A polycarboxylate water reducer testing device

Abstract

The present invention discloses a polycarboxylate superplasticizer detection device, which relates to the technical field of polycarboxylate superplasticizers. It includes a detection bottom plate and a bracket. The feet of the bracket are fixed on the upper surface of the detection bottom plate. A polycarboxylate superplasticizer concentration detection probe and a polycarboxylate superplasticizer viscosity detection sensor are respectively connected to the top rod of the bracket through telescopic frames. A vertically adjustable holding tray is installed between the two feet of the bracket. A discharge pipe extending downward is provided at the center of the bottom of the holding tray. Both the polycarboxylate superplasticizer concentration detection probe and the polycarboxylate superplasticizer viscosity detection sensor extend into the holding tray. A frustum circular mold is placed at the center of the upper surface of the bottom plate. The upper end of the frustum circular mold is closed and the lower end is open. A plurality of equally spaced feed ports are provided on the side wall of the frustum circular mold near its upper end, and the feed ports are covered by the pipe wall of the discharge pipe. The present invention can perform various detections on polycarboxylate superplasticizers, and each detection is carried out in sequence without mutual influence, with higher practicability and can be widely promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of polycarboxylate water reducers, and specifically to a detection device for polycarboxylate water reducers. Background Art

[0002] Polycarboxylate water reducer is a very common material in the construction field nowadays. It is usually mixed with mortar. Generally, after the polycarboxylate water reducer is prepared, a series of tests need to be carried out on it, such as concentration, viscosity, pH value, solid residue content, fluidity of the mixed slurry after mixing with mortar, and so on.

[0003] However, the existing detection devices are relatively single. For example, for concentration detection, a concentration monitoring probe is used, and for viscosity detection, a viscosity sensor is used. There is no device that can perform multiple detections on polycarboxylate water reducers. Therefore, it is necessary to improve the existing detection equipment to meet the above requirements. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a detection device for polycarboxylate water reducers, which solves the problem of the single detection function of the existing polycarboxylate water reducer detection equipment.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0006] A detection device for polycarboxylate water reducers includes a detection base plate and an inverted U-shaped bracket. The feet of the bracket are fixed on the upper surface of the detection base plate. A polycarboxylate water reducer concentration detection probe and a polycarboxylate water reducer viscosity detection sensor are respectively connected to the top rod of the bracket through telescopic frames, and can detect the concentration and viscosity of the polycarboxylate water reducer.

[0007] A vertically adjustable holding tray is installed between the two feet of the bracket. A discharge pipe extends downward from the center of the bottom of the holding tray. The polycarboxylate water reducer concentration detection probe and the polycarboxylate water reducer viscosity detection sensor both extend into the holding tray. The round rod rotates, driving the connecting rod, the polycarboxylate water reducer concentration detection probe and the polycarboxylate water reducer viscosity detection sensor to rotate, acting as a stirring rod to stir the mixed slurry of the polycarboxylate water reducer and mortar, making the reaction of the mixed slurry more sufficient and uniform.

[0008] A truncated cone mold is placed at the center of the upper surface of the base plate. The upper end of the truncated cone mold is closed and the lower end is open. A plurality of equally spaced feed ports are opened on the side wall of the truncated cone mold near its upper end. The feed ports are covered by the pipe wall of the discharge pipe. When the holding tray moves downward, the mixed slurry flows into the truncated cone mold from the feed ports. When the holding tray moves upward, it drives the truncated cone mold to move upward, and the mixed slurry in the truncated cone mold flows onto the detection base plate for diffusion. The above structure cooperation can detect the fluidity of the mixed slurry.

[0009] In the present invention, the telescopic frame specifically includes a circular through hole opened on the top rod of the bracket. A round rod is vertically slidably installed in the circular through hole. A stop plate is fixed to the upper end of the round rod, and the lower end of the round rod extends into the inner side of the bracket and is fixed with a connecting plate. A connecting rod is fixed to the lower plate surface at both ends of the connecting plate. The polycarboxylate superplasticizer concentration detection probe and the polycarboxylate superplasticizer viscosity detection sensor are respectively installed at the lower ends of the two connecting rods.

