CN111331730A - Preparation device and preparation method of high-strength and compressive-property concrete - Google Patents
Preparation device and preparation method of high-strength and compressive-property concrete Download PDFInfo
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- CN111331730A CN111331730A CN202010133337.5A CN202010133337A CN111331730A CN 111331730 A CN111331730 A CN 111331730A CN 202010133337 A CN202010133337 A CN 202010133337A CN 111331730 A CN111331730 A CN 111331730A
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- concrete
- reducing agent
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- stirring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
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- 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
Abstract
The invention relates to preparation of a concrete water reducing agent, and discloses a device for high-strength concrete with compressive property and a preparation method thereof. According to the invention, through the design of the concrete water reducing agent preparation device, the stability in the water reducing agent reaction kettle is adjusted through the interaction of the cooling water pipe and the heating water pipe, the temperature is adjusted gently and slowly, the influence on the surface activity of the water reducing agent is reduced to the greatest extent, and the use effect of the water reducing agent is improved.
Description
Technical Field
The invention relates to concrete preparation, in particular to a preparation device and a preparation method of high-strength and compressive-property concrete.
Background
As a building material, the concrete has the advantages of simple construction, high strength, good stability, good durability, low maintenance cost and the like, and is widely applied to the field of buildings. In recent years, with the great investment of the country in construction and the increasing requirements on the quality of construction projects, higher requirements are made on the strength and the compressive property of concrete. Therefore, the research and development of concrete with high strength and pressure resistance to meet the requirement of high-quality construction engineering becomes a technical problem to be solved urgently in the field.
In order to meet various performances of concrete, a water reducing agent is generally required to be added into the concrete, the compressive property of the concrete can be effectively improved by adding a proper water reducing agent into the concrete, and the using effect of the water reducing agent can play a key role in the compressive property of the concrete, so that the development of an effective water reducing agent is a breakthrough point for breaking through the concrete with high-strength compressive property so as to meet the requirements of high-quality construction engineering.
Disclosure of Invention
The invention provides a preparation device and a preparation method of high-strength and compression-resistant concrete, aiming at the problems in the concrete preparation process in the prior art.
In order to solve the technical problem, the invention is solved by the following technical scheme:
a preparation device of high-strength compression-resistant concrete comprises a concrete mixing device, and is characterized in that the concrete mixing device comprises an outer shell, a funnel-shaped feed hopper is arranged at the upper end of the outer shell, a mixing cavity is formed inside the outer shell, a stirring device is arranged in the mixing cavity, a concrete discharging pipe is arranged on the side wall of the outer shell, and the preparation device also comprises a water reducing agent storage box connected with the concrete mixing device, a water reducing agent reaction kettle is connected on the water reducing agent storage box, the water reducing agent reaction kettle comprises a cylindrical reaction shell and sealing covers respectively fixed at the upper end and the lower end of the reaction shell, a feed inlet and a discharge outlet are arranged on the reaction shell, an upper temperature adjusting device and a lower temperature adjusting device with the same structure are arranged in the reaction shell, the temperature adjusting device comprises a water inlet cavity and a water outlet cavity which are arranged in the reaction, the reaction device is characterized by further comprising a water pipe which is arranged in the reaction shell, one end of the water pipe is communicated with the water inlet cavity, the other end of the water pipe is communicated with the water outlet cavity, the water pipe of the temperature adjusting device positioned on the upper portion of the reaction shell is a cold water pipe communicated with cold water, and the water pipe of the temperature adjusting device positioned on the lower portion of the reaction shell is a hot water pipe communicated with hot water. The adjustment of the temperature in the water reducing agent reaction kettle is realized by respectively passing hot water and cold water through the upper water pipe and the lower water pipe, the adjustment mode is mild, and the influence on the surface activity of the water reducing agent can be reduced as much as possible.
Preferably, the stirring device comprises a driving motor fixed outside the shell and a stirring shaft connected with a motor shaft of the driving motor, wherein a stirring paddle is arranged on the stirring shaft, the stirring paddle is formed by bending two ends of a rectangular plate towards opposite plate surfaces respectively, a shaft hole for the stirring shaft to pass through is formed in the side surface of the rectangular plate, the shaft hole is axially vertical to the plate surfaces, and the shaft hole is located at 1/3 in the length direction of the rectangular plate. The structural style of stirring rake makes its stirring in-process can be with being located the more abundant area of compounding of shell body lower part to upper portion, and the non-stop is in the shell body lower part all the time for the stirring is more even.
