle, reacting for 1.5-2.5 hours under the catalytic action of a catalyst, and neutralizing with an alkaline solution until the pH value is 6-8 to prepare a polycarboxylic acid solution; 1500-2000 parts of fatty alcohol-polyoxyethylene ether, 180-220 parts of acrylic acid, 20-35 parts of hydrogen peroxide and 70-90 parts of a catalyst by weight; the catalyst is prepared by mixing the following components, by weight, 20-50 parts of vitamin C, 15-25 parts of germanium nitrate and 15-25 parts of ethyl aminopropionate.