Homogeneous polycarboxylate superplasticizer reaction kettle

Abstract

The utility model relates to a homogeneous polycarboxylate superplasticizer reaction kettle which comprises a reaction kettle body, a feeding pipe, a first dripping pipe, a second dripping pipe, an observation window and a stirring rod extending into the reaction kettle body are arranged at the top of the outer wall of the reaction kettle body, and a plurality of connecting columns are fixedly installed on the stirring rod. An annular auxiliary stirring ring is fixedly installed at the end, away from the stirring rod, of the connecting column, a plurality of pairs of stirring paddles are further fixedly installed on the stirring rod from top to bottom, each pair of stirring paddles are installed in a pairwise opposite mode and are distributed on the stirring rod in a three-dimensional spiral mode, and a discharging pipe is fixedly installed in the middle of the bottom of the outer wall of the reaction kettle body. And a valve is mounted on the discharge pipe. The mixing effect on raw materials near the inner wall of the reaction kettle body can be enhanced, and the overall mixing efficiency and the production quality of the reaction kettle are improved.

Description

Technical Field

[0001] The utility model relates to an admixture preparation device, and more specifically to a homogeneous polycarboxylate water-reducing agent reaction kettle. Background Art

[0002] The polycarboxylate water reducer widely used in engineering currently belongs to the third generation of high-performance water reducers. It is generally copolymerized by unsaturated monomers containing carboxyl groups and other monomers, and its molecular structure is comb-shaped, multi-branched or linear. In the process of producing polycarboxylate water reducer in the reactor, multiple processes are involved, such as weighing, feeding, dissolving, stirring, dripping, heat preservation, neutralization, dilution, and discharging. According to the needs of different production processes, there are also temperature control requirements such as heating and cooling. With the increase of the degree of polymerization reaction in the reactor, the viscosity of the raw materials in the reactor continues to increase, and the single stirring paddle has a poor effect on the stirring and mixing of the raw materials, resulting in the raw materials close to the inner wall and the bottom of the reactor body cannot be fully mixed, and gel or excessive molecular weight is prone to occur. It not only affects the overall production quality, but also affects the subsequent production progress. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a homogeneous polycarboxylate water-reducing agent reactor, which can strengthen the mixing effect of raw materials near the inner wall of the reactor body and improve the overall mixing efficiency and production quality of the reactor.

[0004] The utility model solves the technical problem by adopting the following technical scheme: constructing a homogeneous polycarboxylic acid water-reducing agent reactor, comprising a reactor body, wherein a feed pipe, a first dripping pipe, a second dripping pipe, an observation window and a stirring rod extending into the reactor body are arranged on the top of the outer wall of the reactor body, a plurality of connecting columns are fixedly installed on the stirring rod, an annular auxiliary stirring ring is fixedly installed on one end of the connecting column away from the stirring rod, a plurality of pairs of stirring paddles are fixedly installed on the stirring rod from top to bottom, each pair of stirring paddles are arranged in a layout opposite to each other, and each pair of stirring paddles are distributed on the stirring rod in a three-dimensional spiral shape, a discharge pipe is fixedly installed in the center of the bottom of the outer wall of the reactor body, and a valve is installed on the discharge pipe.

[0005] According to the above scheme, two lower heating plates are symmetrically fixedly installed on the lower part of the outer side of the inner wall of the reactor body, and two upper heating plates are symmetrically fixedly installed on the middle part of the outer side of the inner wall of the reactor body.

[0006] According to the above scheme, a water inlet pipe is fixedly installed on one side of the bottom of the outer wall of the reactor body, a valve is installed on the surface of the water inlet pipe, and a water outlet pipe is fixedly installed on the upper side of the outer wall of the reactor body.

[0007] According to the above scheme, a plurality of first connecting blocks are welded to the lower end of the outer wall of the reactor, a plurality of supporting ears are welded to the lower outer side of the first connecting block, a plurality of weight sensors are connected below the supporting ears, the weight sensors are fixedly mounted on the base, the weight sensors are connected to the control panel through wires, a plurality of load-bearing columns are welded below the base, and the control panel is fixedly mounted on the upper part of one side of the base.

[0008] According to the above scheme, a plurality of temperature sensors are fixedly installed at the bottom, lower part and upper part of the outer side of the inner wall of the reactor body, and a plurality of temperature sensors are also fixedly installed on the stirring rod. The temperature sensors are connected to the control panel through wires.