Preferably, the stirring paddles comprise a first stirring paddle and a second stirring paddle which are identical in structure, the first stirring paddle and the second stirring paddle are sequentially arranged in a staggered mode along the axial direction of the stirring shaft, and the end portion, close to the shaft hole, of the first stirring paddle and the end portion, far away from the shaft hole, of the second stirring paddle are located on the same side of the stirring shaft. The arrangement form of stirring rake can make the compounding in the shell no matter be close to the (mixing) shaft or keep away from the part homoenergetic of (mixing) shaft and can be arrived by fine stirring, realizes the thick stirring on a large scale and the thin stirring of minim to the concrete material, can make the mixture between concrete material and the water-reducing agent more even.
Preferably, the upper part of the inner wall of the reaction shell is provided with two parallel circular partition plates, a water outlet cavity is formed between the two circular partition plates, a water inlet cavity is formed between the circular partition plate positioned above and the upper sealing cover, the water inlet is positioned on the sealing cover at the upper end part of the reaction shell, and the water outlet is positioned on the side wall of the reaction shell between the upper circular partition plate and the lower circular partition plate.
Preferably, the temperature adjusting device further comprises a rotating shaft penetrating through the centers of the two circular partition plates, one end of the rotating shaft penetrates through the sealing cover to extend out of the water reducing agent reaction kettle and is connected with a driving motor, the other end of the rotating shaft is located in the middle of the reaction shell and is provided with a water guide plate, a water inlet guide cavity and a water outlet guide cavity which are arranged up and down are arranged in the water guide plate, two ends of the water pipe are respectively communicated with the water inlet guide cavity and the water outlet guide cavity, a water inlet diversion runner and a water outlet diversion runner which are arranged along the axial direction of the rotating shaft are arranged on the outer wall of the rotating shaft, two ends of the water inlet diversion runner are respectively communicated with the water inlet cavity and. The diversion runner sets up in the axis of rotation, need not to set up unnecessary pipeline on the one hand, simplifies water-reducing agent reation kettle inner structure, and the diversion runner sets up in the axis of rotation simultaneously, and it is sharp runner, can reduce energy loss as far as, makes its inside hydroenergy carry out temperature regulation to the water-reducing agent raw materials more abundant.
Preferably, the water guide plate is a circular plate, the water pipes are a plurality of U-shaped pipes which are arranged in an annular array around the axis of the water guide plate, and the length direction of the U-shaped pipes is in the vertical direction; the U-shaped pipe of the temperature adjusting device positioned at the lower part of the reaction shell is inserted into the ring where the U-shaped pipe of the temperature adjusting device positioned at the upper part of the reaction shell is positioned.
Preferably, the U-shaped tubes of the temperature adjusting device located at the lower portion of the reaction shell correspond to the U-shaped tubes of the temperature adjusting device located at the upper portion of the reaction shell one by one, and the width directions of the corresponding U-shaped tubes are perpendicular to each other. U-shaped pipe intercrossing among two upper and lower temperature regulation apparatus, and the form one-to-one that just arranges sets up and mutually perpendicular, can make the water pipe of upper and lower both sides mutually support, interact at the rotation stirring in-process, form the vortex formula and stir, can furthest heighten stirring homogeneity and the stirring sufficiency to the raw materials in the reaction housing.
Preferably, a rectangular plate-shaped fin plate arranged along the length direction of the U-shaped tube is arranged between two vertical tubes of the U-shaped tube, and the thickness of the fin plate is equal to the outer diameter of the U-shaped tube. The fin board can make the stirring effect of U-shaped pipe better, can also improve the temperature regulation scope of water pipe simultaneously, then improves the temperature regulation effect.
Preferably, a plurality of water through holes are uniformly arranged on the fin plate along the length direction, the length direction of each water through hole is arranged along the width direction of the fin plate, and two ends of each water through hole are respectively connected with the two vertical pipes of the U-shaped pipe. Be equipped with the limbers with two vertical pipe intercommunications of U-shaped pipe on the fin board for the fin board directly is as temperature regulation board, reduces the energy loss in the temperature transfer process, and the at utmost carries out effective temperature regulation.
A method for preparing high-strength compression-resistant concrete by using the device for preparing high-strength compression-resistant concrete as claimed in claim, which comprises the following steps:
step one, preparing a concrete water reducing agent, and storing the water reducing agent into a water reducing agent storage box;
secondly, placing the concrete material into a concrete mixing device through a concrete feed hopper;
pumping the water reducing agent in the water reducing agent storage tank into a concrete mixing device;
and step four, fully stirring the materials and the water reducing agent in the concrete mixing device through a stirring device to obtain the concrete slurry.
