CN112169636B

CN112169636B - Concrete antifreeze agent preparation facilities

Info

Publication number: CN112169636B
Application number: CN202011035615.XA
Authority: CN
Inventors: 张鑫
Original assignee: Guizhou Kaixiang New Materials Co ltd
Current assignee: Guizhou Kaixiang New Materials Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2022-03-11
Anticipated expiration: 2040-09-27
Also published as: CN112169636A

Abstract

The application relates to the technical field of concrete equipment, and particularly discloses a concrete antifreeze agent preparation device which comprises a stirring box, a water tank, a stirring paddle, a fixed cylinder and a submersible pump, wherein the water tank is coaxially sleeved on the periphery of the stirring box; a stirring paddle is coaxially arranged inside the stirring box; a fixed cylinder is fixed at the top of the stirring box, a sliding plate is connected inside the fixed cylinder in a sliding and sealing manner, the sliding plate is a magnet, a first one-way inlet valve, a squeezing valve, an electromagnet and a second switch are arranged on the part, located on the inner side of the fixed cylinder, at the top of the stirring box, and a first switch is fixed at the top of the fixed cylinder; the bottom of the side wall of the fixed cylinder is connected with a charging hopper, and a second one-way inlet valve is arranged between the charging hopper and the fixed cylinder; the immersible pump sets up the interior bottom in the pond, and the export of immersible pump passes through the top intercommunication of water pipe and fixed section of thick bamboo. The purpose of this patent is to solve the problem that the in-process of waiting for the solution cooling wastes a large amount of time, leads to the work efficiency of preparation antifreeze low.

Description

Concrete antifreeze agent preparation facilities

Technical Field

The invention relates to the technical field of concrete equipment, in particular to a concrete antifreeze agent preparation device.

Background

The early-strength antifreeze agent adopts a special antifreeze material, can effectively reduce the freezing point of concrete and mortar, greatly improve the antifreeze performance of the concrete and the mortar at negative temperature, improve the early strength of the concrete and the mortar by more than 80 percent, and does not reduce the later strength, thereby ensuring that the strength is developed under the conditions of positive and negative temperature, and having obvious effect.

The Chinese patent with the publication number of CN108545762B discloses a method for preparing a concrete early strength antifreeze agent by using waste sulfuric acid containing heavy metals, which is characterized by comprising the following steps:

(1) slowly adding sodium hydroxide into the waste sulfuric acid solution containing heavy metals while stirring;

the waste sulfuric acid containing heavy metals is waste acidic washing liquor generated in the steel finishing process in the steel calendering processing industry;

(2) and testing the pH value of the solution, stopping adding the sodium hydroxide when the pH value is 8-13, continuing stirring, and cooling to room temperature to obtain emulsion, thus obtaining the concrete early-strength antifreeze agent.

In order to ensure the quality of the antifreeze, in the step (1), if the temperature is increased too fast in the process of adding the sodium hydroxide, the addition is stopped or a cooling measure is taken.

In the prior art, sodium hydroxide is manually added into the waste sulfuric acid solution, the temperature is high in the quality of the antifreeze agent product, the final quality of the antifreeze agent is easily influenced due to inaccurate control, and a large amount of time is wasted in the process of adding the antifreeze agent in the midway waiting process, so that the working efficiency of preparing the antifreeze agent is low.

Disclosure of Invention

Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a concrete antifreeze agent preparation device, and solve the problem that the working efficiency of antifreeze agent preparation is low due to the fact that a large amount of time is wasted in the process of waiting for cooling of a solution.

