CN218307829U

CN218307829U - Conveyor is used in water-reducing agent production

Info

Publication number: CN218307829U
Application number: CN202222133537.8U
Authority: CN
Inventors: 李勇; 刘华; 倪允绚
Original assignee: Silver Branch Of Gansu Jiuhuan New Material Co ltd
Current assignee: Silver Branch Of Gansu Jiuhuan New Material Co ltd
Priority date: 2022-08-14
Filing date: 2022-08-14
Publication date: 2023-01-17
Anticipated expiration: 2032-08-14

Abstract

The utility model provides a conveyor is used in water-reducing agent production belongs to water-reducing agent production facility field. The conveying device comprises a conveying pipe and a heating box, wherein the conveying pipe is arranged between a storage tank and a reaction kettle, a discharging pipe arranged at the lower part of the storage tank is connected with a feeding end of the conveying pipe through a Venturi tube, a lifting pump is arranged at the rear section of the conveying pipe, and a branch pipe is connected on the conveying pipe between the lifting pump and the reaction kettle; the lower part of the heating box is provided with an electric heating tube, a material guide pipe is arranged above the electric heating tube, one end of the material guide pipe is connected with the branch pipe, the other end of the material guide pipe is connected with a backflow mixing pipe, and the liquid outlet end of the backflow mixing pipe is connected with the throat of the Venturi tube. The utility model discloses an inner loop of liquid material in the transportation process, the liquid material of heating cabinet inner loop heats, and venturi mixes and accelerates the liquid material of inner loop, has effectively prevented that the water-reducing agent from taking place the crystallization in transportation process to guaranteed that the water-reducing agent can be smooth send into reation kettle from the storage tank.

Description

Conveyor is used in water-reducing agent production

Technical Field

The utility model belongs to water-reducing agent production facility field, in particular to conveyor is used in water-reducing agent production.

Background

The water reducing agent is a concrete admixture which can reduce the mixing water consumption under the condition of keeping the slump constant basically, has a dispersing effect on cement particles after being added with the concrete mixture, can improve the workability, reduce the unit water consumption and improve the fluidity of the concrete mixture; or the unit cement consumption is reduced, and the cement is saved. The water reducing agent is generally divided into the following chemical components: lignosulfonate water-reducing agents, naphthalene-based high-efficiency water-reducing agents, melamine-based high-efficiency water-reducing agents, sulfamate-based high-efficiency water-reducing agents, fatty acid-based high-efficiency water-reducing agents and polycarboxylate-based high-efficiency water-reducing agents.

The polycarboxylate superplasticizers with high sodium sulfate content are easy to crystallize due to low temperature in the production and conveying processes and the using processes, and can cause the blockage of conveying pipelines if the products are crystallized in the production and conveying processes, and can cause the great reduction of the fluidity of concrete if the products are crystallized in the using processes, thereby causing the deterioration of the performance of the concrete and influencing the service life of buildings.

The existing research shows that the crystallization problem of the polycarboxylate superplasticizer during construction in winter or at low temperature of 10 ℃ or below can be prevented by reducing the sodium sulfate content in the polycarboxylate superplasticizer with high sodium sulfate content. The low-sodium sulfate-content polycarboxylate superplasticizer can be prepared by taking a high-sodium sulfate-content polycarboxylate superplasticizer as a raw material, cooling the raw material in a reaction kettle to separate out sodium sulfate crystals and filtering the sodium sulfate crystals. When the common conveying device conveys the polycarboxylate water reducing agent with high sodium sulfate content to a reaction kettle, sodium sulfate is easy to separate out and generate crystals to block a conveying pipeline, and the problem is urgently needed to be solved in the production of the polycarboxylate water reducing agent with low sodium sulfate content.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a conveyor is used in water-reducing agent production for mainly solve high sodium sulfate content polycarboxylate water-reducing agent and separate out the problem that produces the crystallization and block up pipeline easily at the sodium sulfate of the in-process of carrying to the reation kettle who produces low sodium sulfate content polycarboxylate water-reducing agent.