Preferably, the step one specifically comprises the following steps:
step A, placing industrial waste liquid containing 20% Na2SO3 and sodium metabisulfite into a water reducing agent reaction kettle, and mixing and stirring for 30min to obtain a material A;
and step B, adding a methyl allyl polyoxyethylene ether dissolving solution into the material A, and passing the solution. . . Stirring and mixing the mixture at the temperature of 70 ℃;
c, dropwise adding acetone into the water reducing agent reaction kettle, mixing, and reacting for 30min under the condition of heat preservation;
step D, heating the water reducing agent reaction kettle to 50-55 ℃, dropwise adding formaldehyde for reacting for 50min, and completing dropwise adding within 1 h;
step E, dropwise adding a hydrogen peroxide solution into the water reducing agent reaction kettle, and keeping the temperature in the water reducing agent reaction kettle at 50-55 ℃ in the dropwise adding process after dropwise adding is finished for 1-2 hours;
step F, heating the water reducing agent in the reaction kettle to 80 ℃, dropwise adding an acrylic acid solution, and finishing dropwise adding within 1.5-2 h;
step G, heating the water reducing agent reaction kettle to 100-120 ℃, and then dropwise adding formaldehyde again, wherein the dropwise adding time is controlled for 2-3 h;
h, dropwise adding a thioglycollic acid solution, keeping the temperature at 60 ℃ for reaction for 3 hours after dropwise adding is finished within 3-3.5 hours;
and step I, after the heat preservation reaction is finished, cooling to 40 ℃ to obtain the environment-friendly composite concrete water reducer.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:
according to the invention, the water reducing agent with better performance is added in the concrete preparation process, so that the compression resistance of the concrete can be effectively improved.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of the concrete mixing apparatus of fig. 1.
Fig. 3 is a schematic structural view of the paddle of fig. 2.
FIG. 4 is a schematic structural diagram of the water reducing agent reaction kettle in FIG. 1.
Fig. 5 is a cross-sectional view of fig. 4.
Fig. 6 is a schematic view of a connection structure of the rotating shaft and the water pipe in fig. 5.
Fig. 7 is a schematic structural view of the circular partition in fig. 5.
Fig. 8 is a schematic structural view of the rotating shaft of fig. 6.
Fig. 9 is another perspective view of the rotation shaft in fig. 6.
Fig. 10 is a partial structural view of the water guide panel of fig. 5 after being cut.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-water reducing agent reaction kettle, 101-reaction shell, 102-sealing cover, 103-feeding inlet, 104-discharging outlet, 105-water inlet cavity, 106-water outlet cavity, 107-water inlet, 108-water outlet, 109-cold water pipe, 110-hot water pipe, 111-circular clapboard, 112-annular groove, 113-annular bulge, 114-rotating shaft, 115-water guide plate, 116-water inlet cavity, 117-water outlet cavity, 118-water inlet and water outlet runner, 119-water outlet and water outlet runner, 120-rotating shaft hole, 121-bearing, 122-fin plate, 123-main shaft section, 124-connecting shaft section, 125-upper end plate, 126-lower end plate, 127-annular side plate, 128-separating plate, 129-first section, 130-second section, 131-first water through hole, 132-second water through hole, 2-concrete mixing device, 201-outer shell, 202-feeding hopper, 203-mixing cavity, 204-concrete discharging pipe, 205-water reducing agent storage box, 206-stirring device, 207-driving motor, 208-stirring shaft, 209-stirring paddle and 210-shaft hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The utility model provides a preparation facilities of high strength compressive property concrete, as shown in fig. 1-fig. 3, it includes concrete compounding device 2, concrete compounding device 2 includes shell body 201, shell body 201 upper end is equipped with and is hopper-shaped's feeder hopper 202, the inside mixing chamber 203 that forms of shell body 201, be equipped with agitating unit 206 in the mixing chamber 203, be equipped with concrete discharging pipe 204 on the lateral wall of shell body 201, still include the water-reducing agent storage box 205 of being connected with concrete compounding device 2, be connected with water-reducing agent reation kettle on the water-reducing agent storage box 205.
The stirring device 206 comprises a driving motor 207 fixed outside the housing and a stirring shaft 208 connected with a motor shaft of the driving motor 207, wherein the stirring shaft 208 is provided with a stirring paddle 209, the stirring paddle 209 is formed by bending two ends of a rectangular plate towards opposite plate directions, the side surface of the rectangular plate is provided with a shaft hole 210 which is axially vertical to the plate surface and is used for the stirring shaft 208 to pass through, and the shaft hole 210 is positioned at 1/3 in the length direction of the rectangular plate. The structural style of stirring rake 209 makes its stirring in-process can be with being located the compounding of shell body 201 lower part more abundant taking to upper portion, and not stop all the time in shell body 201 lower part for the stirring is more even.
