Polycarboxylate superplasticizer drying device

Abstract

The utility model belongs to the technical field of polycarboxylate superplasticizer production, and particularly discloses a polycarboxylate superplasticizer drying device which comprises a drying tank, the bottom of the drying tank is in a funnel shape, the top of the drying tank is slightly inclined downwards from inside to outside, a support is fixedly connected to the bottom of the surface of the drying tank, and a valve is fixedly connected to the bottom of the drying tank. The top of the drying tank is fixedly connected with a pump body, and the output end of the pump body is fixedly connected with an atomizing nozzle. The water reducing agent spraying device has the advantages that a water reducing agent is sucked through the pump body, then the water reducing agent is atomized and sprayed out through the atomizing spray head, meanwhile, external air is heated through the drying mechanism, and when the heated air makes contact with the atomized water reducing agent, water in the water reducing agent is rapidly evaporated, so that the water reducing agent is sprayed out. Then the dehydrated water reducing agent particles are pumped out through the material sucking mechanism and collected through the collecting mechanism, and due to the fact that the temperature of the surface of the drying tank is relatively low, water vapor can be liquefied when making contact with the drying tank and is attached to the surface of the drying tank.

Description

Technical Field

[0001] This utility model relates to the field of polycarboxylate superplasticizer production technology, specifically to a polycarboxylate superplasticizer drying device. Background Technology

[0002] Polycarboxylate superplasticizers, as high-performance concrete additives, possess strong adhesive properties due to their high molecular weight polymers. Traditional drying processes often present challenging problems: high temperatures can cause the superplasticizer to melt, while low temperatures can lead to solidification. Both scenarios result in the superplasticizer adhering to the equipment's inner walls. This not only directly reduces product yield but also causes significant material waste, increases equipment cleaning difficulty and production costs, becoming a key technical bottleneck restricting the large-scale production of polycarboxylate superplasticizers.

[0003] Patent publication number CN214075084U discloses a liquid drying device for polycarboxylate superplasticizer, comprising a device body, a servo motor disposed on the upper surface of the device body, a coupling disposed between the servo motor and the device body, a feed inlet disposed on the left side of the upper surface of the device body, an observation window disposed on the front surface of the device body, a temperature sensor disposed on the right surface of the device body, a controller disposed on the left surface of the device body, a rotating shaft disposed inside the device body, a stirring rod disposed on the lower surface of the rotating shaft, a heating tube disposed on the bottom surface of the device body, and support feet disposed around the lower end of the device body.

[0004] The above-mentioned device uses a method of heating the internal water-reducing agent while stirring to dry it. However, the polycarboxylate water-reducing agent contains high molecular weight polymers and has strong viscosity. During the drying process, it is easy to melt at high temperature or solidify at low temperature and adhere to the inner wall of the equipment, which leads to a decrease in the yield of water-reducing agent and material waste. Utility Model Content

[0005] The purpose of this invention is to provide a drying device for polycarboxylate superplasticizer to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] The device includes a drying tank, the bottom of which is funnel-shaped, and the top of which is slightly inclined downward from the inside out. A support is fixedly connected to the bottom surface of the drying tank, a valve is fixedly connected to the bottom of the drying tank, and a pump body is fixedly connected to the top of the drying tank. An atomizing nozzle is fixedly connected to the output end of the pump body, and the atomizing nozzle extends through the top plate of the drying tank into the interior of the drying tank.

[0008] It also includes a scraping mechanism, a drying mechanism, a material suction mechanism, and a collection mechanism;

[0009] The drying mechanism is used to dry the polycarboxylate superplasticizer sprayed from the atomizing nozzle;

[0010] The scraping mechanism is located inside the drying tank and is used to scrape off the undried water-reducing agent adhering to the inner wall of the drying tank.

[0011] The suction mechanism is used to absorb the dried water-reducing agent;

[0012] The collection mechanism is located at the bottom of the suction mechanism and is used to collect the water-reducing agent sucked up by the suction mechanism.

