CN210252153U

CN210252153U - Pre-melting system for macromonomer used for production of polycarboxylate superplasticizer

Info

Publication number: CN210252153U
Application number: CN201920982787.4U
Authority: CN
Inventors: 乔醴峰; 秦满义; 任运杰
Original assignee: Shanxi Great Architectural Technology Co ltd
Current assignee: Shanxi Great Architectural Technology Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-04-07
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to the technical field of water reducing agent production equipment, in particular to a macromonomer pre-melting system for producing a polycarboxylate water reducing agent, wherein a macromonomer is added into the melting system through a feeding funnel bin, so that the feeding efficiency is ensured; the redistribution of the circulating liquid is realized through the material guiding plate and the material guiding pipe, and the rapid, uniform and efficient mixing of the material liquid in the material melting kettle is realized; the temperature of the material melting reaction kettle is controlled through a steam jacket; the materials in the device are quickly mixed through the stirring shaft and the circulating pump; the system realizes ground feeding operation and avoids danger of high-altitude operation; the centralized feeding and material melting process can be simultaneously carried out with the synthesis process of the polycarboxylate superplasticizer, and the time cost and the steam consumption are saved compared with the single-kettle operation; because the polymerization reaction process releases heat, only a small amount of steam is needed to maintain the reaction temperature in the synthesis, so that the steam at the outlet of the material melting kettle can be utilized, the exhaust steam can be utilized for the second time, the energy consumption is further saved, and the production cost is reduced.

Description

Pre-melting system for macromonomer used for production of polycarboxylate superplasticizer

Technical Field

The utility model relates to a water-reducing agent production facility technical field, more specifically relates to an used macromonomer's of polycarboxylate water-reducing agent production material system that preheats.

Background

The polycarboxylate superplasticizer serving as a third-generation high-performance water reducer is widely applied to various concrete projects and becomes an indispensable material in infrastructure construction. The main raw material in the production process of the polycarboxylic acid water reducing agent is an ether macromonomer polymerized by ethylene oxide, mainly comprising a sliced solid, so that the solid macromonomer needs to be melted by heating in the first step during production. In the traditional production process, a large monomer is firstly conveyed to a production platform by a forklift or a conveyor belt, and then conveyed to a feeding port of a reaction kettle one by workers to feed materials, the whole process is higher in the lift-off of the production platform, the operation space on the platform is limited, the safety risk of material melting operation is increased by the forklift lifting operation and the track conveying mode, the production time is prolonged by the single kettle material melting mode, the production period is prolonged by 30%, the steam utilization rate of material melting is lower, and the production cost is increased. Therefore, a system for effectively solving the problems of high-altitude operation and centralized material melting is urgently needed, the production period is prolonged, the steam consumption is reduced, and the safe, reliable and stable production is ensured.

SUMMERY OF THE UTILITY MODEL

In order to overcome exist not enough among the prior art, the utility model provides an used macromonomer's of polycarboxylate water reducing agent production material system of changing in advance solves prior art, changes in polycarboxylate water reducing agent production process material inefficiency, the big scheduling problem of the operation degree of difficulty.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a macromonomer pre-melting system for producing a polycarboxylate superplasticizer comprises a melting reaction kettle and a feeding system, wherein a steam inlet is formed in the upper part of an interlayer of the melting reaction kettle, a steam outlet is formed in the lower part of the interlayer, and a reaction kettle discharge pipeline is formed in the bottom of the interlayer; the feeding system comprises a feeding hopper bin and a circulating pump, the lower part of the material melting reaction kettle is communicated with the feeding hopper bin through a circulating pipeline, an outlet of the feeding hopper bin is communicated with an inlet of the circulating pump through a front pipeline of the pump, and an outlet of the circulating pump is communicated with the top of the material melting reaction kettle through a rear pipeline of the pump.

Further, a weight scale is arranged at the bottom of the material melting reaction kettle.

Further, a valve is arranged on the circulating pipeline.

Further, the pipe diameter of the pipeline before the pump is DN 50; the pipe diameter of the pipeline behind the pump is DN 100.

Furthermore, the melting reaction kettle is provided with a material guiding plate, and the material guiding plate is lower than the part of the melting reaction kettle communicated with the pipeline behind the pump and is higher than the liquid level of the material liquid in the melting reaction kettle; the material guiding plate is rotationally connected with the stirring shaft; a plurality of material guiding pipes are axially arranged at the bottom of the material guiding plate.