In addition, the stirring paddles 209 comprise a first stirring paddle 209 and a second stirring paddle 209 with the same structure, the first stirring paddle 209 and the second stirring paddle 209 are sequentially arranged in a staggered manner along the axial direction of the stirring shaft 208, and the end part of the first stirring paddle 209 close to the shaft hole 210 and the end part of the second stirring paddle 209 far away from the shaft hole 210 are located on the same side of the stirring shaft 208. The arrangement form of the stirring paddle 209 can enable the mixed material in the outer shell 201 to be well stirred in the part close to the stirring shaft 208 or far away from the stirring shaft 208, so that the large-range coarse stirring and the small-range fine stirring of the concrete material are realized, and the concrete material and the mixture between the material and the water reducing agent are more uniform.
As shown in fig. 4-10, in this embodiment, the water reducing agent reaction kettle 1 includes a cylindrical reaction shell 101 and covers 102 respectively fixed to upper and lower ends of the reaction shell 101, in this embodiment, both ends of the reaction shell 101 are provided with flanges, the flanges are provided with bolt holes uniformly arranged, the covers 102 are provided with bolt holes corresponding to the flanges, the covers 102 are fixed to ends of the reaction shell 101 by means of bolts and nuts, that is, the covers 102 at the upper and lower ends of the reaction shell 101 are connected to the reaction shell 101 by means of flanges, and a rubber gasket for passing bolts through the holes is compressed between the connecting surfaces of the flanges and the covers 102.
The reaction shell 101 is provided with a feeding hole 103 and a discharging hole 104, in the embodiment, the reaction shell 101 is formed by combining two half cylinders, the two half cylinders are connected by welding, and the welding seal between the two half cylinders is ensured by a welding seam; the form of designing into two half barrels can be convenient for the installation of each inside spare part of whole water-reducing agent reation kettle 1, can assemble each inside part of reaction housing 101 on one of them half barrel earlier during the installation, then assembles another half barrel and accomplishes the equipment. The feed inlet 103 and the discharge outlet 104 are respectively arranged on the two half cylinders, so that the water reducing agent raw material can have a longer movement track in the reaction shell 101, and the water reducing agent raw material can fully react.
Two sets of temperature regulation devices with the same structure up and down are arranged in the reaction shell 101, each temperature regulation device comprises a water inlet cavity 105 and a water outlet cavity 106 which are arranged in the reaction shell 101, a water inlet 107 and a water outlet 108 which are communicated with the outside of the water reducing agent reaction kettle 1 are respectively arranged on the water inlet cavity 105 and the water outlet cavity 106, the temperature regulation device further comprises a water pipe which is arranged in the reaction shell 101, one end of the water pipe is communicated with the water inlet cavity 105, the other end of the water pipe is communicated with the water outlet cavity 106, the water pipe of the temperature regulation device positioned at the upper part of the reaction shell 101 is a cold water pipe 109 for leading cold water, and the water pipe of the. The hot water and the cold water are respectively led through the upper water pipe and the lower water pipe to realize the adjustment of the temperature in the water reducing agent reaction kettle 1, the adjusting mode is mild, and the influence on the surface activity of the water reducing agent can be reduced as much as possible.
In this embodiment, two parallel circular partition plates 111 are disposed on the upper portion of the inner wall of the reaction housing 101, a water outlet chamber 106 is formed between the two circular partition plates 111, a water inlet chamber 105 is formed between the upper circular partition plate 111 and the upper cover 102, the water inlet 107 is disposed on the cover 102 at the upper end of the reaction housing 101, and the water outlet 108 is disposed on the sidewall of the reaction housing 101 between the upper and lower circular partition plates 111.
Wherein circular baffle 111 is connected through the mode of draw-in groove joint with reaction casing 101 inner wall specifically, and the upper portion of reaction casing 101 inner wall is equipped with two annular grooves 112 that are parallel to each other promptly, and the card is equipped with circular baffle 111 on the annular groove 112, is equipped with on the lateral wall of circular baffle 111 to block in the annular groove 112 and with annular groove 112 interference fit's annular arch 113. Be equipped with sealed the pad between annular groove 112 and the annular protrusion 113, this kind of mode can guarantee the stable connection of circular baffle 111, and the sealed setting of filling up of being convenient for simultaneously guarantees the leakproofness of junction between the two, guarantees the leakproofness of intake antrum 105 and play water cavity 106 then.