[0013] A further improvement of the present invention is that the drying mechanism includes a gas nozzle, the gas nozzles are arranged in a circumferential array on the upper side of the outer wall of the drying tank, the gas nozzles are inclined upward from the outside to the inside, the gas nozzles penetrate the drying tank and extend into the interior of the drying tank, a diversion pipe is fixedly connected to the outside of the gas nozzles, and a connecting pipe is fixedly connected to the surface of the diversion pipe.

[0014] A further improvement of this utility model is that: a heating box is fixedly connected to the end of the connecting pipe, heating resistance wires are evenly distributed inside the heating box, a blower is fixedly connected to the bottom of the heating box, and the output end of the blower extends into the interior of the heating box.

[0015] A further improvement of this utility model's technical solution is that: the scraping mechanism includes a motor, which is fixedly connected to the top of the drying tank; a reciprocating screw is fixedly connected to the output end of the motor; a driving block is movably connected to the surface of the reciprocating screw; a swing block is movably connected inside the driving block; the swing block inside the driving block is slidably connected to the threaded surface of the reciprocating screw; a rotating block is rotatably connected to the outside of the driving block; a multi-stage telescopic rod II is fixedly connected to the top of the rotating block; the top of the multi-stage telescopic rod II is fixedly connected to the top surface of the reciprocating screw; a scraper is fixedly connected to the surface of the rotating block; the scraper is arranged in a circumferential array; a multi-stage telescopic rod I is fixedly connected to the bottom of the driving block; a support base is fixedly connected to the bottom of the multi-stage telescopic rod I; the reciprocating screw is rotatably connected to the top of the support base; and the support base is fixedly connected to the bottom of the inner wall of the drying tank.

[0016] A further improvement of this utility model is that: the suction mechanism includes a suction pipe, which is fixedly connected to the lower side of the drying tank. A cyclone separator is fixedly connected to the end of the suction pipe. The suction pipe is tangent to the cyclone separator. The bottom of the cyclone separator is funnel-shaped. An air suction pipe is fixedly connected to the top of the cyclone separator. A mesh is fixedly connected to one end of the air suction pipe. An exhaust fan is fixedly connected to the other end of the air suction pipe. The input end of the exhaust fan is fixedly connected to the end of the air suction pipe.

[0017] A further improvement of the present invention is that the collection mechanism includes a collection box, which is fixedly connected to the bottom of the cyclone separator. The bottom of the collection box is inclined downward from back to front. The bottom front of the collection box has a discharge port, and the front of the discharge port is fixedly connected to an extended outlet. A slot is provided at the top of the extended outlet, and a baffle is inserted inside the slot at the top of the extended outlet.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model provides a drying device for polycarboxylate superplasticizer. The device draws in the superplasticizer via a pump and then atomizes and sprays it out through an atomizing nozzle. Simultaneously, the drying mechanism heats the external air. When the heated air comes into contact with the atomized superplasticizer, the moisture inside the superplasticizer evaporates rapidly. The dehydrated superplasticizer particles are then extracted by a suction mechanism and collected by a collection mechanism. Due to the relatively low surface temperature of the drying tank, water vapor liquefies upon contact with the tank and adheres to its surface. Some undried superplasticizer also adheres to the surface of the drying tank. This is scraped off by a scraping mechanism, discharged through a valve, and then pumped back into the drying tank for secondary drying. This reduces raw material waste and increases the yield of the superplasticizer.

[0020] 2. This utility model provides a polycarboxylate superplasticizer drying device. By simultaneously activating the pump, blower, and exhaust fan, the blower pumps air into the heating chamber. The air is then heated by a heating resistance wire. The heated air is evenly distributed to each gas nozzle through a distribution pipe. The superplasticizer liquid drawn in by the pump is then atomized by the atomizing nozzle. Because the gas nozzles are tilted upwards, the residence time of the superplasticizer in the air is increased. When the heated air comes into contact with the atomized superplasticizer, the moisture inside the superplasticizer evaporates rapidly, thus... To achieve rapid drying of the water-reducing agent, the evaporated water vapor condenses into water droplets at the top of the drying tank. The top of the drying tank is then tilted upwards, causing the water droplets to slide down to the bottom. The atomizing nozzle is then turned on to expel the water droplets. A blower draws gas out of the cyclone separator, reducing the pressure inside. The air inside the drying tank, carrying water-reducing agent particles, flows into the cyclone separator. Centrifugal force separates the gas from the water-reducing agent particles. The separated water-reducing agent particles are collected in a collection box and can be discharged by removing a baffle.