Furthermore, the feeding hopper bin comprises a feeding hopper and a material pressing plate, a feeding bin is arranged on the side surface of the feeding hopper, and the bottom of the feeding hopper is communicated with the middle of the feeding bin through a discharging port of the feeding hopper; the feeding bin is internally provided with a pressure plate, the pressure plate is connected with the feeding bin in a sliding and sealing manner, and the bottom of the feeding bin is communicated with a circulating pipeline.

Further, the feed hopper bottom is provided with many feed screws that are provided with side by side.

Further, the width of a discharge port of the feed hopper is smaller than that of the feeding bin.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

the utility model provides a large monomer pre-melting system for producing a polycarboxylate superplasticizer, which adds a large monomer into a melting system through a feeding hopper bin, thereby ensuring the feeding efficiency; the redistribution of the circulating liquid is realized through the material guiding plate and the material guiding pipe, and the rapid, uniform and efficient mixing of the material liquid in the material melting kettle is realized; the temperature of the material melting reaction kettle is controlled through a steam jacket; the materials in the device are quickly mixed through the stirring shaft and the circulating pump; the system realizes ground feeding operation and avoids danger of high-altitude operation; the centralized feeding and material melting process can be simultaneously carried out with the synthesis process of the polycarboxylate superplasticizer, and the time cost and the steam consumption are saved compared with the single-kettle operation; because the synthesis process of the polycarboxylic acid belongs to a heat release process, only a small amount of steam is needed to maintain the reaction temperature in the synthesis process, so that the steam at the outlet of the material melting kettle can be utilized, the waste steam can be secondarily utilized, the energy consumption is further saved, and the production cost is reduced.

Drawings

FIG. 1 is a schematic diagram of a system for predissociation of a macromonomer used for producing a polycarboxylate superplasticizer according to the present invention;

FIG. 2 is a front view of a hopper bin;

figure 3 is a side view of a hopper bin.

In the figure: 1 is a material melting reaction kettle, 2 is a steam inlet, 3 is a steam outlet, 4 is a reaction kettle discharge pipeline, 5 is a feeding hopper bin, 6 is a circulating pump, 7 is a circulating pipeline, 8 is a pipeline before a pump, 9 is a pipeline after the pump, 10 is a weight scale, 11 is a valve, 12 is a guide plate, 13 is a stirring shaft, 14 is a guide pipe, 15 is a feed hopper, 16 is a pressure plate, 17 is a feeding bin, 18 is a feed hopper discharge port, and 19 is a feeding screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figure 1, the system for pre-dissolving the macromonomer used for producing the polycarboxylate superplasticizer comprises a dissolving material reaction kettle 1 and a feeding system, wherein a steam inlet 2 is arranged at the upper part of an interlayer of the dissolving material reaction kettle 1, a steam outlet 3 is arranged at the lower part of the interlayer, and a reaction kettle discharge pipeline 4 is arranged at the bottom; the feeding system comprises a feeding funnel bin 5 and a circulating pump 6, wherein the lower part of a material melting reaction kettle 1 is communicated with the feeding funnel bin 5 through a circulating pipeline 7, a valve 11 is arranged on the circulating pipeline 7, the outlet of the feeding funnel bin 5 is communicated with the inlet of the circulating pump 6 through a front pump pipeline 8, the pipe diameter of the front pump pipeline 8 is DN50, the outlet of the circulating pump 6 is communicated with the top of the material melting reaction kettle 1 through a rear pump pipeline 9, and the pipe diameter of the rear pump pipeline 9 is DN 100. The bottom of the material melting reaction kettle is provided with a weight scale 10.

In this embodiment, the chemical material reaction kettle 1 is provided with a material guiding plate 12, and the material guiding plate 12 is lower than the part of the post-pump pipeline 9 communicated with the chemical material reaction kettle 1 and higher than the liquid level of the material liquid in the chemical material reaction kettle 1; the material guiding plate 12 is rotationally connected with the stirring shaft 13; a plurality of material guiding pipes 14 are axially arranged at the bottom of the material guiding plate 12.

As shown in fig. 2-3, the feeding hopper bin 5 includes a feeding hopper 15 and a material pressing plate 16, a material feeding bin 17 is disposed on a side surface of the feeding hopper 15, and a bottom of the feeding hopper 15 is communicated with a middle portion of the material feeding bin 17 through a feeding hopper discharge port 18, that is, the feeding hopper 15 and the material feeding bin 17 have corresponding openings as feeding hopper discharge ports 18 respectively; the pressure plate 16 is arranged in the feeding bin 17 and is connected with the feeding bin 17 in a sliding and sealing mode, and the bottom of the feeding bin 17 is communicated with the circulating pipeline 7. The bottom of the feed hopper 15 is provided with a plurality of feed screws 19 arranged side by side. The width of the discharge port 18 of the feed hopper is smaller than that of the feed bin 17.