[0009] According to the above scheme, a water pump is fixedly installed on the upper part of the base, and a connecting pipe is installed on the upper end of the water pump. The connecting pipe is fixedly installed on one side of the top of the outer wall of the reactor body, and extends into the reactor body to connect with the shunt pipe. The shunt pipe is annular, and a plurality of second connecting blocks are symmetrically distributed and fixedly welded on the surface of the shunt pipe. The second connecting block is fixedly installed on the upper end of the inner wall of the reactor body. A plurality of high-pressure nozzles are symmetrically distributed and fixedly installed on the surface of the shunt pipe. The high-pressure nozzles are all installed obliquely, and the water outlets of the high-pressure nozzles are all directed to the inner wall of the reactor body. In the homogeneous polycarboxylate water-reducing agent reactor described in the utility model.

[0010] The implementation of the homogeneous polycarboxylate water-reducing agent reactor of the utility model has the following beneficial effects:

[0011] 1. Through the combined action of the stirring paddle at the proximal end of the stirring rod and the auxiliary stirring ring at the distal end, the raw materials in the reactor are mixed more fully, especially the raw materials close to the inner wall and bottom of the reactor body can be effectively mixed, which improves the adhesion and solidification of the raw materials on the inner wall of the reactor body, effectively enhances the stirring efficiency of the stirring paddle, improves the production quality, and reduces the difficulty of cleaning the reactor; at the same time, multiple pairs of stirring paddles installed in a spiral shape from top to bottom of the stirring rod can ensure that the stirring rod is more evenly stressed, effectively extending the service life of the stirring paddle.

[0012] 2. Water is injected through the water inlet pipe at the bottom of the outer wall of the reactor body, so that the upper and lower sets of heating plates installed between the outer wall and the inner wall of the reactor body work in a water environment, making the heating process more gentle and less likely to cause local overtemperature, which is more conducive to maintaining the stability of raw material quality. At the same time, according to the production process and temperature control needs, multiple temperature sensors can be coordinated to adjust the heating conditions at any time, and it is possible to choose not to use or only use the lower heating plate / upper heating plate, or use both sets of heating plates at the same time. It effectively saves energy and improves heating efficiency. In addition, if low-temperature water is injected through the water inlet pipe at the bottom of the outer wall of the reactor body, the above reactor can also realize functions such as cooling and low-temperature reaction, further enhancing the multiple application functions of the equipment.

[0013] 3. The reactor body is equipped with a weight sensor, which can effectively simplify the weighing process of bulk raw materials such as polyether macromonomer and water, and improve production efficiency. And the staff can roughly judge whether the production process is safe and effective according to the weight change in the reactor and the process table parameters.

[0014] 4. The water is pumped into the connecting pipe under pressure, flows through the diversion pipe, and then rinses the inner wall of the reactor body through the high-pressure nozzle, which can effectively improve the cleaning efficiency of the reactor, shorten the equipment operation cycle, and ensure production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0016] Figure 1 It is a structural schematic diagram of the utility model homogeneous polycarboxylate water-reducing agent reaction kettle;

[0017] In the figure: 1. reactor body; 2. water pump; 3. connecting pipe; 4. diverter pipe; 5. high-pressure nozzle; 6. second connecting block; 7. fixing frame; 8. motor box; 9. motor; 10. stirring rod; 11. connecting column; 12. auxiliary stirring ring; 13. stirring paddle; 14. first connecting block; 15. supporting ear; 16. weight sensor; 17. base; 18. load-bearing column; 19. temperature sensor; 20. feed inlet pipe 21. observation window; 22. first dripping tube; 23. second dripping tube; 24. discharge pipe; 25. water inlet pipe; 26. water outlet pipe; 27. lower heating plate; 28. upper heating plate; 29. ​​control panel; inner wall 30 of reactor body; outer wall 31 of reactor body. DETAILED DESCRIPTION

[0018] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0019] like Figure 1 As shown, the present invention is a homogeneous polycarboxylate water-reducing agent reactor, comprising a reactor body 1, which is divided into a reactor body outer wall 30 and a reactor body outer wall 31. A feed pipe 20, a first dripping pipe 22, a second dripping pipe 23, an observation window 21 and a stirring rod 10 extending into the reactor body are fixedly installed on the top of the reactor body outer wall 31, a plurality of connecting columns 11 are fixedly installed on the surface of the stirring rod 10, and an annular auxiliary stirring ring 12 is fixedly installed on one end of the plurality of connecting columns 11 away from the stirring rod. At the same time, a plurality of pairs of stirring paddles 13 are fixedly installed in sequence from top to bottom on the stirring rod 10, and each pair of stirring paddles 13 are installed in a layout opposite to each other, and each pair of stirring paddles 13 are distributed on the stirring rod 10 in a three-dimensional spiral shape. A discharge pipe 24 is fixedly installed in the center of the bottom of the reactor body outer wall 31, and a valve is installed on the surface of the discharge pipe 24.