[0021] 3. This utility model provides a drying device for polycarboxylate superplasticizer. A motor drives a reciprocating screw to rotate, which in turn drives a drive block to move up and down. A multi-stage telescopic rod can drive a scraper on the rotating block to rotate, so that the scraper moves up and down while rotating, thereby scraping off the superplasticizer and condensed water droplets on the surface of the drying tank. The scraper is then discharged through a valve and pumped back into the drying tank for secondary drying, thereby reducing raw material waste and increasing the yield of superplasticizer. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the polycarboxylate superplasticizer drying device of this utility model;

[0024] Figure 2 This is a schematic diagram of the scraping mechanism of this utility model;

[0025] Figure 3 This is a schematic diagram showing the distribution of the gas nozzles of this utility model;

[0026] Figure 4 This is a schematic diagram of the drying mechanism of this utility model;

[0027] Figure 5This is a schematic diagram of the material suction mechanism of this utility model;

[0028] Figure 6 This is a schematic diagram of the collection mechanism of this utility model.

[0029] In the diagram: 2. Scraping mechanism; 3. Drying mechanism; 4. Suction mechanism; 5. Collection mechanism;

[0030] 11. Drying tank; 12. Support frame; 13. Valve; 14. Atomizing nozzle; 15. Pump body;

[0031] 21. Motor; 22. Reciprocating screw; 23. Drive block; 24. Rotating block; 25. Scraper; 26. Support base; 27. Multi-stage telescopic rod one; 28. Multi-stage telescopic rod two;

[0032] 31. Gas nozzle; 32. Diverter pipe; 33. Connecting pipe; 34. Heating box; 35. Heating resistance wire; 36. Blower;

[0033] 41. Suction pipe; 42. Cyclone separator; 43. Suction pipe; 44. Exhaust fan; 45. Partition screen;

[0034] 51. Collection box; 52. Discharge port; 53. Extended outlet; 54. Baffle. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figure 1-6 As shown, this utility model has the following three specific embodiments.

[0037] Example 1

[0038] This utility model provides a drying device for polycarboxylate superplasticizer, including a drying tank 11. The bottom of the drying tank 11 is funnel-shaped, and the top of the drying tank 11 is slightly inclined downward from the inside out. A support 12 is fixedly connected to the bottom surface of the drying tank 11, a valve 13 is fixedly connected to the bottom of the drying tank 11, a pump body 15 is fixedly connected to the top of the drying tank 11, and an atomizing nozzle 14 is fixedly connected to the output end of the pump body 15. The atomizing nozzle 14 penetrates the top plate of the drying tank 11 and extends into the interior of the drying tank 11.

[0039] It also includes a scraping mechanism 2, a drying mechanism 3, a suction mechanism 4, and a collection mechanism 5;

[0040] The drying unit 3 is used to dry the polycarboxylate superplasticizer sprayed from the atomizing nozzle 14;

[0041] The scraping mechanism 2 is located inside the drying tank 11 and is used to scrape off the undried water-reducing agent adhering to the inner wall of the drying tank 11.

[0042] The suction mechanism 4 is used to suck up the dried water-reducing agent;

[0043] The collection mechanism 5 is located at the bottom of the suction mechanism 4 and is used to collect the water-reducing agent sucked up by the suction mechanism 4.