In this embodiment, the temperature adjustment device further includes a rotation shaft 114 penetrating through the centers of the two circular partition plates 111, one end of the rotation shaft 114 penetrates through the sealing cover 102 and extends out of the water reducing agent reaction kettle 1 and is connected with a motor, the other end of the rotation shaft is located in the middle of the reaction shell 101 and is provided with a water guide plate 115, a water inlet guide cavity 116 and a water outlet guide cavity 117 are arranged in the water guide plate 115 and are arranged up and down, two ends of the water pipe are respectively communicated with the water inlet guide cavity 116 and the water outlet guide cavity 117, a water inlet flow channel 118 and a water outlet flow channel 119 are arranged on the outer wall of the rotation shaft 114 along the axial direction of the rotation shaft 114, two ends of the water inlet flow channel 118 are respectively communicated with the water inlet cavity 105 and the water inlet.
Wherein, the pivot hole 120 has all been seted up at the middle part of closing cap 102 and circular baffle 111, is equipped with bearing 121 in the pivot hole 120, and the axis of rotation 114 rotates through bearing 121 to be connected on pivot hole 120, and the upper and lower both ends that just are located bearing 121 in the pivot hole 120 all are equipped with the sealed pad that dams pivot hole 120 for form rotary seal between main and closing cap 102 of rotating and the circular baffle 111.
The rotating shaft 114 comprises a main shaft section 123 and a connecting shaft section 124 connected to the end of the main shaft section 123, the connecting shaft section 124 is connected with a water guide plate 115, the diameter of the connecting shaft section 124 is smaller than that of the main shaft section 123 and is a two-section stepped shaft, a cavity is formed inside the water guide plate 115 and is jointly constructed by an upper end plate 125, a lower end plate 126 and an annular side plate 127, a partition plate 128 parallel to the upper end plate 125 and the lower end plate 126 is arranged in the cavity, the cavity is divided into a water inlet cavity 116 and a water outlet cavity 117 by the partition plate 128, the upper end plate 125 is arranged at the joint of the main shaft section 123 and the connecting shaft section 124, the partition plate 128 is arranged at the step on the connecting shaft section 124, and the lower end plate 126 is arranged at the end of; the water inlet and diversion flow channel 118 is arranged on the main shaft section 123 and extends to the joint of the main shaft section 123 and the connecting shaft section 124, and the upper end plate 125 is provided with a first water through hole 131 communicated with the water inlet and diversion flow channel 118; the water outlet flow passage 119 comprises a first section 129 arranged on the main shaft section 123 and a second section 130 connected with the first section 129 and arranged on the connecting shaft section 124, wherein the end of the second section 130 extends to a step on the connecting shaft section 124, and a second water passing hole 132 communicated with the second section 130 is arranged on the partition plate 128.
For the convenience of processing in this embodiment, will advance diversion runner 118 and go out diversion runner 119 and all design the flute profile that has the ladder face, then cover through long banding arc apron and close, be connected through waterproof glue between apron and the ladder face, realize sealed between arc apron and the recess.
Wherein, realize the water pipe and intake antrum 105 and go out being connected of water cavity 106 through set up the diversion runner on axis of rotation 114, can enough guarantee the rotation of axis of rotation 114, then make the rotation of water pipe in reaction casing 101, make its water-reducing agent raw materials that contact in reaction casing 101 on a wider scale, then more even carry out temperature regulation to raw materials in the reaction casing 101, do not influence the business turn over water of water pipe simultaneously, make the non-same bite in exit of water pipe, then can make the water in the water pipe form circulating flow water, guarantee temperature in the water pipe, avoid making the temperature in the water pipe rise or descend because of the heat release of water-reducing agent raw materials reaction or heat absorption, and the regulation of temperature in to reaction casing 101 is finally influenced. Can also take away the reaction heat in water-reducing agent reation kettle 1 through this kind of design in this embodiment, carry out energy recuperation, cyclic utilization.
In the embodiment, the water deflector 115 is a circular plate, the water pipes are a plurality of U-shaped pipes which are arranged in an annular array around the axis of the water deflector 115, and the length direction of the U-shaped pipes is vertical; the U-shaped tube of the temperature adjusting means located at the lower portion of the reaction housing 101 is inserted into the ring shape in which the U-shaped tube of the temperature adjusting means located at the upper portion of the reaction housing 101 is located.
The U-shaped tubes of the temperature adjusting device positioned at the lower part of the reaction shell 101 correspond to the U-shaped tubes of the temperature adjusting device positioned at the upper part of the reaction shell 101 one by one, and the width directions of the corresponding U-shaped tubes are mutually vertical.