In order to solve the problems, the technical scheme adopted by the invention is as follows: a concrete antifreeze agent preparation device comprises a stirring box, a water pool, a stirring paddle, a fixed cylinder and a submersible pump, wherein the stirring box is a hollow cylinder, the axis of the stirring box is arranged along the vertical direction, and the top of the stirring box is provided with a feed valve; the pool is coaxially sleeved on the periphery of the stirring box; a stirring paddle is coaxially arranged inside the stirring box and the stirring box, and the stirring paddle is driven by a motor; the top of the stirring box is fixedly provided with a fixed cylinder which is arranged along the vertical direction, the inside of the fixed cylinder is connected with a sliding plate in a sliding and sealing manner, the sliding plate is a magnet, a part of the top of the stirring box, which is positioned at the inner side of the fixed cylinder, is provided with a first one-way inlet valve, a squeezing valve, an electromagnet and a second switch, a valve core of the squeezing valve is arranged vertically upwards, a contact of the second switch is arranged vertically upwards, the top of the fixed cylinder is fixedly provided with a first switch, the contact of the first switch is arranged vertically downwards, the first switch and the second switch are both electrically connected with the electromagnet and a submersible pump, and the first switch and the second switch are arranged to be double-control switches; the bottom of the side wall of the fixed cylinder is connected with a feeding hopper, and a second one-way inlet valve is arranged between the feeding hopper and the fixed cylinder; the immersible pump sets up the interior bottom in the pond, the export of immersible pump passes through the top intercommunication of water pipe and fixed section of thick bamboo.

The technical principle of the technical scheme is as follows:

1. arranging a stirring box, adding the waste sulfuric acid containing heavy metals into the stirring box from a feeding valve, closing the feeding valve after the feeding is finished, and stirring the materials in the stirring box under the action of a stirring paddle;

2. the water pump in the water tank pumps water to the part of the fixed cylinder, which is positioned above the sliding plate, the sliding plate slides downwards due to the gravity of the water, when the sliding plate slides downwards to the limit position below, the sliding plate can successively press the valve core of the extrusion valve and the contact of the second switch, the valve core of the extrusion valve is pressed, the extrusion valve is opened, air and sodium hydroxide powder in the part of the fixed cylinder, which is positioned below the sliding plate, can be discharged to the inside of the stirring box through the extrusion valve, the second switch is pressed, the submersible pump stops working, the electromagnet is electrified simultaneously, the electromagnet and the sliding plate repel each other, the sliding plate slides upwards, on one hand, the sliding plate extrudes the water in the fixed cylinder out of the fixed cylinder, the water flows to the top of the stirring box and the side wall of the stirring box along the side wall of the fixed cylinder, the heat exchange area between the water flow and the stirring box is increased in the process that the water flows downwards, the evaporation of water can be accelerated, the evaporation of water takes away heat in the stirring box, the temperature in the stirring box can be quickly reduced, the temperature can be continuously reduced, and the addition of sodium hydroxide powder is not easily stopped due to overhigh temperature in the stirring box; on the other hand, the sliding plate slides upwards, the part of the inside of the fixed cylinder, which is positioned below the sliding plate, generates negative pressure, the first one-way inlet valve and the second one-way inlet valve are opened, air in the stirring box and sodium hydroxide powder in the charging hopper are simultaneously sucked in the fixed cylinder, so that slight negative pressure is generated in the stirring box, and when the sliding plate slides downwards again, the pressure difference between the inside of the stirring box and the inside of the fixed cylinder can be increased, so that the sodium hydroxide powder in the fixed cylinder can be conveniently and smoothly discharged into the stirring box; after the slide plate moves to the extreme position of top, the slide plate is pressed to first switch, and the immersible pump begins work, and the electro-magnet outage simultaneously, the slide plate is again under the gravity of water downstream and constantly repeated.