[0044] In this embodiment, as Figure 1 As shown, the water-reducing agent is drawn in by the pump body 15 and then atomized and sprayed out through the atomizing nozzle 14. At the same time, the external air is heated by the drying mechanism 3. When the heated air comes into contact with the atomized water-reducing agent, the water inside the water-reducing agent evaporates rapidly. The dehydrated water-reducing agent particles are then extracted by the suction mechanism 4 and collected by the collection mechanism 5. Since the surface temperature of the drying tank 11 is relatively low, water vapor will liquefy when it comes into contact with the drying tank 11 and adhere to its surface. Some of the undried water-reducing agent will also adhere to the surface of the drying tank 11. It is scraped off by the scraping mechanism 2 and discharged through the valve 13. It is then pumped back into the drying tank 11 by the pump body 15 for secondary drying, thereby reducing raw material waste and increasing the yield of water-reducing agent.

[0045] Example 2

[0046] The difference from Embodiment 1 is that this embodiment discloses a drying mechanism 3, a material suction mechanism 4, and a collection mechanism 5.

[0047] Preferably, the drying mechanism 3 includes a gas nozzle 31, which is arranged in a circumferential array on the upper side of the outer wall of the drying tank 11. The gas nozzles 31 are inclined upward from the outside to the inside and extend through the drying tank 11 into the interior of the drying tank 11. A diversion pipe 32 is fixedly connected to the outside of the gas nozzles 31, and a connecting pipe 33 is fixedly connected to the surface of the diversion pipe 32.

[0048] A heating box 34 is fixedly connected to the end of the connecting pipe 33. Heating resistance wires 35 are evenly distributed inside the heating box 34. A blower 36 is fixedly connected to the bottom of the heating box 34. The output end of the blower 36 extends into the interior of the heating box 34.

[0049] The suction mechanism 4 includes a suction pipe 41, which is fixedly connected to the lower side of the drying tank 11. A cyclone separator 42 is fixedly connected to the end of the suction pipe 41. The suction pipe 41 is tangent to the cyclone separator 42. The bottom of the cyclone separator 42 is funnel-shaped. An air suction pipe 43 is fixedly connected to the top of the cyclone separator 42. A mesh 45 is fixedly connected to one end of the air suction pipe 43. An exhaust fan 44 is fixedly connected to the other end of the air suction pipe 43. The input end of the exhaust fan 44 is fixedly connected to the end of the air suction pipe 43.

[0050] The collection mechanism 5 includes a collection box 51, which is fixedly connected to the bottom of the cyclone separator 42. The bottom of the collection box 51 slopes downward from back to front. The bottom front of the collection box 51 has a discharge port 52. An extension outlet 53 is fixedly connected to the front of the discharge port 52. A slot is provided at the top of the extension outlet 53. A baffle 54 is inserted into the slot at the top of the extension outlet 53.

[0051] In this embodiment, as Figure 3-6 As shown, by simultaneously activating the pump body 15, blower 36, and exhaust fan 44, the blower 36 pumps air into the heating chamber 34, and then the air is heated by the heating resistance wire 35. The heated air is then evenly distributed to each gas nozzle 31 through the distribution pipe 32. The water-reducing agent liquid drawn by the pump body 15 is then atomized by the atomizing nozzle 14. Because the gas nozzle 31 is tilted upward, the residence time of the water-reducing agent in the air can be increased. When the heated air comes into contact with the atomized water-reducing agent, the moisture inside the water-reducing agent evaporates rapidly, thereby achieving rapid drying of the water-reducing agent. The evaporated water vapor condenses into water droplets at the top of the drying tank 11. The top of the drying tank 11 is then tilted upwards and slides down to the bottom. The atomizing nozzle 14 is then turned on to discharge the water vapor. The exhaust fan 44 draws out the gas inside the cyclone separator 42, reducing the pressure inside the cyclone separator 42. The air inside the drying tank 11 carries the water-reducing agent particles into the cyclone separator 42. Centrifugal force separates the gas from the water-reducing agent particles. The separated water-reducing agent particles are collected in the collection box 51 and can be discharged by pulling out the baffle 54.

[0052] Example 3

[0053] The difference from Embodiment 2 is that this embodiment discloses a scraping mechanism 2.