[0010] In order to enable the stop plate to return upward, a compression spring is arranged between the stop plate and the top rod of the bracket, and the compression spring is sleeved on the round rod.

[0011] To realize the up and down adjustment of the storage tray, two ear plates arranged symmetrically left and right are fixed on the outer side of the storage tray. A sliding hole is opened on the ear plate, and the sliding hole is slidably matched with the support leg of the bracket. An adjusting member is arranged on the support leg of the bracket, and the adjusting member abuts against the bottom plate of the ear plate.

[0012] To realize the locking after the up and down adjustment of the storage tray, an external thread is provided on the outer surface of the support leg of the bracket, and the adjusting member is a nut, and the nut is screwed on the support leg of the bracket.

[0013] Specifically in the present invention, the bottom plate of the storage tray close to the discharge pipe is arranged to slope downward, so that the mixed slurry can flow into the truncated cone mold more smoothly.

[0014] To realize the control of the material in the storage tray to enter the truncated cone mold when the storage tray moves downward, and the control of the material in the truncated cone mold to flow on the detection bottom plate when the storage tray moves upward, a lapping ring is formed by the upper end of the truncated cone mold extending outward, and the lapping ring is lapped on the bottom plate of the storage tray close to the discharge pipe.

[0015] To measure the fluidity of the mixed slurry more conveniently, four scale marks arranged in a circular array are provided on the upper plate surface of the detection bottom plate.

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

[0017] The present invention can detect the concentration, viscosity of the polycarboxylate superplasticizer and the fluidity after mixing with mortar, and has multiple detections, making the whole device multifunctional.

[0018] After detecting the concentration and viscosity of the polycarboxylate superplasticizer in the present invention, rotate the round rod to drive the connecting rod, the polycarboxylate superplasticizer concentration detection probe and the polycarboxylate superplasticizer viscosity detection sensor to rotate, acting as a stirring rod to stir the mixed slurry of the polycarboxylate superplasticizer and mortar, so that the reaction of the mixed slurry is more sufficient and uniform.

[0019] The present invention adjusts the placing tray downward, and the mixed slurry flows into the truncated cone mold from the feed port. Then, it adjusts the placing tray upward to drive the truncated cone mold to move upward. The mixed slurry in the truncated cone mold flows onto the detection bottom plate for diffusion, and the fluidity of the mixed slurry is detected through the scale markings.

[0020] Finally, the present invention can perform various detections on the polycarboxylate superplasticizer, and each detection is carried out in sequence without mutual influence, with higher practicality and can be widely promoted. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 For the present invention Figure 1 The enlarged view at A in;

[0023] Figure 3 It is the three-dimensional Figure 1 ;

[0024] Figure 4 It is the three-dimensional Figure 2 ;

[0025] Figure 5 It is the top view of the detection bottom plate of the present invention;

[0026] Figure 6 It is the three-dimensional view of the telescopic frame of the present invention;

[0027] Figure 7 It is the three-dimensional view of the placing tray and the truncated cone mold of the present invention;

[0028] Figure 8 It is the front view of the connecting rod of the present invention.

[0029] Reference numerals: 1, detection bottom plate; 2, bracket; 3, polycarboxylate superplasticizer concentration detection probe; 4, polycarboxylate superplasticizer viscosity detection sensor; 5, placing tray; 6, discharge pipe; 7, truncated cone mold; 8, feed port; 9, round rod; 10, stop baffle; 11, connecting plate; 12, connecting rod; 13, pressing spring; 14, ear plate; 15, adjusting member; 16, overlapping ring; 17, scale markings. DETAILED DESCRIPTION OF THE INVENTION

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Such as Figure 1 , Figure 3 , Figure 6As shown in the figure, the present invention provides a polycarboxylate water reducing agent detection device, which includes a detection bottom plate 1 and an inverted U-shaped bracket 2. The feet of the bracket 2 are fixed on the upper surface of the detection bottom plate 1. On the top rod of the bracket 2, a polycarboxylate water reducing agent concentration detection probe 3 and a polycarboxylate water reducing agent viscosity detection sensor 4 are respectively connected through a telescopic frame. The working principles of both are prior arts, and both are powered by an external power supply, and the data is displayed on an external display screen. The more detailed principles are not elaborated in the present invention. The concentration and viscosity of the polycarboxylate water reducing agent can be detected.