In this embodiment, a rectangular plate-shaped fin plate 122 is disposed between two vertical tubes of the U-shaped tube along the length direction of the U-shaped tube, and the thickness of the fin plate 122 is equal to the outer diameter of the U-shaped tube. In addition, a plurality of water through holes are uniformly arranged on the fin plate 122 along the length direction, the length direction of the water through holes is arranged along the width direction of the fin plate 122, and two ends of the water through holes are respectively connected with two vertical pipes of the U-shaped pipe.
The fin can play the effect of leading the warm board on the one hand for the water pipe contacts wider water-reducing agent raw materials, and the higher efficiency carries out temperature regulation, and on the other hand it can also make the U-shaped pipe more abundant to the stirring of water-reducing agent raw materials in water-reducing agent reation kettle 1, and is more even. Be equipped with the limbers with two vertical pipe intercommunications of U-shaped pipe on fin board 122 for fin board 122 directly is as temperature regulation board, reduces the energy loss in the temperature transmission process, and the at utmost carries out effective temperature regulation.
Be equipped with temperature sensor in water-reducing agent reation kettle in this embodiment, detect the temperature in the water-reducing agent reation kettle through temperature sensor, then control the temperature of the water circulation speed in cold water pipe and the hot-water line and the water that lets in.
Example 2
A method for preparing high-strength compression-resistant concrete, which is prepared by using the device for preparing high-strength compression-resistant concrete in example 1, and which comprises the following steps:
step one, preparing a concrete water reducing agent, and storing the water reducing agent into a water reducing agent storage box 205;
secondly, placing the concrete material into the concrete mixing device 2 through a concrete feed hopper 202;
pumping the water reducing agent in the water reducing agent storage tank 205 into the concrete mixing device 2;
and step four, fully stirring the materials and the water reducing agent in the concrete mixing device 2 through the stirring device 206 to obtain the concrete slurry.
The first step in this embodiment specifically includes the following steps:
step A, placing industrial waste liquid containing 20% Na2SO3 and sodium metabisulfite into a water reducing agent reaction kettle 1, and mixing and stirring for 30min to obtain a material A; wherein the mass percent of the industrial waste liquid is 36 percent, and the mass percent of the sodium pyrosulfite is 0.5 percent;
b, adding a methyl allyl polyoxyethylene ether dissolving solution into the material A, and stirring and mixing the mixture at the temperature of 70 ℃ through a temperature adjusting device; wherein the mass percent of the methyl allyl polyoxyethylene ether solution is 28 percent;
c, dropwise adding acetone into the water reducing agent reaction kettle 1, mixing, preserving heat and reacting for 30 min; the mass percent of the acetone is 5 percent,
step D, heating the water reducing agent reaction kettle 1 to 50-55 ℃, dropwise adding formaldehyde for reacting for 50min, and completing dropwise adding within 1 h; the mass percentage of formaldehyde in the step is 4 percent,
step E, dropwise adding a hydrogen peroxide solution into the water reducing agent reaction kettle 1, and keeping the temperature in the water reducing agent reaction kettle 1 at 50-55 ℃ in the dropwise adding process after dropwise adding is finished for 1-2 hours; the mass percent of the hydrogen peroxide is 4 percent,
step F, heating the water reducing agent reaction kettle 1 to 80 ℃, dropwise adding an acrylic acid solution, and finishing dropwise adding within 1.5-2 h; the mass percent of the acrylic acid is 6 percent;
step G, heating the water reducing agent reaction kettle 1 to 100-120 ℃, and then dropwise adding formaldehyde again, wherein the dropwise adding time is controlled to be 2-3 h; in the step, the mass percent of formaldehyde is 8%;
h, dropwise adding a thioglycollic acid solution, keeping the temperature at 60 ℃ for reaction for 3 hours after dropwise adding is finished within 3-3.5 hours; the mass percent of the thioglycolic acid solution is 5 percent;
and step I, after the heat preservation reaction is finished, cooling to 40 ℃ to obtain the environment-friendly composite concrete water reducer. In addition, deionized water is also added into the water reducing agent.