The beneficial effect that this scheme produced is: compared with the existing method for preparing the antifreeze agent, when the temperature is raised too fast, a large amount of time is wasted in the process of waiting for the cooling of the solution in the existing method for preparing the antifreeze agent, so that the working efficiency of preparing the antifreeze agent is low, and the final quality of the antifreeze agent is easily influenced due to the fact that the temperature is large for the quality of the antifreeze agent product and the temperature is not accurately controlled; and through rivers and electro-magnet drive slide intermittent type nature up-and-down motion in this application scheme, intermittent type nature discharge sodium hydroxide powder to the agitator tank and inhale the drainage when sodium hydroxide powder in the inside intermittent type nature water storage of solid fixed cylinder, gu fixed cylinder intermittent type nature water storage can make rivers continuously cool down to the agitator tank with the drainage, ensure that the inside temperature of agitator tank remains stable, avoid the inside temperature of agitator tank to rise too fast, temperature control is accurate relatively, ensure the final quality of antifreeze, and also saved the time of waiting for the solution cooling, the work efficiency of preparation antifreeze is high.

Further, the bottom of agitator tank is provided with the relief valve.

The arrangement of the discharge valve is convenient for discharging the prepared antifreeze agent.

Further, a spring is arranged inside the fixed cylinder, one end of the spring is fixed with the sliding plate, and the other end of the spring is fixed at the top of the stirring box.

The spring is arranged to assist the sliding plate to reset quickly.

Further, the stirring rake includes stirring column and paddle, be fixed with the scraper blade of "L" type on the stirring column, the horizontal end of scraper blade is fixed and with the laminating of the top of agitator tank with the stirring column, the vertical end of scraper blade and the laminating of the inside wall of agitator tank.

The setting of scraper blade is scraped the inside wall of agitator tank and the material at top down, avoids the waste of material.

Furthermore, a sponge is fixed at the inlet end of the first one-way inlet valve, a groove capable of containing the sponge is formed in the top of the horizontal end of the scraper, and the depth of the groove is 0.3-0.5 times of the height of the sponge.

The rotatory in-process of scraper blade, the recess can extrude the sponge, with the sponge wringing, makes the sponge repeatedly absorb water, avoids inside the inside moisture of agitator tank to get into the solid fixed cylinder inside to avoid the reduction of the inside moisture of agitator tank.

Further, agitator tank inside is provided with temperature sensor, temperature sensor passes through controller and immersible pump electric connection, and along with the rising of the temperature that temperature sensor detected, temperature sensor passes through the flow increase of controller control immersible pump.

The higher the temperature, the larger the water flow, and the higher the cooling speed in the stirring tank.

Drawings

Fig. 1 is an overall structural view.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a stirring box 10, a discharge valve 11, a charging valve 12, a motor 13, a stirring column 14, a scraper 15, a groove 16, a blade 17, a water pool 20, a drain valve 21, a submersible pump 22, a water pipe 23, a fixed cylinder 30, a sliding plate 31, a spring 32, a first one-way inlet valve 33, a sponge 34, an extrusion valve 35, a second one-way inlet valve 36, an inclined pipe 37, a charging hopper 38, an electromagnet 39, a first switch 41 and a second switch 42.

The embodiment is basically as shown in the attached figures 1-2:

a concrete antifreeze agent preparation device comprises a stirring box 10, a water pool 20, a stirring paddle, a fixed cylinder 30 and a submersible pump 22.

As shown in fig. 1, the stirring box 10 is a hollow cylinder, the axis of the stirring box 10 is arranged along the vertical direction, the top of the stirring box 10 is provided with a charging opening, and a charging valve 12 is arranged in the charging opening; the bottom of agitator tank 10 is provided with the bin outlet, and bin outlet inside is provided with discharge valve 11. The setting of charging valve 12 is convenient to add the waste sulfuric acid that contains the heavy metal to agitator tank 10 inside, and the setting of relief valve 11 is convenient discharges the antifreeze that prepares. In the process of preparing the antifreeze agent, the feeding valve 12 and the discharging valve 11 are both closed, so that the waste of sodium hydroxide powder and the environmental pollution caused by scattering the sodium hydroxide powder into the air are avoided.

