A polycarboxylate water reducer reaction device

Abstract

The present invention discloses a reaction device for polycarboxylate water reducer, which relates to the technical field of polycarboxylate water reducer preparation. It includes a reaction kettle, multiple support legs are fixed at the bottom of the reaction kettle, a dropping pipe communicating with its interior is installed at the top of the reaction kettle, a stirring mechanism is arranged inside the reaction kettle, a discharge pipe communicating with it is arranged on one side of the reaction kettle near the bottom, the discharge pipe is connected to an external storage tank through a pump body, a feeding structure is arranged at the center of the bottom of the reaction kettle, a ball valve is arranged on the feeding structure, a detection plate is also installed on the reaction kettle body, a bracket is installed at the top of the detection plate, and a holding cylinder located directly below the feeding structure is arranged on the bracket. The present invention can detect the polycarboxylate water reducer in the reaction kettle at the bottom of the kettle. If it is qualified, it is transported to the storage tank through the pump body. If it is unqualified, it continues to react or is stored in a non-conforming product storage tank for treatment. This can effectively avoid the problem of directly pumping unqualified products into the storage tank, thereby avoiding the problem of wasting materials.

Description

Technical Field

[0001] The present invention relates to the technical field of polycarboxylate superplasticizer preparation, and specifically relates to a reaction device for polycarboxylate superplasticizer. Background Art

[0002] Polycarboxylate superplasticizer is an essential concrete admixture that can determine the hardness of concrete. The existing reaction devices for polycarboxylate superplasticizer mainly include a reaction kettle. Multiple support legs are fixed at the bottom of the reaction kettle. A drip pipe communicating with its interior is installed at the top of the reaction kettle. A stirring mechanism is arranged inside the reaction kettle. The stirring mechanism includes a motor installed at the top of the stirring kettle. The output shaft of the motor rotates and extends into the stirring kettle and is fixed with a stirring rod. Stirring blades are fixed on the stirring rod. A discharge pipe communicating with the reaction kettle is arranged on one side near the bottom of the reaction kettle. The discharge pipe is connected to an external storage tank through a pump body.

[0003] In actual operation, after the polycarboxylate superplasticizer is prepared in the reaction kettle, it will be directly pumped into the storage tank from the discharge pipe through the pump body. There is no structure for detecting the finished polycarboxylate superplasticizer. If the finished polycarboxylate superplasticizer is unqualified and is directly pumped into the storage tank in its entirety, it will cause a large amount of material waste.

[0004] Based on the above reasons, it is necessary for us to design a reaction device for polycarboxylate superplasticizer with a detection structure to meet the above requirements. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a reaction device for polycarboxylate superplasticizer, which solves the problem that the existing reaction devices for polycarboxylate superplasticizer do not have a structure for detecting the finished polycarboxylate superplasticizer.

[0006] To achieve the above purposes, the present invention is realized through the following technical solutions:

[0007] A reaction device for polycarboxylate superplasticizer includes a reaction kettle. Multiple support legs are fixed at the bottom of the reaction kettle. A drip pipe communicating with its interior is installed at the top of the reaction kettle. A stirring mechanism is arranged inside the reaction kettle. A discharge pipe communicating with the reaction kettle is arranged on one side near the bottom of the reaction kettle. The discharge pipe is connected to an external storage tank through a pump body.

[0008] The main difference design of the present invention compared with the prior art is that: a feeding structure is arranged at the center of the bottom of the reaction kettle. A ball valve is arranged on the feeding structure. A detachable detection plate is also installed on the kettle body of the reaction kettle. A support is installed at the top near the edge of the detection plate. A holding cylinder that can move up and down is arranged on the support. The holding cylinder has openings at both the upper and lower ends. The upper opening of the holding cylinder is located directly below the feeding structure.