[0020] Two lower heating plates 27 are fixedly installed at the lower part of the outer side of the reactor body 30, and the two lower heating plates 27 are in relative positions. Two upper heating plates 28 are fixedly installed at the middle part of the outer side of the reactor body 30, and the two upper heating plates are in relative positions. The above four heating plates are symmetrically distributed in pairs in the top view of the reactor body 1. A water inlet pipe 25 is fixedly installed at one side of the bottom of the reactor body wall 31, and a valve is installed on the surface of the water inlet pipe 25. A water outlet pipe 26 is fixedly installed on the upper side of the reactor body wall 31.

[0021] A plurality of first connecting blocks 14 are welded to the lower end of the outer wall 31 of the reactor, a plurality of supporting ears 15 are welded to the outer sides below the plurality of first connecting blocks 14, a plurality of weight sensors 16 are connected to the lower sides of the plurality of supporting ears 15, the plurality of weight sensors 16 are fixedly mounted on a base 17, one end of the plurality of weight sensors 16 is connected to a control panel 29 via a wire, a plurality of load-bearing columns 18 are welded below the base 17, and the control panel 29 is fixedly mounted on the upper part of one side of the base 17.

[0022] A plurality of temperature sensors 19 are fixedly mounted on the bottom, lower part and upper part of the outer side of the inner wall 30 of the reactor body, and a plurality of temperature sensors 19 are also fixedly mounted on the stirring rod 10. One end of the plurality of temperature sensors 19 is connected to the control panel 29 through a wire.

[0023] A water pump 2 is fixedly installed on the upper part of the other side of the base 17 of the reactor, and a connecting pipe 3 is fixedly connected to the upper end of the water pump 2. The connecting pipe 3 is fixedly installed on one side of the top of the outer wall 31 of the reactor body, and extends into the reactor body 1 to be connected with the diversion pipe 4. The diversion pipe 4 is annular, and a plurality of second connecting blocks 6 are symmetrically distributed and fixedly welded on the surface of the diversion pipe 4, and a plurality of second connecting blocks 6 are fixedly installed on the upper end of the inner wall 30 of the reactor body. A plurality of high-pressure nozzles 5 are symmetrically distributed and fixedly installed on the surface of the diversion pipe 4, and the high-pressure nozzles 5 are all installed at an angle to ensure that the water outlets of the high-pressure nozzles 5 are all directed to the inner wall 30 of the reactor body.

[0024] When the utility model is used, water is fed into the reactor body 1 from the feed pipe 20, and the control panel 29 displays the weight data provided by the weight sensor 16 and the temperature sensor 19 and the temperature data of each part of the reactor body respectively. The polyether macromonomer is continuously fed from the feed pipe 20, and the motor 9 is started for stirring and mixing. The motor 9 drives the stirring rod 10 to rotate, so that the stirring rod 10 drives the stirring paddle 13 and the connecting column 11 to rotate, and the connecting column 11 drives the auxiliary stirring ring 12 to rotate. The stirring paddle 13 plays a good mixing role on the raw material liquid near the stirring paddle 13, and the auxiliary stirring ring 12 is far away from the stirring paddle 13 and close to the inner wall 30 of the reactor body, so as to make up for the insufficiency of the stirring effect of the stirring paddle 13, and fully stirs the raw material liquid near the inner wall 30 of the reactor body, which can prevent the local temperature from being too high or the raw material concentration from being too high to cause explosion, and on the other hand, reduce the phenomenon of raw materials adhering to the inner wall of the reactor body, which is more conducive to ensuring production quality and alleviating the difficulty of cleaning the reactor. The prepared different drop-adding liquids flow through the first drop-adding tube 22 and the second drop-adding tube 23 respectively into the reactor body 1 and are mixed into the raw material liquid to participate in the polymerization reaction. The finished product is discharged from the discharge pipe 24.