In the embodiment, the industrial waste liquid containing 20% of Na2SO3 is selected from industrial waste liquids generated in the production of 2-naphthol and p-methylphenol, the industrial waste liquid generated in the production of 2-naphthol and p-methylphenol is reacted with sodium pyrosulfite and is compounded with the methyl allyl polyoxyethylene ether dissolving liquid, on one hand, the high-toxicity waste water is treated by the method, the zero emission of the waste water generated in the production of 2-naphthol and methyl phenol is achieved, the environment-friendly effect is achieved, meanwhile, the quality and the performance of the concrete water reducer can be improved by compounding with the methyl allyl polyoxyethylene ether dissolving liquid, and the using effect of the water reducer is enhanced.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a preparation facilities of high strength compressive property concrete, it includes concrete compounding device (2), a serial communication port, concrete compounding device (2) includes shell body (201), shell body (201) upper end is equipped with hopper-shaped (202), shell body (201) inside forms mixing chamber (203), be equipped with agitating unit (206) in mixing chamber (203), be equipped with concrete discharging pipe (204) on the lateral wall of shell body (201), still include water-reducing agent storage box (205) of being connected with concrete compounding device (2), be connected with water-reducing agent reation kettle (1) on water-reducing agent storage box (205), water-reducing agent reation kettle (1) are including being cylindric reaction housing (101) and closing cap (102) of fixing respectively at reaction housing (101) upper and lower both ends, be equipped with feed inlet (103) and discharge gate (104) on reaction housing (101), two sets of temperature regulation apparatus that the structure is the same about being equipped with in reaction casing (101), temperature regulation apparatus is including setting up intake antrum (105) and play water cavity (106) in reaction casing (101), be equipped with water inlet (107) and delivery port (108) with water-reducing agent reation kettle (1) outside intercommunication on intake antrum (105) and play water cavity (106) respectively, still including setting up in reaction casing (101) and one end and intake antrum (105) intercommunication, the water pipe of the other end and play water cavity (106) intercommunication, the water pipe that is located the temperature regulation apparatus on reaction casing (101) upper portion is cold water pipe (109) for leading to cold water, the water pipe that is located the temperature regulation apparatus of reaction casing (101) lower part is hot water pipe (110) for leading to hot water.
2. The apparatus for preparing concrete with high strength and compressive property as claimed in claim 1, wherein: agitating unit (206) is equipped with stirring rake (209) including fixing at the outside driving motor (207) of shell body (201), with (208) of the motor shaft of driving motor (207) on (208), stirring rake (209) are formed by the opposite face direction bending of cuboid board both ends orientation respectively, the side of cuboid board is equipped with shaft hole (210) that supply (208) of axial perpendicular to face passed shaft hole (210), and shaft hole (210) are located cuboid board length direction's 1/3 department.
3. The apparatus for preparing concrete with high strength and compressive property as claimed in claim 2, wherein: the stirring paddle (209) comprises a first stirring paddle (209) and a second stirring paddle (209) which are the same in structure, the first stirring paddle (209) and the second stirring paddle (209) are sequentially arranged in a staggered mode along the axial direction of the stirring shaft (208), and the end portion, close to the shaft hole (210), of the first stirring paddle (209) and the end portion, far away from the shaft hole (210), of the second stirring paddle (209) are located on the same side of the stirring shaft (208).
4. The apparatus for preparing concrete with high strength and compressive property as claimed in claim 1, wherein: the upper part of the inner wall of the reaction shell (101) is provided with two parallel circular partition plates (111), a water outlet cavity (106) is formed between the two circular partition plates (111), a water inlet cavity (105) is formed between the circular partition plate (111) positioned above and the sealing cover (102), the water inlet (107) is positioned on the sealing cover (102) at the upper end part of the reaction shell (101), and the water outlet (108) is positioned on the side wall of the reaction shell (101) between the upper circular partition plate and the lower circular partition plate (111).
5. The apparatus for preparing concrete with high strength and compressive property as claimed in claim 1, wherein: the temperature adjusting device further comprises a rotating shaft (114) penetrating through the centers of the two circular partition plates (111), one end of the rotating shaft (114) penetrates through the sealing cover (102) to extend out of the water reducing agent reaction kettle (1) and is connected with a driving motor (207), the other end of the rotating shaft is located in the middle of the reaction shell (101) and is provided with a water guide plate (115), a water inlet guide cavity (116) and a water outlet guide cavity (117) which are arranged up and down are arranged in the water guide plate (115), two ends of a water pipe are respectively communicated with the water inlet guide cavity (116) and the water outlet guide cavity (117), a water inlet diversion runner (118) and a water outlet runner (119) which are arranged along the axial direction of the rotating shaft (114) are arranged on the outer wall of the rotating shaft (114), two ends of the water inlet diversion runner (118) are respectively communicated with the water inlet cavity (105) and the water inlet guide cavity (116), and two ends of the.
6. The apparatus for preparing concrete with high strength and compressive property as claimed in claim 1, wherein: the water guide plate (115) is a circular plate, the water pipes are a plurality of U-shaped pipes which are arranged around the axis of the water guide plate (115) in an annular array, and the length direction of the U-shaped pipes is in the vertical direction; the U-shaped pipe of the temperature adjusting device positioned at the lower part of the reaction shell (101) is inserted into the ring shape of the U-shaped pipe of the temperature adjusting device positioned at the upper part of the reaction shell (101).