[0032] As Figure 1 , Figure 3 , Figure 4 As shown in the figure, a vertically adjustable holding tray 5 is installed between the two feet of the bracket 2. At the center of the bottom plate of the holding tray 5, a discharge pipe 6 extends downward. The polycarboxylate water reducing agent concentration detection probe 3 and the polycarboxylate water reducing agent viscosity detection sensor 4 both extend into the holding tray 5. The round rod 9 rotates, driving the connecting rod 12, the polycarboxylate water reducing agent concentration detection probe 3 and the polycarboxylate water reducing agent viscosity detection sensor 4 to rotate, acting as a stirring rod to stir the mixed slurry of the polycarboxylate water reducing agent and the mortar, making the reaction of the mixed slurry more sufficient and uniform.

[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown in the figure, a truncated cone mold 7 is placed at the center of the upper surface of the bottom plate. The truncated cone mold 7 is closed at the upper end and open at the lower end. A plurality of equally spaced feed ports 8 are opened on the side wall of the truncated cone mold 7 near its upper end. The feed ports 8 are covered by the pipe wall of the discharge pipe 6. The holding tray 5 moves downward, and the mixed slurry flows into the truncated cone mold 7 from the feed ports 8. The holding tray 5 moves upward, driving the truncated cone mold 7 to move upward. The mixed slurry in the truncated cone mold 7 flows onto the detection bottom plate 1 for diffusion. With the cooperation of the above structures, the fluidity of the mixed slurry can be detected.

[0034] As Figure 1 , Figure 3 , Figure 4 , Figure 6 As shown in the figure, in the present invention, the telescopic frame specifically includes a circular through hole opened on the top rod of the bracket 2. A round rod 9 is vertically slidably installed in the circular through hole. A stop baffle 10 is fixed at the upper end of the round rod 9. The lower end of the round rod 9 extends into the inner side of the bracket 2 and is fixed with a connecting plate 11. One connecting rod 12 is fixed on the lower plate surface at both ends of the connecting plate 11. The polycarboxylate water reducing agent concentration detection probe 3 and the polycarboxylate water reducing agent viscosity detection sensor 4 are respectively installed at the lower ends of the two connecting rods 12. In order to enable the stop baffle 10 to return upward, a pressing spring 13 is arranged between the stop baffle 10 and the top rod of the bracket 2. The pressing spring 13 is sleeved on the round rod 9.

[0035] As Figure 1 , Figure 3 ,Figure 4 , Figure 7 As shown in Figure 7 , to achieve the up-and-down adjustment of the holding tray 5, two symmetrically arranged ear plates 14 are fixed on the outer side of the holding tray 5. Slide holes are provided in the ear plates 14, and the slide holes are in sliding fit with the supporting feet of the bracket 2. An adjusting member 15 is provided on the supporting feet of the bracket 2, and the adjusting member 15 abuts against the bottom of the ear plate 14. To lock the holding tray 5 after up-and-down adjustment, an external thread is provided on the outer surface of the supporting feet of the bracket 2, and the adjusting member 15 is a nut, which is screwed onto the supporting feet of the bracket 2. When adjusting the holding tray 5 downward, the mixed slurry flows into the truncated cone mold 7 from the feed port 8. When adjusting the holding tray 5 upward, the truncated cone mold 7 is driven to move upward, and the mixed slurry in the truncated cone mold 7 flows onto the detection bottom plate 1 and spreads. Through the scale markings 17, the fluidity of the mixed slurry is detected.

[0036] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 Specifically in the present invention, the bottom of the holding tray 5 close to the discharge pipe 6 is arranged to slope downward, so that the mixed slurry can slide smoothly and then flow into the truncated cone mold 7 more smoothly.