[0054] Preferably, the scraping mechanism 2 includes a motor 21, which is fixedly connected to the top of the drying tank 11. A reciprocating screw 22 is fixedly connected to the output end of the motor 21. A drive block 23 is movably connected to the surface of the reciprocating screw 22. A swing block is movably connected inside the drive block 23. The swing block inside the drive block 23 is slidably connected to the thread inside the surface of the reciprocating screw 22. A rotating block 24 is rotatably connected to the outside of the drive block 23. A multi-stage telescopic rod 28 is fixedly connected to the top of the rotating block 24. The top of the multi-stage telescopic rod 28 is fixedly connected to the top surface of the reciprocating screw 22. A scraper 25 is fixedly connected to the surface of the rotating block 24. The scraper 25 is arranged in a circumferential array. A multi-stage telescopic rod 27 is fixedly connected to the bottom of the drive block 23. A support base 26 is fixedly connected to the bottom of the multi-stage telescopic rod 27. The reciprocating screw 22 is rotatably connected to the top of the support base 26. The support base 26 is fixedly connected to the bottom of the inner wall of the drying tank 11.

[0055] In this embodiment, as Figure 2 As shown, the motor 21 drives the reciprocating screw 22 to rotate, and the reciprocating screw 22 drives the drive block 23 to move up and down reciprocally. The multi-stage telescopic rod 28 can drive the scraper 25 on the rotating block 24 to rotate, so that the scraper 25 moves up and down and rotates at the same time, thereby scraping off the water-reducing agent and condensed water droplets on the surface of the drying tank 11. Then, it is discharged through the valve 13 and sent back into the drying tank 11 for secondary drying through the pump body 15, thereby reducing raw material waste and increasing the yield of water-reducing agent.

[0056] The working principle of this utility model is as follows.

[0057] By simultaneously activating pump body 15, blower 36, and exhaust fan 44, air is pumped into the heating chamber 34 by blower 36. The air is then heated by heating resistance wire 35. The heated air is evenly distributed to each gas nozzle 31 through distributor pipe 32. The water-reducing agent liquid drawn in by pump body 15 is then atomized by atomizing nozzle 14. Because the gas nozzle 31 is tilted upwards, the water-reducing agent's residence time in the air is increased. When the heated air comes into contact with the atomized water-reducing agent, the moisture inside the agent evaporates rapidly, achieving rapid drying. The evaporated water vapor condenses into water droplets at the top of drying tank 11. The tilted top of drying tank 11 then slides towards the bottom, where motor 21 drives reciprocating screw 22 to rotate. The reciprocating screw 22, in turn, drives drive block 23 to move up and down. The movement of the multi-stage telescopic rod 28 drives the scraper 25 on the rotating block 24 to rotate, thus enabling the scraper 25 to move up and down while rotating, thereby scraping off the water-reducing agent and condensed water droplets on the surface of the drying tank 11. The scraper is then discharged through the valve 13 and pumped back into the drying tank 11 for secondary drying, thereby reducing raw material waste and increasing the yield of water-reducing agent. The atomizing nozzle 14 can then be unscrewed to discharge the water-reducing agent. The exhaust fan 44 draws out the gas inside the cyclone separator 42, reducing the pressure inside the cyclone separator 42. The air inside the drying tank 11 carrying the water-reducing agent particles flows into the cyclone separator 42, where centrifugal force separates the gas from the water-reducing agent particles. The separated water-reducing agent particles are discharged into the collection box 51 and collected. The particles can then be discharged by pulling out the baffle 54.