[0009] Specifically in the present invention, the feeding structure includes an inverted trapezoidal block and a measuring cylinder. The measuring cylinder has openings at both the upper and lower ends. The inverted trapezoidal block is fixed to the upper end of the measuring cylinder to block the upper opening, and the ball valve is installed at the lower end of the measuring cylinder to block the lower opening. A through hole one and a through hole two are successively opened from top to bottom at the bottom of the stirring kettle. The through hole one is matched with the inverted trapezoidal block, and the through hole two is screwed with the outer surface of the upper end of the measuring cylinder. A feed port is provided on the side wall of the measuring cylinder near its upper end.

[0010] To achieve the disassembly and assembly of the detection plate, two connecting rods arranged left and right are fixed to the bottom of the stirring kettle. A slider is fixed to the lower end of the connecting rod. A fixed block is fixed on both sides of the detection plate. A dovetail groove penetrating through the front and back is provided on the fixed block, and the dovetail groove is matched with the slider.

[0011] To lock the fixed block on the connecting rod, a bolt is vertically screwed at the bottom of the fixed block, and the bolt head abuts upward against the surface of the slider.

[0012] To prevent the cement slurry from flowing to the edge of the detection plate and falling on the ground to affect the environment, a circular groove is provided on the upper surface of the detection plate.

[0013] In the present invention, the bracket is an inverted U-shaped frame. The two legs of the bracket are fixed to the detection plate. The storage cylinder is installed on the top plate of the bracket. A threaded hole penetrating through the upper and lower parts is provided at the center of the top plate of the bracket. An external thread for screwing it into the threaded hole is provided on the outer surface of the storage cylinder near its upper end. After the storage cylinder is moved upward, it can be locked on the bracket to maintain stability.

[0014] To more intuitively observe the degree of flow of the cement slurry, observation slots are provided on both sides of the top plate of the bracket.

[0015] To facilitate the discharge of waste on the detection plate, a scraper is fixed to the outer surface of the storage cylinder near its lower end. A leakage hole is provided on the upper surface of the detection plate and is blocked by a plug.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the measuring cylinder is rotated upward in the present invention, the inverted trapezoidal block no longer blocks the through hole one, and the finished polycarboxylate superplasticizer in the stirring kettle will enter the measuring cylinder through the feed port and then pass through the ball valve, so that the amount of polycarboxylate superplasticizer added to the cement slurry on the detection plate can be controlled, making the detection more accurate.

[0018] 2. In the present invention, cement slurry is added into the storage cylinder, and then polycarboxylate superplasticizer is added and mixed. The storage cylinder is rotated upward to make the mixed liquid flow and spread on the detection plate, and the flow performance of the cement slurry after adding polycarboxylate superplasticizer is detected.

[0019] 3. After the polycarboxylate water reducer is detected by the present invention, rotate the storage cylinder downward so that its lower end abuts against the detection plate. Rotate the storage cylinder to drive the scraping plate to rotate on the detection plate. Remove the plug, so that the scraping plate can discharge the waste from the material leakage hole for recycling, ensuring the cleanliness of the detection plate.

[0020] Finally, the present invention can detect the polycarboxylate water reducer at the bottom of the reaction kettle. If it is qualified, it is transported to the storage tank through the pump body. If it is unqualified, it continues to react or is stored in the unqualified product storage tank for treatment. This can effectively avoid the problem of directly pumping unqualified products into the storage tank, thereby avoiding the problem of wasting materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a partial cross-sectional view of the front view of the present invention;

[0022] Figure 2 For the present invention Figure 1 is an enlarged view at A in

[0023] Figure 3 is a structural schematic diagram of the inverted trapezoidal block and the measuring cylinder of the present invention Figure 1 ;

[0024] Figure 4 is a structural schematic diagram of the inverted trapezoidal block and the measuring cylinder of the present invention Figure 2 ;

[0025] Figure 5 is a structural schematic diagram of the detection plate of the present invention;

[0026] Figure 6 is a partial exploded view of the present invention;

[0027] Figure 7 is a cross-sectional view of the front view of the detection plate of the present invention.