7. The apparatus for preparing concrete with high strength and compressive property as claimed in claim 6, wherein: and a rectangular plate-shaped fin plate (122) arranged along the length direction of the U-shaped pipe is arranged between the two vertical pipes of the U-shaped pipe, and the thickness of the fin plate (122) is equal to the outer diameter of the U-shaped pipe.
8. The apparatus for preparing concrete with high strength and compressive property as claimed in claim 7, wherein: a plurality of water through holes are uniformly arranged in the fin plate (122) along the length direction, the length direction of the water through holes is arranged along the width direction of the fin plate (122), and two ends of the water through holes are respectively connected with the two vertical pipes of the U-shaped pipe.
9. A method for preparing high strength compression resistant concrete using the apparatus for preparing high strength compression resistant concrete according to any one of claims 1 to 8, comprising the steps of:
step one, preparing a concrete water reducing agent, and storing the water reducing agent into a water reducing agent storage box (205);
secondly, placing the concrete material into the concrete mixing device (2) through a concrete feed hopper (202);
pumping the water reducing agent in the water reducing agent storage tank (205) into the concrete mixing device (2);
and step four, fully stirring the materials and the water reducing agent in the concrete mixing device (2) through a stirring device (206) to obtain concrete slurry.
10. The method for preparing the concrete with high strength and compressive property as claimed in claim 9, wherein: the first step specifically comprises the following steps:
step A, placing industrial waste liquid containing 20% Na2SO3 and sodium metabisulfite into a water reducing agent reaction kettle (1), and mixing and stirring for 30min to obtain a material A;
b, adding a methyl allyl polyoxyethylene ether dissolving solution into the material A, and keeping the temperature of the material A at 70 ℃ to stir and mix;
c, dropwise adding acetone into the water reducing agent reaction kettle (1), mixing, preserving heat and reacting for 30 min;
step D, heating the water reducing agent reaction kettle (1) to 50-55 ℃, dropwise adding formaldehyde for reacting for 50min, and completing dropwise adding within 1 h;
step E, dropwise adding the hydrogen peroxide solution into the water reducer reaction kettle (1), and keeping the temperature in the water reducer reaction kettle (1) at 50-55 ℃ in the dropwise adding process after dropwise adding is finished for 1-2 h;
step F, heating the water reducing agent reaction kettle (1) to 80 ℃, dropwise adding an acrylic acid solution, and finishing dropwise adding within 1.5-2 h;
step G, heating the water reducing agent reaction kettle (1) to 100-120 ℃, and then dropwise adding formaldehyde again, wherein the dropwise adding time is controlled for 2-3 h;
h, dropwise adding a thioglycollic acid solution, keeping the temperature at 60 ℃ for reaction for 3 hours after dropwise adding is finished within 3-3.5 hours;
and step I, after the heat preservation reaction is finished, cooling to 40 ℃ to obtain the environment-friendly composite concrete water reducer.
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| CA2946366A1 (en) * | 2014-04-22 | 2015-10-29 | Bayer Aktiengesellschaft | Multi-stage stirred reactor having reduced back mixing |
| CN204844486U (en) * | 2015-07-20 | 2015-12-09 | 章涛 | Concrete -mixer |
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| CN206382009U (en) * | 2017-01-19 | 2017-08-08 | 天津市南洋兄弟石化设备有限公司 | The fast reactor of condensing rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS4842546B1 (en) * | 1968-04-20 | 1973-12-13 | ||
| CN103641354A (en) * | 2013-11-29 | 2014-03-19 | 山东七星岩建材科技有限公司 | Environment-friendly concrete superplasticizer and preparation method thereof |
| CA2946366A1 (en) * | 2014-04-22 | 2015-10-29 | Bayer Aktiengesellschaft | Multi-stage stirred reactor having reduced back mixing |
| CN204844486U (en) * | 2015-07-20 | 2015-12-09 | 章涛 | Concrete -mixer |
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Effective date of registration: 20210720 Address after: 325600 Yueqing Bay port area, Yueqing City, Wenzhou City, Zhejiang Province (in Wenzhou Yueqing Bay Port Co., Ltd.) Applicant after: Yueqing Jiasheng Concrete Co.,Ltd. Address before: 463000 Yang Si Zu, Xiaolou village committee, Wangdian Township, Miyang County, Zhumadian City, Henan Province Applicant before: Liu Qingshan |
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