When the utility model is implemented, firstly, 10 tons of softened water are added into the material dissolving reaction kettle 1, the stirring device is started, the stirring shaft 13 starts to stir, the valve of the steam inlet 2 is opened, the stirring device is closed when the temperature of the material dissolving reaction kettle 1 reaches about 40 ℃, the valve 11 is opened, the circulating pump 6 is opened, after the system is stabilized, adding 10 tons of macromonomer into a feed hopper 15, adjusting a valve of a steam inlet 1, controlling the temperature of a material melting reaction kettle 1 to be maintained at about 45 ℃, closing the valve 11 after the feeding is finished, pushing a material pressing plate 16 to a discharge port 18 of the feed hopper and then fixing, after material liquid in a pipeline 8 before a pump and a pipeline 9 after the pump are all lifted into the material melting reaction kettle 1, or manually moving the feed liquid in the pipeline 8 before the pump and the pipeline 9 after the pump into the material dissolving reaction kettle 1, starting the stirring device, stirring for 30min, starting an outlet valve of the material dissolving kettle after the material dissolving is finished, and sending the material dissolving kettle to each reaction kettle through a discharge pipeline 4 of the reaction kettle and a weight scale 10.

The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.

Claims

1. The utility model provides a used macromonomer's of polycarboxylate water reducing agent production predigestion material system which characterized in that: the system comprises a material melting reaction kettle (1) and a feeding system, wherein a steam inlet (2) is arranged at the upper part of an interlayer of the material melting reaction kettle (1), a steam outlet (3) is arranged at the lower part of the interlayer, and a reaction kettle discharge pipeline (4) is arranged at the bottom of the interlayer; the feeding system comprises a feeding funnel bin (5) and a circulating pump (6), the lower part of the chemical material reaction kettle (1) is communicated with the feeding funnel bin (5) through a circulating pipeline (7), the outlet of the feeding funnel bin (5) is communicated with the inlet of the circulating pump (6) through a pump front pipeline (8), and the outlet of the circulating pump (6) is communicated with the top of the chemical material reaction kettle (1) through a pump rear pipeline (9).

2. The system for predigesting the macromonomer used for producing a polycarboxylate superplasticizer according to claim 1, wherein: the bottom of the material melting reaction kettle (1) is provided with a weight scale (10).

3. The system for predigesting the macromonomer used for producing a polycarboxylate superplasticizer according to claim 1, wherein: and a valve (11) is arranged on the circulating pipeline (7).

4. The system for predigesting the macromonomer used for producing a polycarboxylate superplasticizer according to claim 1, wherein: the pipe diameter of the pump front pipeline (8) is DN 50; the pipe diameter of the pump rear pipeline (9) is DN 100.

5. The system for predigesting the macromonomer used for producing a polycarboxylate superplasticizer according to claim 1, wherein: the chemical material reaction kettle (1) is provided with a material guiding plate (12), and the material guiding plate (12) is lower than the part of the pump rear pipeline (9) communicated with the chemical material reaction kettle (1) and is higher than the liquid level of the material liquid in the chemical material reaction kettle (1); the guide plate (12) is rotationally connected with the stirring shaft (13); a plurality of material guiding pipes (14) are axially arranged at the bottom of the material guiding plate (12).

6. The system for predigesting the macromonomer used for producing a polycarboxylate superplasticizer according to claim 1, wherein: the feeding hopper bin (5) comprises a feeding hopper (15) and a material pressing plate (16), a material feeding bin (17) is arranged on the side surface of the feeding hopper (15), and the bottom of the feeding hopper (15) is communicated with the middle part of the material feeding bin (17) through a feeding hopper discharge port (18); the material pressing plate (16) is arranged in the material inlet bin (17) and is connected with the material inlet bin (17) in a sliding and sealing mode, and the bottom of the material inlet bin (17) is communicated with the circulating pipeline (7).

7. The system for predigesting the macromonomer used for producing a polycarboxylate water reducer according to claim 6, wherein: the bottom of the feed hopper (15) is provided with a plurality of feeding screws (19) which are arranged side by side.

8. The system for predigesting the macromonomer used for producing a polycarboxylate water reducer according to claim 6, wherein: the width of the discharge port (18) of the feed hopper is smaller than that of the feed bin (17).