[0028] Reference numerals: 1. Reaction kettle; 2. Support leg; 3. Drip pipe; 4. Discharge pipe; 5. Ball valve; 6. Detection plate; 7. Bracket; 8. Storage cylinder; 9. Inverted trapezoidal block; 10. Measuring cylinder; 11. Feed inlet; 12. Connecting rod; 13. Slide block; 14. Fixed block; 15. Tank body; 16. Observation notch; 17. Scraping plate; 18. Plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] As Figure 1As shown in the figure, the present invention provides a reaction device for polycarboxylate water reducer, which includes a reaction kettle 1. Multiple support legs 2 are fixed at the bottom of the reaction kettle 1. A dropping pipe 3 communicating with its interior is installed at the top of the reaction kettle 1. A stirring mechanism is arranged inside the reaction kettle 1. An outlet pipe 4 communicating with it is arranged on one side of the reaction kettle 1 close to the bottom. The outlet pipe 4 is connected to an external storage tank through a pump body. The above structures and raw materials are all prior arts, and the specific reaction principle will not be elaborated in the present invention.

[0031] As Figure 1 、 Figure 2 shown in the figure, compared with the prior art, the most important differential design of the present invention is that: a feeding structure is arranged at the center of the bottom of the reaction kettle 1. A ball valve 5 is arranged on the feeding structure. A detachable detection plate 6 is also installed on the kettle body of the reaction kettle 1. A bracket 7 is installed at the top of the detection plate 6 close to its edge. A containing cylinder 8 capable of moving up and down is arranged on the bracket 7. The containing cylinder 8 has openings at both the upper and lower ends. The upper opening of the containing cylinder 8 is located directly below the feeding structure.

[0032] As Figure 2 、 Figure 3 、 Figure 4 shown in the figure, specifically in the present invention, the feeding structure includes an inverted trapezoidal block 9 and a measuring cylinder 10. The measuring cylinder 10 has openings at both the upper and lower ends. The inverted trapezoidal block 9 is fixed at the upper end of the measuring cylinder 10 to block the upper opening. The ball valve 5 is installed at the lower end of the measuring cylinder 10 to block the lower opening. A through hole one and a through hole two are successively opened from top to bottom at the bottom of the stirring kettle. The through hole one is matched with the inverted trapezoidal block 9, and the through hole two is screwed with the outer surface of the upper end of the measuring cylinder 10, which is a thread fit here. A feed port 11 is arranged on the side wall of the measuring cylinder 10 close to its upper end. When the measuring cylinder 10 is rotated upward, the inverted trapezoidal block 9 no longer blocks the through hole one, and the finished polycarboxylate water reducer in the stirring kettle will enter the measuring cylinder 10 through the feed port 11 and then pass through the ball valve 5, so as to control the amount of polycarboxylate water reducer added to the cement slurry on the detection plate 6, making the detection more accurate.

[0033] As Figure 1 、 Figure 5 shown in the figure, in order to realize the disassembly and assembly of the detection plate 6, two connecting rods 12 arranged left and right are fixed at the bottom of the stirring kettle. A slider 13 is fixed at the lower end of the connecting rod 12. A fixing block 14 is fixed on both sides of the detection plate 6. A dovetail groove penetrating through the front and back is opened on the fixing block 14, and the dovetail groove is matched with the slider 13.

[0034] As Figure 1As shown, in order to lock the fixing block 14 onto the connecting rod 12, a bolt is vertically screwed into the bottom of the fixing block 14. The head of the bolt abuts upward against the surface of the slider 13. Unscrewing the bolt allows the fixing block 14 to slide at the lower end of the connecting rod 12, enabling the removal of the detection plate 6. Conversely, sliding the fixing block 14 onto the connecting rod 12 and rotating the bolt upward until the head of the bolt abuts against the surface of the slider 13 locks the fixing block 14 and thus locks the detection plate 6.

[0035] As Figure 5 , Figure 6 , Figure 7 shown, to prevent the cement slurry from flowing towards the edge of the detection plate 6 and falling onto the ground, which may affect the environment, a circular groove 15 is provided on the upper surface of the detection plate 6. Pour the cement slurry into the holding cylinder 8, then add the polycarboxylate water reducer and mix. Rotate the holding cylinder 8 upward to allow the mixed liquid to flow and spread on the detection plate 6, and test the flowability of the cement slurry after adding the polycarboxylate water reducer.