As shown in fig. 1, a motor 13 is fixed on the top of the stirring box 10, an output shaft of the motor 13 is arranged vertically downwards, the stirring paddle includes a stirring column 14 and a blade 17, the output shaft of the motor 13 is fixed with the stirring column 14, the stirring column 14 is connected with the stirring box 10 in a rotating and sealing manner, the stirring column 14 and the stirring box 10 are coaxially arranged, the lower end of the stirring column 14 extends to the lower part of the stirring box 10, and the blade 17 is fixed on the lower end of the stirring column 14.

The motor 13 is started, the motor 13 drives the stirring column 14 to rotate, and the stirring column 14 drives the paddle 17 to rotate to stir the materials.

As shown in fig. 1, the shape of the pool 20 is also cylindrical, the pool 20 is coaxially sleeved on the periphery of the stirring box 10, and the height of the pool 20 is flush with the stirring box 10; the bottom of the water tank 20 is provided with a drain valve 21, and after the water in the water tank 20 becomes dirty, the dirty water is drained out of the water tank 20 through the drain valve 21. As shown in fig. 1, a submersible pump 22 is provided at an inner bottom of the sump 20, and an outlet of the submersible pump 22 is communicated with an upper portion of the fixed cylinder 30 through a water pipe 23.

As shown in fig. 1, a fixed cylinder 30 is fixed at the top of the stirring box 10, the axis of the fixed cylinder 30 is arranged along the vertical direction, the fixed cylinder 30 is cylindrical, the inner side wall of the fixed cylinder 30 is smooth, as shown in fig. 2, a sliding plate 31 is connected inside the fixed cylinder 30 in a sliding and sealing manner, the sliding plate 31 is a disc-shaped magnet, a spring 32 is arranged inside the fixed cylinder 30, one end of the spring 32 is fixed with the sliding plate 31, the other end of the spring 32 is fixed at the top of the stirring box 10, and the number of the springs 32 is two and is symmetrically arranged about the axis of the fixed cylinder 30; the top of the stirring box 10 is provided with a first one-way inlet valve 33, a squeezing valve 35, an electromagnet 39 and a second switch 42 on the part located on the inner side of the fixed cylinder 30, the electromagnet 39 is embedded in the top of the stirring box 10, a valve core of the squeezing valve 35 is vertically arranged upwards, a contact of the second switch 42 is vertically arranged upwards, the top of the fixed cylinder 30 is fixed with a first switch 41 through a mounting plate, a contact of the first switch 41 is vertically arranged downwards, the first switch 41 and the second switch 42 are both electrically connected with the electromagnet 39 and the submersible pump 22, the first switch 41 and the second switch 42 are arranged to be double-control switches, when the second switch 42 is pressed, the submersible pump 22 stops working, the electromagnet 39 is powered on, when the first switch 41 is pressed, the submersible pump 22 starts to work, and the electromagnet 39 is powered off. As shown in fig. 1, a hopper 38 is connected to the bottom of the right side wall of the fixed cylinder 30 through an inclined pipe 37, and as shown in fig. 2, a second one-way inlet valve 36 is provided between the hopper 38 and the fixed cylinder 30.