[0037] As Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown in Figure 7 , to control the material in the holding tray 5 to enter the truncated cone mold 7 when the holding tray 5 moves downward and control the material in the truncated cone mold 7 to flow on the detection bottom plate 1 when the holding tray 5 moves upward, a lapping ring 16 is formed by extending the upper end of the truncated cone mold 7 outward, and the lapping ring 16 is lapped at the bottom of the holding tray 5 close to the discharge pipe 6.

[0038] As Figure 5 As shown in Figure 5 , to measure the fluidity of the mixed slurry more conveniently, four scale markings 17 arranged in a circular array are provided on the upper plate surface of the detection bottom plate 1. After the mixed slurry spreads, the size after spreading can be directly measured through the scale markings 17, and the fluidity can be calculated. Compared with the method of the staff holding a ruler to measure in the prior art, it is more convenient and more accurate.

[0039] During operation;

[0040] First step: Pour the polycarboxylate superplasticizer into the holding tray 5 until the polycarboxylate superplasticizer submerges the polycarboxylate superplasticizer concentration detection probe 3 and the polycarboxylate superplasticizer viscosity detection sensor 4. At this time, the polycarboxylate superplasticizer concentration detection probe 3 and the polycarboxylate superplasticizer viscosity detection sensor 4 work to detect the concentration and viscosity of the polycarboxylate superplasticizer;

[0041] Step 2: After the concentration and viscosity of the polycarboxylate water reducer are detected, add mortar to the storage tray 5, and then rotate the stop baffle 10 to drive the rotation of the round rod 9, connecting plate 11, connecting rod 12, polycarboxylate water reducer concentration detection probe 3, and polycarboxylate water reducer viscosity detection sensor 4, acting as a stirring rod to stir the polycarboxylate water reducer and mortar. As Figure 8 shown, here, a protective sleeve with an open lower end can be screwed onto both connecting rods 12. The protective sleeve is sleeved outside the polycarboxylate water reducer concentration detection probe 3 and the polycarboxylate water reducer viscosity detection sensor 4. During detection, rotate the protective sleeve upward to expose the polycarboxylate water reducer concentration detection probe 3 and the polycarboxylate water reducer viscosity detection sensor 4. When not detecting, move the connecting plate 11 upward until it is separated from the material in the storage tray 5, rotate the protective sleeve downward, cover the polycarboxylate water reducer concentration detection probe 3 and the polycarboxylate water reducer viscosity detection sensor 4 in the protective sleeve, and add a plug to the open lower end of the protective sleeve. At this time, the polycarboxylate water reducer concentration detection probe 3 and the polycarboxylate water reducer viscosity detection sensor 4 are isolated from the outside. In this way, when the connecting rod 12 acts as a stirring rod, it can protect the polycarboxylate water reducer concentration detection probe 3 and the polycarboxylate water reducer viscosity detection sensor 4. At the same time, the stop baffle 10 can also be pressed downward to drive the downward movement of the round rod 9, connecting plate 11, and connecting rod 12 to adjust the stirring height. When pressing down, the compression spring 13 is in a compressed state. Release the stop baffle 10, and driven by the action of the compression spring 13, the round rod 9 moves upward. Repeatedly press and release the stop baffle 10 and accompany the rotation of the round rod 9 to stir the mixed slurry up and down, making the stirring more uniform and the reaction more complete;

[0042] Step 3: After the mixed slurry is stirred, rotate the nut downward so that the nut moves downward along the leg of the support 2. Under the action of the self-weight of the storage tray 5, it moves downward. At this time, a gap will appear between the overlapping ring 16 and the discharge pipe 6, and the mixed slurry can enter the truncated cone mold 7 from the gap and the feed port 8;

[0043] Step 4: After the mixed slurry enters the truncated cone mold 7, rotate the nut upward. The nut pushes the ear plate 14 to move upward along the leg of the support 2, and then pushes the storage tray 5 to move upward until there is no gap between the overlapping ring 16 and the discharge pipe 6. Continue to rotate the nut upward, and the storage tray 5 will drive the truncated cone mold 7 to move upward through the action of the overlapping ring 16. When there is a gap between the truncated cone mold 7 and the detection bottom plate 1, the mixed slurry in the truncated cone mold 7 will flow on the detection bottom plate 1 until it stops. The diffusion size can be measured through the scale mark 17 to calculate the fluidity;