[0036] As Figure 5 , Figure 6 shown, in the present invention, the bracket 7 is an inverted U-shaped frame. The two legs of the bracket 7 are fixed to the detection plate 6, and the holding cylinder 8 is installed on the top plate of the bracket 7. A threaded hole penetrating up and down is provided at the center of the top plate of the bracket 7. The outer surface of the holding cylinder 8 near its upper end is provided with an external thread for screwing it into the threaded hole. After the holding cylinder 8 is lifted, it can be locked onto the bracket 7 to maintain stability.

[0037] As Figure 6 shown, in order to more intuitively observe the degree of flow of the cement slurry, observation slots 16 are provided on both sides of the top plate of the bracket 7. By directly looking into the observation slots 16 with the eyes, the degree of diffusion of the cement slurry can be observed. If more precision is desired, scale lines can be set on the top plate of the bracket 7. The scale lines are parallel to the observation slots 16, making it more intuitive to calculate the degree of diffusion of the cement slurry.

[0038] As Figure 7 shown, to facilitate the discharge of waste materials on the detection plate 6, a scraper 17 is fixed to the outer surface of the holding cylinder 8 near its lower end. A leakage hole is provided on the upper surface of the detection plate 6 and is blocked by a plug 18. Here, the plug 18 can be a bolt or a rubber plug, as long as it can block the leakage hole. After testing the polycarboxylate water reducer, rotate the holding cylinder 8 downward so that its lower end abuts against the detection plate 6. Rotate the holding cylinder 8 to drive the scraper 17 to rotate on the detection plate 6. Remove the plug 18, and the scraper 17 can then discharge the waste materials from the leakage hole for recycling, ensuring the cleanliness of the detection plate 6.

[0039] The working principle is as follows: the raw material is added from the drip tube 3, the motor of the stirring mechanism is started, and the stirring blade in the stirring kettle is driven to rotate to react. After the reaction is completed, the measuring cylinder 10 is rotated upward. At this time, the inverted trapezoidal block 9 no longer blocks the through hole 1, and the feed port 11 on the measuring cylinder 10 enters the through hole 1. The finished polycarboxylate water-reducing agent in the stirring kettle also enters the through hole 1 and flows into the measuring cylinder 10 from the feed port 11. When the measuring cylinder 10 is full of polycarboxylate water-reducing agent, the measuring cylinder 10 is rotated downward until the inverted trapezoidal block 9 is blocked in the through hole 1 again;

[0040] Then rotate the holding cylinder 8 downward until the lower end of the holding cylinder 8 abuts against the detection plate 6, add cement slurry from the upper end of the holding cylinder 8 until the holding cylinder 8 is nearly full, and then turn the ball valve 5 according to demand, drip the finished polycarboxylate water reducer into the holding cylinder 8, and then stir the mixture evenly with a stirring rod. The ball valve 5 and the measuring cylinder 10 can well control the amount of the finished polycarboxylate water reducer added to the holding cylinder 8;

[0041] After adding, close the ball valve 5, rotate the holding tube 8 upward until the external thread on the holding tube 8 is screwed into the threaded hole on the bracket 7, and stop rotating the holding tube 8. At this time, the mixture of the finished polycarboxylate water-reducing agent and cement slurry will flow around the detection plate 6. By observing the notch 16, the diffusion degree of the cement slurry can be observed.