When the sliding plate 31 slides downwards to the lower limit position, the sliding plate 31 can successively press the valve core of the extrusion valve and the second switch 42, the valve core of the extrusion valve 35 is pressed, the extrusion valve 35 is opened, substances in the part of the fixed cylinder 30, which is positioned below the sliding plate 31, can be discharged into the stirring tank 10 through the extrusion valve 35, the second switch 42 is pressed, the submersible pump 22 stops working, the electromagnet 39 is electrified, the electromagnet 39 and the sliding plate 31 repel each other to drive the sliding plate 31 to slide upwards, on one hand, the sliding plate 31 presses water in the fixed cylinder 30, which is positioned above the sliding plate 31, out of the fixed cylinder 30, the water flows to the top of the stirring tank 10 and the side wall of the stirring tank 10 along the side wall of the fixed cylinder 30 to flow into the water tank 20, the heat exchange area between the water flow and the stirring tank 10 is increased in the process of the water flow flowing downwards, the evaporation of the water can be accelerated, and the heat in the stirring tank 10 can be taken away by the evaporation of the water, the temperature in the stirring box 10 can be quickly and continuously reduced, and the sodium hydroxide powder is not easy to stop being added due to overhigh temperature in the stirring box 10; on the other hand, the slide plate 31 slides upwards, the part of the inside of the fixed cylinder 30, which is positioned below the slide plate 31, generates negative pressure, the first one-way inlet valve 33 and the second one-way inlet valve 36 are opened, the air inside the stirring box 10 and the sodium hydroxide powder inside the feeding hopper 38 are simultaneously sucked into the inside of the fixed cylinder 30, so that slight negative pressure is generated inside the stirring box 10, and when the slide plate 31 slides downwards again, the pressure difference between the inside of the stirring box 10 and the inside of the fixed cylinder 30 can be increased, so that the sodium hydroxide powder inside the fixed cylinder 30 can be conveniently and smoothly discharged into the stirring box 10; when the slide plate 31 moves to the upper limit position, the slide plate 31 is limited by the mounting plate, the slide plate 31 presses the first switch 41, the submersible pump 22 starts to work, the electromagnet 39 is powered off, and the slide plate 31 moves downwards under the gravity of the water again and repeats continuously. The provision of the spring 32 assists the quick return of the slide plate 31.

As shown in fig. 1, an inverted "L" shaped scraper 15 is fixed on the mixing column 14, the horizontal end of the scraper 15 is fixed with the mixing column 14 and is attached to the top of the mixing box 10, and the vertical end of the scraper 15 is attached to the inner side wall of the mixing box 10. The scraper 15 scrapes off the materials on the inner side wall and the top of the stirring box 10, so that the waste of the materials is avoided. The inlet end of the first one-way inlet valve 33 is fixed with a sponge 34, the top of the horizontal end of the scraper 15 is provided with a groove 16 capable of containing the sponge 34, and the depth of the groove 16 is 0.4 times of the height of the sponge 34. In the rotating process of the scraper 15, the groove 16 can extrude the sponge 34 to dry the sponge 34, so that the sponge 34 can absorb water repeatedly, the moisture in the stirring box 10 is prevented from entering the fixed cylinder 30, and the moisture in the stirring box 10 is prevented from being reduced.

As shown in fig. 1, the bottom of the stirring tank 10 is provided with a discharge valve 11. The arrangement of the discharge valve 11 is convenient for discharging the prepared antifreeze agent.

In addition, in the present embodiment, a temperature sensor (not shown) is disposed at the bottom of the stirring tank 10, the temperature sensor is electrically connected to the submersible pump 22 through a controller, and the flow rate of the submersible pump 22 is controlled by the temperature sensor to increase along with the increase of the temperature detected by the temperature sensor. The higher the temperature, the larger the water flow, the shorter the time in one cycle of the up-and-down movement of the slide plate 31, and the faster the cooling rate of the inside of the agitation tank 10.

The material of agitator tank 10 in this embodiment chooses 329J3L steel for use, and 329J3L steel is commonly used for making the holding vessel of chemical industry, and 329J3L steel is able to bear or endure the sulfuric acid corrosion to steel all has good heat conductivility, makes things convenient for the inside heat dissipation of agitator tank 10.