In order to realize the above-mentioned purpose, the utility model discloses a technical scheme is a conveyor is used in water-reducing agent production, include:

the conveying pipe is arranged between the storage tank and the reaction kettle, a discharging pipe arranged at the lower part of the water reducing agent storage tank is connected with the feeding end of the conveying pipe through a Venturi tube, a lifting pump is arranged on the rear section of the conveying pipe, and a branch pipe is connected to the conveying pipe between the lifting pump and the reaction kettle;

the heating box, add heating medium in the heating box, the heating box lower part is equipped with the electrothermal tube that is used for heating medium, and the electrothermal tube top is equipped with the passage that soaks in heating medium, and passage one end and branch connection, the other end are connected with the backflow mixing tube, and the play liquid end and the venturi choke department of backflow mixing tube are connected.

Further, the material guide pipe is of a spiral structure.

Furthermore, a first valve is arranged on the discharge pipe, a second valve is arranged on the branch pipe, and a third valve is arranged on the conveying pipe between the lifting pump and the reaction kettle.

Further, be equipped with rabbling mechanism in the holding vessel, rabbling mechanism is including stirring pivot, stirring vane, and on stirring pivot was located to stirring vane, stirring pivot upper end was worn out behind the holding vessel top surface and is connected with the driving motor coaxial of holding vessel top installation.

Preferably, the stirring blade is of a spiral structure.

Furthermore, a jacket is arranged on the outer side of the middle part of the storage tank, a heating medium inlet is formed in the lower part of the jacket, a heating medium outlet is formed in the upper part of the jacket, the heating medium inlet is communicated with the lower part of the heating tank through a circulating pipe, and the heating medium outlet is communicated with the top of the heating tank through a liquid return pipe.

Furthermore, a plurality of vertical heat exchange tubes are uniformly arranged on the inner wall of the middle part of the storage tank in the circumferential direction, and the upper end and the lower end of each heat exchange tube are communicated with the jacket.

The utility model has the beneficial technical effects that: the conveying device for water reducer production mainly solves the problem that sodium sulfate is easy to separate out and crystallize to block a conveying pipeline in the process of conveying the high sodium sulfate content polycarboxylate water reducer to a reaction kettle for producing the low sodium sulfate content polycarboxylate water reducer; the venturi tube, the conveying pipe, the branch pipe and the backflow mixing pipe are used for realizing the internal circulation of the liquid material in the conveying process, the heating box is used for heating the internally circulating liquid material, the venturi tube is used for mixing and accelerating the internally circulating liquid material, and the water reducing agent is effectively prevented from crystallizing in the conveying process, so that the water reducing agent can be smoothly conveyed into the reaction kettle from the storage tank; utilize the heating cabinet to carry out preheating treatment to the holding vessel that is equipped with and presss from both sides cover and heat exchange tube, guarantee that liquid material does not crystallize in the holding vessel, prevent effectively through rabbling mechanism that liquid material from appearing subsiding in the holding vessel to improve liquid material and heating medium's heat exchange efficiency in the holding vessel.

Drawings

Fig. 1 is a schematic structural view of a conveying device for water reducer production according to an embodiment of the present invention;

reference numerals are as follows: 1-storage tank, 101-discharge pipe, 102-jacket, 1021-heating medium inlet, 1022-heating medium outlet, 103-heat exchange pipe, 104-driving motor, 105-stirring rotating shaft, 106-stirring blade, 2-conveying pipe, 201-branch pipe, 202-reflux mixing pipe, 3-venturi pipe, 4-lift pump, 5-heating box, 501-material guide pipe, 502-electric heating pipe, 503-circulating pipe, 504-liquid return pipe, 6-reaction kettle, 7-first valve, 8-second valve, and 9-third valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by embodiments below. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of describing the present patent and for simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present patent.