[0044] Step 5: After the fluidity of the polycarboxylate superplasticizer is detected, clean the mixed slurry on the detection base plate 1. The entire device can also be cleaned with clean water. A cavity can also be provided in the top rod of the bracket 2, and the cavity is communicated with an external water pumping device. A row of spray holes is opened on the cavity wall, and the lower ends of the spray holes face the storage tray 5. In this way, the water pumping device pumps clean water into the cavity, and through the spray holes, the polycarboxylate superplasticizer concentration detection probe 3, the polycarboxylate superplasticizer viscosity detection sensor 4, the storage tray 5, the discharge pipe 6, the frustum cone mold 7, and the detection base plate 1 are cleaned from top to bottom.

[0045] Finally, the most important contribution of the present invention compared with the prior art is that it can perform various detections on the polycarboxylate superplasticizer, and each detection is carried out in sequence without mutual influence, with higher practicability and can be widely promoted.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polycarboxylate water reducer detection device, characterized in that: it includes a detection bottom plate and an inverted U-shaped bracket. The feet of the bracket are fixed on the upper surface of the detection bottom plate, and a polycarboxylate water reducer concentration detection probe and a polycarboxylate water reducer viscosity detection sensor are respectively connected to the top rod of the bracket through a telescopic frame; a vertically adjustable holding tray is installed between the two feet of the bracket. A discharge pipe extending downward is provided at the center of the bottom of the holding tray. Both the polycarboxylate water reducer concentration detection probe and the polycarboxylate water reducer viscosity detection sensor extend into the holding tray; a truncated cone mold is placed at the center of the upper surface of the bottom plate. The upper end of the truncated cone mold is closed and the lower end is open. A plurality of equally spaced feed ports are opened on the side wall of the truncated cone mold near its upper end. The feed ports are covered by the pipe wall of the discharge pipe. When the holding tray moves downward, the mixed slurry flows into the truncated cone mold from the feed ports. When the holding tray moves upward, it drives the truncated cone mold to move upward, and the mixed slurry in the truncated cone mold flows onto the detection bottom plate for diffusion; the bottom of the holding tray near the discharge pipe is arranged obliquely downward. An overlapping ring extends outward from the upper end of the truncated cone mold, and the overlapping ring is placed on the bottom of the holding tray near the discharge pipe.

2. The polycarboxylate water reducer detection device according to claim 1, characterized in that: the telescopic frame includes a circular through hole opened on the top rod of the bracket. A round rod is vertically slidably installed in the circular through hole. A stop baffle is fixed at the upper end of the round rod. The lower end of the round rod extends into the inner side of the bracket and is fixed with a connecting plate. A connecting rod is fixed on the lower surface of each end of the connecting plate. The polycarboxylate water reducer concentration detection probe and the polycarboxylate water reducer viscosity detection sensor are respectively installed at the lower ends of the two connecting rods.

3. The polycarboxylate water reducer detection device according to claim 2, characterized in that: a pressing spring is arranged between the stop baffle and the top rod of the bracket, and the pressing spring is sleeved on the round rod.

4. The polycarboxylate water reducer detection device according to claim 3, characterized in that: two ear plates arranged symmetrically left and right are fixed on the outer side of the holding tray. Slide holes are opened on the ear plates, and the slide holes are slidably matched with the feet of the bracket. An adjusting member is arranged on the feet of the bracket, and the adjusting member abuts against the bottom of the ear plate.

5. The polycarboxylate water reducer detection device according to claim 4, characterized in that: the outer surface of the feet of the bracket is provided with an external thread, and the adjusting member is a nut, and the nut is screwed on the feet of the bracket.

6. The polycarboxylate water reducer detection device according to claim 1, characterized in that: four circularly arranged scale marks are provided on the upper surface of the detection bottom plate.

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