[0058] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. The selection and detailed description of these embodiments in this specification are intended to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A drying device for polycarboxylate superplasticizer, comprising a drying tank (11), characterized in that: The bottom of the drying tank (11) is funnel-shaped, and the top of the drying tank (11) is slightly inclined downward from the inside out. A bracket (12) is fixedly connected to the bottom surface of the drying tank (11), and a valve (13) is fixedly connected to the bottom of the drying tank (11). A pump body (15) is fixedly connected to the top of the drying tank (11), and an atomizing nozzle (14) is fixedly connected to the output end of the pump body (15). The atomizing nozzle (14) penetrates the top plate of the drying tank (11) and extends into the interior of the drying tank (11). It also includes a scraping mechanism (2), a drying mechanism (3), a material suction mechanism (4), and a collection mechanism (5); The drying mechanism (3) is used to dry the polycarboxylate superplasticizer sprayed from the atomizing nozzle (14); The scraping mechanism (2) is located inside the drying tank (11) and is used to scrape off the undried water-reducing agent adhering to the inner wall of the drying tank (11); The suction mechanism (4) is used to suck up the dried water-reducing agent; The collection mechanism (5) is located at the bottom of the suction mechanism (4) and is used to collect the water-reducing agent sucked up by the suction mechanism (4).

2. The polycarboxylate superplasticizer drying device according to claim 1, characterized in that: The drying mechanism (3) includes a gas nozzle (31), which is arranged in a circumferential array on the upper side of the outer wall of the drying tank (11). The gas nozzle (31) is inclined upward from the outside to the inside. The gas nozzle (31) penetrates the drying tank (11) and extends into the interior of the drying tank (11). A diversion pipe (32) is fixedly connected to the outside of the gas nozzle (31), and a connecting pipe (33) is fixedly connected to the surface of the diversion pipe (32).

3. The polycarboxylate superplasticizer drying device according to claim 2, characterized in that: The end of the connecting pipe (33) is fixedly connected to a heating box (34), and heating resistance wires (35) are evenly distributed inside the heating box (34). A blower (36) is fixedly connected to the bottom of the heating box (34), and the output end of the blower (36) extends into the interior of the heating box (34).

4. The polycarboxylate superplasticizer drying device according to claim 1, characterized in that: The scraping mechanism (2) includes a motor (21), which is fixedly connected to the top of the drying tank (11). A reciprocating screw (22) is fixedly connected to the output end of the motor (21). A driving block (23) is movably connected to the surface of the reciprocating screw (22). A swing block is movably connected inside the driving block (23). The swing block inside the driving block (23) is slidably connected to the thread inside the surface of the reciprocating screw (22). A rotating block (24) is rotatably connected to the outside of the driving block (23). A multi-element rotating block (24) is fixedly connected to the top of the rotating block (24). Multi-stage telescopic rod two (28), the top of the multi-stage telescopic rod two (28) is fixedly connected to the top surface of the reciprocating screw (22), the surface of the rotating block (24) is fixedly connected to a scraper (25), the scraper (25) is distributed in a circumferential array, the bottom of the driving block (23) is fixedly connected to a multi-stage telescopic rod one (27), the bottom of the multi-stage telescopic rod one (27) is fixedly connected to a support seat (26), the reciprocating screw (22) is rotatably connected to the top of the support seat (26), and the support seat (26) is fixedly connected to the bottom of the inner wall of the drying tank (11).

5. A polycarboxylate superplasticizer drying device according to claim 1, characterized in that: The suction mechanism (4) includes a suction pipe (41), which is fixedly connected to the lower side of the drying tank (11). A cyclone separator (42) is fixedly connected to the end of the suction pipe (41). The suction pipe (41) is tangent to the cyclone separator (42). The bottom of the cyclone separator (42) is funnel-shaped. A suction pipe (43) is fixedly connected to the top of the cyclone separator (42). A mesh (45) is fixedly connected to one end of the suction pipe (43). A blower (44) is fixedly connected to the other end of the suction pipe (43). The input end of the blower (44) is fixedly connected to the end of the suction pipe (43).

6. A polycarboxylate superplasticizer drying device according to claim 5, characterized in that: The collection mechanism (5) includes a collection box (51), which is fixedly connected to the bottom of the cyclone separator (42). The bottom of the collection box (51) is inclined downward from back to front. The bottom of the front of the collection box (51) has a discharge port (52). An extension outlet (53) is fixedly connected to the front of the discharge port (52). A slot is provided at the top of the extension outlet (53). A baffle (54) is inserted into the slot at the top of the extension outlet (53).

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