It should be noted that unless otherwise expressly stated or limited, the terms "mounted," "connected," and "disposed" are intended to be broadly construed, and include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, mechanically connected, and electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

As shown in fig. 1, the conveying device for water reducer production of the embodiment includes a conveying pipe 2 and a heating box 5, wherein the conveying pipe 2 is arranged between a storage tank 1 and a reaction kettle 6, a discharge pipe 101 arranged at the lower part of the water reducer storage tank 1 is connected with a feed end of the conveying pipe 2 through a venturi tube 3, a lift pump 4 is arranged at the rear section of the conveying pipe 2, and a branch pipe 201 is connected on the conveying pipe 2 between the lift pump 4 and the reaction kettle 6; heating medium is added into the heating box 5, an electric heating tube 502 used for heating the heating medium is arranged at the lower part of the heating box 5, a material guide pipe 501 immersed in the heating medium is arranged above the electric heating tube 502, one end of the material guide pipe 501 is connected with the branch pipe 201, the other end of the material guide pipe 501 is connected with the backflow mixing pipe 202, and the liquid outlet end of the backflow mixing pipe 202 is connected with the throat of the Venturi tube 3.

In this embodiment, the storage tank 1 is used for storing the polycarboxylate water reducing agent with high sodium sulfate content, and the reaction kettle 6 is used for cooling the polycarboxylate water reducing agent with high sodium sulfate content to separate out sodium sulfate crystals so as to obtain the polycarboxylate water reducing agent with low sodium sulfate content. The sodium sulfate content in the high sodium sulfate content polycarboxylate water reducer is more than 7 percent by weight, and the sodium sulfate content in the low sodium sulfate content polycarboxylate water reducer is less than 5 percent by weight. The heating medium added into the heating box 5 is heat conduction oil or water.

In order to enhance the heating effect, it is preferable that the material guiding pipe 501 has a spiral structure in this embodiment.

In other application examples, the material guiding pipe 501 of the present invention may also be a serpentine pipe structure.

Specifically, a first valve 7 is arranged on the discharge pipe 101, a second valve 8 is arranged on the branch pipe 201, and a third valve 9 is arranged on the delivery pipe 2 between the lift pump 4 and the reaction kettle 6. The first valve 7, the second valve 8 and the third valve 9 can be manual valves or electric valves according to specific conditions. Valves may be disposed on the circulation pipe 503 and the liquid return pipe 504, respectively.

Specifically, be equipped with rabbling mechanism in holding vessel 1, rabbling mechanism includes stirring pivot 105, stirring vane 106, and stirring vane 106 is located on the stirring pivot 105, and stirring pivot 105 upper end is worn out behind the 1 top surface of holding vessel and is driven motor 104 coaxial coupling of 1 top installation of holding vessel. Effectively prevent through rabbling mechanism that the liquid material of lower part appears subsiding in the holding vessel 1 to improve the heat exchange efficiency of liquid material and heating medium in the holding vessel 1.

In order to enhance the stirring effect, it is preferable that the stirring blade 106 has a spiral structure in this embodiment.

Specifically, the jacket 102 is arranged on the outer side of the middle part of the storage tank 1, the lower part of the jacket 102 is provided with a heating medium inlet 1021, the upper part of the jacket 102 is provided with a heating medium outlet 1022, the heating medium inlet 1021 is communicated with the middle lower part of the heating box 5 through a circulating pipe 503, and the heating medium outlet 1022 is communicated with the top of the heating box 5 through a liquid return pipe 504; a plurality of vertical heat exchange tubes 103 are uniformly arranged on the inner wall of the middle part of the storage tank 1 in the circumferential direction, and the upper end and the lower end of each heat exchange tube 103 are communicated with the jacket 102. The heating box 5 is used for preheating the storage tank 1 provided with the jacket 102 and the heat exchange tube 103, so that the liquid material in the storage tank 1 is ensured not to be crystallized.