[0042] After the detection is completed, the holding tube 8 is rotated downward until the lower end of the holding tube 8 is against the detection plate 6, and the holding tube 8 is continued to be rotated, so that the scraper 17 can be driven to rotate, and the plug 18 can be pulled out from the leakage hole. With the rotation of the scraper 17, the waste can be scraped out of the leakage hole and recovered. It should be noted here that the lower end of the holding tube 8 can be provided with an inverted truncated cone shape, so that the contact area between the lower end of the holding tube 8 and the detection plate 6 is very small, so that when cleaning the waste, it will be more thorough;

[0043] If it is necessary to thoroughly clean the detection plate 6, the bolts are unscrewed from the fixing block 14, so that the fixing block 14 can slide along the slider 13 until it is detached from the slider 13, thereby realizing the disassembly of the detection plate 6. After the detection plate 6 is cleaned, the fixing block 14 is slid onto the slider 13 and locked with bolts. Alternatively, the detection plate 6 can be cleaned by directly spraying water on the detection plate 6 without disassembling the detection plate 6, rotating the containing tube 8, and driving the scraper 17 to rotate.

[0044] Finally, the most important contribution of the present invention relative to the prior art is: Finally, the present invention can detect the polycarboxylate water-reducing agent in the reactor 1 at the bottom of the reactor. If it is qualified, it is transported to the storage tank through the pump body. If it is unqualified, the reaction continues, or it is stored in the unqualified product storage tank for processing. This can effectively avoid the problem of unqualified products being directly pumped into the storage tank, thereby avoiding the problem of wasting materials.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polycarboxylate water reducer reaction device, comprising a reaction kettle, multiple support legs are fixed at the bottom of the reaction kettle, a dropping pipe communicating with its interior is installed at the top of the reaction kettle, a stirring mechanism is arranged inside the reaction kettle, a discharge pipe communicating with it is arranged on one side of the reaction kettle near the bottom, and the discharge pipe is connected to an external storage tank through a pump body; It is characterized in that: A feeding structure is arranged at the center of the bottom of the reactor. A ball valve is arranged on the feeding structure. A detachable detection plate is also installed on the reactor body. A bracket is installed at the top near the edge of the detection plate. A holding cylinder capable of moving up and down is arranged on the bracket. The holding cylinder has openings at both the upper and lower ends, and the upper opening of the holding cylinder is located directly below the feeding structure.

2. The polycarboxylate water reducer reaction device according to claim 1, characterized in that: The feeding structure includes an inverted trapezoidal block and a measuring cylinder. The measuring cylinder has openings at both the upper and lower ends. The inverted trapezoidal block is fixed at the upper end of the measuring cylinder to block the upper opening. The ball valve is installed at the lower end of the measuring cylinder to block the lower opening. A through hole one and a through hole two are successively formed from top to bottom on the bottom of the stirring kettle. The through hole one is matched with the inverted trapezoidal block, and the through hole two is screwed with the outer surface of the upper end of the measuring cylinder. A feed port is formed on the side wall of the measuring cylinder near its upper end.

3. The polycarboxylate water reducer reaction device according to claim 1, characterized in that: Two connecting rods arranged left and right are fixed to the bottom of the reactor. A slider is fixed to the lower end of the connecting rod. A fixing block is fixed to each side of the detection plate. A dovetail groove penetrating through from front to back is formed on the fixing block, and the dovetail groove is matched with the slider.

4. The polycarboxylate water reducer reaction device according to claim 3, characterized in that: A bolt is vertically screwed to the bottom of the fixing block, and the bolt head abuts upward against the surface of the slider.

5. The polycarboxylate water reducer reaction device according to claim 1, characterized in that: A circular groove is formed on the upper surface of the detection plate.

6. The polycarboxylate water reducer reaction device according to claim 1, characterized in that: The bracket is an inverted U-shaped frame. The two legs of the bracket are fixed to the detection plate, and the holding cylinder is installed on the top plate of the bracket.

7. The polycarboxylate water reducer reaction device according to claim 6, characterized in that: A threaded hole penetrating through from top to bottom is formed at the center of the top plate of the bracket. An external thread for screwing it into the threaded hole is provided on the outer surface of the holding cylinder near its upper end.

8. The polycarboxylate water reducer reaction device according to claim 7, characterized in that: Observation slots are formed on both sides of the top plate of the bracket.

9. The polycarboxylate water reducer reaction device according to claim 8, characterized in that: A scraper is fixed to the outer surface of the holding cylinder near its lower end. A leakage hole is formed on the upper surface of the detection plate and is blocked by a plug.

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