[0025] When heating is required, water is poured from the water inlet pipe 25 into the space between the inner wall 30 of the reactor body and the outer wall 31 of the reactor body, so that it is filled but not flowing out from the water outlet pipe 26, and the lower heating plate 27 and the upper heating plate 28 are turned on respectively. When the temperature reaches the process requirement as displayed on the control panel 29, the lower heating plate 27 and the upper heating plate 28 are turned off to complete the heating operation. By heating in a water bath, the temperature is more uniform and the temperature rise is relatively stable, which can avoid the temperature near the heating plate being too high, resulting in local raw material deterioration and gel production. When cooling is required, the excessive temperature in the reactor body 1 is controlled according to the temperature data in the reactor fed back to the control panel by the temperature sensors 19 at various locations, and cold water is poured in through the water inlet pipe 25. The cold water flows through various places between the inner wall 30 of the reactor body and the outer wall 31 of the reactor body, and flows out from the water outlet pipe 26 after completing the heat exchange. When the temperature reaches the process requirement as displayed on the control panel 29, the cold water is stopped from being poured in from the water inlet pipe 25 to complete the cooling operation.

[0026] After the production discharge is completed, the water pump 2 is turned on, and the water enters the diversion pipe 4 through the connecting pipe 3, and then rinses the inner wall 30 of the reactor body through the high-pressure nozzle. After the flushing is completed, the water is discharged through the discharge pipe 24.

[0027] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A homogeneous polycarboxylate water-reducing agent reactor, comprising a reactor body, characterized in that: A feed pipe, a first dropping tube, a second dropping tube, an observation window and a stirring rod extending into the reaction kettle body are provided on the top of the outer wall of the reaction kettle body, a plurality of connecting columns are fixedly installed on the stirring rod, an annular auxiliary stirring ring is fixedly installed on one end of the connecting column away from the stirring rod, a plurality of pairs of stirring paddles are fixedly installed on the stirring rod from top to bottom, each pair of stirring paddles are installed in a layout opposite to each other, and each pair of stirring paddles are distributed on the stirring rod in a three-dimensional spiral shape, a discharge pipe is fixedly installed in the center of the bottom of the outer wall of the reaction kettle body, and a valve is installed on the discharge pipe.

2. The homogeneous polycarboxylate water-reducing agent reaction kettle according to claim 1, characterized in that: Two lower heating plates are symmetrically fixedly installed at the lower part of the outer side of the inner wall of the reactor body, and two upper heating plates are symmetrically fixedly installed at the middle part of the outer side of the inner wall of the reactor body.

3. The homogeneous polycarboxylate water-reducing agent reaction kettle according to claim 1, characterized in that: A water inlet pipe is fixedly installed on one side of the bottom of the outer wall of the reactor body, a valve is installed on the surface of the water inlet pipe, and a water outlet pipe is fixedly installed on the upper side of the outer wall of the reactor body.

4. The homogeneous polycarboxylate water-reducing agent reaction kettle according to claim 1, characterized in that: A plurality of first connecting blocks are welded to the lower end of the outer wall of the reactor, a plurality of supporting ears are welded to the lower outer side of the first connecting blocks, a plurality of weight sensors are connected below the supporting ears, the weight sensors are fixedly mounted on the base, the weight sensors are connected to the control panel via wires, a plurality of load-bearing columns are welded below the base, and the control panel is fixedly mounted on the upper part of one side of the base.

5. The homogeneous polycarboxylate water-reducing agent reaction kettle according to claim 1, characterized in that: A plurality of temperature sensors are fixedly mounted on the bottom, lower part and upper part of the outer side of the inner wall of the reactor body, and a plurality of temperature sensors are also fixedly mounted on the stirring rod. The temperature sensors are connected to the control panel through wires.

6. The homogeneous polycarboxylate water-reducing agent reaction kettle according to claim 4, characterized in that: A water pump is fixedly installed on the upper part of the base, and a connecting pipe is installed on the upper end of the water pump. The connecting pipe is fixedly installed on one side of the top of the outer wall of the reactor body, and extends into the reactor body to be connected with the diversion pipe. The diversion pipe is circular, and a plurality of second connecting blocks are symmetrically distributed and fixedly welded on the surface of the diversion pipe. The second connecting blocks are fixedly installed on the upper end of the inner wall of the reactor body. A plurality of high-pressure nozzles are symmetrically distributed and fixedly installed on the surface of the diversion pipe. The high-pressure nozzles are all installed at an angle, and the water outlets of the high-pressure nozzles are all directed to the inner wall of the reactor body.

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