The utility model discloses a theory of operation: an external power supply is adopted to supply power to the electric heating tube 502, and the electric heating tube 502 heats the heating medium; the heating medium realizes the recycling of the heating medium through the circulating pipe 503, the jacket 102, the liquid return pipe 504 and the heating box 5, and the heating medium heats and preserves the temperature of the liquid material in the storage tank 1; start driving motor 104 and drive stirring pivot 105, stirring vane 106 rotates, first valve 7 is opened in order in the stirring, second valve 8, third valve 9, liquid material sends into reation kettle 6 through conveyer pipe 2 from holding vessel 1, in the transportation process, venturi 3, conveyer pipe 2, branch pipe 201, the inner loop of liquid material is realized to backflow mixing tube 202, the heating cabinet 5 heats the liquid material of inner loop, venturi 3 mixes and accelerates the liquid material of inner loop and the outflow of holding vessel 1, effectively prevented that the water-reducing agent from taking place the crystallization among the transportation process, thereby guaranteed that the water-reducing agent can be smooth send into reation kettle 6 from the holding vessel.

The utility model discloses a conveyor is used in water-reducing agent production can also be used for solving high sodium sulfate content polycarboxylate water-reducing agent production crowning sodium sulfate content polycarboxylate water-reducing agent finished product and send to the problem that the pipeline was blockked up in the transportation process of finished product storage tank from compound reation kettle. The method is characterized in that a storage tank 1 and a reaction kettle 6 are replaced by a compound reaction kettle for producing the finished product of the polycarboxylate superplasticizer with high sodium sulfate content and a finished product storage tank for storing the finished product of the polycarboxylate superplasticizer with high sodium sulfate content.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The embodiments of the present invention are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A conveying device for water reducer production comprises a conveying pipe and a heating box; the method is characterized in that: the conveying pipe is arranged between the storage tank and the reaction kettle, a discharging pipe arranged at the lower part of the storage tank is connected with the feeding end of the conveying pipe through a Venturi tube, a lifting pump is arranged at the rear section of the conveying pipe, and a branch pipe is connected on the conveying pipe between the lifting pump and the reaction kettle; heating medium is added into the heating box, an electric heating tube for heating the heating medium is arranged at the lower part of the heating box, a material guide pipe immersed in the heating medium is arranged above the electric heating tube, one end of the material guide pipe is connected with the branch pipe, the other end of the material guide pipe is connected with a backflow mixing pipe, and the liquid outlet end of the backflow mixing pipe is connected with the throat of the Venturi tube.

2. The conveyor is used in water-reducing agent production of claim 1, characterized in that: the material guide pipe is of a spiral structure.

3. The conveyor is used in water-reducing agent production of claim 1, characterized in that: the discharging pipe is provided with a first valve, the branch pipe is provided with a second valve, and the conveying pipe between the lifting pump and the reaction kettle is provided with a third valve.

4. The conveyor is used in water-reducing agent production of claim 1, characterized in that: be equipped with rabbling mechanism in the holding vessel, the rabbling mechanism is including stirring pivot, stirring vane, and on stirring pivot was located to stirring vane, stirring pivot upper end was worn out the driving motor coaxial coupling of holding vessel top portion installation behind the holding vessel top surface.

5. The conveyor is used in water-reducing agent production of claim 4, characterized in that: the stirring blade is of a spiral structure.

6. The conveyor is used in water-reducing agent production of claim 4, characterized in that: the outer side of the middle part of the storage tank is provided with a jacket, the lower part of the jacket is provided with a heating medium inlet, the upper part of the jacket is provided with a heating medium outlet, the heating medium inlet is communicated with the lower part of the heating box through a circulating pipe, and the heating medium outlet is communicated with the top of the heating box through a liquid return pipe.

7. The conveyor is used in water-reducing agent production of claim 6, characterized in that: a plurality of vertical heat exchange tubes are uniformly arranged on the circumferential direction of the inner wall of the middle part of the storage tank, and the upper end and the lower end of each heat exchange tube are communicated with the jacket.