The specific implementation process is as follows:

replenishing tap water of one fourth of the capacity of the water pool 20 into the water pool 20 in advance, (the amount of the tap water is not excessive, the excessive tap water causes water waste and influences heat dissipation in the process that the water flows downwards), opening the feed valve 12, adding waste sulfuric acid containing heavy metals into the stirring tank 10, and then closing the feed valve 12; sodium hydroxide powder to be added is filled in the feeding hopper 38 in advance, then the motor 13 is started, and the motor 13 drives the stirring column 14 to drive the paddle 17 to stir the solution; under the initial state, the sliding plate 31 is positioned in the middle of the fixed cylinder 30 under the action of the spring 32, the power supply is switched on, the submersible pump 22 starts to work, the electromagnet 39 is powered off, then the sliding plate 31 intermittently reciprocates up and down under the action of the gravity of water flow and the electromagnet 39, sodium hydroxide powder is discharged into the stirring box 10 while the intermittent water is stored in the fixed cylinder 30, and the water is discharged while the sodium hydroxide powder is sucked, the intermittent water storage and the water discharge of the fixed cylinder 30 can enable the water flow to continuously cool the stirring box 10, the temperature in the stirring box 10 is kept stable, the temperature in the stirring box 10 is prevented from rising too fast, the temperature control is relatively accurate, the final quality of the antifreeze is ensured, the time for waiting for the temperature reduction of the solution is also saved, and the working efficiency for preparing the antifreeze is high.

After the antifreeze agent is prepared, the discharge valve 11 is opened to discharge the antifreeze agent and store the antifreeze agent.

Since the water flow is volatilized as it flows downward, it is necessary to periodically supply a proper amount of water to the inside of the sump 20.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A concrete antifreeze agent preparation facilities which characterized in that: the stirring device comprises a stirring box, a water pool, a stirring paddle, a fixed cylinder and a submersible pump, wherein the stirring box is a hollow cylinder, the axis of the stirring box is arranged along the vertical direction, and the top of the stirring box is provided with a feed valve; the pool is coaxially sleeved on the periphery of the stirring box; a stirring paddle is coaxially arranged inside the stirring box and the stirring box, and the stirring paddle is driven by a motor; the top of the stirring box is fixedly provided with a fixed cylinder which is arranged along the vertical direction, the inside of the fixed cylinder is connected with a sliding plate in a sliding and sealing manner, the sliding plate is a magnet, a part of the top of the stirring box, which is positioned at the inner side of the fixed cylinder, is provided with a first one-way inlet valve, a squeezing valve, an electromagnet and a second switch, a valve core of the squeezing valve is arranged vertically upwards, a contact of the second switch is arranged vertically upwards, the top of the fixed cylinder is fixedly provided with a first switch, the contact of the first switch is arranged vertically downwards, the first switch and the second switch are both electrically connected with the electromagnet and a submersible pump, and the first switch and the second switch are arranged to be double-control switches; the bottom of the side wall of the fixed cylinder is connected with a feeding hopper, and a second one-way inlet valve is arranged between the feeding hopper and the fixed cylinder; the immersible pump sets up the interior bottom in the pond, the export of immersible pump passes through the top intercommunication of water pipe and fixed section of thick bamboo.

2. The apparatus of claim 1, wherein: and a discharge valve is arranged at the bottom of the stirring box.

3. The apparatus of claim 1, wherein: the inside spring that is provided with of fixed section of thick bamboo, the one end and the slide of spring are fixed, and the other end of spring is fixed at the top of agitator tank.

4. The apparatus of claim 1, wherein: the stirring rake includes stirring column and paddle, be fixed with the scraper blade of "L" type of falling on the stirring column, the horizontal end of scraper blade is fixed and with the laminating of the top of agitator tank with the stirring column, the vertical end of scraper blade and the laminating of the inside wall of agitator tank.

5. The apparatus of claim 4, wherein: sponge is fixed at the inlet end of the first one-way inlet valve, a groove capable of containing the sponge is formed in the top of the horizontal end of the scraper, and the depth of the groove is 0.3-0.5 time of the height of the sponge.

6. The apparatus of claim 1, wherein: the inside temperature sensor that is provided with of agitator tank, temperature sensor passes through controller and immersible pump electric connection, and along with the rising of the temperature that temperature sensor detected, temperature sensor passes through the flow increase of controller control immersible pump.